use view bounds in drawTriangles (#3484)

Author: richTrash21

flixel/FlxCamera.hx

@@ -832,13 +832,13 @@ class FlxCamera extends FlxBasic
 	public function drawTriangles(graphic:FlxGraphic, vertices:DrawData<Float>, indices:DrawData<Int>, uvtData:DrawData<Float>, ?colors:DrawData<Int>,
 			?position:FlxPoint, ?blend:BlendMode, repeat:Bool = false, smoothing:Bool = false, ?transform:ColorTransform, ?shader:FlxShader):Void
 	{
+		final cameraBounds = _bounds.set(viewMarginLeft, viewMarginTop, viewWidth, viewHeight);
+		
 		if (FlxG.renderBlit)
 		{
 			if (position == null)
 				position = renderPoint.set();
 
-			_bounds.set(0, 0, width, height);
-
 			var verticesLength:Int = vertices.length;
 			var currentVertexPosition:Int = 0;
 
@@ -869,7 +869,7 @@ class FlxCamera extends FlxBasic
 
 			position.putWeak();
 
-			if (!_bounds.overlaps(bounds))
+			if (!cameraBounds.overlaps(bounds))
 			{
 				drawVertices.splice(drawVertices.length - verticesLength, verticesLength);
 			}
@@ -907,17 +907,16 @@ class FlxCamera extends FlxBasic
 		}
 		else
 		{
-			_bounds.set(0, 0, width, height);
 			var isColored:Bool = (colors != null && colors.length != 0);
 
 			#if !flash
 			var hasColorOffsets:Bool = (transform != null && transform.hasRGBAOffsets());
 			isColored = isColored || (transform != null && transform.hasRGBMultipliers());
 			var drawItem:FlxDrawTrianglesItem = startTrianglesBatch(graphic, smoothing, isColored, blend, hasColorOffsets, shader);
-			drawItem.addTriangles(vertices, indices, uvtData, colors, position, _bounds, transform);
+			drawItem.addTriangles(vertices, indices, uvtData, colors, position, cameraBounds, transform);
 			#else
 			var drawItem:FlxDrawTrianglesItem = startTrianglesBatch(graphic, smoothing, isColored, blend);
-			drawItem.addTriangles(vertices, indices, uvtData, colors, position, _bounds);
+			drawItem.addTriangles(vertices, indices, uvtData, colors, position, cameraBounds);
 			#end
 		}
 	}
@@ -1108,7 +1107,7 @@ class FlxCamera extends FlxBasic
 			_helperPoint = null;
 		}
 
-		_bounds = null;
+		_bounds = FlxDestroyUtil.put(_bounds);
 		scroll = FlxDestroyUtil.put(scroll);
 		targetOffset = FlxDestroyUtil.put(targetOffset);
 		deadzone = FlxDestroyUtil.put(deadzone);