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MyFirstGame.html
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MyFirstGame.html
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<!DOCTYPE html>
<html>
<head>
<title>躲汽车</title>
<meta charset="utf-8">
<script type="text/javascript" src="./jquery-1.10.2.min.js"> </script>
<style type="text/css">
#main{width: 800px; height: 900px; background:#fff; }
.control{padding-left: 120px;}
</style>
</head>
<body>
<div id="background">
<div id="head">
<img src="" alt=""/>
<span>Score:</span>
<span id="score">0</span>
<span>High Score:</span>
<span id="highscore">0</span>
</div>
<canvas id="main" >浏览器不支持canvas功能</canvas>
<div class="control">
<button id="start">开始</button>
<button id="left">左</button>
<button id="right">右</button>
</div>
</div>
</body>
<script type="text/javascript">
var GameParam = {};
GameParam.position = 1;
GameParam.score = 0;
if(localStorage.getItem("highscore"))
{
GameParam.highestscore =localStorage.getItem("highscore");
}
else{
GameParam.highestscore = 0;
}
$("#highscore").html(GameParam.highestscore);
$().ready(function(){
var game_canvas = document.getElementById("main");
var context = game_canvas.getContext("2d");
// 参数定义
var Speed = 5; //定义
//逻辑定义 .
drawBackground();
var draw_handle = setInterval(drawCar,100);
var create_handle = setInterval(CreateComeCar,600);
var drawCome_handle = setInterval(drawComeCar,50);
// document.addEventListener("keydown",KeyProcess,false);
//画背景
function drawBackground(){
context.fillStyle = "#aaa";
context.strokeStyle ="000";
context.lineWidth = 2;
context.strokeRect(30,10,200,100);
context.beginPath();
context.moveTo(96,10);
context.lineTo(96,110);
context.stroke();
context.closePath();
context.beginPath();
context.moveTo(162,10);
context.lineTo(162,110);
context.stroke();
context.closePath();
}
//画汽车
function drawCar(){
//draw picture
var play_car = new Image();
// play_car.addEventListener('load',drawCar3,false);
play_car.src = "./img/car4.jpg";
var startx = 50; //起始地址
var starty = 90;
var img_width = 12;
var img_height = 18;
context.clearRect(startx,starty,12,18);
context.clearRect(startx+70,starty,12,18);
context.clearRect(startx+140,starty,12,18);
switch(GameParam.position)
{
case 0:
drawCar1();
break;
case 1:
drawCar2();
break;
case 2:
drawCar3();
break;
default :
break;
}
function drawCar1(){
context.drawImage(play_car,startx,starty,img_width,img_height);
}
function drawCar2(){
context.drawImage(play_car,startx+70,starty,img_width,img_height);
}
function drawCar3(){
context.drawImage(play_car,startx+140,starty,img_width,img_height);
}
}
var car_list = new Array();
var count = 1;
function ComeCar()
{
var x, y,speed,type;
}
//生成随机的的到来汽车
function CreateComeCar(){
var index = Math.floor(Math.random()*3);
var type = Math.floor(Math.random()*10);
var come_car = new ComeCar();
if(type < 8){
come_car.type = 1; // 表示普通汽车；
}
else if(type == 9){
come_car.type = 2; //表示快速汽车；
}
else if(type == 8 ){
come_car.type = 3; //表示财宝；
}
come_car.x = index * 70 + 50;
come_car.y = 10;
if(come_car.type == 1)
{
come_car.speed =2;
count ++;
if(count %10 === 0)
{
var mod = count /10;
if(mod < 8){
come_car.speed += mod;
}else{
come_car.speed += mod*0.8;
}
}
}
else if(come_car.type == 2){
come_car.speed = 6+mod*0.5;
}
else if(come_car.type == 3){
come_car.speed = 4;
}
car_list.push(come_car);
}
//画随机生成的到来汽车
function drawComeCar(){
context.clearRect(50,13,18,77);
context.clearRect(120,13,18,77);
context.clearRect(190,13,18,77);
for(var i = 0 ; i < car_list.length; i ++){
var come_car = new Image();
// come_car.src = "./img/car2.jpg";
if(car_list[i].type == 1) {
come_car.src = "./img/car2.jpg";
}else if(car_list[i].type == 2){
come_car.src = "./img/car1.jpg";
}else if(car_list[i].type == 3){
come_car.src = "./img/yuanbao.jpg";
}
var collision = new Image();
collision.src = "./img/collision.jpg";
console.log("x is "+ car_list[i].x +"y is" +car_list[i].y);
if(car_list[i].type <= 2){
context.drawImage(come_car,car_list[i].x,car_list[i].y+car_list[i].speed,8,10);
}else{
context.drawImage(come_car,car_list[i].x,car_list[i].y+car_list[i].speed,16,10);
}
car_list[i].y +=car_list[i].speed;
if(car_list[i].x == GameParam.position*70 + 50 && car_list[i].y >= 80 )
{
if(car_list[i].type <= 2)
{
context.drawImage(collision,car_list[i].x,car_list[i].y,18,12);
alert("You lose the game!");
if(GameParam.score > GameParam.highestscore){
alert("You create a new record! contragulations!");
GameParam.highestscore = GameParam.score;
$("#highscore").html(GameParam.highestscore);
localStorage.setItem("highscore",GameParam.highestscore);
}
clearInterval(create_handle);
clearInterval(draw_handle);
clearInterval(drawCome_handle);
}
else if(car_list[i].type == 3){
GameParam.score += 2;
}
}
if(car_list[i].y >= 80)
{
car_list.splice(i,1);
GameParam.score ++;
$("#score").html(GameParam.score);
}
}
}
});
$("#left").click(function(){
if(GameParam.position > 0){
GameParam.position -= 1;
}
});
$("#right").click(function(){
if(GameParam.position < 2) {
GameParam.position += 1;
}
});
document.onkeydown = KeyProcess;
//
function KeyProcess(e){
var keycode = e.keyCode;
if(keycode === 37){
//left
if(GameParam.position > 0){
GameParam.position -= 1;
}
}
else if(keycode == 39){
if(GameParam.position < 2) {
GameParam.position += 1;
}
}
}
</script>
</html>