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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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19
packages/ludic.npc/tests/npc_test.ludic
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@ -10,6 +10,10 @@ program NpcTest {
ground: fn fk_ground
water: fn fk_water
allowed: fn fk_allowed
push: fn fk_push
pushed_x: fn fk_pushed_x
pushed_z: fn fk_pushed_z
clear: fn fk_clear
hour: fn fk_hour_now
day: fn fk_day_now
players: fn fk_players
@ -95,6 +99,21 @@ program NpcTest {
expect_near(p.fx, 30.0, 0.01)
}
test "a trunk in the way is walked round, and a line through it is not a clear walk" (npc_st: mut NpcState, npc_tests_fake_st: mut NpcTestsFakeState) {
let p = one(npc_st, npc_tests_fake_st, NPCK_HIKER)
npc_tests_fake_st.fk_trunk = true
expect(not npc_line_ok(0.0, 0.0, 20.0, 0.0))
expect(npc_line_ok(0.0, 5.0, 20.0, 5.0))
npc_go(npc_st, p, 20.0, 0.0, NPCA_SIT, 30.0)
var closest = 100.0
for k in 0 .. 600 {
npc_tick(npc_st, 0.05)
closest = Math.min(closest, npc_d(p.x, p.z, 10.0, 0.3))
}
expect(closest > 1.3)
expect_eq(p.act, NPCA_SIT)
}
test "nobody walks into the lake" (npc_st: mut NpcState, npc_tests_fake_st: mut NpcTestsFakeState) {
let p = one(npc_st, npc_tests_fake_st, NPCK_HIKER)
npc_go(npc_st, p, -80.0, 0.0, NPCA_SIT, 30.0)