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Implement more complex area modifications (#260)

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This implements rcAreaModification which allows combining of area types when they overlap
and otherwise usage of the area type as a bit mask.
This commit is contained in:
Domenico Albani
2017-03-12 12:18:29 +01:00
committed by Jakob Botsch Nielsen
parent ef3ea40f7a
commit 433986a5a4
15 changed files with 200 additions and 134 deletions
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RecastDemo/Source/Sample_TempObstacles.cpp
+4 -19
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@@ -195,23 +195,7 @@ struct MeshProcess : public dtTileCacheMeshProcess
// Update poly flags from areas.
for (int i = 0; i < params->polyCount; ++i)
{
if (polyAreas[i] == DT_TILECACHE_WALKABLE_AREA)
polyAreas[i] = SAMPLE_POLYAREA_GROUND;
if (polyAreas[i] == SAMPLE_POLYAREA_GROUND ||
polyAreas[i] == SAMPLE_POLYAREA_GRASS ||
polyAreas[i] == SAMPLE_POLYAREA_ROAD)
{
polyFlags[i] = SAMPLE_POLYFLAGS_WALK;
}
else if (polyAreas[i] == SAMPLE_POLYAREA_WATER)
{
polyFlags[i] = SAMPLE_POLYFLAGS_SWIM;
}
else if (polyAreas[i] == SAMPLE_POLYAREA_DOOR)
{
polyFlags[i] = SAMPLE_POLYFLAGS_WALK | SAMPLE_POLYFLAGS_DOOR;
}
polyFlags[i] = sampleAreaToFlags(polyAreas[i]);
}
// Pass in off-mesh connections.
@@ -351,7 +335,8 @@ int Sample_TempObstacles::rasterizeTileLayers(
memset(rc.triareas, 0, ntris*sizeof(unsigned char));
rcMarkWalkableTriangles(m_ctx, tcfg.walkableSlopeAngle,
verts, nverts, tris, ntris, rc.triareas);
verts, nverts, tris, ntris, rc.triareas,
SAMPLE_AREAMOD_GROUND);
if (!rcRasterizeTriangles(m_ctx, verts, nverts, tris, rc.triareas, ntris, *rc.solid, tcfg.walkableClimb))
return 0;
@@ -393,7 +378,7 @@ int Sample_TempObstacles::rasterizeTileLayers(
{
rcMarkConvexPolyArea(m_ctx, vols[i].verts, vols[i].nverts,
vols[i].hmin, vols[i].hmax,
(unsigned char)vols[i].area, *rc.chf);
vols[i].areaMod, *rc.chf);
}
rc.lset = rcAllocHeightfieldLayerSet();