public void Enter(int entity_id, float pos_x, float pos_y, float eye_size)
{
if (this.entity_map.ContainsKey(entity_id))
{
return;
}
if (this.max_eye_size < eye_size)
{
this.max_eye_size = eye_size;
}
AOIEntity entity = new AOIEntity(entity_id, pos_x, pos_y, eye_size);
AOIEntity next_entity = this.head_entity;
bool is_insert = false;
while (next_entity != null)
{
//找到合适位置
if (entity.PosX < next_entity.PosX && !is_insert)
{
entity.PerEntity = next_entity.PerEntity;
next_entity.PerEntity.NextEntity = entity;
entity.NextEntity = next_entity;
next_entity.PerEntity = entity;
is_insert = true;
}
//可能触发的视野事件
if (Math.Abs(entity.PosX - next_entity.PosX) <= this.max_eye_size)
{
if (entity.CanSee(next_entity))
{
this.MakeEvent(entity.EntityId, next_entity.EntityId, AOIEventType.Enter);
}
if (next_entity.CanSee(entity))
{
this.MakeEvent(next_entity.EntityId, entity.EntityId, AOIEventType.Enter);
}
}
//遍历到最大视野所及的范围
if (next_entity.PosX > entity.PosX + this.max_eye_size)
{
break;
}
next_entity = next_entity.NextEntity;
}
this.entity_map.Add(entity_id, entity);
}
private void CheckMoveEvent(AOIEntity entity, AOIEntity target)
{
//之前看不见现在看得见
if (!entity.CanSee(target) && entity.NewCanSee(target))
{
this.MakeEvent(entity.EntityId, target.EntityId, AOIEventType.MoveEnter);
}
if (!target.CanSee(entity) && target.NewCanSee(entity))
{
this.MakeEvent(target.EntityId, entity.EntityId, AOIEventType.MoveEnter);
}
//之前看得见现在看不见
if (entity.CanSee(target) && !entity.NewCanSee(target))
{
this.MakeEvent(entity.EntityId, target.EntityId, AOIEventType.MoveLeave);
}
if (target.CanSee(entity) && !target.NewCanSee(entity))
{
this.MakeEvent(target.EntityId, entity.EntityId, AOIEventType.MoveLeave);
}
}
public List <int> GetRangeEntityId(int entity_id)
{
List <int> entity_id_list = new List <int>();
if (this.entity_map.ContainsKey(entity_id))
{
AOIEntity entity = this.entity_map[entity_id];
AOIEntity per_entity = entity.PerEntity;
AOIEntity next_entity = entity.NextEntity;
while (per_entity != null)
{
if (Math.Abs(entity.PosX - per_entity.PosX) <= this.max_eye_size)
{
if (per_entity.CanSee(entity))
{
entity_id_list.Add(per_entity.EntityId);
}
}
else
{
break;
}
per_entity = per_entity.PerEntity;
}
while (next_entity != null)
{
if (Math.Abs(entity.PosX - next_entity.PosX) <= this.max_eye_size)
{
if (next_entity.CanSee(entity))
{
entity_id_list.Add(next_entity.EntityId);
}
}
else
{
break;
}
next_entity = next_entity.NextEntity;
}
}
return(entity_id_list);
}
public void Leave(int entity_id)
{
if (!this.entity_map.ContainsKey(entity_id))
{
return;
}
AOIEntity entity = this.entity_map[entity_id];
AOIEntity per_entity = entity.PerEntity;
AOIEntity next_entity = entity.NextEntity;
while (per_entity != null)
{
//可能触发的视野事件
if (Math.Abs(entity.PosX - per_entity.PosX) <= this.max_eye_size)
{
if (entity.CanSee(per_entity))
{
this.MakeEvent(entity.EntityId, per_entity.EntityId, AOIEventType.Leave);
}
if (per_entity.CanSee(entity))
{
this.MakeEvent(per_entity.EntityId, entity.EntityId, AOIEventType.Leave);
}
}
else
{
break;
}
per_entity = per_entity.PerEntity;
}
while (next_entity != null)
{
//可能触发的视野事件
if (Math.Abs(entity.PosX - next_entity.PosX) <= this.max_eye_size)
{
if (entity.CanSee(next_entity))
{
this.MakeEvent(entity.EntityId, next_entity.EntityId, AOIEventType.Leave);
}
if (next_entity.CanSee(entity))
{
this.MakeEvent(next_entity.EntityId, entity.EntityId, AOIEventType.Leave);
}
}
else
{
break;
}
next_entity = next_entity.NextEntity;
}
entity.PerEntity.NextEntity = entity.NextEntity;
entity.NextEntity.PerEntity = entity.PerEntity;
this.entity_map.Remove(entity.EntityId);
}