function startGame() { myGamePiece = new component(30, 30, "red", 10, 120); myGamePiece.gravity = 0.05; myScore = new component("30px", "Consolas", "black", 280, 40, "text"); myGameArea.start(); } var myGameArea = { canvas : document.createElement("canvas"), start : function() { this.canvas.width = 480; this.canvas.height = 270; this.context = this.canvas.getContext("2d"); document.body.insertBefore(this.canvas, document.body.childNodes[0]); this.frameNo = 0; }, clear : function() { this.context.clearRect(0, 0, this.canvas.width, this.canvas.height); } } function startGame() { myGameArea.start(); } var myGameArea = { canvas : document.createElement("canvas"), start : function() { this.canvas.width = 480; this.canvas.height = 270; this.context = this.canvas.getContext("2d"); document.body.insertBefore(this.canvas, document.body.childNodes[0]); } } var myGamePiece; function startGame() { myGameArea.start(); myGamePiece = new component(30, 30, "red", 10, 120); } function component(width, height, color, x, y) { this.width = width; this.height = height; this.x = x; this.y = y; ctx = myGameArea.context; ctx.fillStyle = color; ctx.fillRect(this.x, this.y, this.width, this.height); } var myGameArea = { canvas : document.createElement("canvas"), start : function() { this.canvas.width = 480; this.canvas.height = 270; this.context = this.canvas.getContext("2d");j document.body.insertBefore(this.canvas, document.body.childNodes[0]); this.interval = setInterval(updateGameArea, 20); }, clear : function() { this.context.clearRect(0, 0, this.canvas.width, this.canvas.height); } } function updateGameArea() { myGameArea.clear(); myGamePiece.x += 1; myGamePiece.update(); } function updateGameArea() { // myGameArea.clear(); myGamePiece.x += 1; myGamePiece.update(); } function startGame() { myGameArea.start(); myGamePiece = new component(140, 10, "red", 10, 120); } function startGame() { myGameArea.start(); myGamePiece = new component(30, 30, "red", 10, 120); } function startGame() { myGameArea.start(); myGamePiece = new component(30, 30, "red", 2, 2); } var redGamePiece, blueGamePiece, yellowGamePiece; function startGame() { redGamePiece = new component(75, 75, "red", 10, 10); yellowGamePiece = new component(75, 75, "yellow", 50, 60); blueGamePiece = new component(75, 75, "blue", 10, 110); myGameArea.start(); } function updateGameArea() { myGameArea.clear(); redGamePiece.update(); yellowGamePiece.update(); blueGamePiece.update(); } function updateGameArea() { myGameArea.clear(); redGamePiece.x += 1; yellowGamePiece.x += 1; yellowGamePiece.y += 1; blueGamePiece.x += 1; blueGamePiece.y -= 1; redGamePiece.update(); yellowGamePiece.update(); blueGamePiece.update(); } function stopMove() { myGamePiece.speedX = 0; myGamePiece.speedY = 0; } var myGameArea = { canvas : document.createElement("canvas"), start : function() { this.canvas.width = 480; this.canvas.height = 270; this.context = this.canvas.getContext("2d"); document.body.insertBefore(this.canvas, document.body.childNodes[0]); this.interval = setInterval(updateGameArea, 20); window.addEvenvar myGameArea = { canvas : document.createElement("canvas"), start : function() { this.canvas.width = 480; this.canvas.height = 270; this.context = this.canvas.getContext("2d"); document.body.insertBefore(this.canvas, document.body.childNodes[0]); this.interval = setInterval(updateGameArea, 20);