public CollisionPoint(float x, float y, CollisionPoint h, CollisionPoint p)
{
head = h;
this.p = p;
this.x = x;
this.y = y;
}
public void Add(float x, float y)
{
if (n == null)
{
n = new CollisionPoint(x, y, head, this);
}
else
{
n.Add(x, y);
}
}
public void Add(float x, float y)
{
if (head == null)
{
head = new CollisionPoint(x, y, null, null);
head.SetHead(head);
}
else
{
head.Add(x, y);
}
}
/// <summary>
/// deletes node overlapping with (x,y)
/// </summary>
/// <returns>True if node is deleted</returns>
public bool Delete(int x, int y)
{
if (head != null &&
head.Next == null)
{
RemoveHead();
return true;
}
else if (head != null)
{
CollisionPoint c = head;
while (c != null)
{
if (c.CheckBounds(x, y))
{
if (!c.Delete())
{
head = null;
return true;
}
return true;
}
c = c.Next;
}
}
return false;
}
public void RemoveHead()
{
head = null;
}
/// <summary>
/// Sets head node, for this node and ever node after
/// </summary>
/// <param name="c">head node</param>
public void SetHead(CollisionPoint c)
{
head = c;
if (n != null)
{
n.SetHead(c);
}
}