Improve performance of debug drawing

flixel/FlxObject.hx

@@ -5,6 +5,7 @@ import flixel.math.FlxPoint;
 import flixel.math.FlxRect;
 import flixel.math.FlxVelocity;
 import flixel.path.FlxPath;
+import flixel.system.debug.FlxDebugDrawGraphic;
 import flixel.tile.FlxBaseTilemap;
 import flixel.util.FlxAxes;
 import flixel.util.FlxColor;
@@ -1274,11 +1275,10 @@ class FlxObject extends FlxBasic
 
 	}
 
-	function drawDebugBoundingBoxColor(gfx:Graphics, rect:FlxRect, color:FlxColor)
+	function drawDebugBoundingBoxColor(gfx:FlxDebugDrawGraphic, rect:FlxRect, color:FlxColor)
 	{
-		// fill static graphics object with square shape
-		gfx.lineStyle(1, color, 0.75);
-		gfx.drawRect(rect.x + 0.5, rect.y + 0.5, rect.width - 1.0, rect.height - 1.0);
+		color.alphaFloat = 0.75;
+		gfx.drawBoundingBox(rect.x, rect.y, rect.width, rect.height, color, 1.0);
 	}
 
 	inline function beginDrawDebug(camera:FlxCamera):Graphics

flixel/path/FlxBasePath.hx

@@ -4,6 +4,7 @@ import flixel.FlxBasic;
 import flixel.FlxG;
 import flixel.FlxObject;
 import flixel.math.FlxPoint;
+import flixel.system.debug.FlxDebugDrawGraphic;
 import flixel.util.FlxAxes;
 import flixel.util.FlxColor;
 import flixel.util.FlxDestroyUtil;
@@ -396,25 +397,18 @@ class FlxTypedBasePath<TTarget:FlxBasic> extends FlxBasic implements IFlxDestroy
 		return result;
 	}
 
-	inline function drawNode(gfx:Graphics, node:FlxPoint, size:Int, color:FlxColor)
+	inline function drawNode(gfx:FlxDebugDrawGraphic, node:FlxPoint, size:Int, color:FlxColor)
 	{
-		gfx.beginFill(color.rgb, color.alphaFloat);
-		gfx.lineStyle();
-		final offset = Math.floor(size * 0.5);
-		gfx.drawRect(node.x - offset, node.y - offset, size, size);
-		gfx.endFill();
+		final offset = size * 0.5;
+		gfx.drawRect(node.x - offset, node.y - offset, size, size, color);
 	}
 
-	function drawLine(gfx:Graphics, node1:FlxPoint, node2:FlxPoint)
+	function drawLine(gfx:FlxDebugDrawGraphic, p1:FlxPoint, p2:FlxPoint)
 	{
-		// then draw a line to the next node
 		final color = debugDrawData.lineColor;
 		final size = debugDrawData.lineSize;
-		gfx.lineStyle(size, color.rgb, color.alphaFloat);
-
-		final lineOffset = debugDrawData.lineSize / 2;
-		gfx.moveTo(node1.x + lineOffset, node1.y + lineOffset);
-		gfx.lineTo(node2.x + lineOffset, node2.y + lineOffset);
+		final half = debugDrawData.lineSize / 2;
+		gfx.drawLine(p1.x + half, p1.y + half, p2.x + half, p2.y + half, color, size);
 	}
 	#end
 }

flixel/system/debug/FlxDebugDrawGraphic.hx

@@ -0,0 +1,49 @@
+package flixel.system.debug;
+
+import flixel.FlxG;
+import flixel.math.FlxPoint;
+import flixel.util.FlxColor;
+import openfl.display.Graphics;
+
+abstract FlxDebugDrawGraphic(Graphics) from Graphics to Graphics
+{
+	inline function useHardware(sizeSquared:Float)
+	{
+		return FlxG.renderTile && sizeSquared > 100 * 100;
+	}
+
+	public function drawBoundingBox(x:Float, y:Float, width:Float, height:Float, color:FlxColor, thickness = 1.0)
+	{
+		if (useHardware(width * height))
+		{
+			this.beginFill(color.rgb, color.alphaFloat);
+			this.drawRect(x, y, thickness, height); // left
+			this.drawRect(x + thickness, y, width - thickness * 2, thickness); // top
+			this.drawRect(x + width - thickness, y, thickness, height); // right
+			this.drawRect(x + thickness, y + height - thickness, width - thickness * 2, thickness); // bottom
+			this.endFill();
+		}
+		else
+		{
+			this.lineStyle(thickness, color.rgb, color.alphaFloat);
+			final half = thickness * 0.5;
+
+			this.drawRect(x + half, y + half, width - thickness, height - thickness);
+		}
+	}
+
+	public function drawLine(x1:Float, y1:Float, x2:Float, y2:Float, color:FlxColor, thickness = 1.0)
+	{
+		this.lineStyle(thickness, color.rgb, color.alphaFloat);
+
+		this.moveTo(x1, y1);
+		this.lineTo(x2, y2);
+	}
+
+	public function drawRect(x:Float, y:Float, width:Float, height:Float, color:FlxColor)
+	{
+		this.beginFill(color.rgb, color.alphaFloat);
+		this.drawRect(x, y, width, height);
+		this.endFill();
+	}
+}

flixel/tile/FlxTilemap.hx

@@ -14,8 +14,8 @@ import flixel.math.FlxMath;
 import flixel.math.FlxMatrix;
 import flixel.math.FlxPoint;
 import flixel.math.FlxRect;
-import flixel.system.FlxAssets.FlxShader;
-import flixel.system.FlxAssets.FlxTilemapGraphicAsset;
+import flixel.system.FlxAssets;
+import flixel.system.debug.FlxDebugDrawGraphic;
 import flixel.util.FlxColor;
 import flixel.util.FlxDestroyUtil;
 import flixel.util.FlxDirectionFlags;