if(headX==food.x && headY ==food.y)
{
food = getRandomFood();
}
else
{
this.cells.pop();
}
var X,Y;
if((headX>=0&&headX<=12)&&(headY>=0&&headY<=12))
{
if(direction=='right')
{
X = headX + 1;
Y = headY;
}
…