add lightmaps

source/funkin/graphics/framebuffer/FrameBuffer.hx

@@ -1,5 +1,6 @@
 package funkin.graphics.framebuffer;
 
+import flixel.FlxSprite;
 import flixel.FlxCamera;
 import flixel.util.FlxColor;
 import openfl.Lib;
@@ -118,4 +119,14 @@ class FrameBuffer
   {
     spriteCopies.push(spriteCopy);
   }
+
+  /**
+   * Adds the sprite to the frame buffer. The sprite will only be seen from
+   * the frame buffer.
+   * @param sprite the sprite
+   */
+  public function moveSprite(sprite:FlxSprite):Void
+  {
+    sprite.cameras = [camera];
+  }
 }

source/funkin/graphics/framebuffer/FrameBufferManager.hx

@@ -51,11 +51,21 @@ class FrameBufferManager
    * @param color if this is not `null`, the sprite will be filled with the color.
    * if this is `null`, the sprite will keep its original color.
    */
-  public function addSpriteCopyTo(name:String, sprite:FlxSprite, color:Null<FlxColor> = null):Void
+  public function copySpriteTo(name:String, sprite:FlxSprite, color:Null<FlxColor> = null):Void
   {
     frameBufferMap[name].addSpriteCopy(new SpriteCopy(sprite, color));
   }
 
+  /**
+   * Adds the sprite to the frame buffer. The sprite will only be seen from the frame buffer.
+   * @param name the name of the frame buffer
+   * @param sprite the sprite
+   */
+  public function moveSpriteTo(name:String, sprite:FlxSprite):Void
+  {
+    frameBufferMap[name].moveSprite(sprite);
+  }
+
   /**
    * Call this before drawing anything.
    */

source/funkin/graphics/framebuffer/SpriteCopy.hx

@@ -10,7 +10,7 @@ import flixel.util.FlxColor;
 class SpriteCopy
 {
   final sprite:FlxSprite;
-  var color:Null<FlxColor>;
+  final color:Null<FlxColor>;
 
   public function new(sprite:FlxSprite, color:Null<FlxColor>)
   {

source/funkin/graphics/shaders/RuntimeRainShader.hx

@@ -86,6 +86,14 @@ class RuntimeRainShader extends RuntimePostEffectShader
     return mask = value;
   }
 
+  public var lightMap(default, set):BitmapData;
+
+  function set_lightMap(value:BitmapData):BitmapData
+  {
+    this.setBitmapData('uLightMap', value);
+    return lightMap = value;
+  }
+
   public var numLights(default, set):Int = 0;
 
   function set_numLights(value:Int):Int

source/funkin/play/stage/Stage.hx

@@ -1,5 +1,6 @@
 package funkin.play.stage;
 
+import openfl.display.BlendMode;
 import funkin.graphics.framebuffer.FrameBufferManager;
 import flixel.util.FlxColor;
 import funkin.graphics.framebuffer.SpriteCopy;
@@ -800,6 +801,22 @@ class Stage extends FlxSpriteGroup implements IPlayStateScriptedClass
     }
   }
 
+  /**
+   * FIXME: Polymod hack
+   */
+  function stringEndsWith(a:String, b:String):Bool
+  {
+    return a.endsWith(b);
+  }
+
+  /**
+   * FIXME: Polymod hack
+   */
+  function setBlendAdd(sprite:FlxSprite, blend:BlendMode):Void
+  {
+    sprite.blend = blend;
+  }
+
   public function onScriptEvent(event:ScriptEvent) {}
 
   public function onPause(event:PauseScriptEvent) {}