From 1788709e2d9cfa8de36742ed21aec877d48c64d7 Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Sat, 21 Jul 2012 20:23:32 +0300
Subject: [PATCH] Rotate facedir-rotated top and bottom textures too, and
 re-implement nodebox side rotation

---
 src/content_mapblock.cpp | 54 ++++++++--------------------------------
 src/mapblock_mesh.cpp    | 41 +++++++++++++++++++++++++++++-
 2 files changed, 51 insertions(+), 44 deletions(-)

diff --git a/src/content_mapblock.cpp b/src/content_mapblock.cpp
index 3d049f8c..ad819e79 100644
--- a/src/content_mapblock.cpp
+++ b/src/content_mapblock.cpp
@@ -1029,52 +1029,20 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 		break;}
 		case NDT_NODEBOX:
 		{
+			static const v3s16 tile_dirs[6] = {
+				v3s16(0, 1, 0),
+				v3s16(0, -1, 0),
+				v3s16(1, 0, 0),
+				v3s16(-1, 0, 0),
+				v3s16(0, 0, 1),
+				v3s16(0, 0, -1)
+			};
+
 			TileSpec tiles[6];
 			for(int i = 0; i < 6; i++)
 			{
-				tiles[i] = getNodeTileN(n, p, i, data);
-			}
-
-			// Facedir rotation for textures
-			if(f.node_box.type == NODEBOX_FIXED){
-				int facedir = n.getFaceDir(nodedef);
-				if(facedir == 1){ // -90
-					TileSpec old[6];
-					for(int i=0; i<6; i++)
-						old[i] = tiles[i];
-					// right <- back
-					tiles[2] = old[4];
-					// back <- left
-					tiles[4] = old[3];
-					// left <- front
-					tiles[3] = old[5];
-					// front <- right
-					tiles[5] = old[2];
-				}
-				if(facedir == 2){ // 180
-					TileSpec old[6];
-					for(int i=0; i<6; i++)
-						old[i] = tiles[i];
-					// right <-> left
-					tiles[2] = old[3];
-					tiles[3] = old[2];
-					// back <-> front
-					tiles[4] = old[5];
-					tiles[5] = old[4];
-				}
-				if(facedir == 3){ // 90
-					TileSpec old[6];
-					for(int i=0; i<6; i++)
-						old[i] = tiles[i];
-					// right <- front
-					tiles[2] = old[5];
-					// back <- right
-					tiles[4] = old[2];
-					// left <- back
-					tiles[3] = old[4];
-					// front <- left
-					tiles[5] = old[3];
-				}
+				// Handles facedir rotation for textures
+				tiles[i] = getNodeTile(n, p, tile_dirs[i], data);
 			}
 
 			u16 l = getInteriorLight(n, 0, data);
diff --git a/src/mapblock_mesh.cpp b/src/mapblock_mesh.cpp
index 3f40f9c0..9ae9b21c 100644
--- a/src/mapblock_mesh.cpp
+++ b/src/mapblock_mesh.cpp
@@ -605,7 +605,46 @@ TileSpec getNodeTile(MapNode mn, v3s16 p, v3s16 dir, MeshMakeData *data)
 		   0,  5,  0,  2,  0,  3,  1,  4,  // facedir = 3
 	};
 	u8 tileindex = dir_to_tile[facedir*8 + dir_i];
-	return getNodeTileN(mn, p, tileindex, data);
+
+	// If not rotated or is side tile, we're done
+	if(facedir == 0 || (tileindex != 0 && tileindex != 1))
+		return getNodeTileN(mn, p, tileindex, data);
+
+	// This is the top or bottom tile, and it shall be rotated; thus rotate it
+	TileSpec spec = getNodeTileN(mn, p, tileindex, data);
+	if(tileindex == 0){
+		if(facedir == 1){ // -90
+			std::string name = data->m_gamedef->tsrc()->getTextureName(spec.texture.id);
+			name += "^[transformR270";
+			spec.texture = data->m_gamedef->tsrc()->getTexture(name);
+		}
+		else if(facedir == 2){ // 180
+			spec.texture.pos += spec.texture.size;
+			spec.texture.size *= -1;
+		}
+		else if(facedir == 3){ // 90
+			std::string name = data->m_gamedef->tsrc()->getTextureName(spec.texture.id);
+			name += "^[transformR90";
+			spec.texture = data->m_gamedef->tsrc()->getTexture(name);
+		}
+	}
+	else if(tileindex == 1){
+		if(facedir == 1){ // -90
+			std::string name = data->m_gamedef->tsrc()->getTextureName(spec.texture.id);
+			name += "^[transformR90";
+			spec.texture = data->m_gamedef->tsrc()->getTexture(name);
+		}
+		else if(facedir == 2){ // 180
+			spec.texture.pos += spec.texture.size;
+			spec.texture.size *= -1;
+		}
+		else if(facedir == 3){ // 90
+			std::string name = data->m_gamedef->tsrc()->getTextureName(spec.texture.id);
+			name += "^[transformR270";
+			spec.texture = data->m_gamedef->tsrc()->getTexture(name);
+		}
+	}
+	return spec;
 }
 
 static void getTileInfo(
-- 
2.30.2