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feat(ludic.physics): phys_own - a body owns a shape made for it alone, and phys_remove frees it with the body

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A chunk's trunks and boulders put in and taken out made a new shape each time and freed none. The
table is by the body's index, made once at the world's size. tests/reuse_test: 1000 owned bodies put
and removed hold no more shapes and 32 bytes of heap.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-28 13:52:07 +03:00
parent 404ee2ee3b
commit 5cd53d4024
6 changed files with 54 additions and 1 deletions
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packages/ludic.physics/state.ludic
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@ -38,6 +38,7 @@ export state PhysicsState {
ph_world: pointer = null
ph_shapes: []pointer = new []pointer # a shape id is its place here; null once freed
ph_spare: []int = new []int # the freed places, handed out again (shape_ids.ludic)
ph_own: []int = new []int # by a body's index: the shape it owns, freed with it (owned.ludic)
ph_step: float = 0.016666668 # seconds a step
ph_sub: int = 1 # collision steps in each
ph_max_steps: int = 4 # a slow frame catches up this far and no further