Implement Influencer and Collision detection event

[mcgivrer]

Influencer

Definition

Add new feature in the PhysicEngine to define area on the play area where physic and environment can change the Entity behavior.

In this diagram, we can identify the following requirement:

• E1: this entity is under the magnet yellow influence only,
• E2: the second entity is under both influence water and magnet,
• E3: the 3rd entity is not under influence
• E4: and the fourth entity is only under the water influencer (blue one).

Proposed design

implementation proposal

class Influencer extends Entity {
  
  //...
}

Impacts

the following impacts has been identified:

Component/Service	Description
Influencer	create the component Influencer inheriting from the Entity class.
PhysicEngine	add Influencer processing, excluding Influencer from Entity processing
Renderer	implement a dedicated DrawPlugin<Influencer> only used for display debug purposes