如何解决为什么我的玩家要与整个 y 板块碰撞，而不仅仅是与 y 板块 258 和 282 碰撞？
我开始在 Javascript 上进行碰撞，并且它们正在工作，问题是我认为我的播放器没有与瓷砖碰撞。他正在与我对碰撞函数所做的整个 x 和 y 碰撞。 我在运行整个瓦片地图阵列的 cicle "for" 之后使用 switch/case。 每个案例代表一个瓷砖...但我不太确定。
这是我的代码 + 绘制地图代码 + 玩家属性。如果有人可以帮助我，那就太好了！
var cols = 25;
var rows = 18;
var tileWidth = 32;
var tileHeight = 32;
var tileX = 0;
var tileY = 0;
var solid = false;
canvas.width = cols * tileWidth;
canvas.height = rows * tileHeight;
var map = [
467,468,467,499,500,501,282,258,528,528
];
Math.floor()
var map467 = new Image();
map467.src = "467_tile.png"
var map468 = new Image();
map468.src = "468_tile.png"
var map499 = new Image();
map499.src = "499_tile.png"
var map500 = new Image();
map500.src = "500_tile.png"
var map501 = new Image();
map501.src = "501_tile.png"
var map528 = new Image();
map528.src = "528_tile.png"
var map258 = new Image();
map258.src = "258_tile.png"
var map282 = new Image();
map282.src = "282_tile.png"
var keys = [];
var player = {
x: 400,y: 439,width: 48,height: 48,frameX: 0,frameY: 1,speed: 3,moving: false,movingLeft: false,movingRight: false,jump: false,jumpSpeed:12,jumpLeft: false,jumpRight: false,gravity: 0.7,jumpY: 500,velY: 0,ground: true,groundY: 552,direction: 0,facing: 'right',shot:false
};
function drawMap() {
for (var y = 0; y < rows; y++){
for (var x = 0; x<cols; x++) {
switch (map[((y*cols)+x)]){
case 467:
ctx.drawImage(map467,x*tileWidth,y*tileHeight,tileWidth,tileHeight);
break;
case 468:
ctx.drawImage(map468,tileHeight);
break;
case 499:
ctx.drawImage(map499,tileHeight);
break;
case 500:
ctx.drawImage(map500,tileHeight);
break;
case 501:
ctx.drawImage(map501,tileHeight);
break;
case 528:
ctx.drawImage(map528,tileHeight);
break;
case 282:
ctx.drawImage(map282,tileHeight);
solid = true;
break;
case 258:
ctx.drawImage(map258,tileHeight);
solid =true;
break;
}
}
}
}
function colisionLeft(x,y){
if((player.x) >= x*tileWidth && (player.x) <= ((x*tileWidth) + tileWidth)){
if((((player.y + 24) >= (y*tileWidth)) && ((player.y + 24) <= (y*tileWidth + tileHeight)))) {
return true;
}
}
return false;
}
function colisionRight(x,y){
if(((player.x + player.width) >= x*tileWidth) && ((player.x + player.width) <= ((x*tileWidth) + tileWidth))){
if((((player.y + 24) >= (y*tileWidth)) && ((player.y + 24) <= (y*tileWidth + tileHeight)))) {
return true;
}
}
return false;
}
function colisionBottom(x,y){
if((player.y + player.height) >= (y*tileHeight) && ((player.y + player.height) >= ((y*tileHeight) + tileHeight))) {
if ((((player.y+ 10 ) >= (y * tileWidth)) && ((player.y+ 10 ) <= (y * tileWidth + tileHeight)))) {
return true;
}
}
return false;
}
function colisionTop(x,y){
if(((player.y) <= (y*tileHeight + tileHeight))){
if((((player.y) >= (y*tileWidth)) && ((player.y ) <= (y*tileWidth + tileHeight)))) {
return true;
}
}
return false;
}
function movePlayer() {
// console.log('map');
// console.log(map);
//Left
if (keys[37] && player.x > 0) {
player.frameY = 2;
player.movingLeft = true;
player.movingRight = false;
player.direction =0
player.facing = "left"
var erro = false;
var bot = false
for (var y = 0; y < rows; y++){
for (var x = 0; x<cols; x++) {
switch (map[((y*cols)+x)]){
case 258:
if(colisionLeft(x,y) == true){
erro = true;
console.log("colision left");
}
break;
}
}
}
if(erro == false){
player.x -= player.speed;
}
}
//Right
if (keys[39] && player.x < canvas.width - player.width) {
// console.log('right');
player.frameY = 3;
player.movingRight = true
player.movingLeft = false
player.direction = 1;
player.facing = "right";
var erro = false;
for (var y = 0; y < rows; y++){
for (var x = 0; x<cols; x++) {
switch (map[((y*cols)+x)]){
case 258:
if(colisionRight(x,y) == true){
erro = true;
console.log("colision right");
}
break;
}
}
}
if(erro == false){
player.x += player.speed;
}
}
// UP
if (keys[38]) {
console.log('up');
player.jump = true;
player.ground = false;
player.y -= player.jumpSpeed;
player.frameY = 5;
var top= false;
var bot = false;
for (var y = 0; y < rows; y++){
for (var x = 0; x<cols; x++) {
switch (map[((y*cols)+x)]){
case 258:
if(colisionBottom(x,y) == true){
bot = true;
}
break;
case 282:
if (colisionTop(x,y) == true){
top = true;
player.jump = false
console.log("colision top")
}
break;
}
}
}
if(bot == false){
player.velY -= player.gravity;
}
if(top == false){
player.velY -= player.gravity;
}
}
// JUMP + GraviTY (BOUNCE EFFECT)
if (player.jump === true) {
console.log("1111");
player.velY += player.gravity
player.y += player.velY
if (player.y >= canvas.height - player.height && player.jump === true) {
player.y = canvas.height - player.height
player.velY = 0
player.jump = false;
}
}
if(player.ground === false){
var top = false;
var bot = false;
for (var y = 0; y < rows; y++){
for (var x = 0; x<cols; x++) {
switch (map[((y*cols)+x)]){
case 258:
if(colisionBottom(x,y) == true){
bot = true;
//player.y = y - player.height
player.velY = 0
player.jump = false;
player.ground = true
}
break;
}
}
}
if(bot === false) {
player.velY += player.gravity
player.ground = false;
}
// if(top === false) {
// player.velY += player.gravity}
// if(bot == false){
// player.velY += player.gravity
// player.y += player.velY
// }
}
}
--------------------- 没有 () 的碰撞代码现在是最糟糕的 :( ---------------- —— 函数colisionLeft(x,y){ if(player.x >= xtileWidth && player.x tileWidth) + tileWidth)){ if((player.y + 24) >= (ytileWidth) && (player.y + 24) tileWidth) + tileHeight)) { 返回真； } } 返回假； }
function colisionRight(x,y){
if((player.x + player.width) >= (x*tileWidth) && (player.x + player.width) <= ((x*tileWidth) + tileWidth)){
if((player.y + 24) >= (y*tileWidth) && (player.y + 24) <= ((y*tileWidth) + tileHeight)) {
return true;
}
}
return false;
}
function colisionBottom(x,y){
if((player.y + player.height) >= (y*tileHeight) && (player.y + player.height) >= ((y*tileHeight) + tileHeight)) {
if ((player.y+ 10 ) >= (y * tileWidth) && (player.y+ 10 ) <= ((y * tileWidth) + tileHeight)) {
return true;
}
}
return false;
}
function colisionTop(x,y){
if(player.y <= ((y*tileHeight) + tileHeight)){
if(player.y >= (y*tileWidth) && player.y <= ((y*tileWidth) + tileHeight)) {
return true;
}
}
return false;
}
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