v0.8.0

0.8.0 (2026-11-05)

This release moves the engine to Maul2D 1.3.1. Body poses step to the same bits as before, but the 2D physics digest changes for every world, and a few edge cases of 2D physics act differently. No wire, save, checkpoint or cooked format changes.

Changed

• Breaking: The engine is built on Maul2D 1.3.1, from 0.6.0, vendored from its release archive with its SHA-256 checked. What a game sees change (#225):
  • The 2D physics digest changes for every world, since Maul2D's world hash now covers each shape's broadphase box and each body's sleep threshold. Body poses are unchanged: a scene of 20 bouncing balls ends on the same bits after 120 ticks.
  • Rays, sweeps, overlaps and character moves between steps see a shape that moved more than 0.1 m in the last step where it is now, instead of missing it or finding it where it was.
  • A body with a fixed rotation no longer turns when a game gives it an angular velocity or an angular impulse.
  • A bullet body passes no wall when more than 64 shapes crowd its path, and a character meeting more than 16 surfaces keeps those of the lowest shape slots.
  • The 2D step fails at a tick shorter than 1 microsecond or longer than 10 seconds, before it changes anything, instead of leaving the world standing still. A dedicated server with 2D physics takes a world.tick_rate of 1 to 1,000,000.
  • Physics2DStatistics::targets counts only kinematic targets carried out. A target too far to reach in one tick within Maul2D's 100 km/s speed limit is cleared, as before, but no longer counted.