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我試圖創建一個隨機迷宮，大部分迷宮發電機未捕獲的類型錯誤，有邏輯和代碼想通了。但是我一直每次都得到同樣的錯誤迷宮隨機生成：「遺漏的類型錯誤：無法讀取屬性未定義‘（插入的數目）’。」現在我把它建立到它應該只是一個訪問定義的屬性（AKA迷宮內），所以我無法看到的問題（一個或多個）位於其中。在Javascript
var canvas = document.getElementById('demo');
var ctx = canvas.getContext('2d');
var grid = [];
var MAZE_WIDTH = 25;
var MAZE_HEIGHT = 25;
var BLOCK_SIZE = 20;
var points={
startpoint: {
x1: 0,
y1: 0
},
endpoint:{
x2: 0,
y2: 0
},
newPoint:{
x3: 0,
y3:0
},
currentPoint:{
x4:0,
y4:0
}
}
var thispoint = [];
var visited = [];
var traceback = [];
var count = 0;
function drawSquare(x, y, r, g, b){
ctx.fillStyle = "rgb(" + r + "," + g + "," + b + ")"
ctx.fillRect(x, y, BLOCK_SIZE-1, BLOCK_SIZE-1)
}
for(i = 0; i < MAZE_WIDTH; i++){
grid[i] = [];
for(j = 0; j <MAZE_HEIGHT; j++){
grid[i][j] = 1;
}
}
function drawMaze(){
for(var y = 0; y < MAZE_HEIGHT; y++){
for(var x = 0; x < MAZE_WIDTH; x++){
if(x%2 == 1 && y%2 == 1){
grid[x][y] = 0;
}
if(x%2 == 0 && y%2 == 0){
grid[x][y] = 1;
}
if(grid[x][y]==1){
drawSquare(x*BLOCK_SIZE, y*BLOCK_SIZE, 255, 255, 255);
}
if(grid[x][y] == 0){
drawSquare(x*BLOCK_SIZE, y*BLOCK_SIZE, 0,0,0);
}
}
}
}
function startPath(){
var done = false;
do{
var a={
x: Math.floor(Math.random()*25),
y: Math.floor(Math.random()*25)
}
if(grid[a.x][a.y] == 0){
if(a.x-1 < 1 || a.y-1 < 1 || a.y+1 > 23|| a.x+1 >23) {
console.log("begin at " + a.x + "," + a.y);
points.startpoint.x1 = a.x;
points.startpoint.y1 = a.y;
points.currentPoint.x4 = points.startpoint.x1;
points.currentPoint.y4 = points.startpoint.y1;
visited.push([points.startpoint.x1,points.startpoint.y1]);
traceback.push([points.startpoint.x1,points.startpoint.y1]);
console.log("push");
done = true;
}else if(a.x-1 > 1 && a.y-1 > 1 && a.y+1 < 23 && a.x+1 >23){
done = false;
}
}else if(grid[a.x][a.y] != 0){
done = false;
}
}while(!done);
}
function buildMaze(){
var done = false;
do{
if(count == 3){
count = 0;
//go back
var tempTraceback = traceback.pop;
points.currentPoint.x4 = tempTraceback[0];
points.currentPoint.y4 = tempTraceback[1];
console.log("Temp Trace: " + tempTraceback[0], tempTraceback[1]);
if(points.currentPoint.x4 == points.startpoint.x1 && points.currentPoint.y4 == points.startpoint.y1){
done = true;
}else if(points.currentPoint.x4 != points.startpoint.x1 || points.currentPoint.y4 != points.startpoint.y1){
fillMaze();
}
}else if(count!= 3){
count = 0;
fillMaze();
console.log(traceback);
console.log(visited);
}
}while(!done)
}
function fillMaze(){
var a = Math.floor((Math.random() * 4)+1);
switch(a){
case 1:
console.log("left");
left();
break;
case 2:
console.log("right");
right();
break;
case 3:
console.log("up");
up();
break;
case 4:
console.log("down");
down();
break;
}
}
function fillSquare(x,y){
drawSquare(x*BLOCK_SIZE, y * BLOCK_SIZE,0,0,0)
}
function left(){
var thiscount = 0;
for(var i = 1; i <= 2; i++){
if(points.currentPoint.x4 - i >= 1){
if(grid[points.currentPoint.x4 - i][points.currentPoint.y4] != 2){
visited.push([points.currentPoint.x4 - i,points.currentPoint.y4]);
traceback.push([points.currentPoint.x4 - i,points.currentPoint.y4]);
grid[points.currentPoint.x4 -i][points.currentPoint.y4] = 2;
fillSquare(points.currentPoint.x4-i,points.currentPoint.y4);
console.log(points.currentPoint.x4 + "," + points.currentPoint.y4);
}else if(grid[points.currentPoint.x4 - i][points.currentPoint.y4] == 2){
thiscount++;
}
}else if(points.currentPoint.x4 - i < 1){
thiscount++;
}
}
if(thiscount == 2){
thiscount = 1;
}
points.currentPoint.x4 = points.currentPoint.x4 -2;
count = count + thiscount;
}
function right(){
var thiscount = 0;
for(var i = 1; i <= 2; i++){
if(points.currentPoint.x4 + i <= 23){
if(grid[points.currentPoint.x4 + i][points.currentPoint.y4] != 2){
visited.push([points.currentPoint.x4 + i,points.currentPoint.y4]);
traceback.push([points.currentPoint.x4 + i,points.currentPoint.y4]);
grid[points.currentPoint.x4 +i][points.currentPoint.y4] = 2;
fillSquare(points.currentPoint.x4 +i,points.currentPoint.y4);
console.log(points.currentPoint.x4 + "," + points.currentPoint.y4);
}else if(grid[points.currentPoint.x4 + i][points.currentPoint.y4] == 2){
thiscount++;
}
}else if(points.currentPoint.x4 + i > 23){
thiscount++;
}
}
if(thiscount == 2){
thiscount = 1;
}
points.currentPoint.x4 = points.currentPoint.x4 +2;
count = count + thiscount;
}
function up(){
var thiscount = 0;
for(var i = 1; i <= 2; i++){
if(points.currentPoint.y4 - i >= 1){
if(grid[points.currentPoint.x4][points.currentPoint.y4-i] != 2){
visited.push([points.currentPoint.x4,points.currentPoint.y4-i]);
traceback.push([points.currentPoint.x4,points.currentPoint.y4-i]);
grid[points.currentPoint.x4][points.currentPoint.y4-i] = 2;
fillSquare(points.currentPoint.x4,points.currentPoint.y4-i);
console.log(visited);
console.log(traceback);
}else if(grid[points.currentPoint.x4][points.currentPoint.y4-i] == 2){
thiscount++;
}
}else if(points.currentPoint.y4 - i < 1){
thiscount++;
}
}
if(thiscount == 2){
thiscount = 1;
}
points.currentPoint.y4 = points.currentPoint.y4-2;
count = count + thiscount;
}
function down(){
var thiscount = 0;
for(var i = 1; i <= 2; i++){
if(points.currentPoint.y4 + i <= 23){
if(grid[points.currentPoint.x4][points.currentPoint.y4 + i] != 2){
visited.push([points.currentPoint.x4,points.currentPoint.y4 +i]);
traceback.push([points.currentPoint.x4,points.currentPoint.y4+i]);
grid[points.currentPoint.x4][points.currentPoint.y4+i] = 2;
fillSquare(points.currentPoint.x4,points.currentPoint.y4+i);
}else if(grid[points.currentPoint.x4][points.currentPoint.y4 + i] == 2){
thiscount++;
}
}else if(points.currentPoint.y4 + i > 23){
thiscount++;
}
}
if(thiscount == 2){
thiscount = 1;
}
count = count + thiscount;
points.currentPoint.y4 = points.currentPoint.y4 + 2;
}
drawMaze();
startPath();
buildMaze();
上，則錯誤發生的行索引？ （控制檯應該顯示的行號，您可以點擊顯示在相關線上的鏈接。） – nnnnnn
@nnnnnn通常發生於168，192，244，217或 – MehLdy
能否請您[編輯]你的問題，以標誌那些線是？不要讓我們必須統計或粘貼到外部編輯器中來自己找出行號。 – nnnnnn