Modules: Don't build editor-specific classes in templates

They're moved to an `editor` subfolder so that we can easily handle them
separately.

modules/csg/SCsub

@@ -3,7 +3,10 @@
 Import("env")
 Import("env_modules")
 
+# Godot's own source files
 env_csg = env_modules.Clone()
 
 # Godot's own source files
 env_csg.add_source_files(env.modules_sources, "*.cpp")
+if env["tools"]:
+    env_csg.add_source_files(env.modules_sources, "editor/*.cpp")

modules/csg/editor/csg_gizmos.cpp

@@ -30,6 +30,8 @@
 
 #include "csg_gizmos.h"
 
+#ifdef TOOLS_ENABLED
+
 #include "editor/editor_settings.h"
 #include "editor/plugins/node_3d_editor_plugin.h"
 #include "scene/3d/camera_3d.h"
@@ -425,3 +427,5 @@ EditorPluginCSG::EditorPluginCSG() {
 	Ref<CSGShape3DGizmoPlugin> gizmo_plugin = Ref<CSGShape3DGizmoPlugin>(memnew(CSGShape3DGizmoPlugin));
 	Node3DEditor::get_singleton()->add_gizmo_plugin(gizmo_plugin);
 }
+
+#endif // TOOLS_ENABLED

modules/csg/editor/csg_gizmos.h

@@ -31,7 +31,9 @@
 #ifndef CSG_GIZMOS_H
 #define CSG_GIZMOS_H
 
-#include "csg_shape.h"
+#ifdef TOOLS_ENABLED
+
+#include "../csg_shape.h"
 #include "editor/editor_plugin.h"
 #include "editor/plugins/node_3d_editor_gizmos.h"
 
@@ -60,4 +62,6 @@ public:
 	EditorPluginCSG();
 };
 
+#endif // TOOLS_ENABLED
+
 #endif // CSG_GIZMOS_H

modules/csg/register_types.cpp

@@ -30,12 +30,15 @@
 
 #include "register_types.h"
 
-#include "csg_gizmos.h"
-#include "csg_shape.h"
-
-void register_csg_types() {
 #ifndef _3D_DISABLED
 
+#include "csg_shape.h"
+
+#ifdef TOOLS_ENABLED
+#include "editor/csg_gizmos.h"
+#endif
+
+void register_csg_types() {
 	GDREGISTER_ABSTRACT_CLASS(CSGShape3D);
 	GDREGISTER_ABSTRACT_CLASS(CSGPrimitive3D);
 	GDREGISTER_CLASS(CSGMesh3D);
@@ -49,8 +52,9 @@ void register_csg_types() {
 #ifdef TOOLS_ENABLED
 	EditorPlugins::add_by_type<EditorPluginCSG>();
 #endif
-#endif
 }
 
 void unregister_csg_types() {
 }
+
+#endif // _3D_DISABLED