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ludic.nav (18.1): a DetourCrowd per kind of walker

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The shim builds DetourCrowd from the same pinned Recast & Detour tag. nav_crowd_start puts a crowd on a kind's mesh, with the mesh's tastes as its filters. Walkers are added (snapped to the mesh), sent and sped through verbs, stepped together, and read back into nav_agent_*. nav_crowd_us times the stepping with the OS clock. Dropping a mesh drops its crowd first. On the test meadow, twenty walkers crossing head-on never come closer than their two radii (0.7003 m), all arrive, and a step costs about 12 us. nav 15/15 on the Mac and the PC; the DLL still imports KERNEL32 alone.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-28 00:24:30 +03:00
parent c2902a2246
commit 521efe67db
12 changed files with 267 additions and 10 deletions
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packages/ludic.nav/native/shim/nav_shim.cpp
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@ -6,6 +6,7 @@
#include <DetourNavMeshBuilder.h>
#include <DetourNavMeshQuery.h>
#include <DetourCommon.h>
#include <DetourCrowd.h>
#include <cstring>
#include <cstdlib>
#include <cmath>
@ -77,3 +78,4 @@ const dtQueryFilter *nav_filter(Nav *n, int f) { return &n->filters[f >= 0 && f
#include "nav_build.inl"
#include "nav_tiles.inl"
#include "nav_query.inl"
#include "nav_crowd.inl"