extend <solid> functionality in stages (#633)

* extend <solid> functionality in stages

adds support for scroll(x/y), zoomfactor, and alpha to solids made in a stage xml  . because Why not

* better

---------

Co-authored-by: ⍚~Nex <87421482+NexIsDumb@users.noreply.github.com>

source/funkin/game/Stage.hx

@@ -93,17 +93,28 @@ class Stage extends FlxBasic implements IBeatReceiver {
 					case "box" | "solid":
 						if (!node.has.name || !node.has.width || !node.has.height) continue;
 
-						var spr = new FlxSprite(
+						var spr = new FunkinSprite(
 							(node.has.x) ? Std.parseFloat(node.att.x).getDefault(0) : 0,
 							(node.has.y) ? Std.parseFloat(node.att.y).getDefault(0) : 0
 						);
 
-						(node.name == "solid" ? spr.makeSolid : spr.makeGraphic)(
+						// just to make sure, its better to apply these before it gets inside of xmlUtil (because of mainly updateHitbox i guess), so im removing them before it gets passed  - Nex
+						var toRemove = ["x", "y", "width", "height", "color"];
+						var isSolid = node.name == "solid";
+
+						(isSolid ? spr.makeSolid : spr.makeGraphic)(
 							Std.parseInt(node.att.width),
 							Std.parseInt(node.att.height),
 							(node.has.color) ? CoolUtil.getColorFromDynamic(node.att.color) : -1
 						);
 
+						if (isSolid) toRemove.push("updateHitbox");  // makesolid already calls updateHitbox  - Nex
+						for (a in toRemove) node.x.remove(a);
+						XMLUtil.loadSpriteFromXML(spr, node, "", NONE, false);
+
+						if (!node.has.zoomfactor && PlayState.instance != null)
+							spr.initialZoom = PlayState.instance.defaultCamZoom;
+
 						stageSprites.set(node.getAtt("name"), spr);
 						state.add(spr);
 						spr;
@@ -318,4 +329,4 @@ typedef StageCharPosInfo = {
 	var y:Float;
 	var flip:Bool;
 	var scroll:Float;
-}
+}