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feat(physics): phys_resolve (two passes, the place kept) - a contact more up than across is ground under the feet, not a wall

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-26 23:47:29 +03:00
parent 1c814464c5
commit 28c54e4b39
6 changed files with 58 additions and 5 deletions
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22
packages/ludic.physics/queries.ludic
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@ -72,3 +72,25 @@ export function phys_push(physics_st: mut PhysicsState, x: float, z: float, r: f
p.z = physics_st.ph_vals[1]
return p
}
# a body r wide from y0 to y1 at (x, z) moved clear of what it stands in, two passes over (a push out
# of one thing can put it into another); true when it moved, the place in phys_resolved_x / _z -
# what CharacterGround.push and pushed_x / _z ask
export function phys_resolve(physics_st: mut PhysicsState, x: float, z: float, r: float, y0: float, y1: float, mask: int) -> bool {
var px = x
var pz = z
var moved = false
for pass in 0 .. 2 {
let p = phys_push(physics_st, px, pz, r, y0, y1, mask)
if p.n > 0 {
px += p.x
pz += p.z
moved = true
}
}
physics_st.ph_rx = px
physics_st.ph_rz = pz
return moved
}
export function phys_resolved_x(physics_st: PhysicsState) -> float { return physics_st.ph_rx }
export function phys_resolved_z(physics_st: PhysicsState) -> float { return physics_st.ph_rz }