edit sprite (pls test i need alot, kinda buggy)

source/funkin/backend/utils/CoolUtil.hx

@@ -1,5 +1,6 @@
 package funkin.backend.utils;
 
+import flxanimate.data.AnimationData.AnimAtlas;
 import flixel.graphics.FlxGraphic;
 import openfl.display.BitmapData;
 import flixel.graphics.frames.FlxAtlasFrames;
@@ -42,6 +43,8 @@ import haxe.xml.Access;
 import lime.utils.Assets;
 import openfl.geom.ColorTransform;
 import flixel.math.FlxPoint;
+import haxe.Constraints.IMap;
+import haxe.EnumTools.EnumValueTools;
 
 using StringTools;
 
@@ -1168,6 +1171,113 @@ final class CoolUtil
 
 		return animsList;
 	}
+
+	public static function getAnimsListFromAtlas(atlas:AnimAtlas):Array<String> {
+		if (atlas == null) return [];
+
+		var animsList:Array<String> = [];
+		if (atlas.AN.SN != null) animsList.push(atlas.AN.SN);
+		if (atlas.SD != null)
+			for (symbol in atlas.SD.S)
+				if (symbol.SN != null) animsList.push(symbol.SN);
+
+		return animsList;
+	}
+
+	// TODO: check this for bugs
+	// Code from https://github.com/elnabo/equals/blob/master/src/equals/Equal.hx, (MIT License), but updated to work with haxe 4
+	public static function deepEqual<T> (a:T, b:T) : Bool {
+		if (a == b) { return true; } // if physical equality
+		if (isNull(a) ||  isNull(b)) {
+			return false;
+		}
+
+		switch (Type.typeof(a)) {
+			case TNull, TInt, TBool, TUnknown:
+				return a == b;
+			case TFloat:
+				return Math.isNaN(cast a) && Math.isNaN(cast b); // only valid true result remaining
+			case TFunction:
+				return Reflect.compareMethods(a, b); // only physical equality can be tested for function
+			case TEnum(_):
+				if (EnumValueTools.getIndex(cast a) != EnumValueTools.getIndex(cast b)) {
+					return false;
+				}
+				var a_args = EnumValueTools.getParameters(cast a);
+				var b_args = EnumValueTools.getParameters(cast b);
+				return deepEqual(a_args, b_args);
+			case TClass(_):
+				if ((a is String) && (b is String)) {
+					return a == b;
+				}
+				if ((a is Array) && (b is Array)) {
+					var a = cast(a, Array<Dynamic>);
+					var b = cast(b, Array<Dynamic>);
+					if (a.length != b.length) { return false; }
+					for (i in 0...a.length) {
+						if (!deepEqual(a[i], b[i])) {
+							return false;
+						}
+					}
+					return true;
+				}
+
+				if ((a is IMap) && (b is IMap)) {
+					var a = cast(a, IMap<Dynamic, Dynamic>);
+					var b = cast(b, IMap<Dynamic, Dynamic>);
+					var a_keys = [ for (key in a.keys()) key ];
+					var b_keys = [ for (key in b.keys()) key ];
+					a_keys.sort(Reflect.compare);
+					b_keys.sort(Reflect.compare);
+					if (!deepEqual(a_keys, b_keys)) { return false; }
+					for (key in a_keys) {
+						if (!deepEqual(a.get(key), b.get(key))) {
+							return false;
+						}
+					}
+					return true;
+				}
+
+				if ((a is Date) && (b is Date)) {
+					return cast(a, Date).getTime() == cast(b, Date).getTime();
+				}
+
+				if ((a is haxe.io.Bytes) && (b is haxe.io.Bytes)) {
+					return deepEqual(cast(a, haxe.io.Bytes).getData(), cast(b, haxe.io.Bytes).getData());
+				}
+
+			case TObject:
+		}
+
+		for (field in Reflect.fields(a)) {
+			var pa = Reflect.field(a, field);
+			var pb = Reflect.field(b, field);
+			if (isFunction(pa)) {
+				// ignore function as only physical equality can be tested, unless null
+				if (isNull(pa) != isNull(pb)) {
+					return false;
+				}
+				continue;
+			}
+			if (!deepEqual(pa, pb)) {
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+	static inline function isNull(a:Dynamic):Bool {
+		return Type.enumEq(Type.typeof(a), TNull);
+	}
+
+	static inline function isFunction(a:Dynamic):Bool {
+		return Type.enumEq(Type.typeof(a), TFunction);
+	}
+
+	public static inline function isMapEmpty<K, V>(map: Map<K, V>): Bool {
+		return !map.keys().hasNext();
+	}
 }
 
 /**