Improve the ShapeRenderer class

Use a copy of the old transform to avoid floating point precision errors Apply the supplied transforms on top of the existing transform
gurkenlabs · Nov 24, 2018 · ca5947d · ca5947d
1 parent 34ad0b2
commit ca5947d
Showing 1 changed file with 4 additions and 3 deletions.
diff --git a/src/de/gurkenlabs/litiengine/graphics/ShapeRenderer.java b/src/de/gurkenlabs/litiengine/graphics/ShapeRenderer.java
@@ -18,9 +18,10 @@ public static void render(final Graphics2D g, final Shape shape) {
   }
 
   public static void render(final Graphics2D g, final Shape shape, double x, double y) {
+    AffineTransform oldTransform = g.getTransform();
     g.translate(x, y);
     render(g, shape);
-    g.translate(-x, -y);
+    g.setTransform(oldTransform);
   }
 
   public static void render(final Graphics2D g, final Shape shape, Point2D location) {
@@ -44,7 +45,7 @@ public static void renderOutline(final Graphics2D g, final Shape shape, final St
 
   public static void renderTransformed(final Graphics2D g, final Shape shape, AffineTransform transform) {
     final AffineTransform oldTransForm = g.getTransform();
-    g.setTransform(transform);
+    g.transform(transform);
     render(g, shape);
     g.setTransform(oldTransForm);
   }
@@ -55,7 +56,7 @@ public static void renderOutlineTransformed(final Graphics2D g, final Shape shap
 
   public static void renderOutlineTransformed(final Graphics2D g, final Shape shape, AffineTransform transform, final Stroke stroke) {
     final AffineTransform oldTransForm = g.getTransform();
-    g.setTransform(transform);
+    g.transform(transform);
     renderOutline(g, shape, stroke);
     g.setTransform(oldTransForm);
   }