// Use this for initialization
void Start()
{
button = GetComponent <SCButton> ();
switch (index)
{
case 0:
d_x = 1;
d_y = -1;
break;
case 1:
d_x = -1;
d_y = -1;
break;
case 2:
d_x = 1;
d_y = 1;
break;
case 3:
d_x = -1;
d_y = 1;
break;
}
}
void OnEnable()
{
btn = (SCButton)target;
}