Node placement / mineral / serialization / iron freq / node_dig callback

- Node placement code moved to Lua
- Mineral system removed (added default:stone_with_coal and default:stone_with_iron).
- MapBlock and MapNode serialization updated.
- Mapgen: Frequency of iron increased.
- node_dig callback and related changes.

1 files changed, 30 insertions, 53 deletions

diff --git a/src/mapblock_mesh.cpp b/src/mapblock_mesh.cpp
index db9057e19..b843448c4 100644
--- a/src/mapblock_mesh.cpp
+++ b/src/mapblock_mesh.cpp
@@ -27,7 +27,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "nodedef.h"
 #include "gamedef.h"
 #include "content_mapblock.h"
-#include "mineral.h" // For mineral_block_texture
 
 void MeshMakeData::fill(u32 daynight_ratio, MapBlock *block)
 {
@@ -282,59 +281,37 @@ static void makeFastFace(TileSpec tile, u8 li0, u8 li1, u8 li2, u8 li3, v3f p,
 	dest.push_back(face);
 }
 	
-static TileSpec getTile(const MapNode &node, v3s16 dir,
-		ITextureSource *tsrc, INodeDefManager *nodemgr)
+static TileSpec getTile(const MapNode &node, v3s16 dir, INodeDefManager *nodemgr)
 {
-	const ContentFeatures &f = nodemgr->get(node);
+	// Direction must be (1,0,0), (-1,0,0), (0,1,0), (0,-1,0),
+	// (0,0,1), (0,0,-1) or (0,0,0)
+	assert(dir.X * dir.X + dir.Y * dir.Y + dir.Z * dir.Z <= 1);
+
+	// Convert direction to single integer for table lookup
+	//  0 = (0,0,0)
+	//  1 = (1,0,0)
+	//  2 = (0,1,0)
+	//  3 = (0,0,1)
+	//  4 = invalid, treat as (0,0,0)
+	//  5 = (0,0,-1)
+	//  6 = (0,-1,0)
+	//  7 = (-1,0,0)
+	u8 dir_i = (dir.X + 2 * dir.Y + 3 * dir.Z) & 7;
+
+	// Get rotation for things like chests
+	u8 facedir = node.getFaceDir(nodemgr);
+	assert(facedir <= 3);
 	
-	if(f.param_type == CPT_FACEDIR_SIMPLE)
-		dir = facedir_rotate(node.param1, dir);
-	
-	TileSpec spec;
-	
-	s32 dir_i = -1;
-	
-	if(dir == v3s16(0,0,0))
-		dir_i = -1;
-	else if(dir == v3s16(0,1,0))
-		dir_i = 0;
-	else if(dir == v3s16(0,-1,0))
-		dir_i = 1;
-	else if(dir == v3s16(1,0,0))
-		dir_i = 2;
-	else if(dir == v3s16(-1,0,0))
-		dir_i = 3;
-	else if(dir == v3s16(0,0,1))
-		dir_i = 4;
-	else if(dir == v3s16(0,0,-1))
-		dir_i = 5;
-	
-	if(dir_i == -1)
-		// Non-directional
-		spec = f.tiles[0];
-	else 
-		spec = f.tiles[dir_i];
-	
-	/*
-		If it contains some mineral, change texture id
-	*/
-	if(f.param_type == CPT_MINERAL && tsrc)
+	static const u8 dir_to_tile[4 * 8] =
 	{
-		u8 mineral = node.getMineral(nodemgr);
-		std::string mineral_texture_name = mineral_block_texture(mineral);
-		if(mineral_texture_name != "")
-		{
-			u32 orig_id = spec.texture.id;
-			std::string texture_name = tsrc->getTextureName(orig_id);
-			//texture_name += "^blit:";
-			texture_name += "^";
-			texture_name += mineral_texture_name;
-			u32 new_id = tsrc->getTextureId(texture_name);
-			spec.texture = tsrc->getTexture(new_id);
-		}
-	}
-
-	return spec;
+		// 0  +X  +Y  +Z   0  -Z  -Y  -X
+		   0,  2,  0,  4,  0,  5,  1,  3,  // facedir = 0
+		   0,  4,  0,  3,  0,  2,  1,  5,  // facedir = 1
+		   0,  3,  0,  5,  0,  4,  1,  2,  // facedir = 2
+		   0,  5,  0,  2,  0,  3,  1,  4,  // facedir = 3
+	};
+
+	return nodemgr->get(node).tiles[dir_to_tile[facedir*8 + dir_i]];
 }
 
 /*
@@ -345,7 +322,7 @@ TileSpec getNodeTile(MapNode mn, v3s16 p, v3s16 face_dir,
 		NodeModMap *temp_mods, ITextureSource *tsrc, INodeDefManager *ndef)
 {
 	TileSpec spec;
-	spec = getTile(mn, face_dir, tsrc, ndef);
+	spec = getTile(mn, face_dir, ndef);
 	
 	/*
 		Check temporary modifications on this node
@@ -363,7 +340,7 @@ TileSpec getNodeTile(MapNode mn, v3s16 p, v3s16 face_dir,
 		if(mod.type == NODEMOD_CHANGECONTENT)
 		{
 			MapNode mn2(mod.param);
-			spec = getTile(mn2, face_dir, tsrc, ndef);
+			spec = getTile(mn2, face_dir, ndef);
 		}
 		#endif
 		if(mod.type == NODEMOD_CRACK)