private static void DoSpawn(WorldManager world, HashSet <int> chunksToSpawnIn, Mob[] mobEntities, List <WeightedValue <MobType> > mobGroup, int maximumMobs, bool inWater = false)
{
// Based on original server spawn logic and minecraft wiki (http://www.minecraftwiki.net/wiki/Spawn)
// Check that we haven't already reached the maximum number of this type of mob
if (mobGroup.Count > 0 && (mobEntities.Where(e => mobGroup.Where(mob => mob.Value == e.Type).Any()).Count() <= maximumMobs * chunksToSpawnIn.Count / 256))
{
foreach (var packedChunk in chunksToSpawnIn)
{
MobType mobType = mobGroup.SelectRandom(world.Server.Rand);
UniversalCoords packSpawnPosition = GetRandomPointInChunk(world, UniversalCoords.FromPackedChunkToX(packedChunk), UniversalCoords.FromPackedChunkToZ(packedChunk));
byte?blockId = world.GetBlockId(packSpawnPosition);
if (blockId == null)
{
continue;
}
BlockBase blockClass = BlockHelper.Instance.CreateBlockInstance((byte)blockId);
if (!blockClass.IsOpaque && ((!inWater && blockClass.Type == BlockData.Blocks.Air) || (inWater && blockClass.IsLiquid))) // Lava is Opaque, so IsLiquid is safe to use here for water & still water
{
int spawnedCount = 0;
int x = packSpawnPosition.WorldX;
int y = packSpawnPosition.WorldY;
int z = packSpawnPosition.WorldZ;
for (int i = 0; i < 21; i++)
{
// Every 4th attempt reset the coordinates to the centre of the pack spawn
if (i % 4 == 0)
{
x = packSpawnPosition.WorldX;
y = packSpawnPosition.WorldY;
z = packSpawnPosition.WorldZ;
}
const int distance = 6;
x += world.Server.Rand.Next(distance) - world.Server.Rand.Next(distance);
y += world.Server.Rand.Next(1) - world.Server.Rand.Next(1);
z += world.Server.Rand.Next(distance) - world.Server.Rand.Next(distance);
if (CanMobTypeSpawnAtLocation(mobType, world, x, y, z))
{
AbsWorldCoords spawnPosition = new AbsWorldCoords(x + 0.5, y, z + 0.5);
// Check that no player is within a radius of 24 blocks of the spawnPosition
if (world.GetClosestPlayer(spawnPosition, 24.0) == null)
{
// Check that the squared distance is more than 576 from spawn (24 blocks)
if (spawnPosition.ToVector().DistanceSquared(new AbsWorldCoords(world.Spawn).ToVector()) > 576.0)
{
Mob newMob = MobFactory.Instance.CreateMob(world, world.Server,
mobType) as Mob;
if (newMob == null)
{
break;
}
newMob.Position = spawnPosition;
newMob.Yaw = world.Server.Rand.NextDouble() * 360.0;
// Finally apply any mob specific rules about spawning here
if (newMob.CanSpawnHere())
{
//Event
EntitySpawnEventArgs e = new EntitySpawnEventArgs(newMob, newMob.Position);
world.Server.PluginManager.CallEvent(Event.EntitySpawn, e);
if (e.EventCanceled)
{
continue;
}
newMob.Position = e.Location;
//End Event
++spawnedCount;
MobSpecificInitialisation(newMob, world, spawnPosition);
world.Server.AddEntity(newMob);
if (spawnedCount >= newMob.MaxSpawnedPerGroup)
{
// This chunk is full - move to the next
break;
}
}
}
}
}
}
}
}
}
}
