constants macros: reset(), init() and @:lazy

Co-Authored-By: Ne_Eo <NeeEoo@users.noreply.github.com>

source/funkin/Constants.hx

@@ -6,10 +6,17 @@ import flixel.util.FlxColor;
 
 using StringTools;
 
+@:build(funkin.backend.system.macros.ConstantsMacro.build())
 class Constants {
+	// these arent good since someone could easily change through meta.set()  - Nex
+	// @:lazy public static var WINDOW_TITLE:String = Application.current.meta.get('name');
+	// @:lazy public static var BUILD_FILENAME:String = Application.current.meta.get('file');
+	// @:lazy public static var VERSION:String = Application.current.meta.get('version');
+
 	public static var COMMIT_NUMBER = GitCommitMacro.commitNumber;
 	public static var COMMIT_HASH = GitCommitMacro.commitHash;
 	public static var COMMIT_MESSAGE = 'Commit $COMMIT_NUMBER ($COMMIT_HASH)';
+	@:lazy public static var VERSION_MESSAGE:String = 'Codename Engine v${Application.current.meta.get('version')}';
 
 	public static var REPO_NAME = "CodenameEngine";
 	public static var REPO_OWNER = "FNF-CNE-Devs";

source/funkin/backend/system/MainState.hx

@@ -17,9 +17,13 @@ class MainState extends FlxState {
 	public static var betaWarningShown:Bool = false;
 	public override function create() {
 		super.create();
-		if (!initiated)
+		if (!initiated) {
 			Main.loadGameSettings();
+			Constants.init();
+		}
+
 		initiated = true;
+		Constants.reset();
 
 		#if sys
 		CoolUtil.deleteFolder('./.temp/'); // delete temp folder

source/funkin/backend/system/macros/ConstantsMacro.hx

@@ -0,0 +1,65 @@
+package funkin.backend.system.macros;
+
+#if macro
+import haxe.macro.Context;
+import haxe.macro.Expr;
+#end
+
+class ConstantsMacro {
+	#if macro
+	static function build() {
+		var fields = Context.getBuildFields();
+
+		var resetFields:Array<Expr> = [];
+		var lazyFields:Array<Expr> = [];
+		for(field in fields) {
+			switch(field.kind) {
+				case FVar(t, e):
+					resetFields.push(macro $i{field.name} = ${e});
+
+					var hasLazy = false;
+					for(meta in field.meta) {
+						if(meta.name == ":lazy") {
+							hasLazy = true;
+							break;
+						}
+					}
+
+					if(hasLazy) {
+						lazyFields.push(macro $i{field.name} = ${e});
+						field.kind = FVar(t, null);
+					}
+				default:
+			}
+		}
+
+		fields.push({
+			name: "reset",
+			pos: Context.currentPos(),
+			access: [APublic, AStatic],
+			kind: FFun({
+				args: [],
+				ret: null,
+				expr: macro {
+					$b{resetFields}
+				}
+			})
+		});
+
+		fields.push({
+			name: "init",
+			pos: Context.currentPos(),
+			access: [APublic, AStatic],
+			kind: FFun({
+				args: [],
+				ret: null,
+				expr: macro {
+					$b{lazyFields}
+				}
+			})
+		});
+
+		return fields;
+	}
+	#end
+}

source/funkin/backend/system/updating/UpdateUtil.hx

@@ -22,7 +22,7 @@ class UpdateUtil {
 	}
 
 	public static function checkForUpdates():UpdateCheckCallback {
-		var curTag = 'v${Constants.VERSION}';
+		var curTag = 'v${Application.current.meta.get('version')}';
 		trace(curTag);
 
 		var error = false;

source/funkin/editors/charter/ChartCreationScreen.hx

@@ -1,6 +1,5 @@
 package funkin.editors.charter;
 
-import haxe.macro.Expr.Constant;
 import flixel.text.FlxText.FlxTextFormat;
 import flixel.text.FlxText.FlxTextFormatMarkerPair;
 import funkin.backend.chart.ChartData;

source/funkin/game/Character.hx

@@ -429,9 +429,10 @@ class Character extends FunkinSprite implements IBeatReceiver implements IOffset
 	@:noCompletion private function get_danceInterval()
 		return beatInterval;
 
-
+	// these wont update when you change the constants!!! they just start from the constant for qol if we'll ever edit them in the future  - Nex
 	public static var FALLBACK_CHARACTER:String = Constants.DEFAULT_CHARACTER;
 	public static var FALLBACK_DEAD_CHARACTER:String = Constants.DEFAULT_GAMEOVER_CHARACTER;
+
 	public static function getXMLFromCharName(character:OneOfTwo<String, Character>):Access {
 		var char:Character = null;
 		if (character is Character) {

source/funkin/game/Note.hx

@@ -86,7 +86,7 @@ class Note extends FlxSprite
 		return PlayState.instance.getNoteType(noteTypeID);
 	}
 
-	public static var swagWidth:Float = 160 * 0.7;
+	public static var swagWidth:Float = 160 * 0.7; // TODO: remove this
 
 	private static var __customNoteTypeExists:Map<String, Bool> = [];
 

source/funkin/game/cutscenes/VideoCutscene.hx

@@ -92,7 +92,7 @@ class VideoCutscene extends Cutscene {
 
 			// ZIP PATH: EXPORT
 			// TODO: this but better and more ram friendly
-			localPath = './.temp/video-${curVideo++}.${Constants.VIDEO_EXT}';
+			localPath = './.temp/video-${curVideo++}.${Path.extension(path)}';
 			Main.execAsync(function() {
 				File.saveBytes(localPath, Assets.getBytes(path));
 				videoReady = true;

source/funkin/menus/MainMenuState.hx

@@ -72,7 +72,7 @@ class MainMenuState extends MusicBeatState
 
 		FlxG.camera.follow(camFollow, null, 0.06);
 
-		versionText = new FunkinText(5, FlxG.height - 2, 0, 'Codename Engine v${Application.current.meta.get('version')}\n${Constants.COMMIT_MESSAGE}\n[${controls.getKeyName(SWITCHMOD)}] Open Mods menu\n');
+		versionText = new FunkinText(5, FlxG.height - 2, 0, '${Constants.VERSION_MESSAGE}\n${Constants.COMMIT_MESSAGE}\n[${controls.getKeyName(SWITCHMOD)}] Open Mods menu\n');
 		versionText.y -= versionText.height;
 		versionText.scrollFactor.set();
 		add(versionText);