Change GridMap navigation_layers to be per mesh_library item

Changes GridMap navigation_layers from a single bitmask for the entire GridMap to a bitmask for each item used in the mesh_library with a baked navmesh.

3 files changed, 5 insertions, 61 deletions

diff --git a/modules/gridmap/doc_classes/GridMap.xml b/modules/gridmap/doc_classes/GridMap.xml
index 686ba4dad6..e0fc4e2697 100644
--- a/modules/gridmap/doc_classes/GridMap.xml
+++ b/modules/gridmap/doc_classes/GridMap.xml
@@ -89,13 +89,6 @@
 				Returns an array of [Transform3D] and [Mesh] references corresponding to the non-empty cells in the grid. The transforms are specified in local space.
 			</description>
 		</method>
-		<method name="get_navigation_layer_value" qualifiers="const">
-			<return type="bool" />
-			<param index="0" name="layer_number" type="int" />
-			<description>
-				Returns whether or not the specified layer of the [member navigation_layers] bitmask is enabled, given a [code]layer_number[/code] between 1 and 32.
-			</description>
-		</method>
 		<method name="get_navigation_map" qualifiers="const">
 			<return type="RID" />
 			<description>
@@ -179,14 +172,6 @@
 				Based on [code]value[/code], enables or disables the specified layer in the [member collision_mask], given a [code]layer_number[/code] between 1 and 32.
 			</description>
 		</method>
-		<method name="set_navigation_layer_value">
-			<return type="void" />
-			<param index="0" name="layer_number" type="int" />
-			<param index="1" name="value" type="bool" />
-			<description>
-				Based on [code]value[/code], enables or disables the specified layer in the [member navigation_layers] bitmask, given a [code]layer_number[/code] between 1 and 32.
-			</description>
-		</method>
 		<method name="set_navigation_map">
 			<return type="void" />
 			<param index="0" name="navigation_map" type="RID" />
@@ -197,7 +182,7 @@
 	</methods>
 	<members>
 		<member name="bake_navigation" type="bool" setter="set_bake_navigation" getter="is_baking_navigation" default="false">
-			If [code]true[/code], this GridMap bakes a navigation region.
+			If [code]true[/code], this GridMap creates a navigation region for each cell that uses a [member mesh_library] item with a navigation mesh. The created navigation region will use the navigation layers bitmask assigned to the [MeshLibrary]'s item.
 		</member>
 		<member name="cell_center_x" type="bool" setter="set_center_x" getter="get_center_x" default="true">
 			If [code]true[/code], grid items are centered on the X axis.
@@ -232,9 +217,6 @@
 		<member name="mesh_library" type="MeshLibrary" setter="set_mesh_library" getter="get_mesh_library">
 			The assigned [MeshLibrary].
 		</member>
-		<member name="navigation_layers" type="int" setter="set_navigation_layers" getter="get_navigation_layers" default="1">
-			A bitmask determining all navigation layers the GridMap generated navigation regions belong to. These navigation layers can be checked upon when requesting a path with [method NavigationServer3D.map_get_path].
-		</member>
 		<member name="physics_material" type="PhysicsMaterial" setter="set_physics_material" getter="get_physics_material">
 			Overrides the default friction and bounce physics properties for the whole [GridMap].
 		</member>
diff --git a/modules/gridmap/grid_map.cpp b/modules/gridmap/grid_map.cpp
index e594153058..934b41da8d 100644
--- a/modules/gridmap/grid_map.cpp
+++ b/modules/gridmap/grid_map.cpp
@@ -256,33 +256,6 @@ RID GridMap::get_navigation_map() const {
 	return RID();
 }
 
-void GridMap::set_navigation_layers(uint32_t p_navigation_layers) {
-	navigation_layers = p_navigation_layers;
-	_recreate_octant_data();
-}
-
-uint32_t GridMap::get_navigation_layers() const {
-	return navigation_layers;
-}
-
-void GridMap::set_navigation_layer_value(int p_layer_number, bool p_value) {
-	ERR_FAIL_COND_MSG(p_layer_number < 1, "Navigation layer number must be between 1 and 32 inclusive.");
-	ERR_FAIL_COND_MSG(p_layer_number > 32, "Navigation layer number must be between 1 and 32 inclusive.");
-	uint32_t _navigation_layers = get_navigation_layers();
-	if (p_value) {
-		_navigation_layers |= 1 << (p_layer_number - 1);
-	} else {
-		_navigation_layers &= ~(1 << (p_layer_number - 1));
-	}
-	set_navigation_layers(_navigation_layers);
-}
-
-bool GridMap::get_navigation_layer_value(int p_layer_number) const {
-	ERR_FAIL_COND_V_MSG(p_layer_number < 1, false, "Navigation layer number must be between 1 and 32 inclusive.");
-	ERR_FAIL_COND_V_MSG(p_layer_number > 32, false, "Navigation layer number must be between 1 and 32 inclusive.");
-	return get_navigation_layers() & (1 << (p_layer_number - 1));
-}
-
 void GridMap::set_mesh_library(const Ref<MeshLibrary> &p_mesh_library) {
 	if (!mesh_library.is_null()) {
 		mesh_library->unregister_owner(this);
@@ -663,11 +636,12 @@ bool GridMap::_octant_update(const OctantKey &p_key) {
 		if (navigation_mesh.is_valid()) {
 			Octant::NavigationCell nm;
 			nm.xform = xform * mesh_library->get_item_navigation_mesh_transform(c.item);
+			nm.navigation_layers = mesh_library->get_item_navigation_layers(c.item);
 
 			if (bake_navigation) {
 				RID region = NavigationServer3D::get_singleton()->region_create();
 				NavigationServer3D::get_singleton()->region_set_owner_id(region, get_instance_id());
-				NavigationServer3D::get_singleton()->region_set_navigation_layers(region, navigation_layers);
+				NavigationServer3D::get_singleton()->region_set_navigation_layers(region, nm.navigation_layers);
 				NavigationServer3D::get_singleton()->region_set_navigation_mesh(region, navigation_mesh);
 				NavigationServer3D::get_singleton()->region_set_transform(region, get_global_transform() * nm.xform);
 				if (is_inside_tree()) {
@@ -792,7 +766,7 @@ void GridMap::_octant_enter_world(const OctantKey &p_key) {
 				if (navigation_mesh.is_valid()) {
 					RID region = NavigationServer3D::get_singleton()->region_create();
 					NavigationServer3D::get_singleton()->region_set_owner_id(region, get_instance_id());
-					NavigationServer3D::get_singleton()->region_set_navigation_layers(region, navigation_layers);
+					NavigationServer3D::get_singleton()->region_set_navigation_layers(region, F.value.navigation_layers);
 					NavigationServer3D::get_singleton()->region_set_navigation_mesh(region, navigation_mesh);
 					NavigationServer3D::get_singleton()->region_set_transform(region, get_global_transform() * F.value.xform);
 					if (map_override.is_valid()) {
@@ -1070,12 +1044,6 @@ void GridMap::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_navigation_map", "navigation_map"), &GridMap::set_navigation_map);
 	ClassDB::bind_method(D_METHOD("get_navigation_map"), &GridMap::get_navigation_map);
 
-	ClassDB::bind_method(D_METHOD("set_navigation_layers", "layers"), &GridMap::set_navigation_layers);
-	ClassDB::bind_method(D_METHOD("get_navigation_layers"), &GridMap::get_navigation_layers);
-
-	ClassDB::bind_method(D_METHOD("set_navigation_layer_value", "layer_number", "value"), &GridMap::set_navigation_layer_value);
-	ClassDB::bind_method(D_METHOD("get_navigation_layer_value", "layer_number"), &GridMap::get_navigation_layer_value);
-
 	ClassDB::bind_method(D_METHOD("set_mesh_library", "mesh_library"), &GridMap::set_mesh_library);
 	ClassDB::bind_method(D_METHOD("get_mesh_library"), &GridMap::get_mesh_library);
 
@@ -1135,7 +1103,6 @@ void GridMap::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "collision_priority"), "set_collision_priority", "get_collision_priority");
 	ADD_GROUP("Navigation", "");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "bake_navigation"), "set_bake_navigation", "is_baking_navigation");
-	ADD_PROPERTY(PropertyInfo(Variant::INT, "navigation_layers", PROPERTY_HINT_LAYERS_3D_NAVIGATION), "set_navigation_layers", "get_navigation_layers");
 
 	BIND_CONSTANT(INVALID_CELL_ITEM);
 
diff --git a/modules/gridmap/grid_map.h b/modules/gridmap/grid_map.h
index 59d2936f2c..2a9f34bdda 100644
--- a/modules/gridmap/grid_map.h
+++ b/modules/gridmap/grid_map.h
@@ -99,6 +99,7 @@ class GridMap : public Node3D {
 			RID region;
 			Transform3D xform;
 			RID navigation_mesh_debug_instance;
+			uint32_t navigation_layers = 1;
 		};
 
 		struct MultimeshInstance {
@@ -255,12 +256,6 @@ public:
 	void set_navigation_map(RID p_navigation_map);
 	RID get_navigation_map() const;
 
-	void set_navigation_layers(uint32_t p_navigation_layers);
-	uint32_t get_navigation_layers() const;
-
-	void set_navigation_layer_value(int p_layer_number, bool p_value);
-	bool get_navigation_layer_value(int p_layer_number) const;
-
 	void set_mesh_library(const Ref<MeshLibrary> &p_mesh_library);
 	Ref<MeshLibrary> get_mesh_library() const;