private static void CreateOrDestroyEntities(EcsWorld world, EcsFilter filter, int count, Action <EcsWorld> createEntity)
{
IEcsGroup group = world.Filter(filter);
if (group.CalculateCount() == count)
{
return;
}
IEcsEntity[] entities = group.ToEntityArray();
for (int i = entities.Length; i < count; i++)
{
createEntity(world);
}
for (int i = count; i < entities.Length; i++)
{
IEcsEntity entity = entities[i];
BroadphaseRefComponent brRef = entity.GetComponent <BroadphaseRefComponent>();
CharacterComponent character = entity.GetComponent <CharacterComponent>();
Object.Destroy(character.Ref.gameObject);
foreach (SAPChunk chunk in brRef.Chunks)
{
BroadphaseHelper.RemoveFormChunk(chunk, entity.Id);
}
entity.Destroy();
}
}
public unsafe void Update(float deltaTime, EcsWorld world)
{
BroadphaseSAPComponent bpChunks = world.GetOrCreateSingleton <BroadphaseSAPComponent>();
IEcsEntity[] entities = world.Filter(_entitiesFilter).ToEntityArray();
for (int i = 0; i < entities.Length; i++)
{
IEcsEntity entity = entities[i];
uint entityId = entity.Id;
TransformComponent tr = entity.GetComponent <TransformComponent>();
ColliderComponent col = entity.GetComponent <ColliderComponent>();
RigBodyComponent rig = entity.GetComponent <RigBodyComponent>();
AABB aabb = new AABB(col.Size, tr.Position, col.ColliderType == ColliderType.Rect ? tr.Rotation : 0f);
bool isStatic = MathHelper.Equal(rig.InvMass, 0);
int layer = col.Layer;
List <SAPChunk> chunks = new List <SAPChunk>(4);
foreach (int chunkId in BroadphaseHelper.GetChunks(aabb))
{
chunks.Add(BroadphaseHelper.GetOrCreateChunk(chunkId, bpChunks));
}
BroadphaseRefComponent bpRef = new BroadphaseRefComponent
{
Chunks = chunks,
ChunksHash = BroadphaseHelper.CalculateChunksHash(aabb),
AABB = aabb
};
entity.AddComponent(bpRef);
foreach (SAPChunk chunk in chunks)
{
if (chunk.Length >= chunk.Items.Length)
{
Array.Resize(ref chunk.Items, 2 * chunk.Length);
fixed(AABB *pAABB = &bpRef.AABB)
{
chunk.Items[chunk.Length++] = new BroadphaseAABB
{
AABB = pAABB,
Id = entityId,
IsStatic = isStatic,
Layer = layer,
Entity = entity
};
}
if (!isStatic)
chunk.DynamicCounter++; }
}
}
}
