Game of life neighbour checking

wrap: function (x, min, max){ 
	return x < 0 ? max + x : min
},


get_neighbour:function(x, y) {
	if (g.grid[x] && g.grid[x][y]){
		return g.grid[x][y].state
	} else // else the number is out of bounds{
		x = g.func.wrap(x, 0, 500);
		y = g.func.wrap(y, 0, 500);
		return g.grid[x][y].state
	}
},
	check_neighbours: function(){
		for (var x = 0; x < g.canvas.width +10; x += 10) {
			for (var y = 0; y < g.canvas.height +10; y +=10) {
				g.grid[x][y].neighbours = 0

				if (g.func.get_neighbour(x, y-10)){
					g.grid[x][y].neighbours += 1;
				};

				if (g.func.get_neighbour(x, y+10)){
					g.grid[x][y].neighbours += 1;
				};

				if (g.func.get_neighbour(x-10, y)){
					g.grid[x][y].neighbours += 1;
				};
				if (g.func.get_neighbour(x+10, y)){
					g.grid[x][y].neighbours += 1;
				}; 
				if (g.func.get_neighbour(x-10, y-10)){
					g.grid[x][y].neighbours += 1;
				};
				if (g.func.get_neighbour(x+10, y+10)){
					g.grid[x][y].neighbours += 1;
				};
				if (g.func.get_neighbour(x+10, y-10)){
					g.grid[x][y].neighbours += 1;
				};
				if (g.func.get_neighbour(x-10, y+10)){
					g.grid[x][y].neighbours += 1;
				};
			}
		}
	},

	set_state: function(){
			// for x in xrange(canvas.width -1, 10)
		for (var x = 0; x < g.canvas.width +10; x += 10) {
				// for y in xrange(canvas.height -1, 10)
			for (var y = 0; y < g.canvas.height +10; y +=10) {

				if (g.grid[x][y].state) {
					if (g.grid[x][y].neighbours < 2){
						g.grid[x][y].state = false;
						g.grid[x][y].age = 0;
					}
					else if (g.grid[x][y].neighbours in [2, 3]){
						g.grid[x][y].state = true;
					}
					else if (g.grid[x][y].neighbours > 3){
						g.grid[x][y].state = false;
						g.grid[x][y].age = 0;
					}
				}
				else if (!g.grid[x][y].state){
					if (g.grid[x][y].neighbours === 3){
						g.grid[x][y].state = true;
					}
					else{
						g.grid[x][y].state = false;
						g.grid[x][y].age = 0;
						}
				}
			}
		}
	}
},