public void AddComponent <T>(Entity e, Component component) where T : Component
{
ComponentType type = ComponentTypeManager.GetTypeFor <T>();
if (type.GetId() >= componentsByType.GetCapacity())
{
componentsByType.Set(type.GetId(), null);
}
Bag <Component> components = componentsByType.Get(type.GetId());
if (components == null)
{
components = new Bag <Component>();
componentsByType.Set(type.GetId(), components);
}
components.Set(e.GetId(), component);
e.AddTypeBit(type.GetBit());
if (AddedComponentEvent != null)
{
AddedComponentEvent(e, component);
}
}
/**
* @param e entity
* @return the name of the group that this entity belongs to, null if none.
*/
public String GetGroupOf(Entity e)
{
int entityId = e.GetId();
if (entityId < groupByEntity.GetCapacity())
{
return(groupByEntity.Get(entityId));
}
return(null);
}
public Component GetComponent(Entity e, ComponentType type)
{
int entityId = e.GetId();
Bag <Component> bag = componentsByType.Get(type.GetId());
if (bag != null && entityId < bag.GetCapacity())
{
return(bag.Get(entityId));
}
return(null);
}
public void RemoveComponent(Entity e, ComponentType type)
{
int entityId = e.GetId();
Bag <Component> components = componentsByType.Get(type.GetId());
if (RemovedComponentEvent != null)
{
RemovedComponentEvent(e, components.Get(entityId));
}
components.Set(entityId, null);
e.RemoveTypeBit(type.GetBit());
}
/**
* Set the group of the entity.
*
* @param group group to set the entity into.
* @param e entity to set into the group.
*/
public void Set(String group, Entity e)
{
Remove(e); // Entity can only belong to one group.
Bag <Entity> entities;
if (!entitiesByGroup.TryGetValue(group, out entities))
{
entities = new Bag <Entity>();
entitiesByGroup.Add(group, entities);
}
entities.Add(e);
groupByEntity.Set(e.GetId(), group);
}
public void Change(Entity e)
{
bool contains = (systemBit & e.GetSystemBits()) == systemBit;
bool interest = (typeFlags & e.GetTypeBits()) == typeFlags;
if (interest && !contains && typeFlags > 0)
{
actives.Add(e.GetId(), e);
e.AddSystemBit(systemBit);
Added(e);
}
else if (!interest && contains && typeFlags > 0)
{
Remove(e);
}
}
private void RemoveComponentsOfEntity(Entity e)
{
int entityId = e.GetId();
for (int a = 0, b = componentsByType.Size(); b > a; a++)
{
Bag <Component> components = componentsByType.Get(a);
if (components != null && entityId < components.Size())
{
if (RemovedComponentEvent != null)
{
RemovedComponentEvent(e, components.Get(entityId));
}
components.Set(entityId, null);
}
}
}
/**
* Removes the provided entity from the group it is assigned to, if any.
* @param e the entity.
*/
public void Remove(Entity e)
{
int entityId = e.GetId();
if (entityId < groupByEntity.GetCapacity())
{
String group = groupByEntity.Get(entityId);
if (group != null)
{
groupByEntity.Set(entityId, null);
Bag <Entity> entities;
if (entitiesByGroup.TryGetValue(group, out entities))
{
entities.Remove(e);
}
}
}
}
public void Remove(Entity e)
{
activeEntities.Set(e.GetId(), null);
e.SetTypeBits(0);
Refresh(e);
RemoveComponentsOfEntity(e);
count--;
totalRemoved++;
removedAndAvailable.Add(e);
if (RemovedEntityEvent != null)
{
RemovedEntityEvent(e);
}
}
public Bag <Component> GetComponents(Entity e)
{
entityComponents.Clear();
int entityId = e.GetId();
for (int a = 0, b = componentsByType.Size(); b > a; a++)
{
Bag <Component> components = componentsByType.Get(a);
if (components != null && entityId < components.Size())
{
Component component = components.Get(entityId);
if (component != null)
{
entityComponents.Add(component);
}
}
}
return(entityComponents);
}
private void Remove(Entity e)
{
actives.Remove(e.GetId());
e.RemoveSystemBit(systemBit);
Removed(e);
}
