Question

长时间浏览互联网后，我终于想出了如何使角色跳起来的方法。但是我仍然在跳跃方面遇到问题。当我按下跳转按钮时，角色/球基本上会传送到所需位置，然后由于我设置的重力而缓慢下落。我一无所知。我是一名学生，也是编程语言的学习者，所以请多多包涵。

如果你们对我来说，可以使跳跃的上升部分更加平滑，将不胜感激。这是我的代码。

图片简介：

function startGame() {
    "use strict";
    myGameArea.start();
    myGamePiece = new component(30, 30, "GamePiece.png", 10, 389, "image");              
/* Javascript that controls the movment of the character and the 
background/when the game loads*/

定义游戏区和键码：

var myGameArea = {
    canvas : document.getElementById("myCanvas"),
    start : function() {
        "use strict";
        this.canvas.width = 1300;
        this.canvas.height = 600;
        this.canvas.style.position = "absolute";
        this.canvas.style.top = "267px";
        this.canvas.style.left = "303px";
            this.context = this.canvas.getContext("2d");
        document.body.insertBefore(this.canvas, 
        document.body.childNodes[0]);
        this.interval = setInterval(updateGameArea, 20);
        window.addEventListener('keydown', function (e) {
            myGameArea.keys = (myGameArea.keys || []);
            myGameArea.keys[e.keyCode] = (e.type === "keydown");                      
/* Loading th Canvas and style it to stay at the exact same position*/
        });
         window.addEventListener('keyup', function (e) {
         myGameArea.keys[e.keyCode] = (e.type === "keydown");            
         });
    },

每次定义位置：

    this.newPos = function() {
        this.gravitySpeed += this.gravity;
        this.x += this.speedX;
        this.y += this.speedY + this.gravitySpeed;
         this.hitBottom();
    };
 }

按键：

function updateGameArea() {
    if (myGamePiece.jumping <= 0 && myGameArea.keys && myGameArea.keys[38]) 
    {myGamePiece.speedY = -40; myGamePiece.jumping = 1;}
     if (myGamePiece.y >= 389) {myGamePiece.jumping = 0; }
    myBackground.newPos();
    myBackground.update();
    myGamePiece.newPos();    
    myGamePiece.update();

}

如果有人可以帮助我单独缩进所有这些代码行，那就太难了。

如何在此游戏中使跳跃更流畅。正在传送

0 个答案: