void OnTriggerEnter2D(Collider2D other)
{
//Make sure the object is allowed to go through the portal before we let it
CanEnterPortal portalObject = other.GetComponent <CanEnterPortal>();
if (portalObject != null)
{
//Make the portal edges and position them correctly
top = Instantiate(portalEdgePrefab.gameObject).GetComponent <Rigidbody2D>();
bottom = Instantiate(portalEdgePrefab.gameObject).GetComponent <Rigidbody2D>();
float dx = GetComponent <BoxCollider2D>().size.x *trans.localScale.x / 2 + top.GetComponent <Collider2D>().bounds.size.x / 2;
dx *= -1;
float dy = GetComponent <BoxCollider2D>().size.y *trans.localScale.y / 2 + top.GetComponent <Collider2D>().bounds.size.y;
float a = body.rotation * Mathf.PI / 180;
top.GetComponent <Transform>().position = new Vector3(body.position.x + Mathf.Cos(a) * dx + Mathf.Sin(a) * dy,
body.position.y + Mathf.Cos(a) * dy + Mathf.Sin(a) * dx, 0);
bottom.GetComponent <Transform>().position = new Vector3(body.position.x + Mathf.Cos(a) * dx + Mathf.Sin(a) * -dy,
body.position.y + Mathf.Cos(a) * -dy + Mathf.Sin(a) * dx, 0);
top.rotation = body.rotation;
bottom.rotation = body.rotation;
//Turn off collision to allow it through
Physics2D.IgnoreCollision(other.GetComponent <Collider2D>(), on, true);
//Duplicate the object going through the portal, so that it will appear at both ends
portalObject.updateOther(this, otherPortal);
}
}
void OnTriggerEnter2D(Collider2D other)
{
//Make sure the object is allowed to go through the portal before we let it
CanEnterPortal portalObject = other.GetComponent <CanEnterPortal>();
if (portalObject != null && otherPortal != null)
{
//Teleport to other portal
//Position it correctly
Rigidbody2D objectBody = portalObject.GetComponent <Rigidbody2D>();
float relX = objectBody.position.x - body.position.x; //positive if to the right
float relY = objectBody.position.y - body.position.y; //positive if above
float a = body.rotation * Mathf.PI / 180;
float dx = Mathf.Cos(a) * relX + Mathf.Sin(a) * relY; // + body.GetComponent<BoxCollider2D>().size.x * body.transform.localScale.x;
float dy = Mathf.Cos(a) * relY + Mathf.Sin(a) * relX;
// dy *= -1;
float a2 = otherPortal.body.rotation * Mathf.PI / 180;
float x = otherPortal.body.position.x + Mathf.Cos(a2) * dx + Mathf.Sin(a2) * dy;
float y = otherPortal.body.position.y + Mathf.Cos(a2) * dy + Mathf.Sin(a2) * dx;
objectBody.position = new Vector3(x, y, 0);
//TODO: Transfer velocity
//TODO: Angels
//Note that velocities are equal of portal is pointing opposite direction
}
}
public void updateOther(Portal enter, Portal exit)
{
if (other == null)
{
Rigidbody2D bodyEnter = enter.GetComponent <Rigidbody2D>();
Rigidbody2D bodyExit = exit.GetComponent <Rigidbody2D>();
Rigidbody2D body = GetComponent <Rigidbody2D>();
//Duplicate self
other = Instantiate(gameObject).GetComponent <CanEnterPortal>();
//Ignore collisions with the other wall
Physics2D.IgnoreCollision(other.GetComponent <Collider2D>(), exit.on);
Rigidbody2D bodyOther = other.GetComponent <Rigidbody2D>();
other.other = this;
//Position it correctly
//float dx = bodyExit.GetComponent<Collider2D>().bounds.size.x;
//TODO: Use angle instead
if (exit.isLeft)
{
// dx *= -1;
}
float relX = body.position.x - bodyEnter.position.x; //positive if to the right
float relY = body.position.y - bodyEnter.position.y; //positive if above
float a = bodyEnter.rotation * Mathf.PI / 180;
float dx = Mathf.Cos(a) * relX + Mathf.Sin(a) * relY + bodyEnter.GetComponent <BoxCollider2D>().size.x *bodyEnter.transform.localScale.x;
float dy = Mathf.Cos(a) * relY + Mathf.Sin(a) * relX;
float a2 = bodyEnter.rotation * Mathf.PI / 180;
float x = bodyExit.position.x + Mathf.Cos(a) * dx + Mathf.Sin(a) * dy;
float y = bodyExit.position.y + Mathf.Cos(a) * dy + Mathf.Sin(a) * dx;
bodyOther.position = new Vector3(x, y, 0);
//Transfer velocity
//TODO: Angels
//Note that velocities are equal of portal is pointing opposite direction
bodyOther.velocity = body.velocity;
}
}
void OnTriggerExit2D(Collider2D other)
{
CanEnterPortal portalObject = other.GetComponent <CanEnterPortal>();
if (portalObject != null)
{
Destroy(top.gameObject);
Destroy(bottom.gameObject);
Physics2D.IgnoreCollision(other.GetComponent <Collider2D>(), on, false);
//TODO: Make this work with angles
/*
* Pseudocode
*
* Get angle between center of portal and center of object
* If this angle between angle of portal +-90, we are good to go
*
*
*/
Rigidbody2D otherBody = other.GetComponent <Rigidbody2D>();
float dx = otherBody.position.x - body.position.x;
float dy = otherBody.position.y - body.position.y;
float a = body.rotation; // in degrees
float a0 = a - 90;
float a2 = a + 90;
float a1 = Mathf.Atan(dy / dx) * 180 / Mathf.PI; //from -90 to + 90
if (dx < 0)
{
a1 += 180;
}
if (a1 < 0)
{
a1 += 360;
}
if (a < 0)
{
a += 360;
}
if (a1 - a > -90 && a1 - a < 90)
{
portalObject.destroyOther();
}
else
{
portalObject.detatch();
Destroy(portalObject.gameObject);
}
}
}
