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ludic.physics: queries fill a record the caller keeps, and allocate nothing

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phys_pose, phys_ray, phys_push and phys_walker_pose each made a new record per call, some several times a frame, and Ludic never gives one back. They now fill the caller's PhysPose / PhysHit / PhysPush / PhysWalk and return whether they found anything. phys_overlap returns a count; phys_overlap_id(i) reads each id back. The package's own uses (phys_resolve, phys_row, phys_walker_move) read the values buffer directly. Tests take small allocating helpers. physics 20, character 15, vehicles 8.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-27 23:18:26 +03:00
parent b6c4d703a2
commit f048ffb6ac
11 changed files with 140 additions and 87 deletions
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6
packages/ludic.physics/hull.ludic
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@ -12,9 +12,9 @@ export function phys_hull_add(physics_st: mut PhysicsState, x: float, y: float,
# a stroke of `forward` newtons along the bow and a turn of `turn` newton-metres about y, over the
# next step
export function phys_row(physics_st: mut PhysicsState, id: int, forward: float, turn: float) -> void {
let p = phys_pose(physics_st, id)
if p == null { return }
let yaw = phys_yaw_of(p)
if physics_st.ph_world == null or jph_body_read(physics_st.ph_world, id, physics_st.ph_vals) != 0 { return }
let v = physics_st.ph_vals
let yaw = Math.atan2(2.0 * (v[6] * v[4] + v[3] * v[5]), 1.0 - 2.0 * (v[4] * v[4] + v[3] * v[3]))
phys_force(physics_st, id, -Math.sin(yaw) * forward, 0.0, -Math.cos(yaw) * forward)
phys_torque(physics_st, id, 0.0, turn, 0.0)
}