| Index: sky/examples/game/lib/game_world.dart
|
| diff --git a/sky/examples/game/lib/game_world.dart b/sky/examples/game/lib/game_world.dart
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..69de04579ce8cf7ceff5858f544f5fdbe09342b4
|
| --- /dev/null
|
| +++ b/sky/examples/game/lib/game_world.dart
|
| @@ -0,0 +1,93 @@
|
| +part of game;
|
| +
|
| +class GameWorld extends TransformNode {
|
| +
|
| + World world;
|
| + List<Body> bodies = [];
|
| + Image _image;
|
| +
|
| + GameWorld(double width, double height) {
|
| + this.width = width;
|
| + this.height = height;
|
| +
|
| + world = new World.withGravity(new Vector2(0.0, 0.0));
|
| +
|
| + // Load and add background
|
| + Image imgBg = new Image()..src="https://raw.githubusercontent.com/slembcke/GalacticGuardian.spritebuilder/GDC/Packages/SpriteBuilder%20Resources.sbpack/resources-auto/BurnTexture.png";
|
| + SpriteNode sprtBg = new SpriteNode.withImage(imgBg);
|
| + sprtBg.width = width;
|
| + sprtBg.height = height;
|
| + sprtBg.pivot = new Vector2(0.0, 0.0);
|
| + this.children.add(sprtBg);
|
| +
|
| + // Load asteroid image
|
| + _image = new Image()..src="https://raw.githubusercontent.com/slembcke/GalacticGuardian.spritebuilder/GDC/Packages/SpriteBuilder%20Resources.sbpack/Sprites/resources-auto/asteroid_big_002.png";
|
| + }
|
| +
|
| + void addAsteroid([double radius=20.0]) {
|
| +
|
| + // Create shape
|
| + final CircleShape shape = new CircleShape();
|
| + shape.radius = radius;
|
| +
|
| + // Define fixture (links body and shape)
|
| + final FixtureDef activeFixtureDef = new FixtureDef();
|
| + activeFixtureDef.restitution = 1.0;
|
| + activeFixtureDef.density = 0.05;
|
| + activeFixtureDef.shape = shape;
|
| +
|
| + // Define body
|
| + final BodyDef bodyDef = new BodyDef();
|
| + bodyDef.type = BodyType.DYNAMIC;
|
| + bodyDef.position = new Vector2(0.0, 30.0);
|
| + bodyDef.linearDamping = 0.0;
|
| + bodyDef.angularDamping = 0.0;
|
| +
|
| + // Create body and fixture from definitions
|
| + final Body body = world.createBody(bodyDef);
|
| + body.createFixtureFromFixtureDef(activeFixtureDef);
|
| +
|
| + // Set position of object
|
| + Math.Random rand = new Math.Random();
|
| + body.setTransform(new Vector2(rand.nextDouble() * this.width, rand.nextDouble() * this.height), 0.0);
|
| + body.applyLinearImpulse(new Vector2(rand.nextDouble()*10000.0-5000.0, rand.nextDouble()*10000.0-5000.0), new Vector2(0.0, 0.0), true);
|
| +
|
| + // Add to list
|
| + bodies.add(body);
|
| +
|
| + SpriteNode sprt = new SpriteNode.withImage(_image);
|
| + sprt.width = radius*2;
|
| + sprt.height = radius*2;
|
| + body.userData = sprt;
|
| + this.children.add(sprt);
|
| + }
|
| +
|
| + void update(double dt) {
|
| + world.stepDt(1.0/60.0, 10, 10); // Pass in dt
|
| +
|
| + bodies.forEach(updateBody);
|
| + }
|
| +
|
| + void updateBody(Body body) {
|
| + SpriteNode sprt = body.userData;
|
| + double rot = 0.0; //body.getRotation();
|
| +
|
| + // Check bounds and warp objects
|
| + if (body.position[0] < -sprt.width/2) {
|
| + body.setTransform(new Vector2(body.position[0] + this.width + sprt.width, body.position[1]), rot);
|
| + }
|
| + if (body.position[0] > this.width + sprt.width/2) {
|
| + body.setTransform(new Vector2(body.position[0] - (this.width + sprt.width), body.position[1]), rot);
|
| + }
|
| + if (body.position[1] < -sprt.height/2) {
|
| + body.setTransform(new Vector2(body.position[0], body.position[1] + this.height + sprt.height), rot);
|
| + }
|
| + if (body.position[1] > this.height + sprt.height/2) {
|
| + body.setTransform(new Vector2(body.position[0], body.position[1] - (this.height + sprt.height)), rot);
|
| + }
|
| +
|
| + // Update sprite
|
| + sprt.position = body.position;
|
| + sprt.rotation = body.getAngle();
|
| + }
|
| +}
|
|
|
Chromium Code Reviews
Issue 1161023006:
Adds basic support for images in game example (Closed)
Base URL: https://github.com/domokit/mojo.git@master