public IEnumerable <SpawnPoint> GetSpawnPoints(SpawnerStateSetting setting, Location location, WIGroup spawnGroup, PlayerBase player, System.Random random)
{
//figure out how many we need
setting.NumAttempts = 0;
setting.NumFailedAttempts = 0;
int numExistingObjects = spawnGroup.NumChildItemsByCategory(setting.CategoryName, setting.MaxSpawnedObjects); //TODO make sure this works
int numObjectsToSpawn = random.Next(setting.MinSpawnedObjects, setting.MaxSpawnedObjects) - numExistingObjects;
if (numObjectsToSpawn <= 0)
{
//we don't need any more right now
#if UNITY_EDITOR
Debug.Log("Skipping spawning in " + name + " because num objects to spawn is <= 0");
#endif
yield break;
}
bool succeededThisAttempt = false;
switch (setting.Type)
{
case SpawnerType.Characters:
//when we're spawning characters, we need action nodes
WorldChunk chunk = spawnGroup.GetParentChunk();
List <ActionNodeState> nodeStates = null;
if (chunk.GetNodesForLocation(location.worlditem.StaticReference.FullPath, out nodeStates))
{
for (int i = 0; i < nodeStates.Count; i++)
{
mNextSpawnPoint.nodeState = nodeStates [i];
yield return(mNextSpawnPoint);
}
}
else
{
nodeStates = new List <ActionNodeState> ();
Debug.Log("Didn't find spawn points at location, so we're going to create some");
//if we can't find any nodes for this location
//that means we've never spawned here before
//we need to create some nodes
for (int i = 0; i < numObjectsToSpawn; i++)
{
//are we totally done?
if (setting.NumFailedAttempts >= setting.MaxFailedAttempts)
{
yield break;
}
//if not, try to get another spawn point
if (spawnGroup.Props.Interior)
{
succeededThisAttempt = GetInteriorSpawnPoint(ref mNextSpawnPoint, setting, location, spawnGroup);
}
else if (spawnGroup.Props.TerrainType == LocationTerrainType.AboveGround)
{
succeededThisAttempt = GetAboveGroundSpawnPoint(ref mNextSpawnPoint, setting, location, spawnGroup);
}
else
{
succeededThisAttempt = GetBelowGroundSpawnPoint(ref mNextSpawnPoint, setting, location, spawnGroup);
}
//did we do it?
if (succeededThisAttempt)
{
//hooray we created a new action node
setting.NumAttempts++;
//turn this spawn point into an action node
ActionNodeState nodeState = new ActionNodeState();
nodeState.Name = location.worlditem.FileName + "-Spawn-" + nodeStates.Count.ToString();
nodeState.Type = ActionNodeType.Generic;
nodeState.Users = ActionNodeUsers.AnyOccupant;
nodeState.Transform.CopyFrom(mNextSpawnPoint.Transform);
mNextSpawnPoint.nodeState = nodeState;
ActionNode node = chunk.SpawnActionNode(spawnGroup, nodeState, location.worlditem.tr);
yield return(mNextSpawnPoint);
}
else
{
//boo, we failed
setting.NumFailedAttempts++;
}
}
}
nodeStates.Clear();
nodeStates = null;
break;
default:
//when we're spawning other things, we just need spawn points
//ok, try to spawn this stuff
for (int i = 0; i < numObjectsToSpawn; i++)
{
//are we totally done?
if (setting.NumFailedAttempts >= setting.MaxFailedAttempts)
{
yield break;
}
//if not, try to get another spawn point
if (spawnGroup.Props.Interior)
{
succeededThisAttempt = GetInteriorSpawnPoint(ref mNextSpawnPoint, setting, location, spawnGroup);
}
else if (spawnGroup.Props.TerrainType == LocationTerrainType.AboveGround)
{
succeededThisAttempt = GetAboveGroundSpawnPoint(ref mNextSpawnPoint, setting, location, spawnGroup);
}
else
{
succeededThisAttempt = GetBelowGroundSpawnPoint(ref mNextSpawnPoint, setting, location, spawnGroup);
}
//did we do it?
if (succeededThisAttempt)
{
//hooray, we got another spawn point
setting.NumAttempts++;
yield return(mNextSpawnPoint);
}
else
{
//boo, we failed
setting.NumFailedAttempts++;
yield return(SpawnPoint.Empty);
}
}
break;
}
yield break;
}
