private void OnCollisionEnter2D(Collision2D collision)
{
if (collision.gameObject.CompareTag("Brick"))
{
Vector3Int tileHit, adjacentTileHit;
Vector3 normal = Vector3.zero, point;
//Get contacts
ContactPoint2D[] contacts = new ContactPoint2D[collision.contactCount];
collision.GetContacts(contacts);
//Check that the normal vector for all contact points is the same
if (contacts.All(c => Math.Round(c.normal.x) == Math.Round(contacts[0].normal.x)) &&
contacts.All(c => Math.Round(c.normal.y) == Math.Round(contacts[0].normal.y)))
{
normal = new Vector3(contacts[0].normal.x, contacts[0].normal.y);
}
//if contacts have different normals, default to opposite direction player is facing, eg.: (-1,0) when player is facing right
else
{
GameObject player = GameObject.FindGameObjectWithTag("Player");
float direction = player.transform.localRotation.eulerAngles.z;
switch ((int)direction)
{
case 0:
normal = new Vector3(-1, 0, 0);
break;
case 90:
case -270:
normal = new Vector3(0, 1, 0);
break;
case 180:
case -180:
normal = new Vector3(1, 0, 0);
break;
case -90:
case 270:
normal = new Vector3(0, -1, 0);
break;
default:
throw new Exception();
}
}
float correction = .5f;
point = new Vector3(contacts.Average(c => c.point.x - (correction * normal.x)),
(contacts.Average(c => c.point.y - (correction * normal.y))));
Tilemap tilemap = collision.gameObject.GetComponent <Tilemap>();
tileHit = tilemap.WorldToCell(point);
adjacentTileHit = tilemap.WorldToCell(GetAdjacentTile(normal, tileHit));
tilemap.SetTile(tileHit, null);
tilemap.SetTile(adjacentTileHit, null);
if (firedByPlayer)
{
SoundManager.PlaySfx(SFX.ProjectileHitsBrick);
}
}
//Enemy is hit by player's bullet
else if (collision.gameObject.CompareTag("Enemy") && firedByPlayer && collision.gameObject != shooter)
{
int health = collision.gameObject.GetComponent <EnemyProperties>().armor;
health--;
if (health == 0)
{
if (collision.gameObject.GetComponent <EnemyProperties>().hasPU&& !collision.gameObject.GetComponent <EnemyProperties>().alreadySpawnedPU)
{
PowerUpController.SpawnPowerup();
collision.gameObject.GetComponent <EnemyProperties>().alreadySpawnedPU = true;
}
explosion.transform.localPosition = collision.gameObject.transform.localPosition;
Instantiate(explosion);
if (collision.gameObject.GetComponent <EnemyProperties>().enemyType == EnemyType.Armored)
{
SoundManager.PlaySfx(SFX.ExplosionEnemyArmored);
}
else
{
SoundManager.PlaySfx(SFX.ExplosionEnemyRegular);
}
Destroy(collision.gameObject);
LevelEndManager.IncreaseKillCount();
}
else
{
if (collision.gameObject.GetComponent <EnemyProperties>().enemyType == EnemyType.Armored)
{
SoundManager.PlaySfx(SFX.DamageArmor);
}
collision.gameObject.GetComponent <EnemyProperties>().armor = health;
}
}
//Player is hit by a bullet that is not his own
else if (collision.gameObject.CompareTag("Player") && collision.gameObject != shooter)
{
if (!ArmorController.GetInvulnerabilityStatus())
{
ArmorController.TakeDamage();
if (ArmorController.GetArmor() == 0)
{
explosion.transform.localPosition = collision.gameObject.transform.localPosition;
PlayerController.ResetPlayerStats();
Instantiate(explosion);
LivesController.DecreaseLives();
SoundManager.PlaySfx(SFX.ExplosionPlayer);
}
else
{
SoundManager.PlaySfx(SFX.DamageArmor);
}
}
}
//Bullet hits eagle
else if (collision.gameObject.CompareTag("Eagle") && LevelManager.GetEagleStatus())
{
Animator eagleAnim = GameObject.FindGameObjectWithTag("Eagle").GetComponent <Animator>();
GameObject[] players = GameObject.FindGameObjectsWithTag("Player");
eagleAnim.SetBool("isEagleDestroyed", true);
SoundManager.Stop();
SoundManager.PlaySfx(SFX.ExplosionEagle);
LevelEndManager.ShowLevelEndScreen(Outcome.Defeat);
logicController.GetComponent <PlayerController>().enabled = false;
logicController.GetComponent <WeaponsController>().enabled = false;
GameObject.FindGameObjectWithTag("Player").GetComponent <Rigidbody2D>().velocity = Vector2.zero;
GameObject.FindGameObjectWithTag("Player").GetComponent <BoxCollider2D>().enabled = false;
GameObject.FindGameObjectWithTag("Player").GetComponent <Animator>().enabled = false;
LevelManager.SetEagleStatus(false);
}
else if ((collision.gameObject.CompareTag("Concrete") || collision.gameObject.CompareTag("Boundary")) && firedByPlayer)
{
SoundManager.PlaySfx(SFX.ProjectileHitsWall);
}
if (collision.gameObject != shooter)
{
gameObject.SetActive(false);
}
}
