/// <summary>
/// Returns the index of the first (ie lowest numbered)
/// sprite it colides with -1 if no collision
/// the self parameter is there to allow the avoidance of collision texting against yourself
/// </summary>
/// <param name="s">the sprite to test the list against</param>
/// <param name="self">the number of a single sprite to avoid testing</param>
/// <returns></returns>
public int collisionAA(Sprite3 s, int self)
{
if (s == null)
{
return(-1);
}
if (!s.getVisible())
{
return(-1);
}
if (!s.getActive())
{
return(-1);
}
for (int i = 0; i < highUsed + 1; i++)
{
if (sprite[i] != null && sprite[i].active)
{
if (sprite[i].getVisible() &&
i != self && s.collision(sprite[i]))
{
return(i);
}
}
}
return(-1);
}