simplify terrain generation plugin API interaction

contrib/terrain_generator/brush_builder.cpp

@@ -8,6 +8,9 @@
 #include "qerplugin.h"
 #include "scenelib.h"
 
+const unsigned int BRUSH_DETAIL_FLAG = 27;
+const unsigned int BRUSH_DETAIL_MASK = ( 1 << BRUSH_DETAIL_FLAG );
+
 // ---------------------------------------------------------------------------
 // Helpers
 // ---------------------------------------------------------------------------
@@ -26,7 +29,7 @@ static void fill_face( _QERFaceData& face,
 	face.m_texdef.shift[0] = 0;
 	face.m_texdef.shift[1] = 0;
 	face.m_texdef.rotate   = 0;
-	face.contents = 0;
+	face.contents = BRUSH_DETAIL_MASK;
 	face.flags    = 0;
 	face.value    = 0;
 }
@@ -186,7 +189,6 @@ void build_terrain_brushes( const BrushData& target, double step_x, double step_
 	}
 
 	select_generated( entity );
-	GlobalRadiant().Brush_setDetail( entity );
 	SceneChangeNotify();
 }
 
@@ -467,9 +469,5 @@ void build_tunnel_brushes( const BrushData& target, double step_x, double step_y
 	select_generated( ceil_entity );
 	select_generated( lwall_entity );
 	select_generated( rwall_entity );
-	GlobalRadiant().Brush_setDetail( floor_entity );
-	GlobalRadiant().Brush_setDetail( ceil_entity );
-	GlobalRadiant().Brush_setDetail( lwall_entity );
-	GlobalRadiant().Brush_setDetail( rwall_entity );
 	SceneChangeNotify();
 }

include/qerplugin.h

@@ -143,6 +143,7 @@ struct _QERFuncTable_1
 	Vector3 ( *Camera_getOrigin )();
 
 	const char* ( *TextureBrowser_getSelectedShader )( );
+	void ( *TextureBrowser_show )( );
 
 	// Qt functions
 	PFN_QERAPP_MESSAGEBOX m_pfnMessageBox;
@@ -150,10 +151,6 @@ struct _QERFuncTable_1
 	PFN_QERAPP_DIRDIALOG m_pfnDirDialog;
 	PFN_QERAPP_COLORDIALOG m_pfnColorDialog;
 	PFN_QERAPP_NEWICON m_pfnNewIcon;
-
-	// Plugin extensions — always append new members here to preserve ABI
-	void ( *TextureBrowser_show )( );
-	void ( *Brush_setDetail )( scene::Node& node );
 };
 
 #include "modulesystem.h"

radiant/brush.h

@@ -1982,12 +1982,13 @@ public:
 	}
 
 	/// \brief Appends a new face constructed from the parameters to the end of the face list.
-	Face* addPlane( const DoubleVector3& p0, const DoubleVector3& p1, const DoubleVector3& p2, const char* shader, const TextureProjection& projection ){
+	Face* addPlane( const DoubleVector3& p0, const DoubleVector3& p1, const DoubleVector3& p2, const char* shader, const TextureProjection& projection, int contentFlags = 0 ){
 		if ( m_faces.size() == c_brush_maxFaces ) {
 			return 0;
 		}
 		undoSave();
 		push_back( FaceSmartPointer( new Face( p0, p1, p2, shader, projection, this ) ) );
+		m_faces.back()->getShader().m_flags.m_contentFlags = contentFlags;
 		m_faces.back()->setDetail( isDetail() );
 		planeChanged();
 		return m_faces.back();

radiant/brushmanip.cpp

@@ -658,26 +658,6 @@ void Scene_BrushSetDetail_Selected( scene::Graph& graph, bool detail ){
 	SceneChangeNotify();
 }
 
-class BrushSetDetailWalker : public scene::Traversable::Walker
-{
-public:
-	bool pre( scene::Node& node ) const override {
-		if ( Brush* brush = Node_getBrush( node ) ) {
-			Brush_forEachFace( *brush, []( Face& face ){ face.setDetail( true ); } );
-		}
-		return true;
-	}
-};
-
-void Brush_setDetail( scene::Node& node ){
-	if ( Brush* brush = Node_getBrush( node ) ) {
-		Brush_forEachFace( *brush, []( Face& face ){ face.setDetail( true ); } );
-	}
-	else if ( scene::Traversable* traversable = Node_getTraversable( node ) ) {
-		traversable->traverse( BrushSetDetailWalker() );
-	}
-}
-
 bool Face_FindReplaceShader( Face& face, const char* find, const char* replace ){
 	if ( shader_equal( face.GetShader(), find ) ) {
 		face.SetShader( replace );

radiant/brushmanip.h

@@ -45,9 +45,6 @@ class Graph;
 class Node;
 }
 void Scene_BrushConstructPrefab( scene::Graph& graph, EBrushPrefab type, std::size_t sides, bool option, const char* shader );
-// Flag every brush in 'node' (a brush, or any node whose subgraph contains
-// brushes, e.g. a group entity) as detail.
-void Brush_setDetail( scene::Node& node );
 class AABB;
 void Scene_BrushResize_Cuboid( scene::Node*& node, const AABB& bounds );
 void Brush_ConstructPlacehoderCuboid( scene::Node& node, const AABB& bounds );

radiant/brushmodule.cpp

@@ -236,7 +236,7 @@ public:
 	}
 	bool Brush_addFace( scene::Node& brush, const _QERFaceData& faceData ) override {
 		Node_getBrush( brush )->undoSave();
-		return Node_getBrush( brush )->addPlane( faceData.m_p0, faceData.m_p1, faceData.m_p2, faceData.m_shader, TextureProjection( faceData.m_texdef, brushprimit_texdef_t(), Vector3( 0, 0, 0 ), Vector3( 0, 0, 0 ) ) ) != 0;
+		return Node_getBrush( brush )->addPlane( faceData.m_p0, faceData.m_p1, faceData.m_p2, faceData.m_shader, TextureProjection( faceData.m_texdef, brushprimit_texdef_t(), Vector3( 0, 0, 0 ), Vector3( 0, 0, 0 ) ), faceData.contents ) != 0;
 	}
 };
 

radiant/groupdialog.h

@@ -39,7 +39,5 @@ inline void RawStringExport( const char* string, const StringImportCallback& imp
 typedef ConstPointerCaller<char, void(const StringImportCallback&), RawStringExport> RawStringExportCaller;
 QWidget* GroupDialog_addPage( const char* tabLabel, QWidget* widget, const StringExportCallback& title );
 
-bool GroupDialog_isShown();
-QWidget* GroupDialog_getPage();
 void GroupDialog_showPage( QWidget* page );
 void GroupDialog_updatePageTitle( QWidget* page );

radiant/plugin.cpp

@@ -58,7 +58,6 @@
 #include "texwindow.h"
 #include "modelwindow.h"
 #include "mainframe.h"
-#include "brushmanip.h"
 #include "build.h"
 #include "mru.h"
 #include "surfacedialog.h"
@@ -153,7 +152,6 @@ public:
 
 		m_radiantcore.TextureBrowser_getSelectedShader = TextureBrowser_GetSelectedShader;
 		m_radiantcore.TextureBrowser_show = TextureBrowser_show;
-		m_radiantcore.Brush_setDetail = Brush_setDetail;
 
 		m_radiantcore.m_pfnMessageBox = &qt_MessageBox;
 		m_radiantcore.m_pfnFileDialog = &file_dialog;

radiant/texwindow.cpp

@@ -625,12 +625,8 @@ void TextureBrowser_toggleShow(){
 }
 
 void TextureBrowser_show(){
-	if ( !g_page_textures )
+	if ( g_page_textures != nullptr )
-		return;
+		GroupDialog_showPage( g_page_textures );
-	if ( GroupDialog_isShown() && GroupDialog_getPage() == g_page_textures )
-		GroupDialog_show(); // already on textures tab — just raise/focus
-	else
-		GroupDialog_showPage( g_page_textures ); // switch to textures tab and show
 }
 
 void TextureBrowser_updateTitle(){