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feat(physics): phase 16 - ludic.physics over Jolt Physics v5.6.0

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Our own shim (native/shim/jph_shim.cpp) over Jolt built from the pinned tag with cross-platform
determinism and no fp contraction: shapes as handles (box, sphere, capsule, cylinder, dome,
offset, heightfield, mesh), still/kinematic/dynamic bodies by id with real removal, rays,
top_at and push (what CharacterGround asks), overlaps, buoyancy against the PhysWater port,
contacts recorded in C and drained as PHYS_HIT / PHYS_SPLASH facts. Fixed 1/60 steps, at most four
a frame. Nine tests against the real library, including a pile run twice to the bit.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Orkun ÇAKILKAYA 2026-09-26 23:41:37 +03:00
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packages/README.md
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@ -29,6 +29,7 @@ section. The rules are in [ludic.base](ludic.base/README.md).
| [ludic.minimap](ludic.minimap/README.md) | a map's logic: the explored fog over a grid and its land share, the player's marks, and the view (world to map and back, zoom, pan, the camp, you, focus) |
| [ludic.needs](ludic.needs/README.md) | a body's warmth, food, water and energy, and the countdown to a collapse |
| [ludic.npc](ludic.npc/README.md) | the other people in a place: a routine by the hour, walking round what is in the way, facing a player who comes near, lines as data, a guest's copy |
| [ludic.physics](ludic.physics/README.md) | rigid bodies, removable still shapes, queries and buoyancy over Jolt Physics (a native library, phase 16) |
| [ludic.photo](ludic.photo/README.md) | a camera's photographs: what is in the frame, a grade on size, framing, light and the moment, the roll, its worth, the best of each subject |
| [ludic.save](ludic.save/README.md) | versioned save files: a migration chain the game declares, torn writes told apart, a backup, a newer file refused and read-only |
| [ludic.settings](ludic.settings/README.md) | a game's settings as data: one store, a fact per change, ranges, a safe set |