Implement NavigationMesh bake area

Adds two new properties to NavigationMesh resources to restrict the navmesh baking to an area enclosed by an AABB with volume.

1 files changed, 15 insertions, 0 deletions

diff --git a/modules/navigation/navigation_mesh_generator.cpp b/modules/navigation/navigation_mesh_generator.cpp
index e430f5fd59..c620776dc6 100644
--- a/modules/navigation/navigation_mesh_generator.cpp
+++ b/modules/navigation/navigation_mesh_generator.cpp
@@ -482,6 +482,21 @@ void NavigationMeshGenerator::_build_recast_navigation_mesh(
 	cfg.bmax[1] = bmax[1];
 	cfg.bmax[2] = bmax[2];
 
+	AABB baking_aabb = p_nav_mesh->get_filter_baking_aabb();
+
+	bool aabb_has_no_volume = baking_aabb.has_no_volume();
+
+	if (!aabb_has_no_volume) {
+		Vector3 baking_aabb_offset = p_nav_mesh->get_filter_baking_aabb_offset();
+
+		cfg.bmin[0] = baking_aabb.position[0] + baking_aabb_offset.x;
+		cfg.bmin[1] = baking_aabb.position[1] + baking_aabb_offset.y;
+		cfg.bmin[2] = baking_aabb.position[2] + baking_aabb_offset.z;
+		cfg.bmax[0] = cfg.bmin[0] + baking_aabb.size[0];
+		cfg.bmax[1] = cfg.bmin[1] + baking_aabb.size[1];
+		cfg.bmax[2] = cfg.bmin[2] + baking_aabb.size[2];
+	}
+
 #ifdef TOOLS_ENABLED
 	if (ep) {
 		ep->step(TTR("Calculating grid size..."), 2);