/// <summary>
/// Calculates number of SpawnItems per SpawnEvent, and the spawn grid size.
/// Then give this information to the Spawn System.
/// </summary>
private void SetSpawnGridSize(BiomeConditions biome)
{
// SpawnChunkiness of 0 means one item per spawn event,
// SpawnChunkiness of 1 means one spawnBagSize per spawn event,
int spawnEventCount = (int)(1 + (biome.SpawnChunkiness * (spawnBagSize - 1)));
// Assuming constant SpawnRateMultiplier, then SpawnChunkiness will not change overall density
// Increase in SpawnRateMultiplier lowers the gridSize, which increases density
// SpawnRateMultiplier of 2.0 will double the spawn density.
int spawnGridSize = (int)(Constants.SPAWN_GRID_SIZE * Math.Sqrt(spawnEventCount)
/ Math.Sqrt(biome.SpawnRateMultiplier));
spawnSystem.SetSpawnData(spawnEventCount, spawnGridSize, biome.SpawnRateMultiplier);
}