private void CreateEnemy(EnemySpawnType enemySpawnType)
{
Vector3 enemySpawnPosition = LeftWaveGenerator.transform.position;
Enemy.EnemySpawnPoint spawnPoint = Enemy.EnemySpawnPoint.Left;
if (enemySpawnType == EnemySpawnType.Right)
{
spawnPoint = Enemy.EnemySpawnPoint.Right;
enemySpawnPosition = RightWaveGenerator.transform.position;
}
GameObject newEnemy = GameObject.Instantiate(( GameObject )(Resources.Load("Prefabs/GameEnemy", typeof(GameObject))));
if (newEnemy)
{
newEnemy.name = "Enemy" + currentEnemyIndex;
enemiesList.Add(newEnemy);
newEnemy.transform.position = enemySpawnPosition;
Enemy enemyScript = newEnemy.GetComponent <Enemy>();
if (enemyScript)
{
enemyScript.SpawnPoint = spawnPoint;
enemyScript.SingleEnemyDied += OnEnemyDied;
}
}
}
void FixedUpdate()
{
currentSpawnTimer += Time.fixedDeltaTime;
if (currentSpawnTimer >= BaseSpawnTime)
{
currentSpawnTimer = 0;
float randomNumber = Random.value;
EnemySpawnType spawnType = EnemySpawnType.Left;
if (randomNumber >= 0.5f)
{
spawnType = EnemySpawnType.Right;
}
CreateEnemy(spawnType);
currentEnemyIndex++;
if (currentEnemyIndex % ScalePeriod == 0)
{
IncreaseDifficult();
}
}
}
public void Spawn(string pawn, EnemySpawnType type)
{
switch (type)
{
case EnemySpawnType.AROUND_RANDOM_PLAYER:
// Find a player to spawn at, must not be dead.
Player player;
do
{
player = Player.AllPlayers[Random.Range(0, Player.AllPlayers.Count)];
}while (player == null || player.Health.IsDead);
// Set min and max spawn distances
float minDst = 20f;
float maxDst = 30f;
// Get the player's location.
Vector2 playerPos = ((Vector2)player.transform.position.ToInt()).ClampToWorldIndex(World.Instance);
// Make an offset until it is a valid position...
Vector2 offset;
Vector2 position;
int loop = 0;
do
{
offset = Random.insideUnitCircle.normalized;
offset *= Random.Range(minDst, maxDst);
offset = offset.ToInt();
position = (playerPos + offset).ClampToWorldIndex(World.Instance);
// Avoid infinite loop when the enemy simply can't be spawned...
loop++;
if (loop == 100)
{
Debug.LogError("Enemy {0} can't be spawned after trying to find a spot {1} times! Centered around player {2}. Spawning right on top of player :D".Form(pawn, loop, player.Name));
position = playerPos + new Vector2(0.5f, 0.5f);
break;
}
}while (!World.Instance.TileMap.GetLayer("Foreground").IsSpotWalkable((int)position.x, (int)position.y));
Pawn.SpawnPawn(pawn, position + new Vector2(0.5f, 0.5f));
break;
}
}
// This is only called for enemies.
public IEnumerator SpawnIn(EnemySpawnType spawnType)
{
// Make sure the enemies are spawned with the rotation of the spawn point
// so make it face the direction facing the trigger area for the current
// battle zone.
aiState = AIStates.Spawn;
Vector3 moveDir = myTransform.forward;
// Entered area becomes true after exiting our spawn spot trigger bounds
// for the current area.
while(!_enteredArea)
{
if(spawnType == EnemySpawnType.Normal)
_charMotor.Move(moveDir, false, false);
else if (spawnType == EnemySpawnType.Find_Way && !targetForNavMesh)
targetForNavMesh = FindNearestTarget();
yield return new WaitForSeconds(0.0001f);
}
// We can now target a character.
// I just change the character's name to the name given in the
// corresponding enum. Just a personal preference.
gameObject.name = _charStatus.myCharacterEnemy.ToString ();
aiState = AIStates.Wander;
_charStatus.Vulnerable = true; // We can now be hit.
// We are now added to the enemyTargets list so players can target us.
Manager_Targeting.instance.enemyTargets.Add (myTransform);
StopCoroutine ("SpawnIn");
yield break;
}
