// Handle on trigger event
private void OnTriggerEnter2D(Collider2D collision)
{
// check if Pacman touches a portal
if (collision.gameObject.tag == "Waypoint")
{
Waypoint waypoint = collision.gameObject.GetComponent <Waypoint>();
// teleport to target portal
if (waypoint.isPortal) // if pacman touches a portal, change position to destination portal
{
Vector2 targetPortalPosition = waypoint.targetPortal.GetComponent <Transform>().position;
transform.position = targetPortalPosition;
}
}
// consume balls when touch and play sound
if (collision.gameObject.tag == "SmallBall")
{
if (!chompSound.isPlaying)
{
chompSound.Play();
}
gameData.ConsumeSmallBall(isPlayer1);
Destroy(collision.gameObject);
}
// if pacman consume a big ball, all ghost will change into frightened mode
if (collision.gameObject.tag == "BigBall")
{
GameObject[] ghosts = GameObject.FindGameObjectsWithTag("Ghost");
foreach (GameObject ghost in ghosts)
{
ghost.GetComponent <Ghost>().BecomeScared();
}
gameData.ConsumeBigBall(isPlayer1);
Destroy(collision.gameObject);
}
// add points when consuming Fruits
if (collision.gameObject.tag == "Fruit")
{
if (!eatFruitSound.isPlaying)
{
eatFruitSound.Play();
}
Fruit fruit = (Fruit)collision.gameObject.GetComponent <Fruit>();
gameData.ConsumeFruit(fruit, isPlayer1);
}
// touch ghost
if (collision.gameObject.tag == "Ghost")
{
Ghost ghost = collision.gameObject.GetComponent <Ghost>();
// if the ghost is frightened, consume it to gain points and play sound
if (ghost.mode == Ghost.GhostMode.Frightened)
{
if (!eatGhostSound.isPlaying)
{
eatGhostSound.Play();
}
gameData.ConsumeGhost(isPlayer1);
ghost.BecomeScatter();
}
else if (ghost.mode != Ghost.GhostMode.Scatter) // if the ghost is scattered, nothing happens, else pacman dies
{
if (!deathSound.isPlaying)
{
deathSound.Play();
}
if (collisionParticle.gameObject.activeSelf == false)
{
collisionParticle.gameObject.SetActive(true);
}
// play particle effect when pacman die
collisionParticle.transform.position = gameObject.transform.position;
collisionParticle.Play();
gameObject.SetActive(false);
gameData.isOver = true;
// define winner in Battle mode if 1 player dies
if (gameData.currentMode == GameData.Mode.BattleMode)
{
gameData.gameResult = (isPlayer1) ? GameData.GameResult.Player2Win : GameData.GameResult.Player1Win;
}
else // in classic and innovative mode, play will lose
{
gameData.gameResult = GameData.GameResult.Lose;
}
}
}
}