Physics Bullet

[brenocq]

Feature description The Bullet is already integrated into atta, but we need to provide an UI to configure Bullet. Testing if it works properly with the newer atta versions is also necessary.

Tasks

• [x] Validate if Bullet works
• [x] Save physics configuration
• [x] Better physics drawer
• [x] Improve simulation stepping
• [x] Bullet configuration UI
• [x] Be able to move rigid bodies after start
• [x] Queries
  • [x] Collision check
  • [x] Raycast
• [ ] Colliders
  • [x] Box collider
  • [x] Sphere collider
  • [x] Cylinder collider
  • [ ] Capsule collider
  • [ ] Convex Hull collider
  • [ ] Mesh collider
  • [ ] Heightfield collider
  • [ ] Compound collider
• [ ] Joints
  • [x] Prismatic joint
  • [x] Prismatic motor
  • [x] Revolute joint
  • [ ] Revolute motor
  • [ ] Rigid joint
• [x] Examples
  • [x] Collider example
  • [x] Collision check example
  • [x] Ray cast example

[brenocq]

Better step control, physics configuration, and collider/aabb rendering

[brenocq]

It was necessary to perform coordinate system handedness conversion, but now the contacts are being displayed properly