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ludic.nav, ludic.wildlife (18.4): a walker's separation, and a species' spacing

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nav_crowd_add takes how hard a walker keeps its distance, and WildSpecies.spacing (default 2) is a species' room from others walking by, which the valley hands the crowd. Both libraries are rebuilt; nav 15/15 on the Mac and the PC, DLL KERNEL32 only. wildlife 26/26.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-28 00:45:14 +03:00
parent 95f2087148
commit d83eabfdf1
8 changed files with 17 additions and 14 deletions
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7
packages/ludic.nav/native/shim/nav_crowd.inl
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@ -24,8 +24,9 @@ NAV_SHIM void nav_crowd_free(void *p) {
delete c;
}
// a walker at (x, y, z): its index, or -1 when the crowd is full or the point is off the mesh
NAV_SHIM int nav_crowd_add(void *p, float x, float y, float z, float radius, float height, float speed, int filter) {
// a walker at (x, y, z): its index, or -1 when the crowd is full or the point is off the mesh;
// separation is how hard it keeps its distance (a herd animal more than a loner)
NAV_SHIM int nav_crowd_add(void *p, float x, float y, float z, float radius, float height, float speed, int filter, float separation) {
Crowd *c = static_cast<Crowd *>(p);
dtCrowdAgentParams ap;
memset(&ap, 0, sizeof(ap));
@ -35,7 +36,7 @@ NAV_SHIM int nav_crowd_add(void *p, float x, float y, float z, float radius, flo
ap.maxAcceleration = speed * 4.0f;
ap.collisionQueryRange = radius * 12.0f;
ap.pathOptimizationRange = radius * 30.0f;
ap.separationWeight = 2.0f;
ap.separationWeight = separation;
ap.updateFlags = DT_CROWD_ANTICIPATE_TURNS | DT_CROWD_OBSTACLE_AVOIDANCE | DT_CROWD_SEPARATION | DT_CROWD_OPTIMIZE_TOPO | DT_CROWD_OPTIMIZE_VIS;
ap.obstacleAvoidanceType = 3;
ap.queryFilterType = (unsigned char)(filter >= 0 && filter < NAV_FILTERS ? filter : 0);