Move NavigationMeshEditorPlugin to Recast module as should be

Modules can register their own editor plugins (like GridMap does),
so no need to put module-specific classes in the `editor/` folder.

Also cleans up the previous SCons env pollution from the Recast
module, integrating its code into libmodules as other modules.

editor/editor_node.cpp

@@ -88,7 +88,6 @@
 #include "editor/plugins/mesh_editor_plugin.h"
 #include "editor/plugins/mesh_instance_editor_plugin.h"
 #include "editor/plugins/multimesh_editor_plugin.h"
-#include "editor/plugins/navigation_mesh_editor_plugin.h"
 #include "editor/plugins/navigation_polygon_editor_plugin.h"
 #include "editor/plugins/particles_2d_editor_plugin.h"
 #include "editor/plugins/particles_editor_plugin.h"
@@ -5365,7 +5364,6 @@ EditorNode::EditorNode() {
 	add_editor_plugin(memnew(TextureEditorPlugin(this)));
 	add_editor_plugin(memnew(AudioBusesEditorPlugin(audio_bus_editor)));
 	add_editor_plugin(memnew(AudioBusesEditorPlugin(audio_bus_editor)));
-	add_editor_plugin(memnew(NavigationMeshEditorPlugin(this)));
 	add_editor_plugin(memnew(SkeletonEditorPlugin(this)));
 	add_editor_plugin(memnew(PhysicalBonePlugin(this)));
 

modules/recast/SCsub

@@ -1,8 +1,9 @@
 #!/usr/bin/env python
 
 Import('env')
+Import('env_modules')
 
-# Not building in a separate env as core needs it
+env_recast = env_modules.Clone()
 
 # Thirdparty source files
 if env['builtin_recast']:
@@ -22,13 +23,10 @@ if env['builtin_recast']:
     ]
     thirdparty_sources = [thirdparty_dir + file for file in thirdparty_sources]
 
-    env.Append(CPPPATH=[thirdparty_dir, thirdparty_dir + "/Include"])
+    env_recast.add_source_files(env.modules_sources, thirdparty_sources)
-
+    env_recast.Append(CPPPATH=[thirdparty_dir + "/Include"])
-    lib = env.add_library("recast_builtin", thirdparty_sources)
-    env.Append(LIBS=[lib])
 
 # Godot source files
-env.add_source_files(env.modules_sources, "*.cpp")
+env_recast.add_source_files(env.modules_sources, "*.cpp")
-env.Append(CCFLAGS=['-DRECAST_ENABLED'])
 
 Export('env')

modules/recast/navigation_mesh_editor_plugin.cpp

@@ -29,13 +29,12 @@
 /*************************************************************************/
 
 #include "navigation_mesh_editor_plugin.h"
+
 #include "io/marshalls.h"
 #include "io/resource_saver.h"
 #include "scene/3d/mesh_instance.h"
 #include "scene/gui/box_container.h"
 
-#ifdef RECAST_ENABLED
-
 void NavigationMeshEditor::_node_removed(Node *p_node) {
 
 	if (p_node == node) {
@@ -162,5 +161,3 @@ NavigationMeshEditorPlugin::NavigationMeshEditorPlugin(EditorNode *p_node) {
 
 NavigationMeshEditorPlugin::~NavigationMeshEditorPlugin() {
 }
-
-#endif // RECAST_ENABLED

modules/recast/navigation_mesh_editor_plugin.h

@@ -31,8 +31,6 @@
 #ifndef NAVIGATION_MESH_GENERATOR_PLUGIN_H
 #define NAVIGATION_MESH_GENERATOR_PLUGIN_H
 
-#ifdef RECAST_ENABLED
-
 #include "editor/editor_node.h"
 #include "editor/editor_plugin.h"
 #include "navigation_mesh_generator.h"
@@ -83,5 +81,4 @@ public:
 	~NavigationMeshEditorPlugin();
 };
 
-#endif // RECAST_ENABLED
 #endif // NAVIGATION_MESH_GENERATOR_PLUGIN_H

modules/recast/navigation_mesh_generator.cpp

@@ -30,8 +30,6 @@
 
 #include "navigation_mesh_generator.h"
 
-#ifdef RECAST_ENABLED
-
 void NavigationMeshGenerator::_add_vertex(const Vector3 &p_vec3, Vector<float> &p_verticies) {
 	p_verticies.push_back(p_vec3.x);
 	p_verticies.push_back(p_vec3.y);
@@ -304,5 +302,3 @@ void NavigationMeshGenerator::clear(Ref<NavigationMesh> p_nav_mesh) {
 		p_nav_mesh->set_vertices(PoolVector<Vector3>());
 	}
 }
-
-#endif //RECAST_ENABLED

modules/recast/navigation_mesh_generator.h

@@ -31,16 +31,11 @@
 #ifndef NAVIGATION_MESH_GENERATOR_H
 #define NAVIGATION_MESH_GENERATOR_H
 
-#ifdef RECAST_ENABLED
-
 #include "editor/editor_node.h"
 #include "editor/editor_settings.h"
-
-#include "scene/3d/mesh_instance.h"
-
-#include "scene/3d/navigation_mesh.h"
-
 #include "os/thread.h"
+#include "scene/3d/mesh_instance.h"
+#include "scene/3d/navigation_mesh.h"
 #include "scene/resources/shape.h"
 
 #include <Recast.h>
@@ -61,6 +56,4 @@ public:
 	static void clear(Ref<NavigationMesh> p_nav_mesh);
 };
 
-#endif // RECAST_ENABLED
-
 #endif // NAVIGATION_MESH_GENERATOR_H

modules/recast/register_types.cpp

@@ -30,5 +30,10 @@
 
 #include "register_types.h"
 
-void register_recast_types() {}
+#include "navigation_mesh_editor_plugin.h"
+
+void register_recast_types() {
+	EditorPlugins::add_by_type<NavigationMeshEditorPlugin>();
+}
+
 void unregister_recast_types() {}