/**
* Gets a direction index towards another NodeData. Assumes other node is near this |deltaX + deltaY = 1|
*/
public int GetDirectionTowards(NodeVO other)
{
if (other == null)
{
return(NodeVO.DIRECTION_INVALID_IDX);
}
if (other.pos.x == pos.x)
{
if (other.pos.y > pos.y)
{
return(NodeVO.DIRECTION_UP_IDX);
}
else
{
return(NodeVO.DIRECTION_DOWN_IDX);
}
}
else
{
if (other.pos.x > pos.x)
{
return(NodeVO.DIRECTION_RIGHT_IDX);
}
else
{
return(NodeVO.DIRECTION_LEFT_IDX);
}
}
}
/**
* Gets the number of nodes between this and starting node. Use with caution, as it loops through all chain.
*/
public uint GetDistance()
{
uint distance = 0;
NodeVO node = previousNode;
while (node != null)
{
distance++;
node = node.previousNode;
}
return(distance);
}