From 1b73f1f78b55c0e7c9d85aa7cba776007484bf49 Mon Sep 17 00:00:00 2001
From: Rudolf Polzer <divverent@alientrap.org>
Date: Sat, 9 Oct 2010 19:28:19 +0200
Subject: [PATCH] the decompiler now can convert .map files too

---
 tools/quake3/q3map2/main.c     | 59 ++++++++++++++++++++++++++++++----
 tools/quake3/q3map2/map.c      | 13 ++++----
 tools/quake3/q3map2/q3map2.h   |  2 +-
 tools/quake3/q3map2/writebsp.c |  3 +-
 4 files changed, 62 insertions(+), 15 deletions(-)

diff --git a/tools/quake3/q3map2/main.c b/tools/quake3/q3map2/main.c
index c600eaf2..55147b3a 100644
--- a/tools/quake3/q3map2/main.c
+++ b/tools/quake3/q3map2/main.c
@@ -1430,23 +1430,71 @@ int ScaleBSPMain( int argc, char **argv )
 }
 
 
+/*
+PseudoCompileBSP()
+a stripped down ProcessModels
+*/
 void PseudoCompileBSP()
 {
-	// a stripped down ProcessModels
+	int models;
+	char modelValue[10];
+	entity_t *entity;
+	tree_t *tree;
+	node_t *node;
+	brush_t *brush;
+	side_t *side;
+	int i;
+
+        SetDrawSurfacesBuffer();
+	mapDrawSurfs = safe_malloc( sizeof( mapDrawSurface_t ) * MAX_MAP_DRAW_SURFS );
+	memset( mapDrawSurfs, 0, sizeof( mapDrawSurface_t ) * MAX_MAP_DRAW_SURFS );
+	numMapDrawSurfs = 0;
+
 	BeginBSPFile();
+	models = 1;
 	for( mapEntityNum = 0; mapEntityNum < numEntities; mapEntityNum++ )
 	{
 		/* get entity */
 		entity = &entities[ mapEntityNum ];
 		if( entity->brushes == NULL && entity->patches == NULL )
 			continue;
+
+		if(mapEntityNum != 0)
+		{
+			sprintf( modelValue, "*%d", models++);
+			SetKeyValue(entity, "model", modelValue);
+		}
 		
 		/* process the model */
 		Sys_FPrintf( SYS_VRB, "############### model %i ###############\n", numBSPModels );
 		BeginModel();
-		entity>firstDrawSurf = 0;
-		EmitBrushes(entity->brushes, &entity>firstBrush, &entity>numBrushes );
-		EndModel(entity, NULL);
+
+		entity->firstDrawSurf = numMapDrawSurfs;
+
+		node = AllocNode();
+		node->planenum = PLANENUM_LEAF;
+		tree = AllocTree();
+		tree->headnode = node;
+
+		/* a minimized ClipSidesIntoTree */
+		for( brush = entity->brushes; brush; brush = brush->next )
+		{
+			/* walk the brush sides */
+			for( i = 0; i < brush->numsides; i++ )
+			{
+				/* get side */
+				side = &brush->sides[ i ];
+				if( side->winding == NULL )
+					continue;
+				/* save this winding as a visible surface */
+				DrawSurfaceForSide(entity, brush, side, side->winding);
+			}
+		}
+
+		FilterDrawsurfsIntoTree(entity, tree);
+
+		EmitBrushes(entity->brushes, &entity->firstBrush, &entity->numBrushes );
+		EndModel(entity, node);
 	}
 }
 
@@ -1530,8 +1578,7 @@ int ConvertBSPMain( int argc, char **argv )
 		StripExtension(source);
 		DefaultExtension(source, ".map");
 		Sys_Printf("Loading %s\n", source);
-		LoadMapFile(name, qfalse, qtrue);
-		ParseEntities();
+		LoadMapFile(source, qfalse, qtrue);
 		PseudoCompileBSP();
 	}
 	else
diff --git a/tools/quake3/q3map2/map.c b/tools/quake3/q3map2/map.c
index 3240153f..448a24fb 100644
--- a/tools/quake3/q3map2/map.c
+++ b/tools/quake3/q3map2/map.c
@@ -620,7 +620,7 @@ static void MergeOrigin(entity_t *ent, vec3_t origin)
 	SetKeyValue(ent, "origin", string);
 }
 
-brush_t *FinishBrush( void )
+brush_t *FinishBrush( qboolean noCollapseGroups )
 {
 	brush_t		*b;
 	
@@ -665,7 +665,8 @@ brush_t *FinishBrush( void )
 	}
 	
 	/* add bevel planes */
-	AddBrushBevels();
+	if(!noCollapseGroups)
+		AddBrushBevels();
 	
 	/* keep it */
 	b = CopyBrush( buildBrush );
@@ -1034,7 +1035,7 @@ ParseBrush()
 parses a brush out of a map file and sets it up
 */
 
-static void ParseBrush( qboolean onlyLights )
+static void ParseBrush( qboolean onlyLights, qboolean noCollapseGroups )
 {
 	brush_t	*b;
 	
@@ -1081,7 +1082,7 @@ static void ParseBrush( qboolean onlyLights )
 	}
 	
 	/* finish the brush */
-	b = FinishBrush();
+	b = FinishBrush(noCollapseGroups);
 }
 
 
@@ -1497,7 +1498,7 @@ static qboolean ParseMapEntity( qboolean onlyLights, qboolean noCollapseGroups )
 				g_bBrushPrimit = BPRIMIT_NEWBRUSHES;
 				
 				/* parse brush primitive */
-				ParseBrush( onlyLights );
+				ParseBrush( onlyLights, noCollapseGroups );
 			}
 			else
 			{
@@ -1507,7 +1508,7 @@ static qboolean ParseMapEntity( qboolean onlyLights, qboolean noCollapseGroups )
 				
 				/* parse old brush format */
 				UnGetToken();
-				ParseBrush( onlyLights );
+				ParseBrush( onlyLights, noCollapseGroups );
 			}
 			entitySourceBrushes++;
 		}
diff --git a/tools/quake3/q3map2/q3map2.h b/tools/quake3/q3map2/q3map2.h
index 4ec0319c..28a94a33 100644
--- a/tools/quake3/q3map2/q3map2.h
+++ b/tools/quake3/q3map2/q3map2.h
@@ -1580,7 +1580,7 @@ void 						LoadMapFile( char *filename, qboolean onlyLights, qboolean noCollapse
 int							FindFloatPlane( vec3_t normal, vec_t dist, int numPoints, vec3_t *points );
 int							PlaneTypeForNormal( vec3_t normal );
 void						AddBrushBevels( void );
-brush_t						*FinishBrush( void );
+brush_t						*FinishBrush(qboolean noCollapseGroups);
 
 
 /* portals.c */
diff --git a/tools/quake3/q3map2/writebsp.c b/tools/quake3/q3map2/writebsp.c
index 7d63e357..2ef8962b 100644
--- a/tools/quake3/q3map2/writebsp.c
+++ b/tools/quake3/q3map2/writebsp.c
@@ -630,8 +630,7 @@ void EndModel( entity_t *e, node_t *headnode )
 	
 	/* emit the bsp */
 	mod = &bspModels[ numBSPModels ];
-	if(headnode)
-		EmitDrawNode_r( headnode );
+	EmitDrawNode_r( headnode );
 	
 	/* set surfaces and brushes */
 	mod->numBSPSurfaces = numBSPDrawSurfaces - mod->firstBSPSurface;
-- 
2.39.2