added Example.renderResize

Author: liabru

examples/index.js

@@ -28,6 +28,7 @@ module.exports = {
     restitution: require('./restitution.js'),
     rounded: require('./rounded.js'),
     remove: require('./remove.js'),
+    renderResize: require('./renderResize.js'),
     sensors: require('./sensors.js'),
     sleeping: require('./sleeping.js'),
     slingshot: require('./slingshot.js'),

examples/renderResize.js

@@ -0,0 +1,131 @@
+var Example = Example || {};
+
+Example.renderResize = function() {
+    var Engine = Matter.Engine,
+        Render = Matter.Render,
+        Runner = Matter.Runner,
+        Composite = Matter.Composite,
+        Composites = Matter.Composites,
+        Common = Matter.Common,
+        MouseConstraint = Matter.MouseConstraint,
+        Mouse = Matter.Mouse,
+        Composite = Matter.Composite,
+        Bodies = Matter.Bodies;
+
+    // create engine
+    var engine = Engine.create(),
+        world = engine.world;
+
+    // create renderer
+    var render = Render.create({
+        element: document.body,
+        engine: engine,
+        options: {
+            width: 800,
+            height: 600,
+            showAngleIndicator: true,
+            pixelRatio: 2
+        }
+    });
+
+    Render.run(render);
+
+    // create runner
+    var runner = Runner.create();
+    Runner.run(runner, engine);
+
+    // add bodies
+    var stack = Composites.stack(20, 20, 10, 5, 0, 0, function(x, y) {
+        var sides = Math.round(Common.random(1, 8));
+
+        // round the edges of some bodies
+        var chamfer = null;
+        if (sides > 2 && Common.random() > 0.7) {
+            chamfer = {
+                radius: 10
+            };
+        }
+
+        switch (Math.round(Common.random(0, 1))) {
+        case 0:
+            if (Common.random() < 0.8) {
+                return Bodies.rectangle(x, y, Common.random(25, 50), Common.random(25, 50), { chamfer: chamfer });
+            } else {
+                return Bodies.rectangle(x, y, Common.random(80, 120), Common.random(25, 30), { chamfer: chamfer });
+            }
+        case 1:
+            return Bodies.polygon(x, y, sides, Common.random(25, 50), { chamfer: chamfer });
+        }
+    });
+
+    Composite.add(world, stack);
+
+    Composite.add(world, [
+        // walls
+        Bodies.rectangle(400, 0, 800, 50, { isStatic: true }),
+        Bodies.rectangle(400, 600, 800, 50, { isStatic: true }),
+        Bodies.rectangle(800, 300, 50, 600, { isStatic: true }),
+        Bodies.rectangle(0, 300, 50, 600, { isStatic: true })
+    ]);
+
+    // add mouse control
+    var mouse = Mouse.create(render.canvas),
+        mouseConstraint = MouseConstraint.create(engine, {
+            mouse: mouse,
+            constraint: {
+                stiffness: 0.2,
+                render: {
+                    visible: false
+                }
+            }
+        });
+
+    Composite.add(world, mouseConstraint);
+
+    // keep the mouse in sync with rendering
+    render.mouse = mouse;
+
+    // set canvas position to screen top left
+    render.canvas.style.position = 'fixed';
+
+    // resize event handler
+    var handleWindowResize = function() {
+        // get the current window size
+        var width = window.innerWidth,
+            height = window.innerHeight;
+
+        // set the render size to equal window size
+        Render.setSize(render, width, height);
+
+        // update the render bounds to fit the scene
+        Render.lookAt(render, Composite.allBodies(engine.world), {
+            x: 50,
+            y: 50
+        });
+    }
+
+    // add window resize handler
+    window.addEventListener('resize', handleWindowResize);
+
+    // update canvas size to initial window size
+    handleWindowResize();
+
+    // context for MatterTools.Demo
+    return {
+        engine: engine,
+        runner: runner,
+        render: render,
+        canvas: render.canvas,
+        stop: function() {
+            Matter.Render.stop(render);
+            Matter.Runner.stop(runner);
+        }
+    };
+};
+
+Example.renderResize.title = 'Render Resize';
+Example.renderResize.for = '>=0.20.0';
+
+if (typeof module !== 'undefined') {
+    module.exports = Example.renderResize;
+}