1 files changed, 51 insertions, 29 deletions
diff --git a/scene/resources/navigation_mesh.cpp b/scene/resources/navigation_mesh.cpp
index ddc50c0490..00cee9269b 100644
--- a/scene/resources/navigation_mesh.cpp
+++ b/scene/resources/navigation_mesh.cpp
@@ -64,22 +64,22 @@ void NavigationMesh::create_from_mesh(const Ref<Mesh> &p_mesh) {
 	}
 }
 
-void NavigationMesh::set_sample_partition_type(int p_value) {
-	ERR_FAIL_COND(p_value >= SAMPLE_PARTITION_MAX);
-	partition_type = static_cast<SamplePartitionType>(p_value);
+void NavigationMesh::set_sample_partition_type(SamplePartitionType p_value) {
+	ERR_FAIL_INDEX(p_value, SAMPLE_PARTITION_MAX);
+	partition_type = p_value;
 }
 
-int NavigationMesh::get_sample_partition_type() const {
-	return static_cast<int>(partition_type);
+NavigationMesh::SamplePartitionType NavigationMesh::get_sample_partition_type() const {
+	return partition_type;
 }
 
-void NavigationMesh::set_parsed_geometry_type(int p_value) {
-	ERR_FAIL_COND(p_value >= PARSED_GEOMETRY_MAX);
-	parsed_geometry_type = static_cast<ParsedGeometryType>(p_value);
+void NavigationMesh::set_parsed_geometry_type(ParsedGeometryType p_value) {
+	ERR_FAIL_INDEX(p_value, PARSED_GEOMETRY_MAX);
+	parsed_geometry_type = p_value;
 	notify_property_list_changed();
 }
 
-int NavigationMesh::get_parsed_geometry_type() const {
+NavigationMesh::ParsedGeometryType NavigationMesh::get_parsed_geometry_type() const {
 	return parsed_geometry_type;
 }
 
@@ -91,29 +91,31 @@ uint32_t NavigationMesh::get_collision_mask() const {
 	return collision_mask;
 }
 
-void NavigationMesh::set_collision_mask_bit(int p_bit, bool p_value) {
-	ERR_FAIL_INDEX_MSG(p_bit, 32, "Collision mask bit must be between 0 and 31 inclusive.");
+void NavigationMesh::set_collision_mask_value(int p_layer_number, bool p_value) {
+	ERR_FAIL_COND_MSG(p_layer_number < 1, "Collision layer number must be between 1 and 32 inclusive.");
+	ERR_FAIL_COND_MSG(p_layer_number > 32, "Collision layer number must be between 1 and 32 inclusive.");
 	uint32_t mask = get_collision_mask();
 	if (p_value) {
-		mask |= 1 << p_bit;
+		mask |= 1 << (p_layer_number - 1);
 	} else {
-		mask &= ~(1 << p_bit);
+		mask &= ~(1 << (p_layer_number - 1));
 	}
 	set_collision_mask(mask);
 }
 
-bool NavigationMesh::get_collision_mask_bit(int p_bit) const {
-	ERR_FAIL_INDEX_V_MSG(p_bit, 32, false, "Collision mask bit must be between 0 and 31 inclusive.");
-	return get_collision_mask() & (1 << p_bit);
+bool NavigationMesh::get_collision_mask_value(int p_layer_number) const {
+	ERR_FAIL_COND_V_MSG(p_layer_number < 1, false, "Collision layer number must be between 1 and 32 inclusive.");
+	ERR_FAIL_COND_V_MSG(p_layer_number > 32, false, "Collision layer number must be between 1 and 32 inclusive.");
+	return get_collision_mask() & (1 << (p_layer_number - 1));
 }
 
-void NavigationMesh::set_source_geometry_mode(int p_geometry_mode) {
+void NavigationMesh::set_source_geometry_mode(SourceGeometryMode p_geometry_mode) {
 	ERR_FAIL_INDEX(p_geometry_mode, SOURCE_GEOMETRY_MAX);
-	source_geometry_mode = static_cast<SourceGeometryMode>(p_geometry_mode);
+	source_geometry_mode = p_geometry_mode;
 	notify_property_list_changed();
 }
 
-int NavigationMesh::get_source_geometry_mode() const {
+NavigationMesh::SourceGeometryMode NavigationMesh::get_source_geometry_mode() const {
 	return source_geometry_mode;
 }
 
@@ -126,6 +128,7 @@ StringName NavigationMesh::get_source_group_name() const {
 }
 
 void NavigationMesh::set_cell_size(float p_value) {
+	ERR_FAIL_COND(p_value <= 0);
 	cell_size = p_value;
 }
 
@@ -134,6 +137,7 @@ float NavigationMesh::get_cell_size() const {
 }
 
 void NavigationMesh::set_cell_height(float p_value) {
+	ERR_FAIL_COND(p_value <= 0);
 	cell_height = p_value;
 }
 
@@ -142,6 +146,7 @@ float NavigationMesh::get_cell_height() const {
 }
 
 void NavigationMesh::set_agent_height(float p_value) {
+	ERR_FAIL_COND(p_value < 0);
 	agent_height = p_value;
 }
 
@@ -150,6 +155,7 @@ float NavigationMesh::get_agent_height() const {
 }
 
 void NavigationMesh::set_agent_radius(float p_value) {
+	ERR_FAIL_COND(p_value < 0);
 	agent_radius = p_value;
 }
 
@@ -158,6 +164,7 @@ float NavigationMesh::get_agent_radius() {
 }
 
 void NavigationMesh::set_agent_max_climb(float p_value) {
+	ERR_FAIL_COND(p_value < 0);
 	agent_max_climb = p_value;
 }
 
@@ -166,6 +173,7 @@ float NavigationMesh::get_agent_max_climb() const {
 }
 
 void NavigationMesh::set_agent_max_slope(float p_value) {
+	ERR_FAIL_COND(p_value < 0 || p_value > 90);
 	agent_max_slope = p_value;
 }
 
@@ -174,6 +182,7 @@ float NavigationMesh::get_agent_max_slope() const {
 }
 
 void NavigationMesh::set_region_min_size(float p_value) {
+	ERR_FAIL_COND(p_value < 0);
 	region_min_size = p_value;
 }
 
@@ -182,6 +191,7 @@ float NavigationMesh::get_region_min_size() const {
 }
 
 void NavigationMesh::set_region_merge_size(float p_value) {
+	ERR_FAIL_COND(p_value < 0);
 	region_merge_size = p_value;
 }
 
@@ -190,6 +200,7 @@ float NavigationMesh::get_region_merge_size() const {
 }
 
 void NavigationMesh::set_edge_max_length(float p_value) {
+	ERR_FAIL_COND(p_value < 0);
 	edge_max_length = p_value;
 }
 
@@ -198,6 +209,7 @@ float NavigationMesh::get_edge_max_length() const {
 }
 
 void NavigationMesh::set_edge_max_error(float p_value) {
+	ERR_FAIL_COND(p_value < 0);
 	edge_max_error = p_value;
 }
 
@@ -206,6 +218,7 @@ float NavigationMesh::get_edge_max_error() const {
 }
 
 void NavigationMesh::set_verts_per_poly(float p_value) {
+	ERR_FAIL_COND(p_value < 3);
 	verts_per_poly = p_value;
 }
 
@@ -214,6 +227,7 @@ float NavigationMesh::get_verts_per_poly() const {
 }
 
 void NavigationMesh::set_detail_sample_distance(float p_value) {
+	ERR_FAIL_COND(p_value < 0);
 	detail_sample_distance = p_value;
 }
 
@@ -222,6 +236,7 @@ float NavigationMesh::get_detail_sample_distance() const {
 }
 
 void NavigationMesh::set_detail_sample_max_error(float p_value) {
+	ERR_FAIL_COND(p_value < 0);
 	detail_sample_max_error = p_value;
 }
 
@@ -390,8 +405,8 @@ void NavigationMesh::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("set_collision_mask", "mask"), &NavigationMesh::set_collision_mask);
 	ClassDB::bind_method(D_METHOD("get_collision_mask"), &NavigationMesh::get_collision_mask);
 
-	ClassDB::bind_method(D_METHOD("set_collision_mask_bit", "bit", "value"), &NavigationMesh::set_collision_mask_bit);
-	ClassDB::bind_method(D_METHOD("get_collision_mask_bit", "bit"), &NavigationMesh::get_collision_mask_bit);
+	ClassDB::bind_method(D_METHOD("set_collision_mask_value", "layer_number", "value"), &NavigationMesh::set_collision_mask_value);
+	ClassDB::bind_method(D_METHOD("get_collision_mask_value", "layer_number"), &NavigationMesh::get_collision_mask_value);
 
 	ClassDB::bind_method(D_METHOD("set_source_geometry_mode", "mask"), &NavigationMesh::set_source_geometry_mode);
 	ClassDB::bind_method(D_METHOD("get_source_geometry_mode"), &NavigationMesh::get_source_geometry_mode);
@@ -460,14 +475,6 @@ void NavigationMesh::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("_set_polygons", "polygons"), &NavigationMesh::_set_polygons);
 	ClassDB::bind_method(D_METHOD("_get_polygons"), &NavigationMesh::_get_polygons);
 
-	BIND_CONSTANT(SAMPLE_PARTITION_WATERSHED);
-	BIND_CONSTANT(SAMPLE_PARTITION_MONOTONE);
-	BIND_CONSTANT(SAMPLE_PARTITION_LAYERS);
-
-	BIND_CONSTANT(PARSED_GEOMETRY_MESH_INSTANCES);
-	BIND_CONSTANT(PARSED_GEOMETRY_STATIC_COLLIDERS);
-	BIND_CONSTANT(PARSED_GEOMETRY_BOTH);
-
 	ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR3_ARRAY, "vertices", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "set_vertices", "get_vertices");
 	ADD_PROPERTY(PropertyInfo(Variant::ARRAY, "polygons", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "_set_polygons", "_get_polygons");
 
@@ -494,6 +501,21 @@ void NavigationMesh::_bind_methods() {
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "filter/low_hanging_obstacles"), "set_filter_low_hanging_obstacles", "get_filter_low_hanging_obstacles");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "filter/ledge_spans"), "set_filter_ledge_spans", "get_filter_ledge_spans");
 	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "filter/filter_walkable_low_height_spans"), "set_filter_walkable_low_height_spans", "get_filter_walkable_low_height_spans");
+
+	BIND_ENUM_CONSTANT(SAMPLE_PARTITION_WATERSHED);
+	BIND_ENUM_CONSTANT(SAMPLE_PARTITION_MONOTONE);
+	BIND_ENUM_CONSTANT(SAMPLE_PARTITION_LAYERS);
+	BIND_ENUM_CONSTANT(SAMPLE_PARTITION_MAX);
+
+	BIND_ENUM_CONSTANT(PARSED_GEOMETRY_MESH_INSTANCES);
+	BIND_ENUM_CONSTANT(PARSED_GEOMETRY_STATIC_COLLIDERS);
+	BIND_ENUM_CONSTANT(PARSED_GEOMETRY_BOTH);
+	BIND_ENUM_CONSTANT(PARSED_GEOMETRY_MAX);
+
+	BIND_ENUM_CONSTANT(SOURCE_GEOMETRY_NAVMESH_CHILDREN);
+	BIND_ENUM_CONSTANT(SOURCE_GEOMETRY_GROUPS_WITH_CHILDREN);
+	BIND_ENUM_CONSTANT(SOURCE_GEOMETRY_GROUPS_EXPLICIT);
+	BIND_ENUM_CONSTANT(SOURCE_GEOMETRY_MAX);
 }
 
 void NavigationMesh::_validate_property(PropertyInfo &property) const {