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當前我正在創建一個Javascript遊戲。我已經成功創建了所有的遊戲作品，以及我的遊戲的基本功能應該如何工作。但是，我遇到了兩個我似乎無法解決的問題，並且我已經花了幾個星期的時間試圖弄清楚如何去做。我無法弄清楚如果我的球員被推下瀑布，如何讓比賽結果導致比賽。另外，只要玩家仍然「活着」，我不確定自己的得分能否持續增長。如果任何人都可以演示如何做這些事情，或者指導我如何做到這一點的教程或文章的方向，這將是非常有益的。視頻遊戲分數問題
(function() {
var requestAnimationFrame = window.requestAnimationFrame || window.mozRequestAnimationFrame || window.webkitRequestAnimationFrame || window.msRequestAnimationFrame;
window.requestAnimationFrame = requestAnimationFrame;
})();
const seeded = (() => {
var seed = 1;
return {
max: 2576436549074795,
reseed(s) {
seed = s
},
random() {
return seed = ((8765432352450986 * seed) + 8507698654323524) % this.max
},
}
})();
const randSeed = (seed) => seeded.reseed(seed);
const randSI = (min, max = min + (min = 0)) => (seeded.random() % (max - min)) + min;
const randS = (min, max = min + (min = 0)) => (seeded.random()/seeded.max) * (max - min) + min;
randSeed(100); // seed the random generators
function Player(color, keymap, x) {
this.x = (typeof x === 'undefined') ? 1 : x;
this.y = 7;
this.width = 15;
this.height = 15;
this.speed = 10;
this.velX = 0;
this.velY = 0;
this.jumping = false;
this.keymap = {}
for (let key in keymap) {
switch (keymap[key]) {
case 'jump':
this.keymap[key] = this.jump
break;
case 'left':
this.keymap[key] = this.moveLeft
break;
case 'right':
this.keymap[key] = this.moveRight
break;
}
}
this.color = color;
} // Player()
Player.prototype.jump = function() {
if (!this.jumping) {
this.jumping = true;
this.velY = -this.speed * 1.5;
}
}
Player.prototype.moveRight = function() {
if (this.velX < this.speed) {
this.velX++;
}
}
Player.prototype.moveLeft = function() {
if (this.velX > -this.speed) {
this.velX--;
}
}
// Globals
var canvas = document.getElementById("canvas"),
ctx = canvas.getContext("2d"),
width = 700,
height = 600,
keys = [],
friction = .9,
gravity = .9;
canvas.width = width;
canvas.height = height;
// Set up players
var players = [];
players.push(new Player('purple', {
32: 'jump',
37: 'left',
38: 'jump',
39: 'right'
}))
/*players.push(new Player('yellow', {
56: 'jump',
52: 'left',
54: 'right'
}, width-25))*/
players.push(new Player('blue', {
87: 'jump',
65: 'left',
68: 'right'
}, (width-25)/2))
function update() {
ctx.clearRect(0, 0, width, height);
addPlatformsToBottom(); // will add platforms if needed
drawPlatforms();
players.forEach(player => {
// check player-specific keys
for (let i in player.keymap) {
if (keys[i] && typeof player.keymap[i] === 'function')
player.keymap[i].bind(player)();
}
player.velX *= friction;
player.velY += gravity;
player.x += player.velX;
player.y += player.velY;
if (player.x >= width - player.width) {
player.x = width - player.width;
} else if (player.x <= 0) {
player.x = 0;
}
if (player.y >= height - player.height) {
player.y = height - player.height;
player.jumping = false;
player.velY = 0;
}
testPlayerForPlatforms(player);
ctx.fillStyle = player.color;
ctx.fillRect(player.x, player.y, player.width, player.height);
}) // player.forEach
requestAnimationFrame(update);
}
document.body.addEventListener("keydown", function(e) {
// console.log(e.keyCode);
keys[e.keyCode] = true;
});
document.body.addEventListener("keyup", function(e) {
keys[e.keyCode] = false;
});
window.addEventListener("load", function() {
update();
});
function testPlayerForPlatforms(player) {
player.hitPlatform = false; // reset platform hit flag
for (var i = 0; i < platforms.length; i++) {
var p = platforms[i];
if (p.active) {
testPlayer(player, p);
if (player.hitPlatform) {
break; // stop search as player has hit a platform
}
}
}
}
function drawPlatforms() { // draws all platforms and move up
platformInfo.lastPlatformY += platformInfo.speed;
for (var i = 0; i < platforms.length; i++) {
var p = platforms[i];
if (p.active) {
p.yPos += platformInfo.speed;
if (p.yPos + p.height < 0) { // platform above top
p.active = false; // turn it off
} else {
p.draw();
}
}
}
}
function addPlatformsToBottom() {
while (platformInfo.lastPlatformY < ctx.canvas.height) {
generateLevel();
}
}
// some constants and vars to control random generation of platforms
const platformInfo = {
speed: -2.5,
height: 8, // platform height
minLength: 100, // in pixels
maxLength: 300,
vertSpacing: 100, // distance between platforms
minHorSpacing: 50, // should be larger than player
maxHorSpacing: 80,
lastPlatformY: 100, // y position of last platform created
maxHoleCount: 3,
color: "#FFF",
}
// array object holds platforms
const platforms = [];
// a platform template object that will be used to create platforms from
const platform = {
left: 0,
right: 0,
yPos: 0,
height: 0, // thickness
active: false, // true if platform in use
color: "#F84",
draw() { // function to draw the platform
ctx.fillStyle = this.color;
ctx.fillRect(this.left, this.yPos, this.right - this.left, this.height);
},
init(left, right, yPos) { // function to initialize
// alias to save typing.
const pI = platformInfo
this.yPos = yPos;
this.left = left;
this.right = right;
this.height = pI.height;
this.color = pI.color;
this.active = true;
},
}
// function adds platforms to array. If no inactive platforms a
// new one is created
function addPlatform() {
var platform;
for (var i = 0; i < platforms.length; i++) {
if (!platforms[i].active) { // is the platform inactive
platform = platforms[i];
break; // stop searching
}
}
if (!platform) { // if no inactive platform then create a new one
platform = createPlatform();
platforms.push(platform);
}
return platform;
}
// a function to create a platform object
function createPlatform(customProps = {}) { // custom props can be used to modify the
// platform in future. For now it just defaults to empty
return Object.assign({}, platform, customProps);
}
// creates a set of platforms for a single level
function generateLevel() {
var numHoles = randSI(1, platformInfo.maxHoleCount);
var spacing = ctx.canvas.width/(numHoles); // get spacing
var ypos = platformInfo.lastPlatformY;
platformInfo.lastPlatformY += platformInfo.vertSpacing;
var left = 0; // the starting left edge
for (var i = 1; i <= numHoles; i++) { // create numHoles
var platform = addPlatform();
var holeOffset = randSI(-spacing, 0);
platform.init(left, spacing * i + holeOffset, ypos);
left = spacing * i + holeOffset + randSI(platformInfo.minHorSpacing, platformInfo.maxHorSpacing);
}
// add the last platform
platform = addPlatform();
platform.init(left, ctx.canvas.width, ypos);
}
function testPlayer(player, platform) {
var p, pl; // p for player, pl for platform
p = player;
pl = platform;
// is the player above or below platform
if (!(p.x + p.width < pl.left || p.x > pl.right)) { // yes
if (p.velY > 0 && p.y < pl.yPos) { // is player moving down and above platform
if (p.y + p.height > pl.yPos) { //is bottom of player below top of platform
// must have hit platform
p.jumping = false;
p.y = pl.yPos - p.height; // move player so that it is on the platform
p.velY = 0;
p.hitPlatform = true; // flag a platform has been hit
}
} else if (p.y + p.height > pl.yPos + pl.height) { // player must be moving up so check if below platform
if (p.y < pl.yPos + pl.height) { // is top of player above bottom of platform
// must have hit head on platform
p.velY = 0;
p.y = pl.yPos + pl.height;
p.jumping = false;
p.hitPlatform = true; // flag a platform has been hit
}
}
}
}#score {
color:white;
font-size:35px;
}0<html>
<head>
<title>Square Stairs™</title>
</head>
<body bgcolor="#000">
<div id="score">SCORE:</div>
<br><br><br> <!-- line breaks to move canvas away from SO title bar that gets in the way when switching to full page mode -->
<canvas id="canvas" style="border:3px solid #fff"></canvas>
</body>
</html>這是我的代碼，因爲它目前爲。我在網站CodePen上提出，這是我的原始代碼。我與Unity或任何其他編碼平臺無關，所以如果您有任何關於如何解決此問題的信息，它必須能夠在CodePen網站上運行。謝謝您的幫助。
你能解釋一下這更好的，我不知道如何實現它變成我的代碼 – MilkyBoii
我實現了一個可能的版本，我也去到它上面的一些細節。如果您對此有任何疑問，請告訴我。謝謝。 –