Javascript 不断缩小和增长的画布创建了无法通过的边框
我知道这个问题听起来很奇怪,但我不知道如何最好地描述这个问题,所以请按照这个链接玩游戏,直到你得到15-20分,你会看到一旦画布变大,就会产生一条黑线,有点将画布分成两半 我不知道这个问题是由javascript还是css引起的,也不知道需要什么帮助 下面是这个游戏的所有代码Javascript 不断缩小和增长的画布创建了无法通过的边框,javascript,css,html,canvas,Javascript,Css,Html,Canvas,我知道这个问题听起来很奇怪,但我不知道如何最好地描述这个问题,所以请按照这个链接玩游戏,直到你得到15-20分,你会看到一旦画布变大,就会产生一条黑线,有点将画布分成两半 我不知道这个问题是由javascript还是css引起的,也不知道需要什么帮助 下面是这个游戏的所有代码 /* ------------------------- settings.js ------------------------- */ var canvas=document.getElementById(“蛇画布
/*
-------------------------
settings.js
-------------------------
*/
var canvas=document.getElementById(“蛇画布”);
var ctx=canvas.getContext(“2d”);
var w=画布宽度;
var h=画布高度;
var得分=0;
变种蛇;
var-snakeSize=10;
食品;
/*
---------------------------
draw.js
---------------------------
*/
var drawModule=(函数(){
var bodySnake=函数(x,y){
ctx.fillStyle='绿色';
ctx.fillRect(x*snakeSize,y*snakeSize,snakeSize,snakeSize);
ctx.strokeStyle='暗绿色';
ctx.strokeRect(x*蛇形尺寸,y*蛇形尺寸,蛇形尺寸,蛇形尺寸);
}
变量=函数(x,y){
ctx.fillStyle='黄色';
ctx.fillRect(x*snakeSize,y*snakeSize,snakeSize,snakeSize);
ctx.fillStyle='红色';
ctx.fillRect(x*蛇形尺寸+1,y*蛇形尺寸+1,蛇形尺寸-2,蛇形尺寸-2);
}
var scoreText=函数(){
var score_text=“score:+分数;
ctx.fillStyle='蓝色';
ctx.fillText(分数为145,h-5);
}
var drawSnake=函数(){
变量长度=4;
snake=[];
对于(变量i=length-1;i>=0;i--){
snake.push({x:i,y:0});
}
}
var paint=function(){
ctx.fillStyle='浅灰色';
ctx.fillRect(0,0,w,h);
ctx.strokeStyle=‘黑色’;
ctx.strokeRect(0,0,w,h);
btn.setAttribute('disabled',true);
var snakeX=snake[0].x;
var snakeY=snake[0].y;
如果(方向=='右'){
snakeX++;}
如果(方向=='left'){
蛇--;}
如果(方向='up'){
陷阱--;
}如果(方向=‘向下’){
snakeY++;}
如果(蛇形图==-1 | |蛇形图==w/snakeSize | |蛇形图==-1 | |蛇形图==h/snakeSize | |检查碰撞(蛇形图,蛇形图,蛇形图)){
//重新开始游戏
btn.removeAttribute('disabled',true);
ctx.clearRect(0,0,w,h);
gameloop=清除间隔(gameloop);
得分=0;
h=350;
w=350;
返回;
}
if(snakeX==food.x&&snakeY==food.y){
var tail={x:snakeX,y:snakeY};//创建一个新的头部,而不是移动尾部
分数++;
createFood();//创建新食物
}否则{
var tail=snake.pop();//弹出最后一个单元格
尾巴x=蛇x;
tail.y=snakeY;
}
//蛇现在可以吃食物了。
snake.unshift(tail);//将尾部放回第一个单元格
对于(变量i=0;isnake.length;i++){
var snakeX=snake[i].x;
var snakeY=snake[i].y;
如果(food.x==snakeX和food.y==snakeY和food.y==snakeY和food.y==snakeY和food.x==snakeX){
food.x=数学地板((数学随机()*30)+1);
food.y=Math.floor((Math.random()*30)+1);
}
}
}
var checkCollision=函数(x,y,数组){
对于(var i=0;i=5和分数<8){
w=500;
h=350;
$(“#蛇画布”)。设置动画({
宽度:w,
身高:h
},2000);
}否则如果(分数>=8和分数<10){
w=500;
h=350;
$(“#蛇画布”)。设置动画({
宽度:w,
身高:h
},2000);
}否则如果(分数>=10和分数<12){
w=600;
h=350;
$(“#蛇画布”)。设置动画({
宽度:w,
身高:h
},2000);
}否则如果(分数>=12和分数<15){
w=850;
h=350;
$(“#蛇画布”)。设置动画({
宽度:w,
身高:h
},2000);
}否则如果(分数>=15和分数<18){
w=400;
h=350;
$(“#蛇画布”)。设置动画({
宽度:w,
黑格
/*
-------------------------
settings.js
-------------------------
*/
var canvas = document.getElementById("snakeCanvas");
var ctx = canvas.getContext("2d");
var w = canvas.width;
var h = canvas.height;
var score = 0;
var snake;
var snakeSize = 10;
var food;
/*
---------------------------
draw.js
---------------------------
*/
var drawModule = (function() {
var bodySnake = function(x, y) {
ctx.fillStyle = 'green';
ctx.fillRect(x * snakeSize, y * snakeSize, snakeSize, snakeSize);
ctx.strokeStyle = 'darkgreen';
ctx.strokeRect(x * snakeSize, y * snakeSize, snakeSize, snakeSize);
}
var pizza = function(x, y) {
ctx.fillStyle = 'yellow';
ctx.fillRect(x * snakeSize, y * snakeSize, snakeSize, snakeSize);
ctx.fillStyle = 'red';
ctx.fillRect(x * snakeSize + 1, y * snakeSize + 1, snakeSize - 2, snakeSize - 2);
}
var scoreText = function() {
var score_text = "Score: " + score;
ctx.fillStyle = 'blue';
ctx.fillText(score_text, 145, h - 5);
}
var drawSnake = function() {
var length = 4;
snake = [];
for (var i = length - 1; i >= 0; i--) {
snake.push({
x: i,
y: 0
});
}
}
var paint = function() {
ctx.fillStyle = 'lightgrey';
ctx.fillRect(0, 0, w, h);
ctx.strokeStyle = 'black';
ctx.strokeRect(0, 0, w, h);
btn.setAttribute('disabled', true);
var snakeX = snake[0].x;
var snakeY = snake[0].y;
if (direction == 'right') {
snakeX++;
} else if (direction == 'left') {
snakeX--;
} else if (direction == 'up') {
snakeY--;
} else if (direction == 'down') {
snakeY++;
}
if (snakeX == -1 || snakeX == w / snakeSize || snakeY == -1 || snakeY == h / snakeSize || checkCollision(snakeX, snakeY, snake)) {
//restart game
btn.removeAttribute('disabled', true);
ctx.clearRect(0, 0, w, h);
gameloop = clearInterval(gameloop);
score = 0;
h = 350;
w = 350;
return;
}
if (snakeX == food.x && snakeY == food.y) {
var tail = {
x: snakeX,
y: snakeY
}; //Create a new head instead of moving the tail
score++;
createFood(); //Create new food
} else {
var tail = snake.pop(); //pops out the last cell
tail.x = snakeX;
tail.y = snakeY;
}
//The snake can now eat the food.
snake.unshift(tail); //puts back the tail as the first cell
for (var i = 0; i < snake.length; i++) {
bodySnake(snake[i].x, snake[i].y);
}
pizza(food.x, food.y);
scoreText();
}
var createFood = function() {
food = {
x: Math.floor((Math.random() * 30) + 1),
y: Math.floor((Math.random() * 30) + 1)
}
for (var i = 0; i > snake.length; i++) {
var snakeX = snake[i].x;
var snakeY = snake[i].y;
if (food.x === snakeX && food.y === snakeY || food.y === snakeY && food.x === snakeX) {
food.x = Math.floor((Math.random() * 30) + 1);
food.y = Math.floor((Math.random() * 30) + 1);
}
}
}
var checkCollision = function(x, y, array) {
for (var i = 0; i < array.length; i++) {
if (array[i].x === x && array[i].y === y)
return true;
}
return false;
}
var init = function() {
direction = 'down';
drawSnake();
createFood();
gameloop = setInterval(paint, 80);
}
return {
init: init
};
}());
/*
-------------------
app.js
-------------------
*/
(function(window, document, drawModule, undefined) {
var btn = document.getElementById('btn');
btn.addEventListener("click", function() {
drawModule.init();
});
document.onkeydown = function(event) {
keyCode = window.event.keyCode;
keyCode = event.keyCode;
switch (keyCode) {
case 37:
if (direction != 'right') {
direction = 'left';
}
console.log('left');
break;
case 39:
if (direction != 'left') {
direction = 'right';
console.log('right');
}
break;
case 38:
if (direction != 'down') {
direction = 'up';
console.log('up');
}
break;
case 40:
if (direction != 'up') {
direction = 'down';
console.log('down');
}
break;
}
}
})(window, document, drawModule);
/*
---------------------
enhancements.js
---------------------
*/
function UpdateCanvas() {
if (score == 0) {
w = 350;
h = 350;
$('#snakeCanvas').animate({
width: w,
height: h
}, 2000);
} else if (score >= 5 && score < 8) {
w = 500;
h = 350;
$('#snakeCanvas').animate({
width: w,
height: h
}, 2000);
} else if (score >= 8 && score < 10) {
w = 500;
h = 350;
$('#snakeCanvas').animate({
width: w,
height: h
}, 2000);
} else if (score >= 10 && score < 12) {
w = 600;
h = 350;
$('#snakeCanvas').animate({
width: w,
height: h
}, 2000);
} else if (score >= 12 && score < 15) {
w = 850;
h = 350;
$('#snakeCanvas').animate({
width: w,
height: h
}, 2000);
} else if (score >= 15 && score < 18) {
w = 850;
h = 350;
$('#snakeCanvas').animate({
width: w,
height: h
}, 2000);
} else if (score >= 18 && score < 21) {
w = 950;
h = 350;
$('#snakeCanvas').animate({
width: w,
height: h
}, 2000);
}
}