private IEnumerable <Entity> SpawnEntitiesUsingRandomDistribution(EntitySpawnPoint entitySpawnPoint, List <UwePrefab> prefabs, DeterministicBatchGenerator deterministicBatchGenerator)
{
List <UwePrefab> allowedPrefabs = FilterAllowedPrefabs(prefabs, entitySpawnPoint);
float rollingProbabilityDensity = allowedPrefabs.Sum(prefab => prefab.Probability / entitySpawnPoint.Density);
if (rollingProbabilityDensity <= 0)
{
yield break;
}
double randomNumber = deterministicBatchGenerator.NextDouble();
if (rollingProbabilityDensity > 1f)
{
randomNumber *= rollingProbabilityDensity;
}
double rollingProbability = 0;
UwePrefab selectedPrefab = allowedPrefabs.FirstOrDefault(prefab =>
{
if (prefab.Probability == 0)
{
return(false);
}
float probabilityDensity = prefab.Probability / entitySpawnPoint.Density;
rollingProbability += probabilityDensity;
return(rollingProbability >= randomNumber);
});
if (selectedPrefab == null)
{
yield break;
}
Optional <UweWorldEntity> opWorldEntity = worldEntityFactory.From(selectedPrefab.ClassId);
if (opWorldEntity.IsPresent())
{
UweWorldEntity uweWorldEntity = opWorldEntity.Get();
for (int i = 0; i < selectedPrefab.Count; i++)
{
IEnumerable <Entity> entities = CreateEntityWithChildren(entitySpawnPoint,
uweWorldEntity.Scale,
uweWorldEntity.TechType,
uweWorldEntity.CellLevel,
selectedPrefab.ClassId,
deterministicBatchGenerator);
foreach (Entity entity in entities)
{
yield return(entity);
}
}
}
}
private void CreatePrefabPlaceholdersWithChildren(Entity entity, string classId, DeterministicBatchGenerator deterministicBatchGenerator)
{
PrefabPlaceholdersGroupAsset group;
// Check to see if this entity is a PrefabPlaceholderGroup. If it is,
// we want to add the children that would be spawned here. This is
// surpressed on the client so we don't get virtual entities that the
// server doesn't know about.
if (prefabPlaceholderGroupsbyClassId.TryGetValue(classId, out group))
{
foreach (PrefabAsset prefab in group.SpawnablePrefabs)
{
TransformAsset transform = prefab.TransformAsset;
Optional <UweWorldEntity> opWorldEntity = worldEntityFactory.From(prefab.ClassId);
if (!opWorldEntity.HasValue)
{
Log.Debug("Unexpected Empty WorldEntity! " + prefab.ClassId);
continue;
}
UweWorldEntity worldEntity = opWorldEntity.Value;
Entity prefabEntity = new Entity(transform.LocalPosition,
transform.LocalRotation,
transform.LocalScale,
worldEntity.TechType,
worldEntity.CellLevel,
prefab.ClassId,
true,
deterministicBatchGenerator.NextId(),
null,
entity);
if (prefab.EntitySlot.HasValue)
{
Entity possibleEntity = SpawnEntitySlotEntities(prefab.EntitySlot.Value, transform, deterministicBatchGenerator, entity);
if (possibleEntity != null)
{
entity.ChildEntities.Add(possibleEntity);
}
}
CreatePrefabPlaceholdersWithChildren(prefabEntity, prefabEntity.ClassId, deterministicBatchGenerator);
entity.ChildEntities.Add(prefabEntity);
}
entity.ChildEntities.AddRange(ConvertComponentPrefabsToEntities(group.ExistingPrefabs, entity, deterministicBatchGenerator));
}
}
public override Optional <UweWorldEntity> From(string classId)
{
if (worldEntitiesByClassId.TryGetValue(classId, out WorldEntityInfo worldEntityInfo))
{
UweWorldEntity uweWorldEntity = new UweWorldEntity(worldEntityInfo.techType.ToDto(),
worldEntityInfo.localScale.ToDto(),
worldEntityInfo.classId,
worldEntityInfo.slotType.ToString(),
(int)worldEntityInfo.cellLevel);
return(Optional.Of(uweWorldEntity));
}
return(Optional.Empty);
}
private void AssignPlaceholderEntitiesIfRequired(Entity entity, string classId, DeterministicBatchGenerator deterministicBatchGenerator)
{
List <PrefabAsset> prefabs;
// Check to see if this entity is a PrefabPlaceholderGroup. If it is,
// we want to add the children that would be spawned here. This is
// surpressed on the client so we don't get virtual entities that the
// server doesn't know about.
if (placeholderPrefabsByGroupClassId.TryGetValue(classId, out prefabs))
{
foreach (PrefabAsset prefab in prefabs)
{
TransformAsset transform = prefab.TransformAsset;
Optional <UweWorldEntity> opWorldEntity = worldEntityFactory.From(prefab.ClassId);
if (opWorldEntity.IsEmpty())
{
Log.Debug("Unexpected Empty WorldEntity! " + prefab.ClassId);
continue;
}
UweWorldEntity worldEntity = opWorldEntity.Get();
Entity prefabEntity = new Entity(transform.LocalPosition,
transform.LocalRotation,
transform.LocalScale,
worldEntity.TechType,
worldEntity.CellLevel,
prefab.ClassId,
true,
deterministicBatchGenerator.NextId(),
entity);
entity.ChildEntities.Add(prefabEntity);
}
}
}
// Entities that have been spawned by a parent prefab (child game objects baked into the prefab).
// created separately as we don't actually want to spawn these but instead just update the id.
// will refactor this piece a bit later to split these into a new data structure.
private List <Entity> ConvertComponentPrefabsToEntities(List <PrefabAsset> prefabs, Entity parent, DeterministicBatchGenerator deterministicBatchGenerator, ref List <PrefabAsset> spawnablePrefabs)
{
List <Entity> entities = new List <Entity>();
int counter = 0;
foreach (PrefabAsset prefab in prefabs)
{
TransformAsset transform = prefab.TransformAsset;
Entity prefabEntity = new Entity(transform.LocalPosition,
transform.LocalRotation,
transform.LocalScale,
new NitroxTechType("None"),
1,
prefab.ClassId,
true,
deterministicBatchGenerator.NextId(),
counter++,
parent);
// Checkes if the current object being setup is a Placeholder object.
// MrPurple6411 Verified All Placeholders use this in the name. (verified in SN1 did not check BZ yet)
if (prefab.Name.Contains("(Placeholder)"))
{
// Finds the matching prefab that the placeholder is supposed to spawn.
PrefabAsset spawnablePrefab = spawnablePrefabs.Find((x) => x.TransformAsset == transform);
if (spawnablePrefab != null)
{
Optional <UweWorldEntity> opWorldEntity = worldEntityFactory.From(spawnablePrefab.ClassId);
if (!opWorldEntity.HasValue)
{
Log.Debug($"Unexpected Empty WorldEntity! {spawnablePrefab.Name}-{spawnablePrefab.ClassId}");
continue;
}
UweWorldEntity worldEntity = opWorldEntity.Value;
Entity spawnableprefabEntity = new Entity(transform.LocalPosition,
transform.LocalRotation,
transform.LocalScale,
worldEntity.TechType,
worldEntity.CellLevel,
spawnablePrefab.ClassId,
true,
deterministicBatchGenerator.NextId(),
null,
parent);
if (spawnablePrefab.EntitySlot.HasValue)
{
Entity possibleEntity = SpawnEntitySlotEntities(spawnablePrefab.EntitySlot.Value, transform, deterministicBatchGenerator, parent);
if (possibleEntity != null)
{
parent.ChildEntities.Add(possibleEntity);
}
}
// Setup any children this object may have attached to it.
CreatePrefabPlaceholdersWithChildren(spawnableprefabEntity, spawnableprefabEntity.ClassId, deterministicBatchGenerator);
// Add the object to the child list that that is being returned by this method.
entities.Add(spawnableprefabEntity);
// remove prefab from placeholder list so it is not duplicated later by mistake.
spawnablePrefabs.Remove(spawnablePrefab);
}
else
{
Log.Error($"Unable to find matching spawnable prefab for Placeholder {prefab.Name}");
}
}
prefabEntity.ChildEntities = ConvertComponentPrefabsToEntities(prefab.Children, prefabEntity, deterministicBatchGenerator, ref spawnablePrefabs);
entities.Add(prefabEntity);
}
return(entities);
}
