mirror of
https://github.com/photonstorm/phaser
synced 2024-12-11 22:03:09 +00:00
130 lines
3 KiB
JavaScript
130 lines
3 KiB
JavaScript
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var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload: preload, create: create, update: update, render: render }, false);
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function preload() {
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game.load.image('box', 'assets/sprites/block.png');
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}
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var world;
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var box;
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var box2;
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var boxShape;
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var boxBody;
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var boxShape2;
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var boxBody2;
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var planeShape;
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var planeBody;
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function p2px(v) {
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return v *= -20;
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}
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function px2p(v) {
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return v * -0.05;
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}
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function create() {
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game.renderer.roundPixels = true;
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box = game.add.image(300, 200, 'box');
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box.anchor.set(0.5);
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box2 = game.add.image(300, 10, 'box');
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box2.anchor.set(0.5);
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world = new p2.World();
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boxShape = new p2.Rectangle(px2p(box.width), px2p(box.height));
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boxBody = new p2.Body({ mass: 1, position:[px2p(box.x), px2p(box.y)], angularVelocity: 1 });
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boxBody.addShape(boxShape);
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boxShape2 = new p2.Rectangle(px2p(box2.width), px2p(box2.height));
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boxBody2 = new p2.Body({ mass: 1, position:[px2p(box2.x), px2p(box2.y)], angularVelocity: 1 });
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boxBody2.addShape(boxShape2);
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world.addBody(boxBody);
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world.addBody(boxBody2);
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// Add a plane
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planeShape = new p2.Plane();
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planeBody = new p2.Body({ mass: 0, position:[0, px2p(550)] });
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// planeBody = new p2.Body();
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planeBody.addShape(planeShape);
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world.addBody(planeBody);
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}
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function update() {
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// Move physics bodies forward in time
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world.step(1/60);
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box.x = p2px(boxBody.position[0]);
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box.y = p2px(boxBody.position[1]);
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box.rotation = boxBody.angle; // Rotate to the box body frame
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box2.x = p2px(boxBody2.position[0]);
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box2.y = p2px(boxBody2.position[1]);
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box2.rotation = boxBody2.angle; // Rotate to the box body frame
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}
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function render() {
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// game.debug.renderText('x: ' + p2px(boxBody.position[0]), 32, 32);
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// game.debug.renderText('y: ' + p2px(boxBody.position[1]), 32, 64);
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// game.debug.renderText('r: ' + boxBody.angle, 32, 96);
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// drawbox();
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}
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function drawbox() {
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var ctx = game.context;
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ctx.save();
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ctx.translate(game.width/2, game.height/2); // Translate to the center
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ctx.scale(50, -50); // Zoom in and flip y axis
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ctx.lineWidth = 0.05;
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ctx.strokeStyle = 'rgb(255,255,255)';
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ctx.beginPath();
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var x = boxBody.position[0],
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y = boxBody.position[1];
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ctx.save();
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ctx.translate(x, y); // Translate to the center of the box
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ctx.rotate(boxBody.angle); // Rotate to the box body frame
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ctx.rect(-boxShape.width/2, -boxShape.height/2, boxShape.width, boxShape.height);
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ctx.stroke();
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ctx.closePath();
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// ctx.restore();
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// ctx.save();
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// ctx.translate(game.width/2, game.height/2); // Translate to the center
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// ctx.scale(50, -50); // Zoom in and flip y axis
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// ctx.lineWidth = 0.05;
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// ctx.strokeStyle = 'rgb(255,255,255)';
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// ctx.beginPath();
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// var y = planeBody.position[1];
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// ctx.rotate(0); // Rotate to the box body frame
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// ctx.moveTo(-game.width, y);
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// ctx.lineTo( game.width, y);
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// ctx.stroke();
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// ctx.closePath();
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ctx.restore();
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}
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