Merge branch 'master' of https://github.com/erlehmann/minetest-delta.git into upstream_merge

Conflicts:
	.gitignore
	CMakeLists.txt
	data/heart.png
	src/CMakeLists.txt
	src/game.cpp
	src/guiMainMenu.cpp
	src/inventory.cpp
	src/map.cpp
	src/mapblock.cpp
	src/mapnode.cpp
	src/mapnode.h
	src/materials.cpp
	src/server.cpp

Signed-off-by: Sebastian Rühl <bahamada_basti@yahoo.de>

13 files changed, 603 insertions, 41 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 73a960ecc..f62a8626b 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -108,6 +108,7 @@ set(minetest_SRCS
 	clouds.cpp
 	clientobject.cpp
 	guiMainMenu.cpp
+	guiKeyChangeMenu.cpp
 	guiMessageMenu.cpp
 	guiTextInputMenu.cpp
 	guiInventoryMenu.cpp
diff --git a/src/client.cpp b/src/client.cpp
index abc056505..e86b3a4f8 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -722,6 +722,7 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 				*/
 				//dstream<<"Updating"<<std::endl;
 				block->deSerialize(istr, ser_version);
+				//block->setChangedFlag();
 			}
 			catch(InvalidPositionException &e)
 			{
@@ -732,6 +733,7 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 				block = new MapBlock(&m_env.getMap(), p);
 				block->deSerialize(istr, ser_version);
 				sector->insertBlock(block);
+				//block->setChangedFlag();
 
 				//DEBUG
 				/*NodeMod mod;
@@ -742,6 +744,27 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 				block->setTempMod(v3s16(8,8,8), mod);
 				block->setTempMod(v3s16(8,7,8), mod);
 				block->setTempMod(v3s16(8,6,8), mod);*/
+#if 0
+				/*
+					Add some coulds
+					Well, this is a dumb way to do it, they should just
+					be drawn as separate objects. But the looks of them
+					can be tested this way.
+				*/
+				if(p.Y == 3)
+				{
+					NodeMod mod;
+					mod.type = NODEMOD_CHANGECONTENT;
+					mod.param = CONTENT_CLOUD;
+					v3s16 p2;
+					p2.Y = 8;
+					for(p2.X=3; p2.X<=13; p2.X++)
+					for(p2.Z=3; p2.Z<=13; p2.Z++)
+					{
+						block->setTempMod(p2, mod);
+					}
+				}
+#endif
 			}
 		} //envlock
 
@@ -772,7 +795,6 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 		*/
 
 		//m_env.getClientMap().updateMeshes(block->getPos(), getDayNightRatio());
-		
 		/*
 			Add it to mesh update queue and set it to be acknowledged after update.
 		*/
diff --git a/src/content_craft.cpp b/src/content_craft.cpp
index 32d2e6d48..069e68300 100644
--- a/src/content_craft.cpp
+++ b/src/content_craft.cpp
@@ -261,6 +261,24 @@ InventoryItem *craft_get_result(InventoryItem **items)
 		}
 	}
 
+	// Rail
+	{
+		ItemSpec specs[9];
+		specs[0] = ItemSpec(ITEM_CRAFT, "steel_ingot");
+		specs[1] = ItemSpec(ITEM_CRAFT, "Stick");
+		specs[2] = ItemSpec(ITEM_CRAFT, "steel_ingot");
+		specs[3] = ItemSpec(ITEM_CRAFT, "steel_ingot");
+		specs[4] = ItemSpec(ITEM_CRAFT, "Stick");
+		specs[5] = ItemSpec(ITEM_CRAFT, "steel_ingot");
+		specs[6] = ItemSpec(ITEM_CRAFT, "steel_ingot");
+		specs[7] = ItemSpec(ITEM_CRAFT, "Stick");
+		specs[8] = ItemSpec(ITEM_CRAFT, "steel_ingot");
+		if(checkItemCombination(items, specs))
+		{
+			return new MaterialItem(CONTENT_RAIL, 15);
+		}
+	}
+
 	// Chest
 	{
 		ItemSpec specs[9];
@@ -313,6 +331,87 @@ InventoryItem *craft_get_result(InventoryItem **items)
 		}
 	}
 
+	// Sandstone
+	{
+		ItemSpec specs[9];
+		specs[3] = ItemSpec(ITEM_MATERIAL, CONTENT_SAND);
+		specs[4] = ItemSpec(ITEM_MATERIAL, CONTENT_SAND);
+		specs[6] = ItemSpec(ITEM_MATERIAL, CONTENT_SAND);
+		specs[7] = ItemSpec(ITEM_MATERIAL, CONTENT_SAND);
+		if(checkItemCombination(items, specs))
+		{
+			return new MaterialItem(CONTENT_SANDSTONE, 1);
+		}
+	}
+
+	// Clay
+	{
+		ItemSpec specs[9];
+		specs[3] = ItemSpec(ITEM_CRAFT, "lump_of_clay");
+		specs[4] = ItemSpec(ITEM_CRAFT, "lump_of_clay");
+		specs[6] = ItemSpec(ITEM_CRAFT, "lump_of_clay");
+		specs[7] = ItemSpec(ITEM_CRAFT, "lump_of_clay");
+		if(checkItemCombination(items, specs))
+		{
+			return new MaterialItem(CONTENT_CLAY, 1);
+		}
+	}
+
+	// Brick
+	{
+		ItemSpec specs[9];
+		specs[3] = ItemSpec(ITEM_CRAFT, "clay_brick");
+		specs[4] = ItemSpec(ITEM_CRAFT, "clay_brick");
+		specs[6] = ItemSpec(ITEM_CRAFT, "clay_brick");
+		specs[7] = ItemSpec(ITEM_CRAFT, "clay_brick");
+		if(checkItemCombination(items, specs))
+		{
+			return new MaterialItem(CONTENT_BRICK, 1);
+		}
+	}
+
+	// Paper
+	{
+		ItemSpec specs[9];
+		specs[3] = ItemSpec(ITEM_MATERIAL, CONTENT_PAPYRUS);
+		specs[4] = ItemSpec(ITEM_MATERIAL, CONTENT_PAPYRUS);
+		specs[5] = ItemSpec(ITEM_MATERIAL, CONTENT_PAPYRUS);
+		if(checkItemCombination(items, specs))
+		{
+			return new CraftItem("paper", 1);
+		}
+	}
+
+	// Book
+	{
+		ItemSpec specs[9];
+		specs[1] = ItemSpec(ITEM_CRAFT, "paper");
+		specs[4] = ItemSpec(ITEM_CRAFT, "paper");
+		specs[7] = ItemSpec(ITEM_CRAFT, "paper");
+		if(checkItemCombination(items, specs))
+		{
+			return new CraftItem("book", 1);
+		}
+	}
+
+	// Book shelf
+	{
+		ItemSpec specs[9];
+		specs[0] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
+		specs[1] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
+		specs[2] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
+		specs[3] = ItemSpec(ITEM_CRAFT, "book");
+		specs[4] = ItemSpec(ITEM_CRAFT, "book");
+		specs[5] = ItemSpec(ITEM_CRAFT, "book");
+		specs[6] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
+		specs[7] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
+		specs[8] = ItemSpec(ITEM_MATERIAL, CONTENT_WOOD);
+		if(checkItemCombination(items, specs))
+		{
+			return new MaterialItem(CONTENT_BOOKSHELF, 1);
+		}
+	}
+
 	return NULL;
 }
 
@@ -353,10 +452,17 @@ void craft_set_creative_inventory(Player *player)
 		CONTENT_MUD,
 		CONTENT_STONE,
 		CONTENT_SAND,
+		CONTENT_SANDSTONE,
+		CONTENT_CLAY,
+		CONTENT_BRICK,
 		CONTENT_TREE,
 		CONTENT_LEAVES,
+		CONTENT_CACTUS,
+		CONTENT_PAPYRUS,
+		CONTENT_BOOKSHELF,
 		CONTENT_GLASS,
 		CONTENT_FENCE,
+		CONTENT_RAIL,
 		CONTENT_MESE,
 		CONTENT_WATERSOURCE,
 		CONTENT_CLOUD,
diff --git a/src/content_inventory.cpp b/src/content_inventory.cpp
index 3b72b31f1..357c8ef26 100644
--- a/src/content_inventory.cpp
+++ b/src/content_inventory.cpp
@@ -48,12 +48,20 @@ std::string item_craft_get_image_name(const std::string &subname)
 {
 	if(subname == "Stick")
 		return "stick.png";
+	else if(subname == "paper")
+		return "paper.png";
+	else if(subname == "book")
+		return "book.png";
 	else if(subname == "lump_of_coal")
 		return "lump_of_coal.png";
 	else if(subname == "lump_of_iron")
 		return "lump_of_iron.png";
+	else if(subname == "lump_of_clay")
+		return "lump_of_clay.png";
 	else if(subname == "steel_ingot")
 		return "steel_ingot.png";
+	else if(subname == "clay_brick")
+		return "clay_brick.png";
 	else if(subname == "rat")
 		return "rat.png";
 	else
@@ -82,7 +90,7 @@ s16 item_craft_get_drop_count(const std::string &subname)
 
 bool item_craft_is_cookable(const std::string &subname)
 {
-	if(subname == "lump_of_iron")
+	if(subname == "lump_of_iron" || subname == "lump_of_clay")
 		return true;
 		
 	return false;
@@ -92,6 +100,8 @@ InventoryItem* item_craft_create_cook_result(const std::string &subname)
 {
 	if(subname == "lump_of_iron")
 		return new CraftItem("steel_ingot", 1);
+	else if(subname == "lump_of_clay")
+		return new CraftItem("clay_brick", 1);
 
 	return NULL;
 }
diff --git a/src/content_mapblock.cpp b/src/content_mapblock.cpp
index bc701aadf..9ef0599d1 100644
--- a/src/content_mapblock.cpp
+++ b/src/content_mapblock.cpp
@@ -188,6 +188,16 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 	material_general.setFlag(video::EMF_FOG_ENABLE, true);
 	material_general.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
 
+
+	// Papyrus material
+	video::SMaterial material_papyrus;
+	material_papyrus.setFlag(video::EMF_LIGHTING, false);
+	material_papyrus.setFlag(video::EMF_BILINEAR_FILTER, false);
+	material_papyrus.setFlag(video::EMF_FOG_ENABLE, true);
+	material_papyrus.MaterialType = video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
+	AtlasPointer pa_papyrus = g_texturesource->getTexture(
+			g_texturesource->getTextureId("papyrus.png"));
+	material_papyrus.setTexture(0, pa_papyrus.atlas);
 	for(s16 z=0; z<MAP_BLOCKSIZE; z++)
 	for(s16 y=0; y<MAP_BLOCKSIZE; y++)
 	for(s16 x=0; x<MAP_BLOCKSIZE; x++)
@@ -857,9 +867,8 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 				TileSpec ts = n.getTile(dir);
 				AtlasPointer ap = ts.texture;
 				material_general.setTexture(0, ap.atlas);
-
 				video::S3DVertex vertices[4] =
-				{
+ 				{
 					/*video::S3DVertex(-BS/2,-BS/2,BS/2, 0,0,0, c, 0,1),
 					video::S3DVertex(BS/2,-BS/2,BS/2, 0,0,0, c, 1,1),
 					video::S3DVertex(BS/2,BS/2,BS/2, 0,0,0, c, 1,0),
@@ -895,14 +904,56 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 						vertices[i].Pos.rotateXZBy(90);
 				}
 				else if(j == 4)
+
+				for(u16 i=0; i<4; i++)
+				{
+					vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
+				}
+
+				u16 indices[] = {0,1,2,2,3,0};
+				// Add to mesh collector
+				collector.append(material_general, vertices, 4, indices, 6);
+			}
+		}
+#endif
+		else if(n.d == CONTENT_PAPYRUS)
+		{
+			u8 l = decode_light(undiminish_light(n.getLightBlend(data->m_daynight_ratio)));
+			video::SColor c(255,l,l,l);
+
+			for(u32 j=0; j<4; j++)
+			{
+				video::S3DVertex vertices[4] =
+				{
+					video::S3DVertex(-BS/2,-BS/2,0, 0,0,0, c,
+						pa_papyrus.x0(), pa_papyrus.y1()),
+					video::S3DVertex(BS/2,-BS/2,0, 0,0,0, c,
+						pa_papyrus.x1(), pa_papyrus.y1()),
+					video::S3DVertex(BS/2,BS/2,0, 0,0,0, c,
+						pa_papyrus.x1(), pa_papyrus.y0()),
+					video::S3DVertex(-BS/2,BS/2,0, 0,0,0, c,
+						pa_papyrus.x0(), pa_papyrus.y0()),
+				};
+
+				if(j == 0)
 				{
 					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateYZBy(-90);
+						vertices[i].Pos.rotateXZBy(45);
 				}
-				else if(j == 5)
+				else if(j == 1)
 				{
 					for(u16 i=0; i<4; i++)
-						vertices[i].Pos.rotateYZBy(90);
+						vertices[i].Pos.rotateXZBy(-45);
+				}
+				else if(j == 2)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(135);
+				}
+				else if(j == 3)
+				{
+					for(u16 i=0; i<4; i++)
+						vertices[i].Pos.rotateXZBy(-135);
 				}
 
 				for(u16 i=0; i<4; i++)
@@ -912,11 +963,113 @@ void mapblock_mesh_generate_special(MeshMakeData *data,
 
 				u16 indices[] = {0,1,2,2,3,0};
 				// Add to mesh collector
-				collector.append(material_general, vertices, 4, indices, 6);
+				collector.append(material_papyrus, vertices, 4, indices, 6);
 			}
 		}
-#endif
+		else if(n.d == CONTENT_RAIL)
+		{
+			u8 l = decode_light(n.getLightBlend(data->m_daynight_ratio));
+			video::SColor c(255,l,l,l);
+
+			bool is_rail_x [] = { false, false };  /* x-1, x+1 */
+			bool is_rail_z [] = { false, false };  /* z-1, z+1 */
+
+			MapNode n_minus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x-1,y,z));
+			MapNode n_plus_x = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x+1,y,z));
+			MapNode n_minus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z-1));
+			MapNode n_plus_z = data->m_vmanip.getNodeNoEx(blockpos_nodes + v3s16(x,y,z+1));
+
+			if(n_minus_x.d == CONTENT_RAIL)
+				is_rail_x[0] = true;
+			if(n_plus_x.d == CONTENT_RAIL)
+				is_rail_x[1] = true;
+			if(n_minus_z.d == CONTENT_RAIL)
+				is_rail_z[0] = true;
+			if(n_plus_z.d == CONTENT_RAIL)
+				is_rail_z[1] = true;
+
+			float d = (float)BS/16;
+			video::S3DVertex vertices[4] =
+			{
+				video::S3DVertex(-BS/2,-BS/2+d,-BS/2, 0,0,0, c,
+					0, 1),
+				video::S3DVertex(BS/2,-BS/2+d,-BS/2, 0,0,0, c,
+					1, 1),
+				video::S3DVertex(BS/2,-BS/2+d,BS/2, 0,0,0, c,
+					1, 0),
+				video::S3DVertex(-BS/2,-BS/2+d,BS/2, 0,0,0, c,
+					0, 0),
+			};
+
+			video::SMaterial material_rail;
+			material_rail.setFlag(video::EMF_LIGHTING, false);
+			material_rail.setFlag(video::EMF_BACK_FACE_CULLING, false);
+			material_rail.setFlag(video::EMF_BILINEAR_FILTER, false);
+			material_rail.setFlag(video::EMF_FOG_ENABLE, true);
+			material_rail.MaterialType
+					= video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF;
+
+			int adjacencies = is_rail_x[0] + is_rail_x[1] + is_rail_z[0] + is_rail_z[1];
+
+			// Assign textures
+			if(adjacencies < 2)
+				material_rail.setTexture(0, g_texturesource->getTextureRaw("rail.png"));
+			else if(adjacencies == 2)
+			{
+				if((is_rail_x[0] && is_rail_x[1]) || (is_rail_z[0] && is_rail_z[1]))
+					material_rail.setTexture(0, g_texturesource->getTextureRaw("rail.png"));
+				else
+					material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_curved.png"));
+			}
+			else if(adjacencies == 3)
+				material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_t_junction.png"));
+			else if(adjacencies == 4)
+				material_rail.setTexture(0, g_texturesource->getTextureRaw("rail_crossing.png"));
 
+			// Rotate textures
+			int angle = 0;
+
+			if(adjacencies == 1)
+			{
+				if(is_rail_x[0] || is_rail_x[1])
+					angle = 90;
+			}
+			else if(adjacencies == 2)
+			{
+				if(is_rail_x[0] && is_rail_x[1])
+					angle = 90;
+				else if(is_rail_x[0] && is_rail_z[0])
+					angle = 270;
+				else if(is_rail_x[0] && is_rail_z[1])
+					angle = 180;
+				else if(is_rail_x[1] && is_rail_z[1])
+					angle = 90;
+			}
+			else if(adjacencies == 3)
+			{
+				if(!is_rail_x[0])
+					angle=0;
+				if(!is_rail_x[1])
+					angle=180;
+				if(!is_rail_z[0])
+					angle=90;
+				if(!is_rail_z[1])
+					angle=270;
+			}
+
+			if(angle != 0) {
+				for(u16 i=0; i<4; i++)
+					vertices[i].Pos.rotateXZBy(angle);
+			}
+
+			for(s32 i=0; i<4; i++)
+			{
+				vertices[i].Pos += intToFloat(p + blockpos_nodes, BS);
+			}
+
+			u16 indices[] = {0,1,2,2,3,0};
+			collector.append(material_rail, vertices, 4, indices, 6);
+		}
 	}
 }
 #endif
diff --git a/src/content_mapnode.cpp b/src/content_mapnode.cpp
index 403fb66d3..2e7a240f3 100644
--- a/src/content_mapnode.cpp
+++ b/src/content_mapnode.cpp
@@ -99,6 +99,33 @@ void content_mapnode_init()
 	f->dug_item = std::string("MaterialItem ")+itos(i)+" 1";
 	setDirtLikeDiggingProperties(f->digging_properties, 1.75);
 	
+	i = CONTENT_SANDSTONE;
+	f = &content_features(i);
+	f->setAllTextures("sandstone.png");
+	f->setInventoryTextureCube("sandstone.png", "sandstone.png", "sandstone.png");
+	f->param_type = CPT_MINERAL;
+	f->is_ground_content = true;
+	f->dug_item = std::string("MaterialItem ")+itos(CONTENT_SAND)+" 1";
+	setDirtLikeDiggingProperties(f->digging_properties, 1.0);
+
+	i = CONTENT_CLAY;
+	f = &content_features(i);
+	f->setAllTextures("clay.png");
+	f->setInventoryTextureCube("clay.png", "clay.png", "clay.png");
+	f->param_type = CPT_MINERAL;
+	f->is_ground_content = true;
+	f->dug_item = std::string("CraftItem lump_of_clay 4");
+	setDirtLikeDiggingProperties(f->digging_properties, 1.0);
+
+	i = CONTENT_BRICK;
+	f = &content_features(i);
+	f->setAllTextures("brick.png");
+	f->setInventoryTextureCube("brick.png", "brick.png", "brick.png");
+	f->param_type = CPT_MINERAL;
+	f->is_ground_content = true;
+	f->dug_item = std::string("CraftItem clay_brick 4");
+	setStoneLikeDiggingProperties(f->digging_properties, 1.0);
+
 	i = CONTENT_TREE;
 	f = &content_features(i);
 	f->setAllTextures("tree.png");
@@ -127,6 +154,40 @@ void content_mapnode_init()
 	f->dug_item = std::string("MaterialItem ")+itos(i)+" 1";
 	setWoodLikeDiggingProperties(f->digging_properties, 0.15);
 
+	i = CONTENT_CACTUS;
+	f = &content_features(i);
+	f->setAllTextures("cactus_side.png");
+	f->setTexture(0, "cactus_top.png");
+	f->setTexture(1, "cactus_top.png");
+	f->setInventoryTextureCube("cactus_top.png", "cactus_side.png", "cactus_side.png");
+	f->param_type = CPT_MINERAL;
+	f->is_ground_content = true;
+	f->dug_item = std::string("MaterialItem ")+itos(i)+" 1";
+	setWoodLikeDiggingProperties(f->digging_properties, 0.75);
+
+	i = CONTENT_PAPYRUS;
+	f = &content_features(i);
+	f->setInventoryTexture("papyrus.png");
+	f->light_propagates = true;
+	f->param_type = CPT_LIGHT;
+	f->is_ground_content = true;
+	f->dug_item = std::string("MaterialItem ")+itos(i)+" 1";
+	f->solidness = 0; // drawn separately, makes no faces
+	f->walkable = false;
+	setWoodLikeDiggingProperties(f->digging_properties, 0.25);
+
+	i = CONTENT_BOOKSHELF;
+	f = &content_features(i);
+	f->setAllTextures("bookshelf.png");
+	f->setTexture(0, "wood.png");
+	f->setTexture(1, "wood.png");
+	// FIXME: setInventoryTextureCube() only cares for the first texture
+	f->setInventoryTextureCube("bookshelf.png", "bookshelf.png", "bookshelf.png");
+	//f->setInventoryTextureCube("wood.png", "bookshelf.png", "bookshelf.png");
+	f->param_type = CPT_MINERAL;
+	f->is_ground_content = true;
+	setWoodLikeDiggingProperties(f->digging_properties, 0.75);
+
 	i = CONTENT_GLASS;
 	f = &content_features(i);
 	f->light_propagates = true;
@@ -148,6 +209,18 @@ void content_mapnode_init()
 	f->setInventoryTexture("item_fence.png");
 	setWoodLikeDiggingProperties(f->digging_properties, 0.75);
 
+	i = CONTENT_RAIL;
+	f = &content_features(i);
+	f->setInventoryTexture("rail.png");
+	f->light_propagates = true;
+	f->param_type = CPT_LIGHT;
+	f->is_ground_content = true;
+	f->dug_item = std::string("MaterialItem ")+itos(i)+" 1";
+	f->solidness = 0; // drawn separately, makes no faces
+	f->air_equivalent = true; // grass grows underneath
+	f->walkable = false;
+	setDirtLikeDiggingProperties(f->digging_properties, 0.75);
+
 	// Deprecated
 	i = CONTENT_COALSTONE;
 	f = &content_features(i);
diff --git a/src/content_mapnode.h b/src/content_mapnode.h
index e314807f9..e53624c21 100644
--- a/src/content_mapnode.h
+++ b/src/content_mapnode.h
@@ -50,6 +50,13 @@ void content_mapnode_init();
 #define CONTENT_FENCE 21
 #define CONTENT_MOSSYCOBBLE 22
 #define CONTENT_GRAVEL 23
+#define CONTENT_SANDSTONE 24
+#define CONTENT_CACTUS 25
+#define CONTENT_BRICK 26
+#define CONTENT_CLAY 27
+#define CONTENT_PAPYRUS 28
+#define CONTENT_BOOKSHELF 29
+#define CONTENT_RAIL 30
 
 #endif
 
diff --git a/src/environment.cpp b/src/environment.cpp
index cd255341f..e2c704259 100644
--- a/src/environment.cpp
+++ b/src/environment.cpp
@@ -592,7 +592,7 @@ void ServerEnvironment::activateBlock(MapBlock *block, u32 additional_dtime)
 	block->setTimestamp(m_game_time);
 
 	//dstream<<"Block is "<<dtime_s<<" seconds old."<<std::endl;
-	
+
 	// Activate stored objects
 	activateObjects(block);
 
@@ -610,7 +610,7 @@ void ServerEnvironment::activateBlock(MapBlock *block, u32 additional_dtime)
 
 	// TODO: Do something
 	// TODO: Implement usage of ActiveBlockModifier
-	
+
 	// Here's a quick demonstration
 	v3s16 p0;
 	for(p0.X=0; p0.X<MAP_BLOCKSIZE; p0.X++)
@@ -754,8 +754,8 @@ void ServerEnvironment::step(float dtime)
 			MapBlock *block = m_map->getBlockNoCreateNoEx(p);
 			if(block==NULL)
 				continue;
-			
 			// Set current time as timestamp (and let it set ChangedFlag)
+
 			block->setTimestamp(m_game_time);
 		}
 
@@ -776,7 +776,75 @@ void ServerEnvironment::step(float dtime)
 			if(block==NULL)
 				continue;
 
-			activateBlock(block);
+			// Get time difference
+			u32 dtime_s = 0;
+			u32 stamp = block->getTimestamp();
+			if(m_game_time > stamp && stamp != BLOCK_TIMESTAMP_UNDEFINED)
+				dtime_s = m_game_time - block->getTimestamp();
+
+			// Set current time as timestamp (and let it set ChangedFlag)
+			block->setTimestamp(m_game_time);
+
+			//dstream<<"Block is "<<dtime_s<<" seconds old."<<std::endl;
+
+			// Activate stored objects
+			activateObjects(block);
+
+			// Run node metadata
+			bool changed = block->m_node_metadata.step((float)dtime_s);
+			if(changed)
+			{
+				MapEditEvent event;
+				event.type = MEET_BLOCK_NODE_METADATA_CHANGED;
+				event.p = p;
+				m_map->dispatchEvent(&event);
+
+				block->setChangedFlag();
+			}
+
+			// TODO: Do something
+			// TODO: Implement usage of ActiveBlockModifier
+
+			// Here's a quick demonstration
+			v3s16 p0;
+			for(p0.X=0; p0.X<MAP_BLOCKSIZE; p0.X++)
+			for(p0.Y=0; p0.Y<MAP_BLOCKSIZE; p0.Y++)
+			for(p0.Z=0; p0.Z<MAP_BLOCKSIZE; p0.Z++)
+			{
+				v3s16 p = p0 + block->getPosRelative();
+				MapNode n = block->getNodeNoEx(p0);
+				// Test something:
+				// Convert all mud under proper day lighting to grass
+				if(n.d == CONTENT_MUD)
+				{
+					if(dtime_s > 300)
+					{
+						MapNode n_top = block->getNodeNoEx(p0+v3s16(0,1,0));
+						if(content_features(n_top.d).air_equivalent &&
+								n_top.getLight(LIGHTBANK_DAY) >= 13)
+						{
+							n.d = CONTENT_GRASS;
+							m_map->addNodeWithEvent(p, n);
+						}
+					}
+				}
+				/*
+					Convert grass into mud if under something else than air
+				*/
+				else if(n.d == CONTENT_GRASS)
+				{
+					//if(myrand()%20 == 0)
+					{
+						MapNode n_top = block->getNodeNoEx(p0+v3s16(0,1,0));
+						if(n_top.d != CONTENT_AIR
+								&& n_top.d != CONTENT_IGNORE)
+						{
+							n.d = CONTENT_MUD;
+							m_map->addNodeWithEvent(p, n);
+						}
+					}
+				}
+			}
 		}
 	}
 
@@ -889,8 +957,8 @@ void ServerEnvironment::step(float dtime)
 							n.d = CONTENT_MUD;
 							m_map->addNodeWithEvent(p, n);
 						}
+						}
 					}
-				}
 			}
 		}
 	}
diff --git a/src/game.cpp b/src/game.cpp
index f3fac0c84..5632c1805 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -534,6 +534,43 @@ void getPointedNode(Client *client, v3f player_position,
 				}
 			}
 		}
+		else if(n.d == CONTENT_RAIL)
+		{
+			v3s16 dir = unpackDir(n.dir);
+			v3f dir_f = v3f(dir.X, dir.Y, dir.Z);
+			dir_f *= BS/2 - BS/6 - BS/20;
+			v3f cpf = npf + dir_f;
+			f32 distance = (cpf - camera_position).getLength();
+
+			float d = (float)BS/16;
+			v3f vertices[4] =
+			{
+				v3f(BS/2, -BS/2+d, -BS/2),
+				v3f(-BS/2, -BS/2, BS/2),
+			};
+
+			for(s32 i=0; i<2; i++)
+			{
+				vertices[i] += npf;
+			}
+
+			core::aabbox3d<f32> box;
+
+			box = core::aabbox3d<f32>(vertices[0]);
+			box.addInternalPoint(vertices[1]);
+
+			if(distance < mindistance)
+			{
+				if(box.intersectsWithLine(shootline))
+				{
+					nodefound = true;
+					nodepos = np;
+					neighbourpos = np;
+					mindistance = distance;
+					nodehilightbox = box;
+				}
+			}
+		}
 		/*
 			Regular blocks
 		*/
diff --git a/src/guiMainMenu.cpp b/src/guiMainMenu.cpp
index ef0a013f1..cea32860b 100644
--- a/src/guiMainMenu.cpp
+++ b/src/guiMainMenu.cpp
@@ -18,10 +18,13 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 */
 
 #include "guiMainMenu.h"
+#include "guiKeyChangeMenu.h"
 #include "debug.h"
 #include "serialization.h"
 #include <string>
 
+
+
 GUIMainMenu::GUIMainMenu(gui::IGUIEnvironment* env,
 		gui::IGUIElement* parent, s32 id,
 		IMenuManager *menumgr,
@@ -34,6 +37,10 @@ GUIMainMenu::GUIMainMenu(gui::IGUIEnvironment* env,
 	m_gamecallback(gamecallback)
 {
 	assert(m_data);
+	this->env = env;
+	this->parent = parent;
+	this->id = id;
+	this->menumgr = menumgr;
 }
 
 GUIMainMenu::~GUIMainMenu()
@@ -70,35 +77,35 @@ void GUIMainMenu::regenerateGui(v2u32 screensize)
 	
 	// Client options
 	{
-		gui::IGUIElement *e = getElementFromId(258);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_NAME_INPUT);
 		if(e != NULL)
 			text_name = e->getText();
 		else
 			text_name = m_data->name;
 	}
 	{
-		gui::IGUIElement *e = getElementFromId(256);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_ADDRESS_INPUT);
 		if(e != NULL)
 			text_address = e->getText();
 		else
 			text_address = m_data->address;
 	}
 	{
-		gui::IGUIElement *e = getElementFromId(257);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_PORT_INPUT);
 		if(e != NULL)
 			text_port = e->getText();
 		else
 			text_port = m_data->port;
 	}
 	{
-		gui::IGUIElement *e = getElementFromId(263);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_FANCYTREE_CB);
 		if(e != NULL && e->getType() == gui::EGUIET_CHECK_BOX)
 			fancy_trees = ((gui::IGUICheckBox*)e)->isChecked();
 		else
 			fancy_trees = m_data->fancy_trees;
 	}
 	{
-		gui::IGUIElement *e = getElementFromId(262);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_SMOOTH_LIGHTING_CB);
 		if(e != NULL && e->getType() == gui::EGUIET_CHECK_BOX)
 			smooth_lighting = ((gui::IGUICheckBox*)e)->isChecked();
 		else
@@ -107,14 +114,14 @@ void GUIMainMenu::regenerateGui(v2u32 screensize)
 	
 	// Server options
 	{
-		gui::IGUIElement *e = getElementFromId(259);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_CREATIVE_CB);
 		if(e != NULL && e->getType() == gui::EGUIET_CHECK_BOX)
 			creative_mode = ((gui::IGUICheckBox*)e)->isChecked();
 		else
 			creative_mode = m_data->creative_mode;
 	}
 	{
-		gui::IGUIElement *e = getElementFromId(261);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_DAMAGE_CB);
 		if(e != NULL && e->getType() == gui::EGUIET_CHECK_BOX)
 			enable_damage = ((gui::IGUICheckBox*)e)->isChecked();
 		else
@@ -175,7 +182,7 @@ void GUIMainMenu::regenerateGui(v2u32 screensize)
 		core::rect<s32> rect(0, 0, 230, 30);
 		rect += topleft_client + v2s32(160, 50);
 		gui::IGUIElement *e = 
-		Environment->addEditBox(text_name.c_str(), rect, true, this, 258);
+		Environment->addEditBox(text_name.c_str(), rect, true, this, GUI_ID_NAME_INPUT);
 		if(text_name == L"")
 			Environment->setFocus(e);
 	}
@@ -198,7 +205,7 @@ void GUIMainMenu::regenerateGui(v2u32 screensize)
 		core::rect<s32> rect(0, 0, 230, 30);
 		rect += topleft_client + v2s32(160, 100);
 		gui::IGUIElement *e = 
-		Environment->addEditBox(text_address.c_str(), rect, true, this, 256);
+		Environment->addEditBox(text_address.c_str(), rect, true, this, GUI_ID_ADDRESS_INPUT);
 		if(text_name != L"")
 			Environment->setFocus(e);
 	}
@@ -206,7 +213,7 @@ void GUIMainMenu::regenerateGui(v2u32 screensize)
 		core::rect<s32> rect(0, 0, 120, 30);
 		//rect += topleft_client + v2s32(160+250+20, 125);
 		rect += topleft_client + v2s32(size_client.X-60-100, 100);
-		Environment->addEditBox(text_port.c_str(), rect, true, this, 257);
+		Environment->addEditBox(text_port.c_str(), rect, true, this, GUI_ID_PORT_INPUT);
 	}
 	{
 		core::rect<s32> rect(0, 0, 400, 20);
@@ -217,13 +224,13 @@ void GUIMainMenu::regenerateGui(v2u32 screensize)
 	{
 		core::rect<s32> rect(0, 0, 250, 30);
 		rect += topleft_client + v2s32(35, 150);
-		Environment->addCheckBox(fancy_trees, rect, this, 263,
+		Environment->addCheckBox(fancy_trees, rect, this, GUI_ID_FANCYTREE_CB,
 				L"Fancy trees");
 	}
 	{
 		core::rect<s32> rect(0, 0, 250, 30);
 		rect += topleft_client + v2s32(35, 150+30);
-		Environment->addCheckBox(smooth_lighting, rect, this, 262,
+		Environment->addCheckBox(smooth_lighting, rect, this, GUI_ID_SMOOTH_LIGHTING_CB,
 				L"Smooth Lighting");
 	}
 	// Start game button
@@ -231,9 +238,16 @@ void GUIMainMenu::regenerateGui(v2u32 screensize)
 		core::rect<s32> rect(0, 0, 180, 30);
 		//rect += topleft_client + v2s32(size_client.X/2-180/2, 225-30/2);
 		rect += topleft_client + v2s32(size_client.X-180-40, 150+25);
-		Environment->addButton(rect, this, 257, L"Start Game / Connect");
+		Environment->addButton(rect, this, GUI_ID_JOIN_GAME_BUTTON, L"Start Game / Connect");
 	}
 
+	// Key change button
+	{
+		core::rect<s32> rect(0, 0, 100, 30);
+		//rect += topleft_client + v2s32(size_client.X/2-180/2, 225-30/2);
+		rect += topleft_client + v2s32(size_client.X-180-40-100-20, 150+25);
+		Environment->addButton(rect, this, GUI_ID_CHANGE_KEYS_BUTTON, L"Change keys");
+	}
 	/*
 		Server section
 	*/
@@ -254,19 +268,19 @@ void GUIMainMenu::regenerateGui(v2u32 screensize)
 	{
 		core::rect<s32> rect(0, 0, 250, 30);
 		rect += topleft_server + v2s32(35, 30);
-		Environment->addCheckBox(creative_mode, rect, this, 259, L"Creative Mode");
+		Environment->addCheckBox(creative_mode, rect, this, GUI_ID_CREATIVE_CB, L"Creative Mode");
 	}
 	{
 		core::rect<s32> rect(0, 0, 250, 30);
 		rect += topleft_server + v2s32(35, 60);
-		Environment->addCheckBox(enable_damage, rect, this, 261, L"Enable Damage");
+		Environment->addCheckBox(enable_damage, rect, this, GUI_ID_DAMAGE_CB, L"Enable Damage");
 	}
 	// Map delete button
 	{
 		core::rect<s32> rect(0, 0, 130, 30);
 		//rect += topleft_server + v2s32(size_server.X-40-130, 100+25);
 		rect += topleft_server + v2s32(40, 100+25);
-		Environment->addButton(rect, this, 260, L"Delete world");
+		Environment->addButton(rect, this, GUI_ID_DELETE_MAP_BUTTON, L"Delete map");
 	}
 }
 
@@ -300,7 +314,7 @@ void GUIMainMenu::drawMenu()
 void GUIMainMenu::acceptInput()
 {
 	{
-		gui::IGUIElement *e = getElementFromId(258);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_NAME_INPUT);
 		if(e != NULL)
 			m_data->name = e->getText();
 	}
@@ -310,32 +324,32 @@ void GUIMainMenu::acceptInput()
 			m_data->password = e->getText();
 	}
 	{
-		gui::IGUIElement *e = getElementFromId(256);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_ADDRESS_INPUT);
 		if(e != NULL)
 			m_data->address = e->getText();
 	}
 	{
-		gui::IGUIElement *e = getElementFromId(257);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_PORT_INPUT);
 		if(e != NULL)
 			m_data->port = e->getText();
 	}
 	{
-		gui::IGUIElement *e = getElementFromId(259);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_CREATIVE_CB);
 		if(e != NULL && e->getType() == gui::EGUIET_CHECK_BOX)
 			m_data->creative_mode = ((gui::IGUICheckBox*)e)->isChecked();
 	}
 	{
-		gui::IGUIElement *e = getElementFromId(261);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_DAMAGE_CB);
 		if(e != NULL && e->getType() == gui::EGUIET_CHECK_BOX)
 			m_data->enable_damage = ((gui::IGUICheckBox*)e)->isChecked();
 	}
 	{
-		gui::IGUIElement *e = getElementFromId(262);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_SMOOTH_LIGHTING_CB);
 		if(e != NULL && e->getType() == gui::EGUIET_CHECK_BOX)
 			m_data->smooth_lighting = ((gui::IGUICheckBox*)e)->isChecked();
 	}
 	{
-		gui::IGUIElement *e = getElementFromId(263);
+		gui::IGUIElement *e = getElementFromId(GUI_ID_FANCYTREE_CB);
 		if(e != NULL && e->getType() == gui::EGUIET_CHECK_BOX)
 			m_data->fancy_trees = ((gui::IGUICheckBox*)e)->isChecked();
 	}
@@ -377,11 +391,16 @@ bool GUIMainMenu::OnEvent(const SEvent& event)
 		{
 			switch(event.GUIEvent.Caller->getID())
 			{
-			case 257: // Start game
+			case GUI_ID_JOIN_GAME_BUTTON: // Start game
 				acceptInput();
 				quitMenu();
 				return true;
-			case 260: // Delete map
+			case GUI_ID_CHANGE_KEYS_BUTTON: {
+				GUIKeyChangeMenu *kmenu = new GUIKeyChangeMenu(env, parent, -1,menumgr);
+				kmenu->drop();
+				return true;
+			}
+			case GUI_ID_DELETE_MAP_BUTTON: // Delete map
 				// Don't accept input data, just set deletion request
 				m_data->delete_map = true;
 				m_accepted = true;
@@ -393,7 +412,7 @@ bool GUIMainMenu::OnEvent(const SEvent& event)
 		{
 			switch(event.GUIEvent.Caller->getID())
 			{
-				case 256: case 257: case 258: case 264:
+				case GUI_ID_ADDRESS_INPUT: case GUI_ID_PORT_INPUT: case GUI_ID_NAME_INPUT: case 264:
 				acceptInput();
 				quitMenu();
 				return true;
diff --git a/src/guiMainMenu.h b/src/guiMainMenu.h
index edd519024..87561f797 100644
--- a/src/guiMainMenu.h
+++ b/src/guiMainMenu.h
@@ -27,6 +27,21 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 // For IGameCallback
 #include "guiPauseMenu.h"
 
+enum
+{
+	GUI_ID_QUIT_BUTTON = 101,
+	GUI_ID_NAME_INPUT,
+	GUI_ID_ADDRESS_INPUT,
+	GUI_ID_PORT_INPUT,
+	GUI_ID_FANCYTREE_CB,
+	GUI_ID_SMOOTH_LIGHTING_CB,
+	GUI_ID_DAMAGE_CB,
+	GUI_ID_CREATIVE_CB,
+	GUI_ID_JOIN_GAME_BUTTON,
+	GUI_ID_CHANGE_KEYS_BUTTON,
+	GUI_ID_DELETE_MAP_BUTTON
+};
+
 struct MainMenuData
 {
 	MainMenuData():
@@ -87,6 +102,11 @@ private:
 	MainMenuData *m_data;
 	bool m_accepted;
 	IGameCallback *m_gamecallback;
+
+	gui::IGUIEnvironment* env;
+	gui::IGUIElement* parent;
+	s32 id;
+	IMenuManager *menumgr;
 };
 
 #endif
diff --git a/src/keycode.cpp b/src/keycode.cpp
index ad3c0b401..f014914d0 100644
--- a/src/keycode.cpp
+++ b/src/keycode.cpp
@@ -171,6 +171,46 @@ irr::EKEY_CODE keyname_to_keycode(const char *name)
 	return irr::KEY_KEY_CODES_COUNT;
 }
 
+static const char *KeyNames[] =
+{ "-", "KEY_LBUTTON", "KEY_RBUTTON", "Cancel", "Middle Button", "X Button 1",
+		"X Button 2", "-", "Back", "Tab", "-", "-", "Clear", "Return", "-",
+		"-", "KEY_SHIFT", "Control", "Menu", "Pause", "Capital", "Kana", "-",
+		"Junja", "Final", "Kanji", "-", "Escape", "Convert", "Nonconvert",
+		"Accept", "Mode Change", "KEY_SPACE", "Priot", "Next", "KEY_END",
+		"KEY_HOME", "Left", "Up", "Right", "Down", "Select", "KEY_PRINT",
+		"Execute", "Snapshot", "Insert", "Delete", "Help", "KEY_KEY_0",
+		"KEY_KEY_1", "KEY_KEY_2", "KEY_KEY_3", "KEY_KEY_4", "KEY_KEY_5",
+		"KEY_KEY_6", "KEY_KEY_7", "KEY_KEY_8", "KEY_KEY_9", "-", "-", "-", "-",
+		"-", "-", "-", "KEY_KEY_A", "KEY_KEY_B", "KEY_KEY_C", "KEY_KEY_D",
+		"KEY_KEY_E", "KEY_KEY_F", "KEY_KEY_G", "KEY_KEY_H", "KEY_KEY_I",
+		"KEY_KEY_J", "KEY_KEY_K", "KEY_KEY_L", "KEY_KEY_M", "KEY_KEY_N",
+		"KEY_KEY_O", "KEY_KEY_P", "KEY_KEY_Q", "KEY_KEY_R", "KEY_KEY_S",
+		"KEY_KEY_T", "KEY_KEY_U", "KEY_KEY_V", "KEY_KEY_W", "KEY_KEY_X",
+		"KEY_KEY_Y", "KEY_KEY_Z", "Left Windows", "Right Windows", "Apps", "-",
+		"Sleep", "KEY_NUMPAD0", "KEY_NUMPAD1", "KEY_NUMPAD2", "KEY_NUMPAD3",
+		"KEY_NUMPAD4", "KEY_NUMPAD5", "KEY_NUMPAD6", "KEY_NUMPAD7",
+		"KEY_NUMPAD8", "KEY_NUMPAD9", "Numpad *", "Numpad +", "Numpad /",
+		"Numpad -", "Numpad .", "Numpad /", "KEY_F1", "KEY_F2", "KEY_F3",
+		"KEY_F4", "KEY_F5", "KEY_F6", "KEY_F7", "KEY_F8", "KEY_F9", "KEY_F10",
+		"KEY_F11", "KEY_F12", "KEY_F13", "KEY_F14", "KEY_F15", "KEY_F16",
+		"KEY_F17", "KEY_F18", "KEY_F19", "KEY_F20", "KEY_F21", "KEY_F22",
+		"KEY_F23", "KEY_F24", "-", "-", "-", "-", "-", "-", "-", "-",
+		"Num Lock", "Scroll Lock", "-", "-", "-", "-", "-", "-", "-", "-", "-",
+		"-", "-", "-", "-", "-", "KEY_LSHIFT", "KEY_RSHIFT", "Left Control",
+		"Right Control", "Left Menu", "Right Menu", "-", "-", "-", "-", "-",
+		"-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-",
+		"-", "-", "Plus", "Comma", "Minus", "Period", "-", "-", "-", "-", "-",
+		"-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-",
+		"-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-",
+		"-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-", "-",
+		"-", "-", "-", "-", "-", "-", "-", "-", "Attn", "CrSel", "ExSel",
+		"Erase OEF", "Play", "Zoom", "PA1", "OEM Clear", "-" };
+
+std::string keycode_to_keyname(s32 keycode)
+{
+	return KeyNames[keycode];
+}
+
 /*
 	Key config
 */
@@ -189,4 +229,7 @@ irr::EKEY_CODE getKeySetting(const char *settingname)
 	return c;
 }
 
-
+void clearKeyCache()
+{
+	g_key_setting_cache.clear();
+}
diff --git a/src/keycode.h b/src/keycode.h
index f19fe3442..9c62004d8 100644
--- a/src/keycode.h
+++ b/src/keycode.h
@@ -21,11 +21,14 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define KEYCODE_HEADER
 
 #include "common_irrlicht.h"
+#include <string>
 
 irr::EKEY_CODE keyname_to_keycode(const char *name);
 
 // Key configuration getter
 irr::EKEY_CODE getKeySetting(const char *settingname);
+std::string keycode_to_keyname(s32 keycode);
+void clearCache();
 
 #endif