Physics Bodies

A Physics Body is an object that can interact with the physical world. In some cases, it is affected by dynamic forces such as gravity or collides with other bodies.

Physics Bodies use their attached Colliders to define their physical shape.

Types of Physics Bodies

Rigid Bodies

Rigid bodies are moved around by forces such as collision and gravity. In general, rigid bodies are a good choice for objects that can be moved or pushed, like boxes, furniture, and obstacles. In Evergine, we use the RigidBody3D component.

Static Bodies

Static bodies are not affected by any physical force and, as a result, do not move. Rigid bodies can collide with static bodies. In general, static bodies can be used for objects that are immovable, like walls, floors, etc. In Evergine, we use the StaticBody3D component.

[ Static Bodies (static_bodies)

Character Controller

This is a special type of body used for player-controlled characters. It is usually controlled by user inputs. In Evergine, we use the CharacterController3D component.

Vehicles

It is possible to simulate physical vehicles by using a standard Rigid Body and applying several components to set the vehicle's behavior. In Evergine, add a PhysicVehicle3D to a RigidBody entity, and add several PhysicWheel3D for each desired wheel.

Physics Bodies and Colliders

As mentioned before, a physic body itself doesn't define its shape. The entity that owns the Physic Body needs at least one Collider component to interact with other bodies. For example, a rigid body without colliders will pass through a floor because it doesn't have any shape to cause collisions.