MAreaEditor：Editor blueprint for editing polygon areas

MAreaSpawnPoint：Creates actors that belongs to this area

• AreaID: ID of the owning area
• EnemyClass: Actor type created
• QuantityGroup: Number of actors created per group
• ConcurrentQuantity: The maximum number of concurrent creations on the field
• SpawnInterval：Create interval

MAreaComponent ：The component of the marked area detection actor

• EnterAreaEvent：Triggered when the parent object enters the area
• ExitAreaEvent：Triggered when the parent object leaves the area

MAreaGearComponent ：Flag gear to monitor area events

• ComponentEnterEvent：Triggered when AreaComponent enters the area
• ComponentExitEvent：Triggered when AreaComponent leaves the area
• ClearGroupEvent：Triggered upon the destruction of all group actors created by AreaSpawnPoint within the area
• ClearAreaEvent：Triggered upon the destruction of all actors spawned by AreaSpawnPoint within the area