Created
September 16, 2012 10:52
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Pong Game
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Pong</title> | |
| <style> | |
| canvas { | |
| border: 2px solid #a7a7a7; | |
| } | |
| </style> | |
| <meta name="viewport" content="user-scalable=0,initial-scale=1,maximum-scale=1,minimum-scale=1" /> | |
| </head> | |
| <body> | |
| <button>Start</button> | |
| <canvas width='300' height="300"></canvas> | |
| <script src="game_starter.js"></script> | |
| </body> | |
| </html> |
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| /** | |
| * Created with JetBrains WebStorm. | |
| * User: ynonperek | |
| * Date: 9/16/12 | |
| * Time: 12:03 PM | |
| * To change this template use File | Settings | File Templates. | |
| */ | |
| (function() { | |
| var Ball = function(x, y) { | |
| var self = {}; | |
| // Insert Code Here | |
| return self; | |
| }; | |
| var Player = function() { | |
| var self = {}; | |
| // Insert Code Here | |
| return self; | |
| }; | |
| var GameRules = function( loop, ball, player ) { | |
| var self = {}; | |
| self.update = function() { | |
| if ( ( ball.y() >= player.y() ) ) { | |
| if ( Math.abs( ball.x() - player.x() ) < 45 ) { | |
| ball.flip_y(); | |
| } else { | |
| loop.stop(); | |
| } | |
| } | |
| }; | |
| return self; | |
| }; | |
| var GameLoop = function( ctx ) { | |
| var self = { objects: [], ctx: ctx }; | |
| var timer_id; | |
| self.addObject = function(o) { | |
| self.objects.push(o); | |
| return self.objects.length - 1; | |
| }; | |
| self.removeObject = function(object_id) { | |
| // sets the element to undefined so | |
| // all other indices remain the same | |
| delete self.objects[object_id]; | |
| }; | |
| self.update = function() { | |
| for ( var i= 0, len = self.objects.length; | |
| i < len; | |
| i++ ) { | |
| if ( self.objects[i] && | |
| typeof self.objects[i].update === 'function') { | |
| self.ctx.save(); | |
| self.objects[i].update( self.ctx ); | |
| self.ctx.restore(); | |
| } | |
| } | |
| }; | |
| self.start = function() { | |
| self.stop(); | |
| timer_id = setInterval( function() { | |
| self.update(); | |
| }, 1000/33); | |
| }; | |
| self.stop = function() { | |
| if ( timer_id ) { | |
| clearInterval(timer_id); | |
| } | |
| }; | |
| return self; | |
| }; | |
| var can = document.querySelector('canvas'); | |
| var ctx = can.getContext('2d'); | |
| var b = new Ball(50, 40); | |
| var p = new Player(); | |
| var g = new GameLoop(ctx); | |
| var rules = new GameRules( g, b, p ); | |
| var prev_x = null; | |
| can.addEventListener('touchmove', function(e) { | |
| e.preventDefault(); | |
| var t = e.touches.item(0); | |
| // Insert code here | |
| prev_x = t.clientX; | |
| }); | |
| g.addObject(p); | |
| g.addObject(b); | |
| g.addObject(rules); | |
| g.start(); | |
| }()); |
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