Funkin/source/MainMenuState.hx

package;

import flixel.FlxG;
import flixel.FlxObject;
import flixel.FlxSprite;
import flixel.effects.FlxFlicker;
import flixel.graphics.frames.FlxAtlasFrames;
import flixel.group.FlxGroup.FlxTypedGroup;
import flixel.tweens.FlxEase;
import flixel.tweens.FlxTween;

class MainMenuState extends MusicBeatState
{
	var curSelected:Int = 0;

	var menuItems:FlxTypedGroup<FlxSprite>;

	var optionShit:Array<String> = ['story mode', 'freeplay', 'donate'];

	var magenta:FlxSprite;
	var camFollow:FlxObject;

	override function create()
	{
		persistentUpdate = persistentDraw = true;

		var bg:FlxSprite = new FlxSprite(-80).loadGraphic(AssetPaths.menuBG__png);
		bg.scrollFactor.x = 0;
		bg.scrollFactor.y = 0.18;
		bg.setGraphicSize(Std.int(bg.width * 1.1));
		bg.updateHitbox();
		bg.screenCenter();
		bg.antialiasing = true;
		add(bg);

		camFollow = new FlxObject(0, 0, 1, 1);
		add(camFollow);

		magenta = new FlxSprite(-80).loadGraphic(AssetPaths.menuBGMagenta__png);
		magenta.scrollFactor.x = 0;
		magenta.scrollFactor.y = 0.18;
		magenta.setGraphicSize(Std.int(magenta.width * 1.1));
		magenta.updateHitbox();
		magenta.screenCenter();
		magenta.visible = false;
		magenta.antialiasing = true;
		add(magenta);
		// magenta.scrollFactor.set();

		menuItems = new FlxTypedGroup<FlxSprite>();
		add(menuItems);

		var tex = FlxAtlasFrames.fromSparrow(AssetPaths.FNF_main_menu_assets__png, AssetPaths.FNF_main_menu_assets__xml);

		for (i in 0...optionShit.length)
		{
			var menuItem:FlxSprite = new FlxSprite(0, 60 + (i * 160));
			menuItem.frames = tex;
			menuItem.animation.addByPrefix('idle', optionShit[i] + " basic", 24);
			menuItem.animation.addByPrefix('selected', optionShit[i] + " white", 24);
			menuItem.animation.play('idle');
			menuItem.ID = i;
			menuItem.screenCenter(X);
			menuItems.add(menuItem);
			menuItem.scrollFactor.set();
			menuItem.antialiasing = true;
		}

		FlxG.camera.follow(camFollow, null, 0.06);

		changeItem();

		super.create();
	}

	var selectedSomethin:Bool = false;

	override function update(elapsed:Float)
	{
		if (!selectedSomethin)
		{
			if (controls.UP_P)
			{
				FlxG.sound.play('assets/sounds/scrollMenu' + TitleState.soundExt);
				changeItem(-1);
			}

			if (controls.DOWN_P)
			{
				FlxG.sound.play('assets/sounds/scrollMenu' + TitleState.soundExt);
				changeItem(1);
			}

			if (controls.BACK)
			{
				FlxG.switchState(new TitleState());
			}

			if (controls.ACCEPT)
			{
				if (optionShit[curSelected] == 'donate')
				{
					FlxG.openURL('https://ninja-muffin24.itch.io/funkin');
				}
				else
				{
					selectedSomethin = true;
					FlxG.sound.play('assets/sounds/confirmMenu' + TitleState.soundExt);

					FlxFlicker.flicker(magenta, 1.1, 0.15, false);

					menuItems.forEach(function(spr:FlxSprite)
					{
						if (curSelected != spr.ID)
						{
							FlxTween.tween(spr, {alpha: 0}, 0.4, {
								ease: FlxEase.quadOut,
								onComplete: function(twn:FlxTween)
								{
									spr.kill();
								}
							});
						}
						else
						{
							FlxFlicker.flicker(spr, 1, 0.06, false, false, function(flick:FlxFlicker)
							{
								var daChoice:String = optionShit[curSelected];

								switch (daChoice)
								{
									case 'story mode':
										FlxG.switchState(new StoryMenuState());
									case 'freeplay':
										FlxG.switchState(new FreeplayState());
								}
							});
						}
					});
				}
			}
		}

		super.update(elapsed);

		menuItems.forEach(function(spr:FlxSprite)
		{
			spr.screenCenter(X);
		});
	}

	function changeItem(huh:Int = 0)
	{
		curSelected += huh;

		if (curSelected >= menuItems.length)
			curSelected = 0;
		if (curSelected < 0)
			curSelected = menuItems.length - 1;

		menuItems.forEach(function(spr:FlxSprite)
		{
			spr.animation.play('idle');

			if (spr.ID == curSelected)
			{
				spr.animation.play('selected');
				camFollow.setPosition(spr.getGraphicMidpoint().x, spr.getGraphicMidpoint().y);
			}

			spr.updateHitbox();
		});
	}
}