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Built-in Bundle

The arepy.bundle package contains reusable components and systems intended to cover common game patterns.

Available components

The current public bundle exports:

  • RigidBody2D
  • Sprite
  • Transform
  • Camera2D
  • Camera3D
  • Model3D
  • Material3D
  • Light3D
  • Transform3D
  • Mesh3D

Frequently used 2D components

Transform

Transform stores:

  • position: Vec2
  • scale: Vec2
  • origin: Vec2
  • rotation: float

Default vectors are created per instance, so different entities do not accidentally share mutable defaults.

RigidBody2D

RigidBody2D stores:

  • velocity: Vec2
  • acceleration
  • deceleration
  • max_velocity

Sprite

Sprite stores:

  • asset_id
  • src_rect
  • z_index
  • flipped

Built-in systems

The current bundle systems package exposes two reusable systems:

  • movement_system
  • render_system

Both use query-driven iteration over components rather than entity lookups inside the hot loop.

Where to look next

  • examples/bunnymark.py shows a large number of 2D moving sprites
  • examples/cubemark_3d.py shows the 3D side of the engine
  • examples/bunny_roguelite_3d.py shows a fixed 45-degree camera with Bunnymark sprites used as real 3D billboards
  • the ImGui guide explains the workflow step by step
  • examples/imgui_minimal.py shows the smallest optional ImGui example using RENDER_UI