Merge branch 'master' into feature/chart-editor-importer

Project.xml

@@ -106,7 +106,10 @@
 	<haxelib name="polymod" /> <!-- Modding framework -->
 	<haxelib name="flxanimate" /> <!-- Texture atlas rendering -->
 	<haxelib name="hxCodec" /> <!-- Video playback -->
+
 	<haxelib name="json2object" /> <!-- JSON parsing -->
+	<haxelib name="tink_json" /> <!-- JSON parsing -->
+
 	<haxelib name="thx.semver" />
 	<haxelib name="hxcpp-debug-server" if="desktop debug" />
 	<!--Disable the Flixel core focus lost screen-->

hmm.json

@@ -116,6 +116,11 @@
       "name": "thx.semver",
       "type": "haxelib",
       "version": "0.2.2"
+    },
+    {
+      "name": "tink_json",
+      "type": "haxelib",
+      "version": null
     }
   ]
-}
+}

source/funkin/Conductor.hx

@@ -1,23 +1,18 @@
 package funkin;
 
-import funkin.play.song.SongData.SongTimeChange;
+import funkin.util.Constants;
 import flixel.util.FlxSignal;
+import flixel.math.FlxMath;
+import funkin.SongLoad.SwagSong;
 import funkin.play.song.Song.SongDifficulty;
-
+import funkin.play.song.SongData.SongTimeChange;
-typedef BPMChangeEvent =
-{
-  var stepTime:Int;
-  var songTime:Float;
-  var bpm:Float;
-}
 
 /**
- * A global source of truth for timing information.
+ * A core class which handles musical timing throughout the game,
+ * both in gameplay and in menus.
  */
 class Conductor
 {
-  static final STEPS_PER_BEAT:Int = 4;
-
   // onBeatHit is called every quarter note
   // onStepHit is called every sixteenth note
   // 4/4 = 4 beats per measure = 16 steps per measure
@@ -33,11 +28,22 @@ class Conductor
   //   60 BPM = 240 sixteenth notes per minute = 4 onStepHit per second
   // 7/8 = 3.5 beats per measure = 14 steps per measure
 
+  /**
+   * The list of time changes in the song.
+   * There should be at least one time change (at the beginning of the song) to define the BPM.
+   */
+  static var timeChanges:Array<SongTimeChange> = [];
+
+  /**
+   * The current time change.
+   */
+  static var currentTimeChange:SongTimeChange;
+
   /**
    * The current position in the song in milliseconds.
    * Updated every frame based on the audio position.
    */
-  public static var songPosition:Float;
+  public static var songPosition:Float = 0;
 
   /**
    * Beats per minute of the current song at the current time.
@@ -48,33 +54,17 @@ class Conductor
   {
     if (bpmOverride != null) return bpmOverride;
 
-    if (currentTimeChange == null) return 100;
+    if (currentTimeChange == null) return Constants.DEFAULT_BPM;
 
     return currentTimeChange.bpm;
   }
 
+  /**
+   * The current value set by `forceBPM`.
+   * If false, BPM is determined by time changes.
+   */
   static var bpmOverride:Null<Float> = null;
 
-  /**
-   * Current position in the song, in whole measures.
-   */
-  public static var currentMeasure(default, null):Int;
-
-  /**
-   * Current position in the song, in whole beats.
-  **/
-  public static var currentBeat(default, null):Int;
-
-  /**
-   * Current position in the song, in whole steps.
-   */
-  public static var currentStep(default, null):Int;
-
-  /**
-   * Current position in the song, in steps and fractions of a step.
-   */
-  public static var currentStepTime(default, null):Float;
-
   /**
    * Duration of a measure in milliseconds. Calculated based on bpm.
    */
@@ -86,119 +76,99 @@ class Conductor
   }
 
   /**
-   * Duration of a beat (quarter note) in milliseconds. Calculated based on bpm.
+   * Duration of a beat in milliseconds. Calculated based on bpm.
    */
   public static var beatLengthMs(get, null):Float;
 
   static function get_beatLengthMs():Float
   {
-    // Tied directly to BPM.
+    return ((Constants.SECS_PER_MIN / bpm) * Constants.MS_PER_SEC);
-    return ((60 / bpm) * 1000);
   }
 
   /**
-   * Duration of a step (sixteenth) in milliseconds. Calculated based on bpm.
+   * Duration of a step (quarter) in milliseconds. Calculated based on bpm.
    */
   public static var stepLengthMs(get, null):Float;
 
   static function get_stepLengthMs():Float
   {
-    return beatLengthMs / STEPS_PER_BEAT;
+    return beatLengthMs / timeSignatureNumerator;
   }
 
-  /**
-   * The numerator of the current time signature (number of notes in a measure)
-   */
   public static var timeSignatureNumerator(get, null):Int;
 
   static function get_timeSignatureNumerator():Int
   {
-    if (currentTimeChange == null) return 4;
+    if (currentTimeChange == null) return Constants.DEFAULT_TIME_SIGNATURE_NUM;
 
     return currentTimeChange.timeSignatureNum;
   }
 
-  /**
-   * The numerator of the current time signature (length of notes in a measure)
-   */
   public static var timeSignatureDenominator(get, null):Int;
 
   static function get_timeSignatureDenominator():Int
   {
-    if (currentTimeChange == null) return 4;
+    if (currentTimeChange == null) return Constants.DEFAULT_TIME_SIGNATURE_DEN;
 
     return currentTimeChange.timeSignatureDen;
   }
 
-  public static var offset:Float = 0;
+  /**
-
+   * Current position in the song, in measures.
-  // TODO: What's the difference between visualOffset and audioOffset?
+   */
-  public static var visualOffset:Float = 0;
+  public static var currentMeasure(default, null):Int;
-  public static var audioOffset:Float = 0;
-
-  //
-  // Signals
-  //
 
   /**
-   * Signal that is dispatched every measure.
+   * Current position in the song, in beats.
-   * At 120 BPM 4/4, this is dispatched every 2 seconds.
-   * At 120 BPM 3/4, this is dispatched every 1.5 seconds.
    */
-  public static var measureHit(default, null):FlxSignal = new FlxSignal();
+  public static var currentBeat(default, null):Int;
 
   /**
-   * Signal that is dispatched every beat.
+   * Current position in the song, in steps.
-   * At 120 BPM 4/4, this is dispatched every 0.5 seconds.
-   * At 120 BPM 3/4, this is dispatched every 0.5 seconds.
    */
+  public static var currentStep(default, null):Int;
+
+  /**
+   * Current position in the song, in measures and fractions of a measure.
+   */
+  public static var currentMeasureTime(default, null):Float;
+
+  /**
+   * Current position in the song, in beats and fractions of a measure.
+   */
+  public static var currentBeatTime(default, null):Float;
+
+  /**
+   * Current position in the song, in steps and fractions of a step.
+   */
+  public static var currentStepTime(default, null):Float;
+
   public static var beatHit(default, null):FlxSignal = new FlxSignal();
-
-  /**
-   * Signal that is dispatched when a step is hit.
-   * At 120 BPM 4/4, this is dispatched every 0.125 seconds.
-   * At 120 BPM 3/4, this is dispatched every 0.125 seconds.
-   */
   public static var stepHit(default, null):FlxSignal = new FlxSignal();
 
-  //
-  // Internal Variables
-  //
-
-  /**
-   * The list of time changes in the song.
-   * There should be at least one time change (at the beginning of the song) to define the BPM.
-   */
-  static var timeChanges:Array<SongTimeChange> = [];
-
-  /**
-   * The current time change.
-   */
-  static var currentTimeChange:SongTimeChange;
-
   public static var lastSongPos:Float;
+  public static var visualOffset:Float = 0;
+  public static var audioOffset:Float = 0;
+  public static var offset:Float = 0;
 
-  /**
+  public static var beatsPerMeasure(get, null):Float;
-   * The number of beats (whole notes) in a measure.
-   */
-  public static var beatsPerMeasure(get, null):Int;
 
-  static function get_beatsPerMeasure():Int
+  static function get_beatsPerMeasure():Float
   {
-    return timeSignatureNumerator;
+    // NOTE: Not always an integer, for example 7/8 is 3.5 beats per measure
+    return stepsPerMeasure / Constants.STEPS_PER_BEAT;
   }
 
-  /**
-   * The number of steps (quarter-notes) in a measure.
-   */
   public static var stepsPerMeasure(get, null):Int;
 
   static function get_stepsPerMeasure():Int
   {
-    // This is always 4, b
+    // TODO: Is this always an integer?
-    return timeSignatureNumerator * 4;
+    return Std.int(timeSignatureNumerator / timeSignatureDenominator * Constants.STEPS_PER_BEAT * Constants.STEPS_PER_BEAT);
   }
 
+  function new() {}
+
   /**
    * Forcibly defines the current BPM of the song.
    * Useful for things like the chart editor that need to manipulate BPM in real time.
@@ -208,16 +178,11 @@ class Conductor
    * WARNING: Avoid this for things like setting the BPM of the title screen music,
    * you should have a metadata file for it instead.
    */
-  public static function forceBPM(?bpm:Float = null):Void
+  public static function forceBPM(?bpm:Float = null)
   {
-    if (bpm != null)
+    if (bpm != null) trace('[CONDUCTOR] Forcing BPM to ' + bpm);
-    {
-      trace('[CONDUCTOR] Forcing BPM to ' + bpm);
-    }
     else
-    {
       trace('[CONDUCTOR] Resetting BPM to default');
-    }
     Conductor.bpmOverride = bpm;
   }
 
@@ -228,13 +193,12 @@ class Conductor
    * @param	songPosition The current position in the song in milliseconds.
    *        Leave blank to use the FlxG.sound.music position.
    */
-  public static function update(songPosition:Float = null):Void
+  public static function update(songPosition:Float = null)
   {
     if (songPosition == null) songPosition = (FlxG.sound.music != null) ? FlxG.sound.music.time + Conductor.offset : 0.0;
 
-    var oldMeasure:Int = currentMeasure;
+    var oldBeat = currentBeat;
-    var oldBeat:Int = currentBeat;
+    var oldStep = currentStep;
-    var oldStep:Int = currentStep;
 
     Conductor.songPosition = songPosition;
 
@@ -252,16 +216,23 @@ class Conductor
     }
     else if (currentTimeChange != null)
     {
-      currentStepTime = (currentTimeChange.beatTime * 4) + (songPosition - currentTimeChange.timeStamp) / stepLengthMs;
+      // roundDecimal prevents representing 8 as 7.9999999
+      currentStepTime = FlxMath.roundDecimal((currentTimeChange.beatTime * 4) + (songPosition - currentTimeChange.timeStamp) / stepLengthMs, 6);
+      currentBeatTime = currentStepTime / Constants.STEPS_PER_BEAT;
+      currentMeasureTime = currentStepTime / stepsPerMeasure;
       currentStep = Math.floor(currentStepTime);
-      currentBeat = Math.floor(currentStep / 4);
+      currentBeat = Math.floor(currentBeatTime);
+      currentMeasure = Math.floor(currentMeasureTime);
     }
     else
     {
       // Assume a constant BPM equal to the forced value.
-      currentStepTime = (songPosition / stepLengthMs);
+      currentStepTime = FlxMath.roundDecimal((songPosition / stepLengthMs), 4);
+      currentBeatTime = currentStepTime / Constants.STEPS_PER_BEAT;
+      currentMeasureTime = currentStepTime / stepsPerMeasure;
       currentStep = Math.floor(currentStepTime);
-      currentBeat = Math.floor(currentStep / 4);
+      currentBeat = Math.floor(currentBeatTime);
+      currentMeasure = Math.floor(currentMeasureTime);
     }
 
     // FlxSignals are really cool.
@@ -274,31 +245,52 @@ class Conductor
     {
       beatHit.dispatch();
     }
-
-    if (currentMeasure != oldMeasure)
-    {
-      measureHit.dispatch();
-    }
   }
 
-  public static function mapTimeChanges(songTimeChanges:Array<SongTimeChange>):Void
+  public static function mapTimeChanges(songTimeChanges:Array<SongTimeChange>)
   {
     timeChanges = [];
 
     for (currentTimeChange in songTimeChanges)
     {
+      // TODO: Maybe handle this different?
+      // Do we care about BPM at negative timestamps?
+      // Without any custom handling, `currentStepTime` becomes non-zero at `songPosition = 0`.
+      if (currentTimeChange.timeStamp < 0.0) currentTimeChange.timeStamp = 0.0;
+
+      if (currentTimeChange.beatTime == null)
+      {
+        if (currentTimeChange.timeStamp <= 0.0)
+        {
+          currentTimeChange.beatTime = 0.0;
+        }
+        else
+        {
+          // Calculate the beat time of this timestamp.
+          currentTimeChange.beatTime = 0.0;
+
+          if (currentTimeChange.timeStamp > 0.0 && timeChanges.length > 0)
+          {
+            var prevTimeChange:SongTimeChange = timeChanges[timeChanges.length - 1];
+            currentTimeChange.beatTime = prevTimeChange.beatTime
+              + ((currentTimeChange.timeStamp - prevTimeChange.timeStamp) * prevTimeChange.bpm / Constants.SECS_PER_MIN / Constants.MS_PER_SEC);
+          }
+        }
+      }
+
       timeChanges.push(currentTimeChange);
     }
 
     trace('Done mapping time changes: ' + timeChanges);
 
-    // Done.
+    // Update currentStepTime
+    Conductor.update(Conductor.songPosition);
   }
 
   /**
    * Given a time in milliseconds, return a time in steps.
    */
-  public static function getTimeInSteps(ms:Float):Int
+  public static function getTimeInSteps(ms:Float):Float
   {
     if (timeChanges.length == 0)
     {
@@ -307,7 +299,7 @@ class Conductor
     }
     else
     {
-      var resultStep:Int = 0;
+      var resultStep:Float = 0;
 
       var lastTimeChange:SongTimeChange = timeChanges[0];
       for (timeChange in timeChanges)
@@ -329,4 +321,14 @@ class Conductor
       return resultStep;
     }
   }
+
+  public static function reset():Void
+  {
+    beatHit.removeAll();
+    stepHit.removeAll();
+
+    mapTimeChanges([]);
+    forceBPM(null);
+    update(0);
+  }
 }

source/funkin/InitState.hx

@@ -1,8 +1,7 @@
 package funkin;
 
-import funkin.play.stage.StageData.StageDataParser;
-import flixel.addons.transition.FlxTransitionSprite.GraphicTransTileDiamond;
 import flixel.addons.transition.FlxTransitionableState;
+import flixel.addons.transition.FlxTransitionSprite.GraphicTransTileDiamond;
 import flixel.addons.transition.TransitionData;
 import flixel.graphics.FlxGraphic;
 import flixel.math.FlxPoint;
@@ -10,13 +9,17 @@ import flixel.math.FlxRect;
 import flixel.system.debug.log.LogStyle;
 import flixel.util.FlxColor;
 import funkin.modding.module.ModuleHandler;
-import funkin.play.PlayState;
 import funkin.play.character.CharacterData.CharacterDataParser;
+import funkin.play.cutscene.dialogue.ConversationDataParser;
+import funkin.play.cutscene.dialogue.DialogueBoxDataParser;
+import funkin.play.cutscene.dialogue.SpeakerDataParser;
 import funkin.play.event.SongEventData.SongEventParser;
+import funkin.play.PlayState;
 import funkin.play.song.SongData.SongDataParser;
+import funkin.play.stage.StageData.StageDataParser;
 import funkin.ui.PreferencesMenu;
-import funkin.util.WindowUtil;
 import funkin.util.macro.MacroUtil;
+import funkin.util.WindowUtil;
 import openfl.display.BitmapData;
 #if discord_rpc
 import Discord.DiscordClient;
@@ -157,6 +160,9 @@ class InitState extends FlxTransitionableState
 
     funkin.data.level.LevelRegistry.instance.loadEntries();
     SongEventParser.loadEventCache();
+    ConversationDataParser.loadConversationCache();
+    DialogueBoxDataParser.loadDialogueBoxCache();
+    SpeakerDataParser.loadSpeakerCache();
     SongDataParser.loadSongCache();
     StageDataParser.loadStageCache();
     CharacterDataParser.loadCharacterCache();
@@ -216,7 +222,7 @@ class InitState extends FlxTransitionableState
     #elseif ANIMATE
     FlxG.switchState(new funkin.ui.animDebugShit.FlxAnimateTest());
     #elseif CHARTING
-    FlxG.switchState(new ChartingState());
+    FlxG.switchState(new funkin.ui.debug.charting.ChartEditorState());
     #elseif STAGEBUILD
     FlxG.switchState(new StageBuilderState());
     #elseif FIGHT

source/funkin/MusicBeatState.hx

@@ -1,5 +1,6 @@
 package funkin;
 
+import funkin.modding.IScriptedClass.IEventHandler;
 import flixel.FlxState;
 import flixel.FlxSubState;
 import flixel.addons.ui.FlxUIState;
@@ -15,7 +16,7 @@ import funkin.util.SortUtil;
  * MusicBeatState actually represents the core utility FlxState of the game.
  * It includes functionality for event handling, as well as maintaining BPM-based update events.
  */
-class MusicBeatState extends FlxUIState
+class MusicBeatState extends FlxUIState implements IEventHandler
 {
   var controls(get, never):Controls;
 
@@ -66,9 +67,11 @@ class MusicBeatState extends FlxUIState
     if (FlxG.keys.justPressed.F5) debug_refreshModules();
 
     // Display Conductor info in the watch window.
-    FlxG.watch.addQuick("songPos", Conductor.songPosition);
+    FlxG.watch.addQuick("songPosition", Conductor.songPosition);
-    FlxG.watch.addQuick("currentStepTime", Conductor.currentStepTime);
     FlxG.watch.addQuick("bpm", Conductor.bpm);
+    FlxG.watch.addQuick("currentMeasureTime", Conductor.currentBeatTime);
+    FlxG.watch.addQuick("currentBeatTime", Conductor.currentBeatTime);
+    FlxG.watch.addQuick("currentStepTime", Conductor.currentStepTime);
 
     dispatchEvent(new UpdateScriptEvent(elapsed));
   }
@@ -92,7 +95,7 @@ class MusicBeatState extends FlxUIState
     add(rightWatermarkText);
   }
 
-  function dispatchEvent(event:ScriptEvent)
+  public function dispatchEvent(event:ScriptEvent)
   {
     ModuleHandler.callEvent(event);
   }

source/funkin/MusicBeatSubState.hx

@@ -1,8 +1,8 @@
 package funkin;
 
 import flixel.FlxSubState;
+import funkin.modding.IScriptedClass.IEventHandler;
 import flixel.util.FlxColor;
-import funkin.Conductor.BPMChangeEvent;
 import funkin.modding.events.ScriptEvent;
 import funkin.modding.module.ModuleHandler;
 import flixel.text.FlxText;
@@ -11,7 +11,7 @@ import funkin.modding.PolymodHandler;
 /**
  * MusicBeatSubState reincorporates the functionality of MusicBeatState into an FlxSubState.
  */
-class MusicBeatSubState extends FlxSubState
+class MusicBeatSubState extends FlxSubState implements IEventHandler
 {
   public var leftWatermarkText:FlxText = null;
   public var rightWatermarkText:FlxText = null;
@@ -99,7 +99,7 @@ class MusicBeatSubState extends FlxSubState
     return true;
   }
 
-  function dispatchEvent(event:ScriptEvent)
+  public function dispatchEvent(event:ScriptEvent)
   {
     ModuleHandler.callEvent(event);
   }

source/funkin/Paths.hx

@@ -6,7 +6,8 @@ import openfl.utils.Assets as OpenFlAssets;
 
 class Paths
 {
-  inline public static var SOUND_EXT = #if web "mp3" #else "ogg" #end;
+  public static var SOUND_EXT = #if web "mp3" #else "ogg" #end;
+  public static var VIDEO_EXT = "mp4";
 
   static var currentLevel:String;
 
@@ -96,14 +97,19 @@ class Paths
     return getPath('music/$key.$SOUND_EXT', MUSIC, library);
   }
 
-  inline static public function voices(song:String, ?suffix:String)
+  inline static public function videos(key:String, ?library:String)
+  {
+    return getPath('videos/$key.$VIDEO_EXT', BINARY, library);
+  }
+
+  inline static public function voices(song:String, ?suffix:String = '')
   {
     if (suffix == null) suffix = ""; // no suffix, for a sorta backwards compatibility with older-ish voice files
 
     return 'songs:assets/songs/${song.toLowerCase()}/Voices$suffix.$SOUND_EXT';
   }
 
-  inline static public function inst(song:String, ?suffix:String)
+  inline static public function inst(song:String, ?suffix:String = '')
   {
     return 'songs:assets/songs/${song.toLowerCase()}/Inst$suffix.$SOUND_EXT';
   }

source/funkin/PauseSubState.hx

@@ -4,7 +4,7 @@ import funkin.play.PlayStatePlaylist;
 import flixel.FlxSprite;
 import flixel.addons.transition.FlxTransitionableState;
 import flixel.group.FlxGroup.FlxTypedGroup;
-import flixel.system.FlxSound;
+import flixel.sound.FlxSound;
 import flixel.text.FlxText;
 import flixel.tweens.FlxEase;
 import flixel.tweens.FlxTween;

source/funkin/TitleState.hx

@@ -12,6 +12,8 @@ import flixel.util.FlxTimer;
 import funkin.audiovis.SpectogramSprite;
 import funkin.shaderslmfao.ColorSwap;
 import funkin.shaderslmfao.LeftMaskShader;
+import funkin.play.song.SongData.SongDataParser;
+import funkin.play.song.SongData.SongMetadata;
 import funkin.shaderslmfao.TitleOutline;
 import funkin.ui.AtlasText;
 import funkin.util.Constants;
@@ -135,12 +137,7 @@ class TitleState extends MusicBeatState
 
   function startIntro()
   {
-    if (FlxG.sound.music == null || !FlxG.sound.music.playing)
+    playMenuMusic();
-    {
-      FlxG.sound.playMusic(Paths.music('freakyMenu'), 0);
-      FlxG.sound.music.fadeIn(4, 0, 0.7);
-      Conductor.forceBPM(Constants.FREAKY_MENU_BPM);
-    }
 
     persistentUpdate = true;
 
@@ -234,6 +231,18 @@ class TitleState extends MusicBeatState
     if (FlxG.sound.music != null) FlxG.sound.music.onComplete = function() FlxG.switchState(new VideoState());
   }
 
+  function playMenuMusic():Void
+  {
+    if (FlxG.sound.music == null || !FlxG.sound.music.playing)
+    {
+      var freakyMenuMetadata:SongMetadata = SongDataParser.parseMusicMetadata('freakyMenu');
+      Conductor.mapTimeChanges(freakyMenuMetadata.timeChanges);
+
+      FlxG.sound.playMusic(Paths.music('freakyMenu/freakyMenu'), 0);
+      FlxG.sound.music.fadeIn(4, 0, 0.7);
+    }
+  }
+
   function getIntroTextShit():Array<Array<String>>
   {
     var fullText:String = Assets.getText(Paths.txt('introText'));

source/funkin/import.hx

@@ -8,7 +8,8 @@ import flixel.FlxG; // This one in particular causes a compile error if you're u
 // These are great.
 using Lambda;
 using StringTools;
-using funkin.util.tools.MapTools;
+using funkin.util.tools.ArrayTools;
 using funkin.util.tools.IteratorTools;
+using funkin.util.tools.MapTools;
 using funkin.util.tools.StringTools;
 #end

source/funkin/modding/IScriptedClass.hx

@@ -16,6 +16,15 @@ interface IScriptedClass
   public function onUpdate(event:UpdateScriptEvent):Void;
 }
 
+/**
+ * Defines an element which can receive script events.
+ * For example, the PlayState dispatches the event to all its child elements.
+ */
+interface IEventHandler
+{
+  public function dispatchEvent(event:ScriptEvent):Void;
+}
+
 /**
  * Defines a set of callbacks available to scripted classes which can follow the game between states.
  */
@@ -150,3 +159,19 @@ interface IPlayStateScriptedClass extends IScriptedClass
    */
   public function onCountdownEnd(event:CountdownScriptEvent):Void;
 }
+
+/**
+ * Defines a set of callbacks activated during a dialogue conversation.
+ */
+interface IDialogueScriptedClass extends IScriptedClass
+{
+  /**
+   * Called as the dialogue starts, and before the first dialogue text is displayed.
+   */
+  public function onDialogueStart(event:DialogueScriptEvent):Void;
+
+  public function onDialogueCompleteLine(event:DialogueScriptEvent):Void;
+  public function onDialogueLine(event:DialogueScriptEvent):Void;
+  public function onDialogueSkip(event:DialogueScriptEvent):Void;
+  public function onDialogueEnd(event:DialogueScriptEvent):Void;
+}

source/funkin/modding/base/ScriptedFlxSpriteGroup.hx

@@ -5,4 +5,4 @@ package funkin.modding.base;
  * Create a scripted class that extends FlxSpriteGroup to use this.
  */
 @:hscriptClass
-class ScriptedFlxSpriteGroup extends flixel.group.FlxSpriteGroup implements HScriptedClass {}
+class ScriptedFlxSpriteGroup extends flixel.group.FlxSpriteGroup.FlxTypedSpriteGroup<flixel.FlxSprite> implements HScriptedClass {}

source/funkin/modding/events/ScriptEvent.hx

@@ -3,6 +3,7 @@ package funkin.modding.events;
 import flixel.FlxState;
 import flixel.FlxSubState;
 import funkin.noteStuff.NoteBasic.NoteDir;
+import funkin.play.cutscene.dialogue.Conversation;
 import funkin.play.Countdown.CountdownStep;
 import openfl.events.EventType;
 import openfl.events.KeyboardEvent;
@@ -230,10 +231,42 @@ class ScriptEvent
   public static inline final SUBSTATE_CLOSE_END:ScriptEventType = 'SUBSTATE_CLOSE_END';
 
   /**
-   * Called when the game is exiting the current FlxState.
+   * Called when the game starts a conversation.
    *
    * This event is not cancelable.
    */
+  public static inline final DIALOGUE_START:ScriptEventType = 'DIALOGUE_START';
+
+  /**
+   * Called to display the next line of conversation.
+   *
+   * This event IS cancelable! Canceling this event will prevent the conversation from moving to the next line.
+   * - This event is called when the conversation starts, or when the user presses ACCEPT to advance the conversation.
+   */
+  public static inline final DIALOGUE_LINE:ScriptEventType = 'DIALOGUE_LINE';
+
+  /**
+   * Called to skip scrolling the current line of conversation.
+   *
+   * This event IS cancelable! Canceling this event will prevent the conversation from skipping to the next line.
+   * - This event is called when the user presses ACCEPT to advance the conversation while it is already advancing.
+   */
+  public static inline final DIALOGUE_COMPLETE_LINE:ScriptEventType = 'DIALOGUE_COMPLETE_LINE';
+
+  /**
+   * Called to skip the conversation.
+   *
+   * This event IS cancelable! Canceling this event will prevent the conversation from skipping.
+   */
+  public static inline final DIALOGUE_SKIP:ScriptEventType = 'DIALOGUE_SKIP';
+
+  /**
+   * Called when the game ends a conversation.
+   *
+   * This event is not cancelable.
+   */
+  public static inline final DIALOGUE_END:ScriptEventType = 'DIALOGUE_END';
+
   /**
    * If true, the behavior associated with this event can be prevented.
    * For example, cancelling COUNTDOWN_START should prevent the countdown from starting,
@@ -489,6 +522,28 @@ class CountdownScriptEvent extends ScriptEvent
   }
 }
 
+/**
+ * An event that is fired during a dialogue.
+ */
+class DialogueScriptEvent extends ScriptEvent
+{
+  /**
+   * The dialogue being referenced by the event.
+   */
+  public var conversation(default, null):Conversation;
+
+  public function new(type:ScriptEventType, conversation:Conversation, cancelable:Bool = true):Void
+  {
+    super(type, cancelable);
+    this.conversation = conversation;
+  }
+
+  public override function toString():String
+  {
+    return 'DialogueScriptEvent(type=$type, conversation=$conversation)';
+  }
+}
+
 /**
  * An event that is fired when the player presses a key.
  */

source/funkin/modding/events/ScriptEventDispatcher.hx

@@ -45,9 +45,32 @@ class ScriptEventDispatcher
       }
     }
 
+    if (Std.isOfType(target, IDialogueScriptedClass))
+    {
+      var t:IDialogueScriptedClass = cast(target, IDialogueScriptedClass);
+      switch (event.type)
+      {
+        case ScriptEvent.DIALOGUE_START:
+          t.onDialogueStart(cast event);
+          return;
+        case ScriptEvent.DIALOGUE_LINE:
+          t.onDialogueLine(cast event);
+          return;
+        case ScriptEvent.DIALOGUE_COMPLETE_LINE:
+          t.onDialogueCompleteLine(cast event);
+          return;
+        case ScriptEvent.DIALOGUE_SKIP:
+          t.onDialogueSkip(cast event);
+          return;
+        case ScriptEvent.DIALOGUE_END:
+          t.onDialogueEnd(cast event);
+          return;
+      }
+    }
+
     if (Std.isOfType(target, IPlayStateScriptedClass))
     {
-      var t = cast(target, IPlayStateScriptedClass);
+      var t:IPlayStateScriptedClass = cast(target, IPlayStateScriptedClass);
       switch (event.type)
       {
         case ScriptEvent.NOTE_HIT:
@@ -133,7 +156,7 @@ class ScriptEventDispatcher
     }
 
     // If you get a crash on this line, that means ERIC FUCKED UP!
-    throw 'No function called for event type: ${event.type}';
+    // throw 'No function called for event type: ${event.type}';
   }
 
   public static function callEventOnAllTargets(targets:Iterator<IScriptedClass>, event:ScriptEvent):Void

source/funkin/play/GameOverSubState.hx

@@ -3,7 +3,7 @@ package funkin.play;
 import flixel.FlxG;
 import flixel.FlxObject;
 import flixel.FlxSprite;
-import flixel.system.FlxSound;
+import flixel.sound.FlxSound;
 import funkin.ui.story.StoryMenuState;
 import flixel.util.FlxColor;
 import flixel.util.FlxTimer;
@@ -245,7 +245,7 @@ class GameOverSubState extends MusicBeatSubState
     }
   }
 
-  override function dispatchEvent(event:ScriptEvent)
+  public override function dispatchEvent(event:ScriptEvent)
   {
     super.dispatchEvent(event);
 

source/funkin/play/PlayState.hx

@@ -1,7 +1,5 @@
 package funkin.play;
 
-import flixel.sound.FlxSound;
-import funkin.ui.story.StoryMenuState;
 import flixel.addons.display.FlxPieDial;
 import flixel.addons.transition.FlxTransitionableState;
 import flixel.FlxCamera;
@@ -14,6 +12,7 @@ import flixel.input.keyboard.FlxKey;
 import flixel.math.FlxMath;
 import flixel.math.FlxPoint;
 import flixel.math.FlxRect;
+import flixel.sound.FlxSound;
 import flixel.text.FlxText;
 import flixel.tweens.FlxEase;
 import flixel.tweens.FlxTween;
@@ -28,6 +27,8 @@ import funkin.modding.events.ScriptEventDispatcher;
 import funkin.Note;
 import funkin.play.character.BaseCharacter;
 import funkin.play.character.CharacterData.CharacterDataParser;
+import funkin.play.cutscene.dialogue.Conversation;
+import funkin.play.cutscene.dialogue.ConversationDataParser;
 import funkin.play.cutscene.VanillaCutscenes;
 import funkin.play.cutscene.VideoCutscene;
 import funkin.play.event.SongEventData.SongEventParser;
@@ -45,6 +46,7 @@ import funkin.play.Strumline.StrumlineStyle;
 import funkin.ui.PopUpStuff;
 import funkin.ui.PreferencesMenu;
 import funkin.ui.stageBuildShit.StageOffsetSubState;
+import funkin.ui.story.StoryMenuState;
 import funkin.util.Constants;
 import funkin.util.SerializerUtil;
 import funkin.util.SortUtil;
@@ -222,6 +224,11 @@ class PlayState extends MusicBeatState
    */
   public var disableKeys:Bool = false;
 
+  /**
+   * The current dialogue.
+   */
+  public var currentConversation:Conversation;
+
   /**
    * PRIVATE INSTANCE VARIABLES
    * Private instance variables should be used for information that must be reset or dereferenced
@@ -887,7 +894,7 @@ class PlayState extends MusicBeatState
       trace('Song difficulty could not be loaded.');
     }
 
-    Conductor.forceBPM(currentChart.getStartingBPM());
+    // Conductor.forceBPM(currentChart.getStartingBPM());
 
     vocals = currentChart.buildVocals(currentPlayerId);
     if (vocals.members.length == 0)
@@ -1201,13 +1208,10 @@ class PlayState extends MusicBeatState
       camHUD.zoom = FlxMath.lerp(defaultHUDCameraZoom, camHUD.zoom, 0.95);
     }
 
-    FlxG.watch.addQuick('beatShit', Conductor.currentBeat);
-    FlxG.watch.addQuick('stepShit', Conductor.currentStep);
     if (currentStage != null)
     {
       FlxG.watch.addQuick('bfAnim', currentStage.getBoyfriend().getCurrentAnimation());
     }
-    FlxG.watch.addQuick('songPos', Conductor.songPosition);
 
     // Handle GF dance speed.
     // TODO: Add a song event for this.
@@ -1425,6 +1429,7 @@ class PlayState extends MusicBeatState
     // Handle keybinds.
     if (!isInCutscene && !disableKeys) keyShit(true);
     if (!isInCutscene && !disableKeys) debugKeyShit();
+    if (isInCutscene && !disableKeys) handleCutsceneKeys(elapsed);
 
     // Dispatch the onUpdate event to scripted elements.
     dispatchEvent(new UpdateScriptEvent(elapsed));
@@ -1432,6 +1437,36 @@ class PlayState extends MusicBeatState
 
   static final CUTSCENE_KEYS:Array<FlxKey> = [SPACE, ESCAPE, ENTER];
 
+  function handleCutsceneKeys(elapsed:Float):Void
+  {
+    if (currentConversation != null)
+    {
+      if (controls.CUTSCENE_ADVANCE) currentConversation?.advanceConversation();
+
+      if (controls.CUTSCENE_SKIP)
+      {
+        currentConversation?.trySkipConversation(elapsed);
+      }
+      else
+      {
+        currentConversation?.trySkipConversation(-1);
+      }
+    }
+    else if (VideoCutscene.isPlaying())
+    {
+      // This is a video cutscene.
+
+      if (controls.CUTSCENE_SKIP)
+      {
+        trySkipVideoCutscene(elapsed);
+      }
+      else
+      {
+        trySkipVideoCutscene(-1);
+      }
+    }
+  }
+
   public function trySkipVideoCutscene(elapsed:Float):Void
   {
     if (skipTimer == null || skipTimer.animation == null) return;
@@ -2369,9 +2404,9 @@ class PlayState extends MusicBeatState
     camHUD.visible = true;
   }
 
-  override function dispatchEvent(event:ScriptEvent):Void
+  public override function dispatchEvent(event:ScriptEvent):Void
   {
-    // ORDER: Module, Stage, Character, Song, Note
+    // ORDER: Module, Stage, Character, Song, Conversation, Note
     // Modules should get the first chance to cancel the event.
 
     // super.dispatchEvent(event) dispatches event to module scripts.
@@ -2383,11 +2418,55 @@ class PlayState extends MusicBeatState
     // Dispatch event to character script(s).
     if (currentStage != null) currentStage.dispatchToCharacters(event);
 
+    // Dispatch event to song script.
     ScriptEventDispatcher.callEvent(currentSong, event);
 
+    // Dispatch event to conversation script.
+    ScriptEventDispatcher.callEvent(currentConversation, event);
+
     // TODO: Dispatch event to note scripts
   }
 
+  public function startConversation(conversationId:String):Void
+  {
+    isInCutscene = true;
+
+    currentConversation = ConversationDataParser.fetchConversation(conversationId);
+    if (currentConversation == null) return;
+
+    currentConversation.completeCallback = onConversationComplete;
+    currentConversation.cameras = [camCutscene];
+    currentConversation.zIndex = 1000;
+    add(currentConversation);
+    refresh();
+
+    var event:ScriptEvent = new ScriptEvent(ScriptEvent.CREATE, false);
+    ScriptEventDispatcher.callEvent(currentConversation, event);
+  }
+
+  function onConversationComplete():Void
+  {
+    isInCutscene = true;
+    remove(currentConversation);
+    currentConversation = null;
+
+    if (startingSong && !isInCountdown)
+    {
+      startCountdown();
+    }
+  }
+
+  override function destroy():Void
+  {
+    if (currentConversation != null)
+    {
+      remove(currentConversation);
+      currentConversation.kill();
+    }
+
+    super.destroy();
+  }
+
   /**
    * Updates the position and contents of the score display.
    */

source/funkin/play/character/SparrowCharacter.hx

@@ -44,10 +44,12 @@ class SparrowCharacter extends BaseCharacter
 
     if (_data.isPixel)
     {
+      this.isPixel = true;
       this.antialiasing = false;
     }
     else
     {
+      this.isPixel = false;
       this.antialiasing = true;
     }
 

source/funkin/play/cutscene/VideoCutscene.hx

@@ -30,7 +30,8 @@ class VideoCutscene
 
     if (!openfl.Assets.exists(filePath))
     {
-      trace('ERROR: Video file does not exist: ${filePath}');
+      // Display a popup.
+      lime.app.Application.current.window.alert('Video file does not exist: ${filePath}', 'Error playing video');
       return;
     }
 

source/funkin/play/cutscene/dialogue/Conversation.hx

@@ -0,0 +1,617 @@
+package funkin.play.cutscene.dialogue;
+
+import flixel.FlxSprite;
+import flixel.group.FlxSpriteGroup;
+import flixel.util.FlxColor;
+import flixel.tweens.FlxTween;
+import flixel.tweens.FlxEase;
+import flixel.system.FlxSound;
+import funkin.util.SortUtil;
+import flixel.util.FlxSort;
+import funkin.modding.events.ScriptEvent;
+import funkin.modding.IScriptedClass.IEventHandler;
+import funkin.play.cutscene.dialogue.DialogueBox;
+import funkin.modding.IScriptedClass.IDialogueScriptedClass;
+import funkin.modding.events.ScriptEventDispatcher;
+import funkin.play.cutscene.dialogue.ConversationData.DialogueEntryData;
+import flixel.addons.display.FlxPieDial;
+
+/**
+ * A high-level handler for dialogue.
+ * 
+ * This shit is great for modders but it's pretty elaborate for how much it'll actually be used, lolol. -Eric
+ */
+class Conversation extends FlxSpriteGroup implements IDialogueScriptedClass
+{
+  static final CONVERSATION_SKIP_TIMER:Float = 1.5;
+
+  var skipHeldTimer:Float = 0.0;
+
+  /**
+   * DATA
+   */
+  /**
+   * The ID of the associated dialogue.
+   */
+  public final conversationId:String;
+
+  /**
+   * The current state of the conversation.
+   */
+  var state:ConversationState = ConversationState.Start;
+
+  /**
+   * The data for the associated dialogue.
+   */
+  var conversationData:ConversationData;
+
+  /**
+   * The current entry in the dialogue.
+   */
+  var currentDialogueEntry:Int = 0;
+
+  var currentDialogueEntryCount(get, null):Int;
+
+  function get_currentDialogueEntryCount():Int
+  {
+    return conversationData.dialogue.length;
+  }
+
+  /**
+   * The current line in the current entry in the dialogue.
+  * **/
+  var currentDialogueLine:Int = 0;
+
+  var currentDialogueLineCount(get, null):Int;
+
+  function get_currentDialogueLineCount():Int
+  {
+    return currentDialogueEntryData.text.length;
+  }
+
+  var currentDialogueEntryData(get, null):DialogueEntryData;
+
+  function get_currentDialogueEntryData():DialogueEntryData
+  {
+    if (conversationData == null || conversationData.dialogue == null) return null;
+    if (currentDialogueEntry < 0 || currentDialogueEntry >= conversationData.dialogue.length) return null;
+
+    return conversationData.dialogue[currentDialogueEntry];
+  }
+
+  var currentDialogueLineString(get, null):String;
+
+  function get_currentDialogueLineString():String
+  {
+    return currentDialogueEntryData?.text[currentDialogueLine];
+  }
+
+  /**
+   * AUDIO
+   */
+  var music:FlxSound;
+
+  /**
+   * GRAPHICS
+   */
+  var backdrop:FlxSprite;
+
+  var currentSpeaker:Speaker;
+
+  var currentDialogueBox:DialogueBox;
+
+  var skipTimer:FlxPieDial;
+
+  public function new(conversationId:String)
+  {
+    super();
+
+    this.conversationId = conversationId;
+    this.conversationData = ConversationDataParser.parseConversationData(this.conversationId);
+
+    if (conversationData == null) throw 'Could not load conversation data for conversation ID "$conversationId"';
+  }
+
+  public function onCreate(event:ScriptEvent):Void
+  {
+    // Reset the progress in the dialogue.
+    currentDialogueEntry = 0;
+    this.state = ConversationState.Start;
+    this.alpha = 1.0;
+
+    // Start the dialogue.
+    dispatchEvent(new DialogueScriptEvent(ScriptEvent.DIALOGUE_START, this, false));
+  }
+
+  function setupMusic():Void
+  {
+    if (conversationData.music == null) return;
+
+    music = new FlxSound().loadEmbedded(Paths.music(conversationData.music.asset), true, true);
+    music.volume = 0;
+
+    if (conversationData.music.fadeTime > 0.0)
+    {
+      FlxTween.tween(music, {volume: 1.0}, conversationData.music.fadeTime, {ease: FlxEase.linear});
+    }
+    else
+    {
+      music.volume = 1.0;
+    }
+
+    FlxG.sound.list.add(music);
+    music.play();
+  }
+
+  function setupBackdrop():Void
+  {
+    backdrop = new FlxSprite(0, 0);
+
+    if (conversationData.backdrop == null) return;
+
+    // Play intro
+    switch (conversationData?.backdrop.type)
+    {
+      case SOLID:
+        backdrop.makeGraphic(Std.int(FlxG.width), Std.int(FlxG.height), FlxColor.fromString(conversationData.backdrop.data.color));
+        if (conversationData.backdrop.data.fadeTime > 0.0)
+        {
+          backdrop.alpha = 0.0;
+          FlxTween.tween(backdrop, {alpha: 1.0}, conversationData.backdrop.data.fadeTime, {ease: FlxEase.linear});
+        }
+        else
+        {
+          backdrop.alpha = 1.0;
+        }
+      default:
+        return;
+    }
+
+    backdrop.zIndex = 10;
+    add(backdrop);
+    refresh();
+  }
+
+  function setupSkipTimer():Void
+  {
+    add(skipTimer = new FlxPieDial(16, 16, 32, FlxColor.WHITE, 36, CIRCLE, true, 24));
+    skipTimer.amount = 0;
+  }
+
+  public override function update(elapsed:Float):Void
+  {
+    super.update(elapsed);
+
+    dispatchEvent(new UpdateScriptEvent(elapsed));
+  }
+
+  function showCurrentSpeaker():Void
+  {
+    var nextSpeakerId:String = currentDialogueEntryData.speaker;
+
+    // Skip the next steps if the current speaker is already displayed.
+    if (currentSpeaker != null && nextSpeakerId == currentSpeaker.speakerId) return;
+
+    var nextSpeaker:Speaker = SpeakerDataParser.fetchSpeaker(nextSpeakerId);
+
+    if (currentSpeaker != null)
+    {
+      remove(currentSpeaker);
+      currentSpeaker.kill(); // Kill, don't destroy! We want to revive it later.
+      currentSpeaker = null;
+    }
+
+    if (nextSpeaker == null)
+    {
+      if (nextSpeakerId == null)
+      {
+        trace('Dialogue entry has no speaker.');
+      }
+      else
+      {
+        trace('Speaker could not be retrieved.');
+      }
+      return;
+    }
+
+    ScriptEventDispatcher.callEvent(nextSpeaker, new ScriptEvent(ScriptEvent.CREATE, true));
+
+    currentSpeaker = nextSpeaker;
+    currentSpeaker.zIndex = 200;
+    add(currentSpeaker);
+    refresh();
+  }
+
+  function playSpeakerAnimation():Void
+  {
+    var nextSpeakerAnimation:String = currentDialogueEntryData.speakerAnimation;
+
+    if (nextSpeakerAnimation == null) return;
+
+    currentSpeaker.playAnimation(nextSpeakerAnimation);
+  }
+
+  public function refresh():Void
+  {
+    sort(SortUtil.byZIndex, FlxSort.ASCENDING);
+  }
+
+  function showCurrentDialogueBox():Void
+  {
+    var nextDialogueBoxId:String = currentDialogueEntryData?.box;
+
+    // Skip the next steps if the current speaker is already displayed.
+    if (currentDialogueBox != null && nextDialogueBoxId == currentDialogueBox.dialogueBoxId) return;
+
+    if (currentDialogueBox != null)
+    {
+      remove(currentDialogueBox);
+      currentDialogueBox.kill(); // Kill, don't destroy! We want to revive it later.
+      currentDialogueBox = null;
+    }
+
+    var nextDialogueBox:DialogueBox = DialogueBoxDataParser.fetchDialogueBox(nextDialogueBoxId);
+
+    if (nextDialogueBox == null)
+    {
+      trace('Dialogue box could not be retrieved.');
+      return;
+    }
+
+    ScriptEventDispatcher.callEvent(nextDialogueBox, new ScriptEvent(ScriptEvent.CREATE, true));
+
+    currentDialogueBox = nextDialogueBox;
+    currentDialogueBox.zIndex = 300;
+
+    currentDialogueBox.typingCompleteCallback = this.onTypingComplete;
+
+    add(currentDialogueBox);
+    refresh();
+  }
+
+  function playDialogueBoxAnimation():Void
+  {
+    var nextDialogueBoxAnimation:String = currentDialogueEntryData?.boxAnimation;
+
+    if (nextDialogueBoxAnimation == null) return;
+
+    currentDialogueBox.playAnimation(nextDialogueBoxAnimation);
+  }
+
+  function onTypingComplete():Void
+  {
+    if (this.state == ConversationState.Speaking)
+    {
+      this.state = ConversationState.Idle;
+    }
+    else
+    {
+      trace('[WARNING] Unexpected state transition from ${this.state}');
+      this.state = ConversationState.Idle;
+    }
+  }
+
+  public function startConversation():Void
+  {
+    dispatchEvent(new DialogueScriptEvent(ScriptEvent.DIALOGUE_START, this, true));
+  }
+
+  /**
+   * Dispatch an event to attempt to advance the conversation.
+   * This is done once at the start of the conversation, and once whenever the user presses CONFIRM to advance the conversation.
+   * 
+   * The broadcast event may be cancelled by modules or ScriptedConversations. This will prevent the conversation from actually advancing.
+   * This is useful if you want to manually play an animation or something.
+   */
+  public function advanceConversation():Void
+  {
+    switch (state)
+    {
+      case ConversationState.Start:
+        dispatchEvent(new DialogueScriptEvent(ScriptEvent.DIALOGUE_START, this, true));
+      case ConversationState.Opening:
+        dispatchEvent(new DialogueScriptEvent(ScriptEvent.DIALOGUE_COMPLETE_LINE, this, true));
+      case ConversationState.Speaking:
+        dispatchEvent(new DialogueScriptEvent(ScriptEvent.DIALOGUE_COMPLETE_LINE, this, true));
+      case ConversationState.Idle:
+        dispatchEvent(new DialogueScriptEvent(ScriptEvent.DIALOGUE_LINE, this, true));
+      case ConversationState.Ending:
+        // Skip the outro.
+        endOutro();
+      default:
+        // Do nothing.
+    }
+  }
+
+  public function dispatchEvent(event:ScriptEvent):Void
+  {
+    var currentState:IEventHandler = cast FlxG.state;
+    currentState.dispatchEvent(event);
+  }
+
+  /**
+   * Reset the conversation back to the start.
+   */
+  public function resetConversation():Void
+  {
+    // Reset the progress in the dialogue.
+    currentDialogueEntry = 0;
+    this.state = ConversationState.Start;
+
+    advanceConversation();
+  }
+
+  public function trySkipConversation(elapsed:Float):Void
+  {
+    if (skipTimer == null || skipTimer.animation == null) return;
+
+    if (elapsed < 0)
+    {
+      skipHeldTimer = 0.0;
+    }
+    else
+    {
+      skipHeldTimer += elapsed;
+    }
+
+    skipTimer.visible = skipHeldTimer >= 0.05;
+    skipTimer.amount = Math.min(skipHeldTimer / CONVERSATION_SKIP_TIMER, 1.0);
+
+    if (skipHeldTimer >= CONVERSATION_SKIP_TIMER)
+    {
+      skipConversation();
+    }
+  }
+
+  /**
+   * Dispatch an event to attempt to immediately end the conversation.
+   * 
+   * The broadcast event may be cancelled by modules or ScriptedConversations. This will prevent the conversation from being cancelled.
+   * This is useful if you want to prevent an animation from being skipped or something.
+   */
+  public function skipConversation():Void
+  {
+    dispatchEvent(new DialogueScriptEvent(ScriptEvent.DIALOGUE_SKIP, this, true));
+  }
+
+  static var outroTween:FlxTween;
+
+  public function startOutro():Void
+  {
+    switch (conversationData?.outro?.type)
+    {
+      case FADE:
+        var fadeTime:Float = conversationData?.outro.data.fadeTime ?? 1.0;
+
+        outroTween = FlxTween.tween(this, {alpha: 0.0}, fadeTime,
+          {
+            type: ONESHOT, // holy shit like the game no way
+            startDelay: 0,
+            onComplete: (_) -> endOutro(),
+          });
+
+        FlxTween.tween(this.music, {volume: 0.0}, fadeTime);
+      case NONE:
+        // Immediately clean up.
+        endOutro();
+      default:
+        // Immediately clean up.
+        endOutro();
+    }
+  }
+
+  public var completeCallback:Void->Void;
+
+  public function endOutro():Void
+  {
+    outroTween = null;
+    ScriptEventDispatcher.callEvent(this, new ScriptEvent(ScriptEvent.DESTROY, false));
+  }
+
+  /**
+   * Performed as the conversation starts.
+   */
+  public function onDialogueStart(event:DialogueScriptEvent):Void
+  {
+    propagateEvent(event);
+
+    // Fade in the music and backdrop.
+    setupMusic();
+    setupBackdrop();
+    setupSkipTimer();
+
+    // Advance the conversation.
+    state = ConversationState.Opening;
+
+    showCurrentDialogueBox();
+    playDialogueBoxAnimation();
+  }
+
+  /**
+   * Display the next line of conversation.
+   */
+  public function onDialogueLine(event:DialogueScriptEvent):Void
+  {
+    propagateEvent(event);
+    if (event.eventCanceled) return;
+
+    // Perform the actual logic to advance the conversation.
+    currentDialogueLine += 1;
+    if (currentDialogueLine >= currentDialogueLineCount)
+    {
+      // Open the next entry.
+      currentDialogueLine = 0;
+      currentDialogueEntry += 1;
+
+      if (currentDialogueEntry >= currentDialogueEntryCount)
+      {
+        dispatchEvent(new DialogueScriptEvent(ScriptEvent.DIALOGUE_END, this, false));
+      }
+      else
+      {
+        if (state == Idle)
+        {
+          showCurrentDialogueBox();
+          playDialogueBoxAnimation();
+
+          state = Opening;
+        }
+      }
+    }
+    else
+    {
+      // Continue the dialog with more lines.
+      state = Speaking;
+      currentDialogueBox.appendText(currentDialogueLineString);
+    }
+  }
+
+  /**
+   * Skip the scrolling of the next line of conversation.
+   */
+  public function onDialogueCompleteLine(event:DialogueScriptEvent):Void
+  {
+    propagateEvent(event);
+    if (event.eventCanceled) return;
+
+    currentDialogueBox.skip();
+  }
+
+  /**
+   * Skip to the end of the conversation, immediately triggering the DIALOGUE_END event.
+   */
+  public function onDialogueSkip(event:DialogueScriptEvent):Void
+  {
+    propagateEvent(event);
+    if (event.eventCanceled) return;
+
+    dispatchEvent(new DialogueScriptEvent(ScriptEvent.DIALOGUE_END, this, false));
+  }
+
+  public function onDialogueEnd(event:DialogueScriptEvent):Void
+  {
+    propagateEvent(event);
+
+    state = Ending;
+  }
+
+  // Only used for events/scripts.
+
+  public function onUpdate(event:UpdateScriptEvent):Void
+  {
+    propagateEvent(event);
+
+    if (event.eventCanceled) return;
+
+    switch (state)
+    {
+      case ConversationState.Start:
+        // Wait for advance() to be called and DIALOGUE_LINE to be dispatched.
+        return;
+      case ConversationState.Opening:
+        // Backdrop animation should have started.
+        // Box animations should have started.
+        if (currentDialogueBox != null
+          && (currentDialogueBox.isAnimationFinished()
+            || currentDialogueBox.getCurrentAnimation() != currentDialogueEntryData?.boxAnimation))
+        {
+          // Box animations have finished.
+
+          // Start playing the speaker animation.
+          state = ConversationState.Speaking;
+          showCurrentSpeaker();
+          playSpeakerAnimation();
+          currentDialogueBox.setText(currentDialogueLineString);
+        }
+        return;
+      case ConversationState.Speaking:
+        // Speaker animation should be playing.
+        return;
+      case ConversationState.Idle:
+        // Waiting for user input via `advanceConversation()`.
+        return;
+      case ConversationState.Ending:
+        if (outroTween == null) startOutro();
+        return;
+    }
+  }
+
+  public function onDestroy(event:ScriptEvent):Void
+  {
+    propagateEvent(event);
+
+    if (outroTween != null) outroTween.cancel(); // Canc
+    outroTween = null;
+
+    this.alpha = 0.0;
+    if (this.music != null) this.music.stop();
+    this.music = null;
+
+    this.skipTimer = null;
+    if (currentSpeaker != null) currentSpeaker.kill();
+    currentSpeaker = null;
+    if (currentDialogueBox != null) currentDialogueBox.kill();
+    currentDialogueBox = null;
+    if (backdrop != null) backdrop.kill();
+    backdrop = null;
+
+    this.clear();
+
+    if (completeCallback != null) completeCallback();
+  }
+
+  public function onScriptEvent(event:ScriptEvent):Void
+  {
+    propagateEvent(event);
+  }
+
+  /**
+   * As this event is dispatched to the Conversation, it is also dispatched to the active speaker.
+   * @param event 
+   */
+  function propagateEvent(event:ScriptEvent):Void
+  {
+    if (this.currentDialogueBox != null)
+    {
+      ScriptEventDispatcher.callEvent(this.currentDialogueBox, event);
+    }
+    if (this.currentSpeaker != null)
+    {
+      ScriptEventDispatcher.callEvent(this.currentSpeaker, event);
+    }
+  }
+
+  public override function toString():String
+  {
+    return 'Conversation($conversationId)';
+  }
+}
+
+// Managing things with a single enum is a lot easier than a multitude of flags.
+enum ConversationState
+{
+  /**
+   * State hasn't been initialized yet.
+   */
+  Start;
+
+  /**
+   * A dialog is animating. If the dialog is static, this may only last for one frame.
+   */
+  Opening;
+
+  /**
+   * Text is scrolling and audio is playing. Speaker portrait is probably animating too.
+   */
+  Speaking;
+
+  /**
+   * Text is done scrolling and game is waiting for user to open another dialog.
+   */
+  Idle;
+
+  /**
+   * Fade out and leave conversation.
+   */
+  Ending;
+}

source/funkin/play/cutscene/dialogue/ConversationData.hx

@@ -0,0 +1,236 @@
+package funkin.play.cutscene.dialogue;
+
+import funkin.util.SerializerUtil;
+
+/**
+ * Data about a conversation.
+ * Includes what speakers are in the conversation, and what phrases they say.
+ */
+@:jsonParse(j -> funkin.play.cutscene.dialogue.ConversationData.fromJson(j))
+@:jsonStringify(v -> v.toJson())
+class ConversationData
+{
+  public var version:String;
+  public var backdrop:BackdropData;
+  public var outro:OutroData;
+  public var music:MusicData;
+  public var dialogue:Array<DialogueEntryData>;
+
+  public function new(version:String, backdrop:BackdropData, outro:OutroData, music:MusicData, dialogue:Array<DialogueEntryData>)
+  {
+    this.version = version;
+    this.backdrop = backdrop;
+    this.outro = outro;
+    this.music = music;
+    this.dialogue = dialogue;
+  }
+
+  public static function fromString(i:String):ConversationData
+  {
+    if (i == null || i == '') return null;
+    var data:
+      {
+        version:String,
+        backdrop:Dynamic, // TODO: tink.Json doesn't like when these are typed
+        ?outro:Dynamic, // TODO: tink.Json doesn't like when these are typed
+        ?music:Dynamic, // TODO: tink.Json doesn't like when these are typed
+        dialogue:Array<Dynamic> // TODO: tink.Json doesn't like when these are typed
+      } = tink.Json.parse(i);
+    return fromJson(data);
+  }
+
+  public static function fromJson(j:Dynamic):ConversationData
+  {
+    // TODO: Check version and perform migrations if necessary.
+    if (j == null) return null;
+    return new ConversationData(j.version, BackdropData.fromJson(j.backdrop), OutroData.fromJson(j.outro), MusicData.fromJson(j.music),
+      j.dialogue.map(d -> DialogueEntryData.fromJson(d)));
+  }
+
+  public function toJson():Dynamic
+  {
+    return {
+      version: this.version,
+      backdrop: this.backdrop.toJson(),
+      dialogue: this.dialogue.map(d -> d.toJson())
+    };
+  }
+}
+
+/**
+ * Data about a single dialogue entry.
+ */
+@:jsonParse(j -> funkin.play.cutscene.dialogue.ConversationData.DialogueEntryData.fromJson(j))
+@:jsonStringify(v -> v.toJson())
+class DialogueEntryData
+{
+  /**
+   * The speaker who says this phrase.
+   */
+  public var speaker:String;
+
+  /**
+   * The animation the speaker will play.
+   */
+  public var speakerAnimation:String;
+
+  /**
+   * The text box that will appear.
+   */
+  public var box:String;
+
+  /**
+   * The animation the dialogue box will play.
+   */
+  public var boxAnimation:String;
+
+  /**
+   * The lines of text that will appear in the text box.
+   */
+  public var text:Array<String>;
+
+  /**
+   * The relative speed at which the text will scroll.
+   * @default 1.0
+   */
+  public var speed:Float = 1.0;
+
+  public function new(speaker:String, speakerAnimation:String, box:String, boxAnimation:String, text:Array<String>, speed:Float = null)
+  {
+    this.speaker = speaker;
+    this.speakerAnimation = speakerAnimation;
+    this.box = box;
+    this.boxAnimation = boxAnimation;
+    this.text = text;
+    if (speed != null) this.speed = speed;
+  }
+
+  public static function fromJson(j:Dynamic):DialogueEntryData
+  {
+    if (j == null) return null;
+    return new DialogueEntryData(j.speaker, j.speakerAnimation, j.box, j.boxAnimation, j.text, j.speed);
+  }
+
+  public function toJson():Dynamic
+  {
+    var result:Dynamic =
+      {
+        speaker: this.speaker,
+        speakerAnimation: this.speakerAnimation,
+        box: this.box,
+        boxAnimation: this.boxAnimation,
+        text: this.text,
+      };
+
+    if (this.speed != 1.0) result.speed = this.speed;
+
+    return result;
+  }
+}
+
+/**
+ * Data about a backdrop.
+ */
+@:jsonParse(j -> funkin.play.cutscene.dialogue.ConversationData.BackdropData.fromJson(j))
+@:jsonStringify(v -> v.toJson())
+class BackdropData
+{
+  public var type:BackdropType;
+  public var data:Dynamic;
+
+  public function new(typeStr:String, data:Dynamic)
+  {
+    this.type = typeStr;
+    this.data = data;
+  }
+
+  public static function fromJson(j:Dynamic):BackdropData
+  {
+    if (j == null) return null;
+    return new BackdropData(j.type, j.data);
+  }
+
+  public function toJson():Dynamic
+  {
+    return {
+      type: this.type,
+      data: this.data
+    };
+  }
+}
+
+enum abstract BackdropType(String) from String to String
+{
+  public var SOLID:BackdropType = 'solid';
+}
+
+/**
+ * Data about a music track.
+ */
+@:jsonParse(j -> funkin.play.cutscene.dialogue.ConversationData.MusicData.fromJson(j))
+@:jsonStringify(v -> v.toJson())
+class MusicData
+{
+  public var asset:String;
+  public var looped:Bool;
+  public var fadeTime:Float;
+
+  public function new(asset:String, looped:Bool, fadeTime:Float = 0.0)
+  {
+    this.asset = asset;
+    this.looped = looped;
+    this.fadeTime = fadeTime;
+  }
+
+  public static function fromJson(j:Dynamic):MusicData
+  {
+    if (j == null) return null;
+    return new MusicData(j.asset, j.looped, j.fadeTime);
+  }
+
+  public function toJson():Dynamic
+  {
+    return {
+      asset: this.asset,
+      looped: this.looped,
+      fadeTime: this.fadeTime
+    };
+  }
+}
+
+/**
+ * Data about an outro.
+ */
+@:jsonParse(j -> funkin.play.cutscene.dialogue.ConversationData.OutroData.fromJson(j))
+@:jsonStringify(v -> v.toJson())
+class OutroData
+{
+  public var type:OutroType;
+  public var data:Dynamic;
+
+  public function new(typeStr:Null<String>, data:Dynamic)
+  {
+    this.type = typeStr ?? OutroType.NONE;
+    this.data = data;
+  }
+
+  public static function fromJson(j:Dynamic):OutroData
+  {
+    if (j == null) return null;
+    return new OutroData(j.type, j.data);
+  }
+
+  public function toJson():Dynamic
+  {
+    return {
+      type: this.type,
+      data: this.data
+    };
+  }
+}
+
+enum abstract OutroType(String) from String to String
+{
+  public var NONE:OutroType = 'none';
+  public var FADE:OutroType = 'fade';
+}

source/funkin/play/cutscene/dialogue/ConversationDataParser.hx

@@ -0,0 +1,162 @@
+package funkin.play.cutscene.dialogue;
+
+import openfl.Assets;
+import funkin.util.assets.DataAssets;
+import funkin.play.cutscene.dialogue.ScriptedConversation;
+
+/**
+ * Contains utilities for loading and parsing conversation data.
+ */
+class ConversationDataParser
+{
+  public static final CONVERSATION_DATA_VERSION:String = '1.0.0';
+  public static final CONVERSATION_DATA_VERSION_RULE:String = '1.0.x';
+
+  static final conversationCache:Map<String, Conversation> = new Map<String, Conversation>();
+  static final conversationScriptedClass:Map<String, String> = new Map<String, String>();
+
+  static final DEFAULT_CONVERSATION_ID:String = 'UNKNOWN';
+
+  /**
+   * Parses and preloads the game's conversation data and scripts when the game starts.
+   *
+   * If you want to force conversations to be reloaded, you can just call this function again.
+   */
+  public static function loadConversationCache():Void
+  {
+    clearConversationCache();
+    trace('Loading dialogue conversation cache...');
+
+    //
+    // SCRIPTED CONVERSATIONS
+    //
+    var scriptedConversationClassNames:Array<String> = ScriptedConversation.listScriptClasses();
+    trace('  Instantiating ${scriptedConversationClassNames.length} scripted conversations...');
+    for (conversationCls in scriptedConversationClassNames)
+    {
+      var conversation:Conversation = ScriptedConversation.init(conversationCls, DEFAULT_CONVERSATION_ID);
+      if (conversation != null)
+      {
+        trace('    Loaded scripted conversation: ${conversationCls}');
+        // Disable the rendering logic for conversation until it's loaded.
+        // Note that kill() =/= destroy()
+        conversation.kill();
+
+        // Then store it.
+        conversationCache.set(conversation.conversationId, conversation);
+      }
+      else
+      {
+        trace('    Failed to instantiate scripted conversation class: ${conversationCls}');
+      }
+    }
+
+    //
+    // UNSCRIPTED CONVERSATIONS
+    //
+    // Scripts refers to code here, not the actual dialogue.
+    var conversationIdList:Array<String> = DataAssets.listDataFilesInPath('dialogue/conversations/');
+    // Filter out conversations that are scripted.
+    var unscriptedConversationIds:Array<String> = conversationIdList.filter(function(conversationId:String):Bool {
+      return !conversationCache.exists(conversationId);
+    });
+    trace('  Fetching data for ${unscriptedConversationIds.length} conversations...');
+    for (conversationId in unscriptedConversationIds)
+    {
+      try
+      {
+        var conversation:Conversation = new Conversation(conversationId);
+        // Say something offensive to kill the conversation.
+        // We will revive it later.
+        conversation.kill();
+        if (conversation != null)
+        {
+          trace('    Loaded conversation data: ${conversation.conversationId}');
+          conversationCache.set(conversation.conversationId, conversation);
+        }
+      }
+      catch (e)
+      {
+        trace(e);
+        continue;
+      }
+    }
+  }
+
+  /**
+   * Fetches data for a conversation and returns a Conversation instance,
+   * ready to be displayed.
+   * @param conversationId The ID of the conversation to fetch.
+   * @return The conversation instance, or null if the conversation was not found.
+   */
+  public static function fetchConversation(conversationId:String):Null<Conversation>
+  {
+    if (conversationId != null && conversationId != '' && conversationCache.exists(conversationId))
+    {
+      trace('Successfully fetched conversation: ${conversationId}');
+      var conversation:Conversation = conversationCache.get(conversationId);
+      // ...ANYway...
+      conversation.revive();
+      return conversation;
+    }
+    else
+    {
+      trace('Failed to fetch conversation, not found in cache: ${conversationId}');
+      return null;
+    }
+  }
+
+  static function clearConversationCache():Void
+  {
+    if (conversationCache != null)
+    {
+      for (conversation in conversationCache)
+      {
+        conversation.destroy();
+      }
+      conversationCache.clear();
+    }
+  }
+
+  public static function listConversationIds():Array<String>
+  {
+    return conversationCache.keys().array();
+  }
+
+  /**
+   * Load a conversation's JSON file, parse its data, and return it.
+   *
+   * @param conversationId The conversation to load.
+   * @return The conversation data, or null if validation failed.
+   */
+  public static function parseConversationData(conversationId:String):Null<ConversationData>
+  {
+    trace('Parsing conversation data: ${conversationId}');
+    var rawJson:String = loadConversationFile(conversationId);
+
+    try
+    {
+      var conversationData:ConversationData = ConversationData.fromString(rawJson);
+      return conversationData;
+    }
+    catch (e)
+    {
+      trace('Failed to parse conversation ($conversationId).');
+      trace(e);
+      return null;
+    }
+  }
+
+  static function loadConversationFile(conversationPath:String):String
+  {
+    var conversationFilePath:String = Paths.json('dialogue/conversations/${conversationPath}');
+    var rawJson:String = Assets.getText(conversationFilePath).trim();
+
+    while (!rawJson.endsWith('}') && rawJson.length > 0)
+    {
+      rawJson = rawJson.substr(0, rawJson.length - 1);
+    }
+
+    return rawJson;
+  }
+}

source/funkin/play/cutscene/dialogue/ConversationDebugState.hx

@@ -0,0 +1,61 @@
+package funkin.play.cutscene.dialogue;
+
+import flixel.FlxState;
+import funkin.modding.events.ScriptEventDispatcher;
+import funkin.modding.events.ScriptEvent;
+import flixel.util.FlxColor;
+import funkin.Paths;
+
+/**
+ * A state with displays a conversation with no background.
+ * Used for testing.
+ * @param conversationId The conversation to display.
+ */
+class ConversationDebugState extends MusicBeatState
+{
+  final conversationId:String = 'senpai';
+
+  var conversation:Conversation;
+
+  public function new()
+  {
+    super();
+
+    // TODO: Fix this BS
+    Paths.setCurrentLevel('week6');
+  }
+
+  public override function create():Void
+  {
+    conversation = ConversationDataParser.fetchConversation(conversationId);
+    conversation.completeCallback = onConversationComplete;
+    add(conversation);
+
+    ScriptEventDispatcher.callEvent(conversation, new ScriptEvent(ScriptEvent.CREATE, false));
+  }
+
+  function onConversationComplete():Void
+  {
+    remove(conversation);
+    conversation = null;
+  }
+
+  public override function update(elapsed:Float):Void
+  {
+    super.update(elapsed);
+
+    if (conversation != null)
+    {
+      if (controls.CUTSCENE_ADVANCE) conversation.advanceConversation();
+
+      if (controls.CUTSCENE_SKIP)
+      {
+        conversation.trySkipConversation(elapsed);
+      }
+      else
+      {
+        conversation.trySkipConversation(-1);
+      }
+    }
+  }
+}

source/funkin/play/cutscene/dialogue/DialogueBox.hx

@@ -0,0 +1,377 @@
+package funkin.play.cutscene.dialogue;
+
+import flixel.FlxSprite;
+import flixel.group.FlxSpriteGroup;
+import flixel.graphics.frames.FlxFramesCollection;
+import flixel.text.FlxText;
+import flixel.addons.text.FlxTypeText;
+import funkin.util.assets.FlxAnimationUtil;
+import funkin.modding.events.ScriptEvent;
+import funkin.modding.IScriptedClass.IDialogueScriptedClass;
+import flixel.util.FlxColor;
+
+class DialogueBox extends FlxSpriteGroup implements IDialogueScriptedClass
+{
+  public final dialogueBoxId:String;
+  public var dialogueBoxName(get, null):String;
+
+  function get_dialogueBoxName():String
+  {
+    return boxData?.name ?? 'UNKNOWN';
+  }
+
+  var boxData:DialogueBoxData;
+
+  /**
+   * Offset the speaker's sprite by this much when playing each animation.
+   */
+  var animationOffsets:Map<String, Array<Float>> = new Map<String, Array<Float>>();
+
+  /**
+   * The current animation offset being used.
+   */
+  var animOffsets(default, set):Array<Float> = [0, 0];
+
+  function set_animOffsets(value:Array<Float>):Array<Float>
+  {
+    if (animOffsets == null) animOffsets = [0, 0];
+    if ((animOffsets[0] == value[0]) && (animOffsets[1] == value[1])) return value;
+
+    var xDiff:Float = value[0] - animOffsets[0];
+    var yDiff:Float = value[1] - animOffsets[1];
+
+    this.x += xDiff;
+    this.y += yDiff;
+
+    return animOffsets = value;
+  }
+
+  /**
+   * The offset of the speaker overall.
+   */
+  public var globalOffsets(default, set):Array<Float> = [0, 0];
+
+  function set_globalOffsets(value:Array<Float>):Array<Float>
+  {
+    if (globalOffsets == null) globalOffsets = [0, 0];
+    if (globalOffsets == value) return value;
+
+    var xDiff:Float = value[0] - globalOffsets[0];
+    var yDiff:Float = value[1] - globalOffsets[1];
+
+    this.x += xDiff;
+    this.y += yDiff;
+    return globalOffsets = value;
+  }
+
+  var boxSprite:FlxSprite;
+  var textDisplay:FlxTypeText;
+
+  var text(default, set):String;
+
+  function set_text(value:String):String
+  {
+    this.text = value;
+
+    textDisplay.resetText(this.text);
+    textDisplay.start();
+
+    return this.text;
+  }
+
+  public var speed(default, set):Float;
+
+  function set_speed(value:Float):Float
+  {
+    this.speed = value;
+    textDisplay.delay = this.speed * 0.05; // 1.0 x 0.05
+    return this.speed;
+  }
+
+  public function new(dialogueBoxId:String)
+  {
+    super();
+    this.dialogueBoxId = dialogueBoxId;
+    this.boxData = DialogueBoxDataParser.parseDialogueBoxData(this.dialogueBoxId);
+
+    if (boxData == null) throw 'Could not load dialogue box data for box ID "$dialogueBoxId"';
+  }
+
+  public function onCreate(event:ScriptEvent):Void
+  {
+    this.globalOffsets = [0, 0];
+    this.x = 0;
+    this.y = 0;
+    this.alpha = 1;
+
+    this.boxSprite = new FlxSprite(0, 0);
+    add(this.boxSprite);
+
+    loadSpritesheet();
+    loadAnimations();
+
+    loadText();
+  }
+
+  function loadSpritesheet():Void
+  {
+    trace('[DIALOGUE BOX] Loading spritesheet ${boxData.assetPath} for ${dialogueBoxId}');
+
+    var tex:FlxFramesCollection = Paths.getSparrowAtlas(boxData.assetPath);
+    if (tex == null)
+    {
+      trace('Could not load Sparrow sprite: ${boxData.assetPath}');
+      return;
+    }
+
+    this.boxSprite.frames = tex;
+
+    if (boxData.isPixel)
+    {
+      this.boxSprite.antialiasing = false;
+    }
+    else
+    {
+      this.boxSprite.antialiasing = true;
+    }
+
+    this.flipX = boxData.flipX;
+    this.globalOffsets = boxData.offsets;
+    this.setScale(boxData.scale);
+  }
+
+  public function setText(newText:String):Void
+  {
+    textDisplay.prefix = '';
+    textDisplay.resetText(newText);
+    textDisplay.start();
+  }
+
+  public function appendText(newText:String):Void
+  {
+    textDisplay.prefix = this.textDisplay.text;
+    textDisplay.resetText(newText);
+    textDisplay.start();
+  }
+
+  public function skip():Void
+  {
+    textDisplay.skip();
+  }
+
+  /**
+   * Reassign this to set a callback.
+   */
+  function onTypingComplete():Void
+  {
+    // No save navigation? :(
+    if (typingCompleteCallback != null) typingCompleteCallback();
+  }
+
+  public var typingCompleteCallback:() -> Void;
+
+  /**
+   * Set the sprite scale to the appropriate value.
+   * @param scale 
+   */
+  public function setScale(scale:Null<Float>):Void
+  {
+    if (scale == null) scale = 1.0;
+    this.boxSprite.scale.x = scale;
+    this.boxSprite.scale.y = scale;
+    this.boxSprite.updateHitbox();
+  }
+
+  function loadAnimations():Void
+  {
+    trace('[DIALOGUE BOX] Loading ${boxData.animations.length} animations for ${dialogueBoxId}');
+
+    FlxAnimationUtil.addAtlasAnimations(this.boxSprite, boxData.animations);
+
+    for (anim in boxData.animations)
+    {
+      if (anim.offsets == null)
+      {
+        setAnimationOffsets(anim.name, 0, 0);
+      }
+      else
+      {
+        setAnimationOffsets(anim.name, anim.offsets[0], anim.offsets[1]);
+      }
+    }
+
+    var animNames:Array<String> = this.boxSprite?.animation?.getNameList() ?? [];
+    trace('[DIALOGUE BOX] Successfully loaded ${animNames.length} animations for ${dialogueBoxId}');
+
+    boxSprite.animation.callback = this.onAnimationFrame;
+    boxSprite.animation.finishCallback = this.onAnimationFinished;
+  }
+
+  /**
+   * Called when an animation finishes.
+   * @param name The name of the animation that just finished.
+   */
+  function onAnimationFinished(name:String):Void {}
+
+  /**
+   * Called when the current animation's frame changes.
+   * @param name The name of the current animation.
+   * @param frameNumber The number of the current frame.
+   * @param frameIndex The index of the current frame.
+   * 
+   * For example, if an animation was defined as having the indexes [3, 0, 1, 2],
+   * then the first callback would have frameNumber = 0 and frameIndex = 3.
+   */
+  function onAnimationFrame(name:String = "", frameNumber:Int = -1, frameIndex:Int = -1):Void
+  {
+    // Do nothing by default.
+    // This can be overridden by, for example, scripts,
+    // or by calling `animationFrame.add()`.
+
+    // Try not to do anything expensive here, it runs many times a second.
+  }
+
+  function loadText():Void
+  {
+    textDisplay = new FlxTypeText(0, 0, 300, '', 32);
+    textDisplay.fieldWidth = boxData.text.width;
+    textDisplay.setFormat('Pixel Arial 11 Bold', boxData.text.size, FlxColor.fromString(boxData.text.color), LEFT, SHADOW,
+      FlxColor.fromString(boxData.text.shadowColor ?? '#00000000'), false);
+    textDisplay.borderSize = boxData.text.shadowWidth ?? 2;
+    textDisplay.sounds = [FlxG.sound.load(Paths.sound('pixelText'), 0.6)];
+
+    textDisplay.completeCallback = onTypingComplete;
+
+    textDisplay.x += boxData.text.offsets[0];
+    textDisplay.y += boxData.text.offsets[1];
+
+    add(textDisplay);
+  }
+
+  /**
+   * @param name The name of the animation to play.
+   * @param restart Whether to restart the animation if it is already playing.
+   * @param reversed If true, play the animation backwards, from the last frame to the first.
+   */
+  public function playAnimation(name:String, restart:Bool = false, ?reversed:Bool = false):Void
+  {
+    var correctName:String = correctAnimationName(name);
+    if (correctName == null) return;
+
+    this.boxSprite.animation.play(correctName, restart, false, 0);
+
+    applyAnimationOffsets(correctName);
+  }
+
+  /**
+   * Ensure that a given animation exists before playing it.
+   * Will gracefully check for name, then name with stripped suffixes, then 'idle', then fail to play.
+   * @param name 
+   */
+  function correctAnimationName(name:String):String
+  {
+    // If the animation exists, we're good.
+    if (hasAnimation(name)) return name;
+
+    trace('[DIALOGUE BOX] Animation "$name" does not exist!');
+
+    // Attempt to strip a `-alt` suffix, if it exists.
+    if (name.lastIndexOf('-') != -1)
+    {
+      var correctName = name.substring(0, name.lastIndexOf('-'));
+      trace('[DIALOGUE BOX] Attempting to fallback to "$correctName"');
+      return correctAnimationName(correctName);
+    }
+    else
+    {
+      if (name != 'idle')
+      {
+        trace('[DIALOGUE BOX] Attempting to fallback to "idle"');
+        return correctAnimationName('idle');
+      }
+      else
+      {
+        trace('[DIALOGUE BOX] Failing animation playback.');
+        return null;
+      }
+    }
+  }
+
+  public function hasAnimation(id:String):Bool
+  {
+    if (this.boxSprite.animation == null) return false;
+
+    return this.boxSprite.animation.getByName(id) != null;
+  }
+
+  /**
+   * Returns the name of the animation that is currently playing.
+   * If no animation is playing (usually this means the character is BROKEN!),
+   *   returns an empty string to prevent NPEs.
+   */
+  public function getCurrentAnimation():String
+  {
+    if (this.animation == null || this.animation.curAnim == null) return "";
+    return this.animation.curAnim.name;
+  }
+
+  /**
+   * Define the animation offsets for a specific animation.
+   */
+  public function setAnimationOffsets(name:String, xOffset:Float, yOffset:Float):Void
+  {
+    animationOffsets.set(name, [xOffset, yOffset]);
+  }
+
+  /**
+   * Retrieve an apply the animation offsets for a specific animation.
+   */
+  function applyAnimationOffsets(name:String):Void
+  {
+    var offsets:Array<Float> = animationOffsets.get(name);
+    if (offsets != null && !(offsets[0] == 0 && offsets[1] == 0))
+    {
+      this.animOffsets = offsets;
+    }
+    else
+    {
+      this.animOffsets = [0, 0];
+    }
+  }
+
+  public function isAnimationFinished():Bool
+  {
+    return this.boxSprite?.animation?.finished ?? false;
+  }
+
+  public function onDialogueStart(event:DialogueScriptEvent):Void {}
+
+  public function onDialogueCompleteLine(event:DialogueScriptEvent):Void {}
+
+  public function onDialogueLine(event:DialogueScriptEvent):Void {}
+
+  public function onDialogueSkip(event:DialogueScriptEvent):Void {}
+
+  public function onDialogueEnd(event:DialogueScriptEvent):Void {}
+
+  public function onUpdate(event:UpdateScriptEvent):Void {}
+
+  public function onDestroy(event:ScriptEvent):Void
+  {
+    if (boxSprite != null) remove(boxSprite);
+    boxSprite = null;
+    if (textDisplay != null) remove(textDisplay);
+    textDisplay = null;
+
+    this.clear();
+
+    this.x = 0;
+    this.y = 0;
+    this.globalOffsets = [0, 0];
+    this.alpha = 0;
+
+    this.kill();
+  }
+
+  public function onScriptEvent(event:ScriptEvent):Void {}
+}

source/funkin/play/cutscene/dialogue/DialogueBoxData.hx

@@ -0,0 +1,123 @@
+package funkin.play.cutscene.dialogue;
+
+import funkin.util.SerializerUtil;
+
+/**
+ * Data about a text box.
+ */
+@:jsonParse(j -> funkin.play.cutscene.dialogue.DialogueBoxData.fromJson(j))
+@:jsonStringify(v -> v.toJson())
+class DialogueBoxData
+{
+  public var version:String;
+  public var name:String;
+  public var assetPath:String;
+  public var flipX:Bool;
+  public var flipY:Bool;
+  public var isPixel:Bool;
+  public var offsets:Array<Float>;
+  public var text:DialogueBoxTextData;
+  public var scale:Float;
+  public var animations:Array<AnimationData>;
+
+  public function new(version:String, name:String, assetPath:String, flipX:Bool = false, flipY:Bool = false, isPixel:Bool = false, offsets:Null<Array<Float>>,
+      text:DialogueBoxTextData, scale:Float = 1.0, animations:Array<AnimationData>)
+  {
+    this.version = version;
+    this.name = name;
+    this.assetPath = assetPath;
+    this.flipX = flipX;
+    this.flipY = flipY;
+    this.isPixel = isPixel;
+    this.offsets = offsets ?? [0, 0];
+    this.text = text;
+    this.scale = scale;
+    this.animations = animations;
+  }
+
+  public static function fromString(i:String):DialogueBoxData
+  {
+    if (i == null || i == '') return null;
+    var data:
+      {
+        version:String,
+        name:String,
+        assetPath:String,
+        flipX:Bool,
+        flipY:Bool,
+        isPixel:Bool,
+        ?offsets:Array<Float>,
+        text:Dynamic,
+        scale:Float,
+        animations:Array<AnimationData>
+      } = tink.Json.parse(i);
+    return fromJson(data);
+  }
+
+  public static function fromJson(j:Dynamic):DialogueBoxData
+  {
+    // TODO: Check version and perform migrations if necessary.
+    if (j == null) return null;
+    return new DialogueBoxData(j.version, j.name, j.assetPath, j.flipX, j.flipY, j.isPixel, j.offsets, DialogueBoxTextData.fromJson(j.text), j.scale,
+      j.animations);
+  }
+
+  public function toJson():Dynamic
+  {
+    return {
+      version: this.version,
+      name: this.name,
+      assetPath: this.assetPath,
+      flipX: this.flipX,
+      flipY: this.flipY,
+      isPixel: this.isPixel,
+      offsets: this.offsets,
+      scale: this.scale,
+      animations: this.animations
+    };
+  }
+}
+
+/**
+ * Data about text in a text box.
+ */
+@:jsonParse(j -> funkin.play.cutscene.dialogue.DialogueBoxTextData.fromJson(j))
+@:jsonStringify(v -> v.toJson())
+class DialogueBoxTextData
+{
+  public var offsets:Array<Float>;
+  public var width:Int;
+  public var size:Int;
+  public var color:String;
+  public var shadowColor:Null<String>;
+  public var shadowWidth:Null<Int>;
+
+  public function new(offsets:Null<Array<Float>>, width:Null<Int>, size:Null<Int>, color:String, shadowColor:Null<String>, shadowWidth:Null<Int>)
+  {
+    this.offsets = offsets ?? [0, 0];
+    this.width = width ?? 300;
+    this.size = size ?? 32;
+    this.color = color;
+    this.shadowColor = shadowColor;
+    this.shadowWidth = shadowWidth;
+  }
+
+  public static function fromJson(j:Dynamic):DialogueBoxTextData
+  {
+    // TODO: Check version and perform migrations if necessary.
+    if (j == null) return null;
+    return new DialogueBoxTextData(j.offsets, j.width, j.size, j.color, j.shadowColor, j.shadowWidth);
+  }
+
+  public function toJson():Dynamic
+  {
+    return {
+      offsets: this.offsets,
+      width: this.width,
+      size: this.size,
+      color: this.color,
+      shadowColor: this.shadowColor,
+      shadowWidth: this.shadowWidth,
+    };
+  }
+}

source/funkin/play/cutscene/dialogue/DialogueBoxDataParser.hx

@@ -0,0 +1,159 @@
+package funkin.play.cutscene.dialogue;
+
+import openfl.Assets;
+import funkin.util.assets.DataAssets;
+import funkin.play.cutscene.dialogue.DialogueBox;
+import funkin.play.cutscene.dialogue.ScriptedDialogueBox;
+
+/**
+ * Contains utilities for loading and parsing dialogueBox data.
+ */
+class DialogueBoxDataParser
+{
+  public static final DIALOGUE_BOX_DATA_VERSION:String = '1.0.0';
+  public static final DIALOGUE_BOX_DATA_VERSION_RULE:String = '1.0.x';
+
+  static final dialogueBoxCache:Map<String, DialogueBox> = new Map<String, DialogueBox>();
+
+  static final dialogueBoxScriptedClass:Map<String, String> = new Map<String, String>();
+
+  static final DEFAULT_DIALOGUE_BOX_ID:String = 'UNKNOWN';
+
+  /**
+   * Parses and preloads the game's dialogueBox data and scripts when the game starts.
+   * 
+   * If you want to force dialogue boxes to be reloaded, you can just call this function again.
+   */
+  public static function loadDialogueBoxCache():Void
+  {
+    clearDialogueBoxCache();
+    trace('Loading dialogue box cache...');
+
+    //
+    // SCRIPTED CONVERSATIONS
+    //
+    var scriptedDialogueBoxClassNames:Array<String> = ScriptedDialogueBox.listScriptClasses();
+    trace('  Instantiating ${scriptedDialogueBoxClassNames.length} scripted dialogue boxes...');
+    for (dialogueBoxCls in scriptedDialogueBoxClassNames)
+    {
+      var dialogueBox:DialogueBox = ScriptedDialogueBox.init(dialogueBoxCls, DEFAULT_DIALOGUE_BOX_ID);
+      if (dialogueBox != null)
+      {
+        trace('    Loaded scripted dialogue box: ${dialogueBox.dialogueBoxName}');
+        // Disable the rendering logic for dialogueBox until it's loaded.
+        // Note that kill() =/= destroy()
+        dialogueBox.kill();
+
+        // Then store it.
+        dialogueBoxCache.set(dialogueBox.dialogueBoxId, dialogueBox);
+      }
+      else
+      {
+        trace('    Failed to instantiate scripted dialogueBox class: ${dialogueBoxCls}');
+      }
+    }
+
+    //
+    // UNSCRIPTED CONVERSATIONS
+    //
+    // Scripts refers to code here, not the actual dialogue.
+    var dialogueBoxIdList:Array<String> = DataAssets.listDataFilesInPath('dialogue/boxes/');
+    // Filter out dialogue boxes that are scripted.
+    var unscriptedDialogueBoxIds:Array<String> = dialogueBoxIdList.filter(function(dialogueBoxId:String):Bool {
+      return !dialogueBoxCache.exists(dialogueBoxId);
+    });
+    trace('  Fetching data for ${unscriptedDialogueBoxIds.length} dialogue boxes...');
+    for (dialogueBoxId in unscriptedDialogueBoxIds)
+    {
+      try
+      {
+        var dialogueBox:DialogueBox = new DialogueBox(dialogueBoxId);
+        if (dialogueBox != null)
+        {
+          trace('    Loaded dialogueBox data: ${dialogueBox.dialogueBoxName}');
+          dialogueBoxCache.set(dialogueBox.dialogueBoxId, dialogueBox);
+        }
+      }
+      catch (e)
+      {
+        trace(e);
+        continue;
+      }
+    }
+  }
+
+  /**
+   * Fetches data for a dialogueBox and returns a DialogueBox instance,
+   * ready to be displayed.
+   * @param dialogueBoxId The ID of the dialogueBox to fetch.
+   * @return The dialogueBox instance, or null if the dialogueBox was not found.
+   */
+  public static function fetchDialogueBox(dialogueBoxId:String):Null<DialogueBox>
+  {
+    if (dialogueBoxId != null && dialogueBoxId != '' && dialogueBoxCache.exists(dialogueBoxId))
+    {
+      trace('Successfully fetched dialogueBox: ${dialogueBoxId}');
+      var dialogueBox:DialogueBox = dialogueBoxCache.get(dialogueBoxId);
+      dialogueBox.revive();
+      return dialogueBox;
+    }
+    else
+    {
+      trace('Failed to fetch dialogueBox, not found in cache: ${dialogueBoxId}');
+      return null;
+    }
+  }
+
+  static function clearDialogueBoxCache():Void
+  {
+    if (dialogueBoxCache != null)
+    {
+      for (dialogueBox in dialogueBoxCache)
+      {
+        dialogueBox.destroy();
+      }
+      dialogueBoxCache.clear();
+    }
+  }
+
+  public static function listDialogueBoxIds():Array<String>
+  {
+    return dialogueBoxCache.keys().array();
+  }
+
+  /**
+   * Load a dialogueBox's JSON file, parse its data, and return it.
+   * 
+   * @param dialogueBoxId The dialogueBox to load.
+   * @return The dialogueBox data, or null if validation failed.
+   */
+  public static function parseDialogueBoxData(dialogueBoxId:String):Null<DialogueBoxData>
+  {
+    var rawJson:String = loadDialogueBoxFile(dialogueBoxId);
+
+    try
+    {
+      var dialogueBoxData:DialogueBoxData = DialogueBoxData.fromString(rawJson);
+      return dialogueBoxData;
+    }
+    catch (e)
+    {
+      trace('Failed to parse dialogueBox ($dialogueBoxId).');
+      trace(e);
+      return null;
+    }
+  }
+
+  static function loadDialogueBoxFile(dialogueBoxPath:String):String
+  {
+    var dialogueBoxFilePath:String = Paths.json('dialogue/boxes/${dialogueBoxPath}');
+    var rawJson:String = Assets.getText(dialogueBoxFilePath).trim();
+
+    while (!rawJson.endsWith('}') && rawJson.length > 0)
+    {
+      rawJson = rawJson.substr(0, rawJson.length - 1);
+    }
+
+    return rawJson;
+  }
+}

source/funkin/play/cutscene/dialogue/ScriptedConversation.hx

@@ -0,0 +1,4 @@
+package funkin.play.cutscene.dialogue;
+
+@:hscriptClass
+class ScriptedConversation extends Conversation implements polymod.hscript.HScriptedClass {}

source/funkin/play/cutscene/dialogue/ScriptedDialogueBox.hx

@@ -0,0 +1,4 @@
+package funkin.play.cutscene.dialogue;
+
+@:hscriptClass
+class ScriptedDialogueBox extends DialogueBox implements polymod.hscript.HScriptedClass {}

source/funkin/play/cutscene/dialogue/ScriptedSpeaker.hx

@@ -0,0 +1,4 @@
+package funkin.play.cutscene.dialogue;
+
+@:hscriptClass
+class ScriptedSpeaker extends Speaker implements polymod.hscript.HScriptedClass {}

source/funkin/play/cutscene/dialogue/Speaker.hx

@@ -0,0 +1,274 @@
+package funkin.play.cutscene.dialogue;
+
+import flixel.FlxSprite;
+import funkin.modding.events.ScriptEvent;
+import flixel.graphics.frames.FlxFramesCollection;
+import funkin.util.assets.FlxAnimationUtil;
+import funkin.modding.IScriptedClass.IDialogueScriptedClass;
+
+/**
+ * The character sprite which displays during dialogue.
+ * 
+ * Most conversations have two speakers, with one being flipped.
+ */
+class Speaker extends FlxSprite implements IDialogueScriptedClass
+{
+  /**
+   * The internal ID for this speaker.
+   */
+  public final speakerId:String;
+
+  /**
+   * The full data for a speaker.
+   */
+  var speakerData:SpeakerData;
+
+  /**
+   * A readable name for this speaker.
+   */
+  public var speakerName(get, null):String;
+
+  function get_speakerName():String
+  {
+    return speakerData.name;
+  }
+
+  /**
+   * Offset the speaker's sprite by this much when playing each animation.
+   */
+  var animationOffsets:Map<String, Array<Float>> = new Map<String, Array<Float>>();
+
+  /**
+   * The current animation offset being used.
+   */
+  var animOffsets(default, set):Array<Float> = [0, 0];
+
+  function set_animOffsets(value:Array<Float>):Array<Float>
+  {
+    if (animOffsets == null) animOffsets = [0, 0];
+    if ((animOffsets[0] == value[0]) && (animOffsets[1] == value[1])) return value;
+
+    var xDiff:Float = value[0] - animOffsets[0];
+    var yDiff:Float = value[1] - animOffsets[1];
+
+    this.x += xDiff;
+    this.y += yDiff;
+
+    return animOffsets = value;
+  }
+
+  /**
+   * The offset of the speaker overall.
+   */
+  public var globalOffsets(default, set):Array<Float> = [0, 0];
+
+  function set_globalOffsets(value:Array<Float>):Array<Float>
+  {
+    if (globalOffsets == null) globalOffsets = [0, 0];
+    if (globalOffsets == value) return value;
+
+    var xDiff:Float = value[0] - globalOffsets[0];
+    var yDiff:Float = value[1] - globalOffsets[1];
+
+    this.x += xDiff;
+    this.y += yDiff;
+    return globalOffsets = value;
+  }
+
+  public function new(speakerId:String)
+  {
+    super();
+
+    this.speakerId = speakerId;
+    this.speakerData = SpeakerDataParser.parseSpeakerData(this.speakerId);
+
+    if (speakerData == null) throw 'Could not load speaker data for speaker ID "$speakerId"';
+  }
+
+  /**
+   * Called when speaker is being created.
+   * @param event The script event.
+   */
+  public function onCreate(event:ScriptEvent):Void
+  {
+    this.globalOffsets = [0, 0];
+    this.x = 0;
+    this.y = 0;
+    this.alpha = 1;
+
+    loadSpritesheet();
+    loadAnimations();
+  }
+
+  function loadSpritesheet():Void
+  {
+    trace('[SPEAKER] Loading spritesheet ${speakerData.assetPath} for ${speakerId}');
+
+    var tex:FlxFramesCollection = Paths.getSparrowAtlas(speakerData.assetPath);
+    if (tex == null)
+    {
+      trace('Could not load Sparrow sprite: ${speakerData.assetPath}');
+      return;
+    }
+
+    this.frames = tex;
+
+    if (speakerData.isPixel)
+    {
+      this.antialiasing = false;
+    }
+    else
+    {
+      this.antialiasing = true;
+    }
+
+    this.flipX = speakerData.flipX;
+    this.globalOffsets = speakerData.offsets;
+    this.setScale(speakerData.scale);
+  }
+
+  /**
+   * Set the sprite scale to the appropriate value.
+   * @param scale 
+   */
+  public function setScale(scale:Null<Float>):Void
+  {
+    if (scale == null) scale = 1.0;
+    this.scale.x = scale;
+    this.scale.y = scale;
+    this.updateHitbox();
+  }
+
+  function loadAnimations():Void
+  {
+    trace('[SPEAKER] Loading ${speakerData.animations.length} animations for ${speakerId}');
+
+    FlxAnimationUtil.addAtlasAnimations(this, speakerData.animations);
+
+    for (anim in speakerData.animations)
+    {
+      if (anim.offsets == null)
+      {
+        setAnimationOffsets(anim.name, 0, 0);
+      }
+      else
+      {
+        setAnimationOffsets(anim.name, anim.offsets[0], anim.offsets[1]);
+      }
+    }
+
+    var animNames:Array<String> = this.animation.getNameList();
+    trace('[SPEAKER] Successfully loaded ${animNames.length} animations for ${speakerId}');
+  }
+
+  /**
+   * @param name The name of the animation to play.
+   * @param restart Whether to restart the animation if it is already playing.
+   */
+  public function playAnimation(name:String, restart:Bool = false):Void
+  {
+    var correctName:String = correctAnimationName(name);
+    if (correctName == null) return;
+
+    this.animation.play(correctName, restart, false, 0);
+
+    applyAnimationOffsets(correctName);
+  }
+
+  public function getCurrentAnimation():String
+  {
+    if (this.animation == null || this.animation.curAnim == null) return "";
+    return this.animation.curAnim.name;
+  }
+
+  /**
+   * Ensure that a given animation exists before playing it.
+   * Will gracefully check for name, then name with stripped suffixes, then 'idle', then fail to play.
+   * @param name 
+   */
+  function correctAnimationName(name:String):String
+  {
+    // If the animation exists, we're good.
+    if (hasAnimation(name)) return name;
+
+    trace('[BOPPER] Animation "$name" does not exist!');
+
+    // Attempt to strip a `-alt` suffix, if it exists.
+    if (name.lastIndexOf('-') != -1)
+    {
+      var correctName = name.substring(0, name.lastIndexOf('-'));
+      trace('[BOPPER] Attempting to fallback to "$correctName"');
+      return correctAnimationName(correctName);
+    }
+    else
+    {
+      if (name != 'idle')
+      {
+        trace('[BOPPER] Attempting to fallback to "idle"');
+        return correctAnimationName('idle');
+      }
+      else
+      {
+        trace('[BOPPER] Failing animation playback.');
+        return null;
+      }
+    }
+  }
+
+  public function hasAnimation(id:String):Bool
+  {
+    if (this.animation == null) return false;
+
+    return this.animation.getByName(id) != null;
+  }
+
+  /**
+   * Define the animation offsets for a specific animation.
+   */
+  public function setAnimationOffsets(name:String, xOffset:Float, yOffset:Float):Void
+  {
+    animationOffsets.set(name, [xOffset, yOffset]);
+  }
+
+  /**
+   * Retrieve an apply the animation offsets for a specific animation.
+   */
+  function applyAnimationOffsets(name:String):Void
+  {
+    var offsets:Array<Float> = animationOffsets.get(name);
+    if (offsets != null && !(offsets[0] == 0 && offsets[1] == 0))
+    {
+      this.animOffsets = offsets;
+    }
+    else
+    {
+      this.animOffsets = [0, 0];
+    }
+  }
+
+  public function onDialogueStart(event:DialogueScriptEvent):Void {}
+
+  public function onDialogueCompleteLine(event:DialogueScriptEvent):Void {}
+
+  public function onDialogueLine(event:DialogueScriptEvent):Void {}
+
+  public function onDialogueSkip(event:DialogueScriptEvent):Void {}
+
+  public function onDialogueEnd(event:DialogueScriptEvent):Void {}
+
+  public function onUpdate(event:UpdateScriptEvent):Void {}
+
+  public function onDestroy(event:ScriptEvent):Void
+  {
+    frames = null;
+
+    this.x = 0;
+    this.y = 0;
+    this.globalOffsets = [0, 0];
+    this.alpha = 0;
+
+    this.kill();
+  }
+
+  public function onScriptEvent(event:ScriptEvent):Void {}
+}

source/funkin/play/cutscene/dialogue/SpeakerData.hx

@@ -0,0 +1,76 @@
+package funkin.play.cutscene.dialogue;
+
+/**
+ * Data about a conversation.
+ * Includes what speakers are in the conversation, and what phrases they say.
+ */
+@:jsonParse(j -> funkin.play.cutscene.dialogue.SpeakerData.fromJson(j))
+@:jsonStringify(v -> v.toJson())
+class SpeakerData
+{
+  public var version:String;
+  public var name:String;
+  public var assetPath:String;
+  public var flipX:Bool;
+  public var isPixel:Bool;
+  public var offsets:Array<Float>;
+  public var scale:Float;
+  public var animations:Array<AnimationData>;
+
+  public function new(version:String, name:String, assetPath:String, animations:Array<AnimationData>, ?offsets:Array<Float>, ?flipX:Bool = false,
+      ?isPixel:Bool = false, ?scale:Float = 1.0)
+  {
+    this.version = version;
+    this.name = name;
+    this.assetPath = assetPath;
+    this.animations = animations;
+
+    this.offsets = offsets;
+    if (this.offsets == null || this.offsets == []) this.offsets = [0, 0];
+
+    this.flipX = flipX;
+    this.isPixel = isPixel;
+    this.scale = scale;
+  }
+
+  public static function fromString(i:String):SpeakerData
+  {
+    if (i == null || i == '') return null;
+    var data:
+      {
+        version:String,
+        name:String,
+        assetPath:String,
+        animations:Array<AnimationData>,
+        ?offsets:Array<Float>,
+        ?flipX:Bool,
+        ?isPixel:Bool,
+        ?scale:Float
+      } = tink.Json.parse(i);
+    return fromJson(data);
+  }
+
+  public static function fromJson(j:Dynamic):SpeakerData
+  {
+    // TODO: Check version and perform migrations if necessary.
+    if (j == null) return null;
+    return new SpeakerData(j.version, j.name, j.assetPath, j.animations, j.offsets, j.flipX, j.isPixel, j.scale);
+  }
+
+  public function toJson():Dynamic
+  {
+    var result:Dynamic =
+      {
+        version: this.version,
+        name: this.name,
+        assetPath: this.assetPath,
+        animations: this.animations,
+        flipX: this.flipX,
+        isPixel: this.isPixel
+      };
+
+    if (this.scale != 1.0) result.scale = this.scale;
+
+    return result;
+  }
+}

source/funkin/play/cutscene/dialogue/SpeakerDataParser.hx

@@ -0,0 +1,159 @@
+package funkin.play.cutscene.dialogue;
+
+import openfl.Assets;
+import funkin.util.assets.DataAssets;
+import funkin.play.cutscene.dialogue.Speaker;
+import funkin.play.cutscene.dialogue.ScriptedSpeaker;
+
+/**
+ * Contains utilities for loading and parsing speaker data.
+ */
+class SpeakerDataParser
+{
+  public static final SPEAKER_DATA_VERSION:String = '1.0.0';
+  public static final SPEAKER_DATA_VERSION_RULE:String = '1.0.x';
+
+  static final speakerCache:Map<String, Speaker> = new Map<String, Speaker>();
+
+  static final speakerScriptedClass:Map<String, String> = new Map<String, String>();
+
+  static final DEFAULT_SPEAKER_ID:String = 'UNKNOWN';
+
+  /**
+   * Parses and preloads the game's speaker data and scripts when the game starts.
+   * 
+   * If you want to force speakers to be reloaded, you can just call this function again.
+   */
+  public static function loadSpeakerCache():Void
+  {
+    clearSpeakerCache();
+    trace('Loading dialogue speaker cache...');
+
+    //
+    // SCRIPTED CONVERSATIONS
+    //
+    var scriptedSpeakerClassNames:Array<String> = ScriptedSpeaker.listScriptClasses();
+    trace('  Instantiating ${scriptedSpeakerClassNames.length} scripted speakers...');
+    for (speakerCls in scriptedSpeakerClassNames)
+    {
+      var speaker:Speaker = ScriptedSpeaker.init(speakerCls, DEFAULT_SPEAKER_ID);
+      if (speaker != null)
+      {
+        trace('    Loaded scripted speaker: ${speaker.speakerName}');
+        // Disable the rendering logic for speaker until it's loaded.
+        // Note that kill() =/= destroy()
+        speaker.kill();
+
+        // Then store it.
+        speakerCache.set(speaker.speakerId, speaker);
+      }
+      else
+      {
+        trace('    Failed to instantiate scripted speaker class: ${speakerCls}');
+      }
+    }
+
+    //
+    // UNSCRIPTED CONVERSATIONS
+    //
+    // Scripts refers to code here, not the actual dialogue.
+    var speakerIdList:Array<String> = DataAssets.listDataFilesInPath('dialogue/speakers/');
+    // Filter out speakers that are scripted.
+    var unscriptedSpeakerIds:Array<String> = speakerIdList.filter(function(speakerId:String):Bool {
+      return !speakerCache.exists(speakerId);
+    });
+    trace('  Fetching data for ${unscriptedSpeakerIds.length} speakers...');
+    for (speakerId in unscriptedSpeakerIds)
+    {
+      try
+      {
+        var speaker:Speaker = new Speaker(speakerId);
+        if (speaker != null)
+        {
+          trace('    Loaded speaker data: ${speaker.speakerName}');
+          speakerCache.set(speaker.speakerId, speaker);
+        }
+      }
+      catch (e)
+      {
+        trace(e);
+        continue;
+      }
+    }
+  }
+
+  /**
+   * Fetches data for a speaker and returns a Speaker instance,
+   * ready to be displayed.
+   * @param speakerId The ID of the speaker to fetch.
+   * @return The speaker instance, or null if the speaker was not found.
+   */
+  public static function fetchSpeaker(speakerId:String):Null<Speaker>
+  {
+    if (speakerId != null && speakerId != '' && speakerCache.exists(speakerId))
+    {
+      trace('Successfully fetched speaker: ${speakerId}');
+      var speaker:Speaker = speakerCache.get(speakerId);
+      speaker.revive();
+      return speaker;
+    }
+    else
+    {
+      trace('Failed to fetch speaker, not found in cache: ${speakerId}');
+      return null;
+    }
+  }
+
+  static function clearSpeakerCache():Void
+  {
+    if (speakerCache != null)
+    {
+      for (speaker in speakerCache)
+      {
+        speaker.destroy();
+      }
+      speakerCache.clear();
+    }
+  }
+
+  public static function listSpeakerIds():Array<String>
+  {
+    return speakerCache.keys().array();
+  }
+
+  /**
+   * Load a speaker's JSON file, parse its data, and return it.
+   * 
+   * @param speakerId The speaker to load.
+   * @return The speaker data, or null if validation failed.
+   */
+  public static function parseSpeakerData(speakerId:String):Null<SpeakerData>
+  {
+    var rawJson:String = loadSpeakerFile(speakerId);
+
+    try
+    {
+      var speakerData:SpeakerData = SpeakerData.fromString(rawJson);
+      return speakerData;
+    }
+    catch (e)
+    {
+      trace('Failed to parse speaker ($speakerId).');
+      trace(e);
+      return null;
+    }
+  }
+
+  static function loadSpeakerFile(speakerPath:String):String
+  {
+    var speakerFilePath:String = Paths.json('dialogue/speakers/${speakerPath}');
+    var rawJson:String = Assets.getText(speakerFilePath).trim();
+
+    while (!rawJson.endsWith('}') && rawJson.length > 0)
+    {
+      rawJson = rawJson.substr(0, rawJson.length - 1);
+    }
+
+    return rawJson;
+  }
+}

source/funkin/play/song/SongData.hx

@@ -3,6 +3,8 @@ package funkin.play.song;
 import funkin.modding.events.ScriptEventDispatcher;
 import funkin.modding.events.ScriptEvent;
 import flixel.util.typeLimit.OneOfTwo;
+import funkin.modding.events.ScriptEvent;
+import funkin.modding.events.ScriptEventDispatcher;
 import funkin.play.song.ScriptedSong;
 import funkin.util.assets.DataAssets;
 import haxe.DynamicAccess;
@@ -22,6 +24,7 @@ class SongDataParser
 
   static final DEFAULT_SONG_ID:String = 'UNKNOWN';
   static final SONG_DATA_PATH:String = 'songs/';
+  static final MUSIC_DATA_PATH:String = 'music/';
   static final SONG_DATA_SUFFIX:String = '-metadata.json';
 
   /**
@@ -184,6 +187,36 @@ class SongDataParser
     return rawJson;
   }
 
+  public static function parseMusicMetadata(musicId:String):SongMetadata
+  {
+    var rawJson:String = loadMusicMetadataFile(musicId);
+    var jsonData:Dynamic = null;
+    try
+    {
+      jsonData = Json.parse(rawJson);
+    }
+    catch (e) {}
+
+    var musicMetadata:SongMetadata = SongMigrator.migrateSongMetadata(jsonData, musicId);
+    musicMetadata = SongValidator.validateSongMetadata(musicMetadata, musicId);
+
+    return musicMetadata;
+  }
+
+  static function loadMusicMetadataFile(musicPath:String, variation:String = ''):String
+  {
+    var musicMetadataFilePath:String = (variation != '') ? Paths.file('$MUSIC_DATA_PATH$musicPath/$musicPath-metadata-$variation.json') : Paths.file('$MUSIC_DATA_PATH$musicPath/$musicPath-metadata.json');
+
+    var rawJson:String = Assets.getText(musicMetadataFilePath).trim();
+
+    while (!rawJson.endsWith("}"))
+    {
+      rawJson = rawJson.substr(0, rawJson.length - 1);
+    }
+
+    return rawJson;
+  }
+
   public static function parseSongChartData(songId:String, variation:String = ''):SongChartData
   {
     var rawJson:String = loadSongChartDataFile(songId, variation);
@@ -376,8 +409,7 @@ abstract SongNoteData(RawSongNoteData)
 
   function get_stepTime():Float
   {
-    // TODO: Account for changes in BPM.
+    return Conductor.getTimeInSteps(this.t);
-    return this.t / Conductor.stepLengthMs;
   }
 
   /**
@@ -562,8 +594,7 @@ abstract SongEventData(RawSongEventData)
 
   function get_stepTime():Float
   {
-    // TODO: Account for changes in BPM.
+    return Conductor.getTimeInSteps(this.t);
-    return this.t / Conductor.stepLengthMs;
   }
 
   public var event(get, set):String;
@@ -805,7 +836,7 @@ typedef RawSongTimeChange =
    * Time in beats (int). The game will calculate further beat values based on this one,
    * so it can do it in a simple linear fashion.
    */
-  var b:Int;
+  var b:Null<Float>;
 
   /**
    * Quarter notes per minute (float). Cannot be empty in the first element of the list,
@@ -835,9 +866,9 @@ typedef RawSongTimeChange =
  * Add aliases to the minimalized property names of the typedef,
  * to improve readability.
  */
-abstract SongTimeChange(RawSongTimeChange)
+abstract SongTimeChange(RawSongTimeChange) from RawSongTimeChange
 {
-  public function new(timeStamp:Float, beatTime:Int, bpm:Float, timeSignatureNum:Int = 4, timeSignatureDen:Int = 4, beatTuplets:Array<Int>)
+  public function new(timeStamp:Float, beatTime:Null<Float>, bpm:Float, timeSignatureNum:Int = 4, timeSignatureDen:Int = 4, beatTuplets:Array<Int>)
   {
     this =
       {
@@ -862,7 +893,7 @@ abstract SongTimeChange(RawSongTimeChange)
     return this.t = value;
   }
 
-  public var beatTime(get, set):Int;
+  public var beatTime(get, set):Null<Float>;
 
   function get_beatTime():Int
   {

source/funkin/ui/debug/charting/ChartEditorState.hx

@@ -2057,7 +2057,7 @@ class ChartEditorState extends HaxeUIState
       {
         // Handle extending the note as you drag.
 
-        // Since use Math.floor and stepCrochet here, the hold notes will be beat snapped.
+        // Since use Math.floor and stepLengthMs here, the hold notes will be beat snapped.
         var dragLengthSteps:Float = Math.floor((cursorMs - currentPlaceNoteData.time) / Conductor.stepLengthMs);
 
         // Without this, the newly placed note feels too short compared to the user's input.
@@ -2770,7 +2770,7 @@ class ChartEditorState extends HaxeUIState
     }
   }
 
-  override function dispatchEvent(event:ScriptEvent):Void
+  public override function dispatchEvent(event:ScriptEvent):Void
   {
     super.dispatchEvent(event);
 

source/funkin/ui/story/StoryMenuState.hx

@@ -15,6 +15,7 @@ import funkin.modding.events.ScriptEventDispatcher;
 import funkin.play.PlayState;
 import funkin.play.PlayStatePlaylist;
 import funkin.play.song.Song;
+import funkin.play.song.SongData.SongMetadata;
 import funkin.play.song.SongData.SongDataParser;
 import funkin.util.Constants;
 
@@ -115,12 +116,7 @@ class StoryMenuState extends MusicBeatState
     transIn = FlxTransitionableState.defaultTransIn;
     transOut = FlxTransitionableState.defaultTransOut;
 
-    if (!FlxG.sound.music.playing)
+    playMenuMusic();
-    {
-      FlxG.sound.playMusic(Paths.music('freakyMenu'));
-      FlxG.sound.music.fadeIn(4, 0, 0.7);
-    }
-    Conductor.forceBPM(Constants.FREAKY_MENU_BPM);
 
     if (stickerSubState != null)
     {
@@ -129,8 +125,6 @@ class StoryMenuState extends MusicBeatState
 
       openSubState(stickerSubState);
       stickerSubState.degenStickers();
-
-      // resetSubState();
     }
 
     persistentUpdate = persistentDraw = true;
@@ -203,6 +197,18 @@ class StoryMenuState extends MusicBeatState
     #end
   }
 
+  function playMenuMusic():Void
+  {
+    if (FlxG.sound.music == null || !FlxG.sound.music.playing)
+    {
+      var freakyMenuMetadata:SongMetadata = SongDataParser.parseMusicMetadata('freakyMenu');
+      Conductor.mapTimeChanges(freakyMenuMetadata.timeChanges);
+
+      FlxG.sound.playMusic(Paths.music('freakyMenu/freakyMenu'), 0);
+      FlxG.sound.music.fadeIn(4, 0, 0.7);
+    }
+  }
+
   function updateData():Void
   {
     currentLevel = LevelRegistry.instance.fetchEntry(currentLevelId);
@@ -459,7 +465,7 @@ class StoryMenuState extends MusicBeatState
     }
   }
 
-  override function dispatchEvent(event:ScriptEvent):Void
+  public override function dispatchEvent(event:ScriptEvent):Void
   {
     // super.dispatchEvent(event) dispatches event to module scripts.
     super.dispatchEvent(event);

source/funkin/util/Constants.hx

@@ -118,27 +118,72 @@ class Constants
   public static final DEFAULT_SONG:String = 'tutorial';
 
   /**
-   * OTHER
+   * TIMING
    */
   // ==============================
 
+  /**
+   * The number of seconds in a minute.
+   */
+  public static final SECS_PER_MIN:Int = 60;
+
+  /**
+   * The number of milliseconds in a second.
+   */
+  public static final MS_PER_SEC:Int = 1000;
+
+  /**
+   * The number of microseconds in a millisecond.
+   */
+  public static final US_PER_MS:Int = 1000;
+
+  /**
+   * The number of microseconds in a second.
+   */
+  public static final US_PER_SEC:Int = US_PER_MS * MS_PER_SEC;
+
+  /**
+   * The number of nanoseconds in a microsecond.
+   */
+  public static final NS_PER_US:Int = 1000;
+
+  /**
+   * The number of nanoseconds in a millisecond.
+   */
+  public static final NS_PER_MS:Int = NS_PER_US * US_PER_MS;
+
+  /**
+   * The number of nanoseconds in a second.
+   */
+  public static final NS_PER_SEC:Int = NS_PER_US * US_PER_MS * MS_PER_SEC;
+
   /**
    * All MP3 decoders introduce a playback delay of `528` samples,
    * which at 44,100 Hz (samples per second) is ~12 ms.
    */
-  public static final MP3_DELAY_MS:Float = 528 / 44100 * 1000;
+  public static final MP3_DELAY_MS:Float = 528 / 44100 * MS_PER_SEC;
+
+  /**
+   * The default BPM of the conductor.
+   */
+  public static final DEFAULT_BPM:Float = 100.0;
+
+  public static final DEFAULT_TIME_SIGNATURE_NUM:Int = 4;
+
+  public static final DEFAULT_TIME_SIGNATURE_DEN:Int = 4;
+
+  public static final STEPS_PER_BEAT:Int = 4;
+
+  /**
+   * OTHER
+   */
+  // ==============================
 
   /**
    * The scale factor to use when increasing the size of pixel art graphics.
    */
   public static final PIXEL_ART_SCALE:Float = 6;
 
-  /**
-   * The BPM of the title screen and menu music.
-   * TODO: Move to metadata file.
-   */
-  public static final FREAKY_MENU_BPM:Float = 102;
-
   /**
    * The volume at which to play the countdown before the song starts.
    */