//Draws the arrows for a path, updating them relative to the node and its followers in the path.
void setArrowsFor(Node n)
{
// two -> one -> node
Node one = null;
Node two = null;
Quaternion q = new Quaternion();
//if we're the start node
if (path.IndexOf(n) == 0)
{
return;
}
//one is the node directly following node
one = path[path.IndexOf(n) - 1];
//two is the node directly following one
if (path.IndexOf(n) - 2 > 0)
{
two = path[path.IndexOf(n) - 2];
}
Vector3 delta01 = Vector3.zero;
Vector3 delta12 = Vector3.zero;
//find the positional difference between node and one
delta01 = n.position - one.position;
//find the positional difference between one and two
if (two != null)
{
delta12 = one.position - two.position;
}
else
{
delta12 = one.position - caster.transform.position;
}
//Check the the differences between node and one, finding the angle, then finding the differences between one and two, finding their angle.
// From there, we can tell if we need to have keep the arrow straight, or bend it.
//SPEEDUP: Use a pool for this.
if (Mathfx.CompareXZ(delta01, Vector3.forward))
{
q.eulerAngles = Vector3.zero;
if (one != path[0])
{
if (Mathfx.CompareXZ(delta12, Vector3.forward) || Mathfx.CompareXZ(delta12, Vector3.back))
{
one.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_straight") as GameObject, one.position, q) as GameObject).transform);
}
else if (Mathfx.CompareXZ(delta12, Vector3.right))
{
one.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_left") as GameObject, one.position, q) as GameObject).transform);
}
else if (Mathfx.CompareXZ(delta12, Vector3.left))
{
one.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_right") as GameObject, one.position, q) as GameObject).transform);
}
}
}
else if (Mathfx.CompareXZ(delta01, Vector3.back))
{
q.eulerAngles = new Vector3(0f, 180f, 0f);
if (one != path[0])
{
if (Mathfx.CompareXZ(delta12, Vector3.forward) || Mathfx.CompareXZ(delta12, Vector3.back))
{
one.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_straight") as GameObject, one.position, q) as GameObject).transform);
}
else if (Mathfx.CompareXZ(delta12, Vector3.right))
{
one.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_right") as GameObject, one.position, q) as GameObject).transform);
}
else if (Mathfx.CompareXZ(delta12, Vector3.left))
{
one.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_left") as GameObject, one.position, q) as GameObject).transform);
}
}
}
else if (Mathfx.CompareXZ(delta01, Vector3.left))
{
q.eulerAngles = new Vector3(0f, -90f, 0f);
if (one != path[0])
{
if (Mathfx.CompareXZ(delta12, Vector3.forward))
{
one.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_left") as GameObject, one.position, q) as GameObject).transform);
}
else if (Mathfx.CompareXZ(delta12, Vector3.back))
{
one.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_right") as GameObject, one.position, q) as GameObject).transform);
}
else if (Mathfx.CompareXZ(delta12, Vector3.right) || Mathfx.CompareXZ(delta12, Vector3.left))
{
one.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_straight") as GameObject, one.position, q) as GameObject).transform);
}
}
}
else if (Mathfx.CompareXZ(delta01, Vector3.right))
{
q.eulerAngles = new Vector3(0f, 90f, 0f);
if (one != path[0])
{
if (Mathfx.CompareXZ(delta12, Vector3.forward))
{
one.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_right") as GameObject, one.position, q) as GameObject).transform);
}
else if (Mathfx.CompareXZ(delta12, Vector3.back))
{
one.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_left") as GameObject, one.position, q) as GameObject).transform);
}
else if (Mathfx.CompareXZ(delta12, Vector3.right) || Mathfx.CompareXZ(delta12, Vector3.left))
{
one.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_straight") as GameObject, one.position, q) as GameObject).transform);
}
}
}
n.tile.setHighlightObject((GameObject.Instantiate(Resources.Load("prefabs/path/path_arrow") as GameObject, n.position, q) as GameObject).transform);
}