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feat(senses): walkers slide round still things, and lines of sight are the world's to answer

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- ludic.wildlife: WildlifeWorld.push / pushed_x / pushed_z (defaults change nothing); a ground
  walker's step is slid clear of a still thing with a body from its species' size and scale, and
  a step that gets nowhere turns away as the water does. Birds are not pushed; no dice added.
- ludic.npc: NpcWorld.push / pushed_x / pushed_z (a person 0.35 m round) in npc_walk, and
  NpcWorld.clear (default true), which npc_line_ok asks at 1 m so a detour does not cut a trunk.
- ludic.aim: AimView.clear replaces AimView.ground and the ground march; the pick asks the line
  a body's width short of where the ray enters the thing (aim_clear_at(t, back)), so a solid
  thing does not hide itself. probe.ludic (the ground-agreement probe) and AimView.dry are gone.
- ludic.photo: PhotoLens.clear replaces PhotoLens.ground, PhotoLens.trunk and the march.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-27 00:59:39 +03:00
parent d2cd775309
commit 56e4b6d688
24 changed files with 230 additions and 152 deletions
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23
packages/ludic.npc/tests/fake/index.ludic
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@ -11,6 +11,9 @@ export state NpcTestsFakeState {
fk_on: []bool = null
fk_born: int = 0
fk_gone: int = 0
fk_trunk: bool = false # a trunk 1 m round at (10, 0.3)
fk_out_x: float = 0.0
fk_out_z: float = 0.0
}
function fk_setup(npc_st: mut NpcState, npc_tests_fake_st: mut NpcTestsFakeState) -> void {
@ -23,6 +26,7 @@ function fk_setup(npc_st: mut NpcState, npc_tests_fake_st: mut NpcTestsFakeState
npc_tests_fake_st.fk_on = [true, false]
npc_tests_fake_st.fk_born = 0
npc_tests_fake_st.fk_gone = 0
npc_tests_fake_st.fk_trunk = false
npc_clear(npc_st)
npc_reset(npc_st)
npc_seed(npc_st, 7)
@ -61,3 +65,22 @@ function fk_count(npc_st: mut NpcState, what: int) -> int {
for i in 0 .. len(fs) { if fs[i].what == what { n += 1 } }
return n
}
# the trunk, when it stands: a body inside it is pushed straight out from its axis, and a line
# passing within its radius is not clear
function fk_push(npc_tests_fake_st: mut NpcTestsFakeState, x: float, z: float, r: float, y0: float, y1: float) -> bool {
let d = npc_d(x, z, 10.0, 0.3)
if not npc_tests_fake_st.fk_trunk or d > 1.0 + r or d < 0.0001 { return false }
npc_tests_fake_st.fk_out_x = 10.0 + (x - 10.0) / d * (1.0 + r)
npc_tests_fake_st.fk_out_z = 0.3 + (z - 0.3) / d * (1.0 + r)
return true
}
function fk_pushed_x(npc_tests_fake_st: NpcTestsFakeState) -> float { return npc_tests_fake_st.fk_out_x }
function fk_pushed_z(npc_tests_fake_st: NpcTestsFakeState) -> float { return npc_tests_fake_st.fk_out_z }
function fk_clear(npc_tests_fake_st: NpcTestsFakeState, ax: float, ay: float, az: float, bx: float, by: float, bz: float) -> bool {
if not npc_tests_fake_st.fk_trunk { return true }
let lx = bx - ax
let lz = bz - az
let t = Math.clamp(((10.0 - ax) * lx + (0.3 - az) * lz) / Math.max(lx * lx + lz * lz, 0.0001), 0.0, 1.0)
return npc_d(ax + lx * t, az + lz * t, 10.0, 0.3) > 1.0
}