make it compile on html5

source/funkin/backend/utils/AudioAnalyzer.hx

@@ -2,7 +2,9 @@ package funkin.backend.utils;
 
 import flixel.sound.FlxSound;
 import lime.media.AudioBuffer;
+#if !js
 import lime.utils.ArrayBufferView.ArrayBufferIO;
+#end
 import lime.utils.ArrayBuffer;
 
 #if (lime_cffi && lime_vorbis)
@@ -30,6 +32,7 @@ final class AudioAnalyzer {
 	 * @param wordSize How many bytes to get with to one byte (Usually it's bitsPerSample / 8 or bitsPerSample >> 3).
 	 * @return Byte from the audio buffer with specified position.
 	 */
+	#if sys
 	public static function getByte(buffer:ArrayBuffer, position:Int, wordSize:Int):Int {
 		if (wordSize == 2) return inline ArrayBufferIO.getInt16(buffer, position);
 		else if (wordSize == 3) {
@@ -40,6 +43,19 @@ final class AudioAnalyzer {
 		else if (wordSize == 4) return inline ArrayBufferIO.getInt32(buffer, position);
 		else return inline ArrayBufferIO.getUint8(buffer, position) - 128;
 	}
+	#elseif js
+	public static function getByte(buffer:lime.utils.UInt8Array, position:Int, wordSize:Int):Int {
+		var view = new lime.utils.DataView(buffer.buffer);
+		if (wordSize == 2) return inline view.getInt16(position, true);
+		else if (wordSize == 3) {
+			var b = inline view.getUint16(position, true) | (view.getUint8(position + 2) << 16);
+			if (b & 0x800000 != 0) return b - 0x1000000;
+			else return b;
+		}
+		else if (wordSize == 4) return inline view.getInt32(position, true);
+		else return inline view.getUint8(position) - 128;
+	}
+	#end
 
 	/**
 	 * Gets levels from the frequencies with specified sample rate.
@@ -450,12 +466,16 @@ final class AudioAnalyzer {
 	}
 
 	inline function __readData(startPos:Float, endPos:Float, callback:AudioAnalyzerCallback) {
-		var pos = Math.floor(startPos * __toBits), end = Math.min(Math.floor(endPos * __toBits), buffer.data.buffer.length), c = 0;
+		var pos = Math.floor(startPos * __toBits), end = Math.min(Math.floor(endPos * __toBits), buffer.data.buffer.byteLength), c = 0;
 		pos -= pos % __sampleSize;
 		end -= end % __sampleSize;
 
 		while (pos < end) {
+			#if sys
 			callback(getByte(buffer.data.buffer, pos, __wordSize), c);
+			#elseif js
+			callback(getByte(buffer.data, pos, __wordSize), c);
+			#end
 			if (++c > buffer.channels) c = 0;
 			pos += __wordSize;
 		}

source/funkin/backend/utils/CoolUtil.hx

@@ -1,5 +1,6 @@
 package funkin.backend.utils;
 
+import lime.utils.AssetType;
 #if cpp
 import cpp.Float64;
 #end
@@ -1240,9 +1241,9 @@ final class CoolUtil
 	 * @return Bool
 	 */
 	public static function imageHasFrameData(path:String):String {
-		if (FileSystem.exists(Path.withExtension(path, "xml"))) return "xml";
-		if (FileSystem.exists(Path.withExtension(path, "txt"))) return "txt";
-		if (FileSystem.exists(Path.withExtension(path, "json"))) return "json";
+		if (Paths.assetsTree.existsSpecific(Path.withExtension(path, "xml"), AssetType.TEXT)) return "xml";
+		if (Paths.assetsTree.existsSpecific(Path.withExtension(path, "txt"), AssetType.TEXT)) return "txt";
+		if (Paths.assetsTree.existsSpecific(Path.withExtension(path, "json"), AssetType.TEXT)) return "json";
 
 		return null;
 	}

source/funkin/backend/utils/ThreadUtil.hx

@@ -1,5 +1,8 @@
 package funkin.backend.utils;
 
+#if !macro
+import funkin.backend.system.Logs;
+#end
 #if (target.threaded)
 import sys.thread.Deque;
 import sys.thread.Thread;
@@ -8,9 +11,6 @@ import sys.thread.Mutex;
 private typedef Thread = Dynamic;
 #end
 
-#if !macro
-import funkin.backend.system.Logs;
-#end
 
 final class ThreadUtil {
 	inline static function error(text:String) {

source/funkin/backend/utils/TranslationUtil.hx

@@ -254,6 +254,7 @@ final class TranslationUtil
 
 		// todo make it load the default languages in a second string map
 
+		#if MOD_SUPPORT
 		for(mod in ModsFolder.getLoadedModsLibs(true)) for(file in mod.getFiles("assets/" + mainPath).sortAlphabetically().map((v)->'$mainPath/$v')) {
 			if(Path.extension(file).toLowerCase() != "xml") continue;
 
@@ -277,6 +278,7 @@ final class TranslationUtil
 
 			parseXml(langNode, prefix);
 		}
+		#end
 
 		for(pair in translations) {
 			var node = pair.node;