// set clone flags to match cyclic flags
void CopyFlags(CyclicMoveable cyclic, CyclicMoveable clone)
{
clone.collisionRight = cyclic.collisionRight;
clone.collisionLeft = cyclic.collisionLeft;
clone.collisionTop = cyclic.collisionTop;
clone.collisionBottom = cyclic.collisionBottom;
}
// Instantiate new CyclicMoveable object at the exact opposite position to create the cyclic effect
public void HandleEnterCyclic(CyclicMoveable cyclic, Vector3 pos)
{
CyclicMoveable clone;
if (cyclic.GetComponent <SpaceShip>())
{
clone = Instantiate(spaceshipPrefab, pos, cyclic.transform.rotation);
if (cyclic.isShooting)
{
clone.isShootingAndCyclic = true;
// this allows the "clone"(new) spaceship to continue shooting if "cyclic"(old) spaceShip is in shutting state when collide
// if "space" is pressed
}
}
else if (cyclic.CompareTag("blue"))
{
clone = Instantiate(asteroidBluePrefab, pos, cyclic.transform.rotation);
}
else if (cyclic.CompareTag("red"))
{
clone = Instantiate(asteroidRedPrefab, pos, cyclic.transform.rotation);
}
else
{
Debug.Log("unexpected tag: " + tag);
return;
}
CopyFlags(cyclic, clone); // clone needs cyclic flags to ignore coliisions with other colliders (corners)
TurnFlagOn(cyclic, clone); // cyclic needs to "ignore" this collider and clone needs to ignore the opposite collider
}
// OnTriggerEnter: Moveable objects will be instantiated at the exact opposite position on the scrren (cyclic effect)
public void OnTriggerEnter(Collider other)
{
cyclicObj = other.gameObject.GetComponent <CyclicMoveable>(); // CyclicMoveable: spaceship or asteroid
if (cyclicObj && !CollideFlag(cyclicObj))
{
// CollideFlag == false : when CyclicMoveable object moved thourds this collider and hit it
// CollideFlag == true : when CyclicMoveable object instantiated inside this collider (we want to ignore)
Vector3 pos = CyclicPosition(cyclicObj.transform.position);
HandleEnterCyclic(cyclicObj, pos);
}
}
// Destroy CyclicMoveable object it it had left the play area
public void HandleExitCyclic(CyclicMoveable cyclic)
{
TurnFlagOff(cyclic);
if (IsFlagsFalse(cyclic)) // if cyclic object has all flags off (exit all colliders)
{
if (IsPosOutsideScreen(cyclic.transform.position))
// spaceship can rotate while colliding
// so on exit it will still be inside the frame
// for asteroids IsPosOutsideScreen will be true
{
cyclic.SelfDestruct(disableRedChainReaction); // disableRedChainReaction = false;
// when red asteroid destoy becouse its outdie screen are we dont need chain reaction explosion
}
}
}
// OnTriggerExit: Asteroids, Bullets and PickableItems will be destroid.
// SpaceShip will be destroid if it's ouside (means that there is another spaceship inside)
// Spaceship will not be destroid if it's inside play area (SpaceShip can rotate while colliding)
public void OnTriggerExit(Collider other)
{
cyclicObj = other.gameObject.GetComponent <CyclicMoveable>();
if (cyclicObj)
{
HandleExitCyclic(cyclicObj);
return;
}
bullet = other.gameObject.GetComponent <Bullet>();
if (bullet && IsPosOutsideScreen(bullet.transform.position))
{
bullet.Selfdestruct();
return;
}
pickable = other.gameObject.GetComponent <PickableItem>();
if (pickable && IsPosOutsideScreen(pickable.transform.position))
{
pickable.Selfdestruct();
}
}
// Set true at cyclic flag matching to this collider // Set true at clone opposite flag (right - left) (top - bottom) public abstract void TurnFlagOn(CyclicMoveable cyclic, CyclicMoveable clone);
// return collide flag (collisionRight / collisionLeft / collisionTop / collisionBottom) public abstract bool CollideFlag(CyclicMoveable cyclic);
// Set false at cyclic flag matching to the collider (Right / Left / Top / Bottom) public abstract void TurnFlagOff(CyclicMoveable cyclic);
// return true if all 4 flags false
bool IsFlagsFalse(CyclicMoveable cyclic)
{
return(!(cyclic.collisionRight || cyclic.collisionLeft || cyclic.collisionTop || cyclic.collisionBottom));
}
public override bool CollideFlag(CyclicMoveable cyclic)
{
return(cyclic.collisionRight);
}
// Set true at cyclic flag matching to this collider
// Set true at clone opposite flag (right - left) (top - bottom)
public override void TurnFlagOn(CyclicMoveable cyclic, CyclicMoveable clone)
{
cyclic.collisionRight = true;
clone.collisionLeft = true;
}
public override void TurnFlagOff(CyclicMoveable cyclic)
{
cyclic.collisionRight = false;
}
// Set true at cyclic flag matching to this collider
// Set true at clone opposite flag (right - left) (top - bottom)
public override void TurnFlagOn(CyclicMoveable cyclic, CyclicMoveable clone)
{
cyclic.collisionBottom = true;
clone.collisionTop = true;
}
