added example stress 3

examples/index.js

@@ -38,6 +38,7 @@ module.exports = {
     stats: require('./stats.js'),
     stress: require('./stress.js'),
     stress2: require('./stress2.js'),
+    stress3: require('./stress3.js'),
     svg: require('./svg.js'),
     terrain: require('./terrain.js'),
     timescale: require('./timescale.js'),

examples/stress3.js

@@ -0,0 +1,107 @@
+var Example = Example || {};
+
+Example.stress3 = function() {
+    var Engine = Matter.Engine,
+        Render = Matter.Render,
+        Runner = Matter.Runner,
+        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,
+            showStats: true,
+            showPerformance: true
+        }
+    });
+
+    Render.run(render);
+
+    // create runner
+    var runner = Runner.create({
+        isFixed: true
+    });
+    Runner.run(runner, engine);
+
+    // add bodies
+    var scale = 0.3;
+    
+    var stack = Composites.stack(40, 40, 38, 18, 0, 0, function(x, y) {
+        var sides = Math.round(Common.random(1, 8));
+
+        switch (Math.round(Common.random(0, 1))) {
+        case 0:
+            if (Common.random() < 0.8) {
+                return Bodies.rectangle(x, y, Common.random(25, 50) * scale, Common.random(25, 50) * scale);
+            } else {
+                return Bodies.rectangle(x, y, Common.random(80, 120) * scale, Common.random(25, 30) * scale);
+            }
+        case 1:
+            return Bodies.polygon(x, y, sides, Common.random(25, 50) * scale);
+        }
+    });
+
+    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;
+
+    // fit the render viewport to the scene
+    Render.lookAt(render, {
+        min: { x: 0, y: 0 },
+        max: { x: 800, y: 600 }
+    });
+
+    // 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.stress3.title = 'Stress 3';
+Example.stress3.for = '>=0.14.2';
+
+if (typeof module !== 'undefined') {
+    module.exports = Example.stress3;
+}