fix: TileMap culling did not work properly when using fixed updates l…

…ower than refresh rate

CHANGELOG.md

@@ -40,6 +40,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 
 ### Fixed
 
+- Fixed issue where `ex.TileMap` culling did not work properly when using fixed updates lower than refresh rate
 - Fixed incomplete types for font options in `ex.FontSource().toFont(options)`
 - Fixed issue with `ex.Loader` start button position when using CSS transforms
 - Fixed issue where adding scenes with the same name did not work when it was previously removed

src/engine/Screen.ts

@@ -758,7 +758,7 @@ export class Screen {
       Vector.Half)
       .scale(vec(1/this._camera.zoom, 1/this._camera.zoom))
       .rotate(this._camera.rotation)
-      .translate(this._camera.pos);
+      .translate(this._camera.drawPos);
     return bounds;
   }
 

src/spec/ParallaxSpec.ts

@@ -25,6 +25,7 @@ describe('A Parallax Component', () => {
     const game = TestUtils.engine({width: 500, height: 500}, ['use-canvas-context']);
     await TestUtils.runToReady(game);
     game.currentScene.camera.pos = ex.vec(0, 0);
+    game.currentScene.camera.drawPos = ex.vec(0, 0);
 
     const clock = game.clock as ex.TestClock;
 
@@ -33,19 +34,22 @@ describe('A Parallax Component', () => {
     game.add(actor);
 
     game.currentScene.camera.pos = ex.vec(100, 100);
+    game.currentScene.camera.drawPos = ex.vec(100, 100);
     expect(game.currentScene.camera.pos).toBeVector(ex.vec(100, 100));
 
     clock.step(16);
     await expectAsync(game.canvas).toEqualImage('src/spec/images/ParallaxSpec/parallax1.png');
     expect(actor.hasTag('ex.offscreen')).toBeFalse();
 
     game.currentScene.camera.pos = ex.vec(520, 520);
+    game.currentScene.camera.drawPos = ex.vec(520, 520);
     clock.step();
     expect(game.currentScene.camera.pos).toBeVector(ex.vec(520, 520));
     await expectAsync(game.canvas).toEqualImage('src/spec/images/ParallaxSpec/parallax2.png');
     expect(actor.hasTag('ex.offscreen')).toBeFalse();
 
     game.currentScene.camera.pos = ex.vec(620, 620);
+    game.currentScene.camera.drawPos = ex.vec(620, 620);
     clock.step();
     expect(game.currentScene.camera.pos).toBeVector(ex.vec(620, 620));
     expect(actor.hasTag('ex.offscreen')).toBeTrue();