贪吃蛇-食物类_贪吃蛇的食物种类

作者：盐析白兔 | 2024-08-19 14:11:10

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贪吃蛇的食物种类

HTML 代码


<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>食物类</title>

    <style>
        #map{
            width: 400px;
            height: 400px;
            background-color: #000;
            position: relative;
        }
    
    </style>
</head>
<body>
    
    <div id="map"></div>

    <script>

    {  
        class Map{
            constructor(el,rect = 10){
                this.el = el;
                this.rect = rect;
                this.data = [];

                //行列数 = 总宽高 / 行列的大小
                this.rows = Math.ceil(Map.getStyle(el,"height") / rect);
                this.cells = Math.ceil(Map.getStyle(el,"width") / rect);

                //总宽高 =  行列数 * 行列的大小  
                Map.setStyle(el,"height",this.rows*rect);
                Map.setStyle(el,"width",this.cells*rect);
            }

            static getStyle(el,attr){
                return  parseFloat(getComputedStyle(el)[attr]);
            }

            static setStyle(el,attr,val){
                el.style[attr] = val + "px";
            }

            //设置数据
            setData(newData){
                this.data = this.data.concat(newData);
            }

            //清除数据
            clearData(){
                    this.data.length = 0;
            }
            //判断指定位置 是否包含数据
            include({x,y}){
                return this.data.some(item=>(item.x==x && item.y==y));
            }

            //通过数据，渲染到页面元素
            render(){
                this.el.innerHTML = this.data.map(item=>{
                    return `<span style="position:absolute;left:${item.x*this.rect}px;top:${item.y*this.rect}px;width:${this.rect}px; height:${this.rect}px;background:${item.color};"></span>`
                }).join("");
            }
        }
    
        class Food{
            constructor(map,colors = ["red","blue","yellow"]){
                this.map = map;
                this.data = null;
                this.colors = colors;
            }

            //创建食物
            create(){
                let x = Math.floor(Math.random()*this.map.cells);
                let y = Math.floor(Math.random()*this.map.rows);
                let color = this.colors[parseInt(Math.random()*this.colors.length)];
                this.data = {x,y,color};

                if(this.map.include(this.data)){
                    this.create();
                }
                this.map.setData(this.data);

            }

            
        }
        
    let map = document.querySelector("#map");
     let gameMap = new Map(map,10);
     let gameFood = new Food(gameMap);   


    gameMap.setData([
                    {x:5,y:3,color:"red"},
                    {x:4,y:3,color:"#fff"},
                    {x:3,y:3,color:"#fff"},
                    {x:2,y:3,color:"#fff"},
               ]);


        setInterval(() => {
            gameFood.create();
            gameMap.render();
        }, 200);

    //  gameMap.clearData();   


     console.log(gameMap.include({x:5,y:3}));
    //  console.log(gameMap);
    }

    </script>

</body>
</html>
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JS 代码

    // 食物类
  export default class Food {
        constructor(cells,rows, colors = ["red", "blue", "yellow", "pink"]) {
            this.cells = cells;
            this.rows = rows;
            this.data = null;
            this.colors = colors;
            this.create(); // 初始化食物
        }

        create() {
            let x = Math.floor(Math.random() * this.cells);
            let y = Math.floor(Math.random() * this.rows);
            let color = this.colors[parseInt(Math.random() * this.colors.length)];
            this.data = { x, y, color };
            // if (this.map.include(this.data)) {
            //     this.create();
            // }
            // this.map.setData(this.data);
        }
    }

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