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我目前正在使用Javascript編寫生活中的康威遊戲,但遇到了一些我無法找到解決方案的錯誤。的錯誤是:無法修復我的javascript代碼中的錯誤
- 未捕獲的類型錯誤:無法讀取屬性 '1' 的未定義的 - 這是此行 - 變種currentneighbour = cell.grid [RO + neighbour1] [COL + neighbour2];
- GoL.update - 與上面相同的行
- GoL.updateAll - 這是這一行 - this.update(i,j);
- (匿名函數) - 這是在底部的這條線gameoflife.updateAll();
我不知道爲什麼我得到這些錯誤,並遵循一個似乎適用於他們的教程。 這裏是我的遊戲代碼。
//object constructor
function cell(){
this.alive = Math.random() >0.7;
this.neighbours = 0; //number of live neighbours
this.checkneighbours = [[-1,-1],[-1,0],[0,-1],[-1,1],[1,-1],[1,0],[0,1],[1,1]];
}
function GoL(size){
this.size = size;
this.grid = this.makeGrid(size);
};
GoL.prototype.makeGrid = function(size){
var grid = [];
for(var i=0; i<size; i++){
var row=[];
for(var j =0; j<size; j++){
row.push(new cell());
}
grid.push(row);
}
return grid;
};
GoL.prototype.drawGrid = function(){
console.log("\033[2J");
for(var i=0;i<this.size;i++){
var row =this.grid[i];
var rowCell="";
for(var j=0;j<this.size;j++){
var cell = row[j];
if(cell.alive){
rowCell += "X|";
}else{
rowCell += " |";
}
}
console.log(rowCell);
}
};
GoL.prototype.underpopulation = function(ro,col){
var cell = this.grid[ro][col];
if(cell.neighbours <2){
return true;
}else{
return false;
}
};
GoL.prototype.overpopulation = function(ro,col){
var cell = this.grid[ro][col];
if(cell.neighbours >3){
return true;
}else{
return false;
}
};
GoL.prototype.backtolife = function(ro,col){
var cell = this.grid[ro][col];
if(cell.neighbours ===3 && !cell.alive){
return true;
}else{
return false;
}
};
GoL.prototype.update = function(ro,col){
var cell = this.grid[ro][col];
cell.num_of_neighbours = 0;
for(var i =0; i<cell.checkneighbours.length; i++){
var checkneighbour = cell.checkneighbours[i];
var neighbour1 = checkneighbour[0];
var neighbour2 = checkneighbour[1];
if(neighbour1>=0 && neighbour1 < this.size && neighbour2 >=0 && neighbour2 < this.size){
var currentneighbour = cell.grid[ro + neighbour1][col+neighbour2];
if(currentneighbour.alive){
cell.num_of_neighbours++;
}
}
}
};
GoL.prototype.updateAll = function(){
for(var i=0; i<this.size;i++){
for(var j=0; j<this.size;j++){
this.update(i,j);
}
}
}
GoL.prototype.cellstatus = function(ro,col){
var cell = this.grid[ro][col];
if(this.underpopulation(ro,col) || this.overpopulation(ro,col)){
cell.alive = false;
}else if(this.backtolife(ro,col)){
cell.alive = true;
}
};
GoL.prototype.allcellstatus = function(ro,col){
for(var i=0; i<this.size;i++){
for(var j=0; j<this.size;j++){
this.cellstatus(i,j);
}
}
};
var gameoflife = new GoL(40);
var interval = setInterval(function(){
gameoflife.drawGrid();
gameoflife.updateAll();
gameoflife.allcellstatus();
},1000);
爲了方便起見,我已經做了一小段代碼(只改變它的輸出寫入頁面而不是控制檯,這使得調試一個嚴重的PITA):https://jsfiddle.net/nw4Lw7z9/ –