public void SpawnMonster()
{
// First calculate where to spawn it.
Tile spawnTile = null;
int attempts = 0;
int x = 0;
int y = 0;
// Keep calculating new places to spawn until either exceed the maximum amount of attempts allowed, or you find a valid spawn tile which isn't water.
while ((spawnTile == null || spawnTile.tileType == TileType.Water) && attempts < maxSpawnAttempts)
{
// Get a random direction.
Vector2 dir = (Vector2)Random.onUnitSphere;
dir = dir.normalized;
// Get a random distance.
float distance = Random.Range(minSpawnDistance, maxSpawnDistance);
dir *= distance;
// Figure out the closest tile.
x = GameController.instance.player.x + Mathf.RoundToInt(dir.x);
y = GameController.instance.player.y + Mathf.RoundToInt(dir.y);
// Get that tile.
spawnTile = GetTileAt(x, y);
attempts += 1;
}
// If we failed to find a spawn tile, abort!
if (attempts >= maxSpawnAttempts)
{
return;
}
// Now figure out which monster to spawn based on the biome.
// Generate a random number between 0 and the sum of the weights for this biome.
float sumOfWeights;
biomeEnemySpawnWeightSum.TryGetValue(spawnTile.tileType, out sumOfWeights);
float r = Random.Range(0f, sumOfWeights);
// Sum through all the monster's weights until the sum is more than the random number generated.
EnemyType enemyType = null;
float sum = 0f;
foreach (EnemyType eT in EnemyType.enemyTypes)
{
float weight;
eT.spawnWeights.TryGetValue(spawnTile.tileType, out weight);
sum += weight;
if (sum > r)
{
enemyType = eT;
break;
}
}
if (enemyType == null)
{
Debug.LogError("Item type didn't get chosen for some reason.");
}
// We should now have figured out which enemy type to spawn, so spawn one!
GameObject enemyGO = Instantiate(enemyPrefab);
// Get the enemy component.
Enemy enemy = enemyGO.GetComponent <Enemy> ();
// Now setup all of its values. /// ENEMY SETUP - Add more things? e.g. name / armour.
enemy.maxHealth = enemy.health = enemyType.health;
enemy.attack = enemyType.attack;
enemy.range = enemyType.range;
enemy.x = x; enemy.y = y;
enemy.transform.position = new Vector3(enemy.x, enemy.y, -1);
// Get the sprite renderer, and set the enemy's sprite.
enemy.GetComponent <SpriteRenderer> ().sprite = enemyType.GetSprite();
// Should be done.
}
