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Add tilemap modifier support for Physics Colliders #244

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Add tilemap modifier support for Physics Colliders #244

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17 changes: 15 additions & 2 deletions NavMeshComponents/Scripts/NavMeshBuilder2d.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -190,6 +190,11 @@ public static void CollectSources(List<NavMeshBuildSource> sources, NavMeshBuild
{
if (builder.CollectGeometry == NavMeshCollectGeometry.PhysicsColliders)
{
var tilemap = modifier.GetComponent<Tilemap>();
if (tilemap != null)
{
CollectTileSources(sources, tilemap, area, builder, true);
}
var collider = modifier.GetComponent<Collider2D>();
if (collider != null)
{
Expand Down Expand Up @@ -286,7 +291,7 @@ public static void CollectSources(List<NavMeshBuildSource> sources, Collider2D c
builder.lookupCallback?.Invoke(collider.gameObject, src);
}

public static void CollectTileSources(List<NavMeshBuildSource> sources, Tilemap tilemap, int area, NavMeshBuilder2dState builder)
public static void CollectTileSources(List<NavMeshBuildSource> sources, Tilemap tilemap, int area, NavMeshBuilder2dState builder, bool onlyTileModifier = false)
{
var bound = tilemap.cellBounds;

Expand Down Expand Up @@ -323,11 +328,19 @@ public static void CollectTileSources(List<NavMeshBuildSource> sources, Tilemap
continue;
}

bool hadTileModifier = false;
CollectTile(tilemap, builder, vec3int, size, sharedMesh, rot, ref src);
if (modifierTilemap && modifierTilemap.TryGetTileModifier(vec3int, tilemap, out NavMeshModifierTilemap.TileModifier tileModifier))
{
src.area = tileModifier.overrideArea ? tileModifier.area : area;
}
hadTileModifier = tileModifier.overrideArea;
}

if (onlyTileModifier && !hadTileModifier)
{
continue;
}

sources.Add(src);

builder.lookupCallback?.Invoke(tilemap.GetInstantiatedObject(vec3int), src);
Expand Down