From be059c533a355befdc76d74ed021359b3ecba1a8 Mon Sep 17 00:00:00 2001
From: lunarcleint <xenovhub@gmail.com>
Date: Sun, 29 Dec 2024 01:35:01 -0700
Subject: [PATCH] resizablable charter

---
 source/funkin/editors/charter/Charter.hx | 25 ++++++++++-
 source/funkin/editors/ui/UIScaleMode.hx  | 55 ++++++++++++++++++++++++
 source/funkin/editors/ui/UIState.hx      | 28 ++++++++++++
 3 files changed, 106 insertions(+), 2 deletions(-)
 create mode 100644 source/funkin/editors/ui/UIScaleMode.hx

diff --git a/source/funkin/editors/charter/Charter.hx b/source/funkin/editors/charter/Charter.hx
index 842c0615..b4080049 100644
--- a/source/funkin/editors/charter/Charter.hx
+++ b/source/funkin/editors/charter/Charter.hx
@@ -550,7 +550,7 @@ class Charter extends UIState {
 			Framerate.memoryCounter.alpha = 0.4;
 			Framerate.codenameBuildField.alpha = 0.4;
 		}
-		updateDisplaySprites();
+		UIState.setResolutionAware();
 
 		// ! IF YOU EVER WANNA VIEW IN THE FUTURE, JUST USE A FLXSPRITE :D -lunar
 		/*var dataDisplay:FlxSprite = new FlxSprite().loadGraphic(waveformHandler.waveDatas.get("Voices.ogg"));
@@ -1355,7 +1355,10 @@ class Charter extends UIState {
 	function updateDisplaySprites() {
 		gridBackdrops.strumlinesAmount = strumLines.members.length;
 
-		charterBG.scale.set(1 / charterCamera.zoom, 1 / charterCamera.zoom);
+		charterBG.scale.set(
+			(1 / charterCamera.zoom) * (FlxG.width/charterBG.width),
+			(1 / charterCamera.zoom) * (FlxG.height/charterBG.height)
+		);
 
 		strumlineInfoBG.scale.set(FlxG.width / charterCamera.zoom, 1);
 		strumlineInfoBG.updateHitbox();
@@ -1369,6 +1372,24 @@ class Charter extends UIState {
 		strumlineLockButton.y = strumlineInfoBG.y;
 	}
 
+	public override function onResize(width:Int, height:Int) {
+		super.onResize(width, height);
+
+		if (width < FlxG.initialWidth || height < FlxG.initialHeight) {
+			width = FlxG.initialWidth; height = FlxG.initialHeight;
+		}
+
+		scrollBar.x = width - 20;
+		scrollBar.scale.y = Std.int(height - scrollBar.y);
+		scrollBar.updateHitbox();
+
+		songPosInfo.x = width - 30 - 400;
+		playBackSlider.x = width - 160 - 26 - 20;
+
+		updateDisplaySprites();
+		charterBG.screenCenter();
+	}
+
 	var zoom(default, set):Float = 0;
 	var __camZoom(default, set):Float = 1;
 	function set_zoom(val:Float) {
diff --git a/source/funkin/editors/ui/UIScaleMode.hx b/source/funkin/editors/ui/UIScaleMode.hx
new file mode 100644
index 00000000..5d67bc7c
--- /dev/null
+++ b/source/funkin/editors/ui/UIScaleMode.hx
@@ -0,0 +1,55 @@
+package funkin.editors.ui;
+
+import flixel.system.scaleModes.StageSizeScaleMode;
+
+class UIScaleMode extends StageSizeScaleMode {
+	override public function onMeasure(Width:Int, Height:Int):Void {
+		if (Width < FlxG.initialWidth || Height < FlxG.initialHeight) {
+			@:privateAccess {
+				FlxG.width = FlxG.initialWidth;
+				FlxG.height = FlxG.initialHeight;
+			}
+	
+			updateGameSize(Width, Height);
+			updateDeviceSize(Width, Height);
+			updateScaleOffset();
+			updateGamePosition();
+		} else {
+			super.onMeasure(Width, Height);
+
+			for (camera in FlxG.cameras.list) {
+				camera.width = Width;
+				camera.height = Height;
+			}
+		}
+	}
+
+	override function updateGameSize(Width:Int, Height:Int):Void
+	{
+		var ratio:Float = FlxG.width / FlxG.height;
+		var realRatio:Float = Width / Height;
+
+		var scaleY:Bool = realRatio < ratio;
+
+		if (scaleY)
+		{
+			gameSize.x = Width;
+			gameSize.y = Math.floor(gameSize.x / ratio);
+		}
+		else
+		{
+			gameSize.y = Height;
+			gameSize.x = Math.floor(gameSize.y * ratio);
+		}
+
+		@:privateAccess {
+			for(camera in FlxG.cameras.list) {
+				camera.width = FlxG.initialWidth;
+				camera.height = FlxG.initialHeight;
+			}
+
+			FlxG.width = FlxG.initialWidth;
+			FlxG.height = FlxG.initialHeight;
+		}
+	}
+}
\ No newline at end of file
diff --git a/source/funkin/editors/ui/UIState.hx b/source/funkin/editors/ui/UIState.hx
index 34be9f9e..f56c158c 100644
--- a/source/funkin/editors/ui/UIState.hx
+++ b/source/funkin/editors/ui/UIState.hx
@@ -1,5 +1,6 @@
 package funkin.editors.ui;
 
+import openfl.Lib;
 import funkin.editors.ui.notifications.UIBaseNotification;
 import flixel.math.FlxPoint;
 import flixel.math.FlxRect;
@@ -9,6 +10,7 @@ import funkin.editors.ui.UIContextMenu.UIContextMenuCallback;
 import funkin.editors.ui.UIContextMenu.UIContextMenuOption;
 import lime.ui.KeyCode;
 import lime.ui.KeyModifier;
+import flixel.system.scaleModes.StageSizeScaleMode;
 import openfl.ui.Mouse;
 import openfl.ui.MouseCursor;
 
@@ -117,6 +119,16 @@ class UIState extends MusicBeatState {
 	}
 
 	public override function destroy() {
+		if (resolutionAware) {
+			resolutionAware = false;
+
+			for (camera in FlxG.cameras.list) {
+				camera.width = FlxG.initialWidth;
+				camera.height = FlxG.initialHeight;
+			}
+			FlxG.scaleMode = Main.scaleMode;
+		}
+
 		super.destroy();
 		__mousePos.put();
 
@@ -164,4 +176,20 @@ class UIState extends MusicBeatState {
 		//notification.appearAnimation();
 		//FlxTween.tween(notification, {x: __mousePos.x, y: __mousePos.y, alpha: 1}, .3, {ease: FlxEase.circInOut});
 	}
+
+	public static var resolutionAware:Bool = false;
+	public static var uiScaleMode:UIScaleMode = new UIScaleMode();
+
+	public static function setResolutionAware() {
+		resolutionAware = true;
+		FlxG.scaleMode = uiScaleMode;
+	}
+
+	public override function onResize(width:Int, height:Int) {
+		super.onResize(width, height);
+
+		if (!resolutionAware) return;
+
+		trace(width, height);
+	}
 }
\ No newline at end of file