New user submitted examples

examples/physics/bounce knock.js

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+// mods by Patrick OReilly 
+// Twitter: @pato_reilly Web: http://patricko.byethost9.com
+
+var game = new Phaser.Game(800, 600, Phaser.CANVAS, 'phaser-example', { preload: preload, create: create, update: update, render: render });
+
+function preload() {
+
+    game.load.image('dude', 'assets/sprites/phaser-dude.png');
+    game.load.image('ball', 'assets/sprites/pangball.png');
+    
+}
+
+var image;
+
+function create() {
+
+    cursors = game.input.keyboard.createCursorKeys();
+    
+    //  This creates a simple sprite that is using our loaded image and
+    //  displays it on-screen
+    //  and assign it to a variable
+    ball = game.add.sprite(400, 200, 'ball');
+    knocker = game.add.sprite(400, 200, 'dude');
+
+    //  This gets it moving
+    ball.body.velocity.setTo(200, 200);
+
+    //  This makes the game world bounce-able
+    ball.body.collideWorldBounds = true;
+
+    //  This sets the image bounce energy for the horizontal 
+    //  and vertical vectors (as an x,y point). "1" is 100% energy return
+    ball.body.bounce.setTo(1, 1);
+
+    //  This sets the gravity the sprite responds to in the world, as a point
+    //  Here we leave x=0 and set y=8 to simulate falling
+    ball.body.gravity.setTo(0, 8);
+
+}
+
+//  Move the knocker with the arrow keys
+function update () {
+
+    if (cursors.up.isDown)
+    {
+        knocker.body.velocity.y = -400;
+    }
+    else if (cursors.down.isDown)
+    {
+        knocker.body.velocity.y =  400;
+    }
+    else if (cursors.left.isDown)
+    {
+        knocker.body.velocity.x = -400;
+    }
+    else if (cursors.right.isDown)
+    {
+        knocker.body.velocity.x = 400;
+    } 
+    else
+    {
+        knocker.body.velocity.setTo(0, 0);
+    }
+        
+    //  Enable physics between the knocker and the ball
+    game.physics.collide(knocker, ball);
+    
+}
+
+function render () {
+
+    //debug helper
+    game.debug.renderSpriteInfo(ball, 32, 32);
+
+}