From c45c530f7466434a647230df34df3be7c646f729 Mon Sep 17 00:00:00 2001
From: kwolekr <kwolekr@minetest.net>
Date: Thu, 18 Apr 2013 15:26:01 -0400
Subject: [PATCH 1/7] Fix Lua HUD documentation

---
 doc/lua_api.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index 44b2a0b63..1308323a4 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -1846,7 +1846,7 @@ Detached inventory callbacks
 
 HUD Definition (hud_add, hud_get)
 {
-    type = "image",
+    hud_elem_type = "image", -- see HUD element types
     ^ type of HUD element, can be either of "image", "text", "statbar", or "inventory"
     position = {x=0.5, y=0.5},
     ^ Left corner position of element

From 527deb947ca992d2b0533db02eddf38e8150960b Mon Sep 17 00:00:00 2001
From: kwolekr <kwolekr@minetest.net>
Date: Sat, 20 Apr 2013 00:21:32 -0400
Subject: [PATCH 2/7] Add direction parameter to statbars in HUD API Fix health
 bar overlap when a larger texture is used

---
 doc/lua_api.txt          | 11 +++----
 src/hud.cpp              | 68 +++++++++++++++++++++++++---------------
 src/hud.h                |  6 +++-
 src/scriptapi_object.cpp |  2 +-
 4 files changed, 54 insertions(+), 33 deletions(-)

diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index 1308323a4..aa4503879 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -407,6 +407,8 @@ The position field is used for all element types.
 To account for differing resolutions, the position coordinates are the percentage of the screen,
 ranging in value from 0 to 1.
 The name field is not yet used, but should contain a description of what the HUD element represents.
+The direction field is the direction in which something is drawn.
+0 draws from left to right, 1 draws from right to left, 2 draws from top to bottom, and 3 draws from bottom to top.
 Below are the specific uses for fields in each type; fields not listed for that type are ignored.
 
 Note: Future revisions to the HUD API may be incompatible; the HUD API is still in the experimental stages.
@@ -428,15 +430,12 @@ Note: Future revisions to the HUD API may be incompatible; the HUD API is still
     - text: The name of the texture that is used.
     - number: The number of half-textures that are displayed.
               If odd, will end with a vertically center-split texture.
+    - direction
 - inventory
     - text: The name of the inventory list to be displayed.
     - number: Number of items in the inventory to be displayed.
     - item: Position of item that is selected.
-    - direction: Direction in which the inventory list is drawn.
-                 0 draws from left to right,
-                 1 draws from right to left,
-                 2 draws from top to bottom, and
-                 3 draws from bottom to top.
+    - direction
 
 Representations of simple things
 --------------------------------
@@ -1856,6 +1855,6 @@ HUD Definition (hud_add, hud_get)
     number = 2,
     item = 3,
     ^ Selected item in inventory.  0 for no item selected.
-    dir = 0,
+    direction = 0,
     ^ Direction: 0: left-right, 1: right-left, 2: top-bottom, 3: bottom-top
 }
diff --git a/src/hud.cpp b/src/hud.cpp
index 349c55add..77cf23173 100644
--- a/src/hud.cpp
+++ b/src/hud.cpp
@@ -198,7 +198,7 @@ void Hud::drawLuaElements() {
 				font->draw(narrow_to_wide(e->text).c_str(), size + pos, color);
 				break; }
 			case HUD_ELEM_STATBAR:
-				drawStatbar(pos, e->text, e->number);
+				drawStatbar(pos, HUD_CORNER_UPPER, e->dir, e->text, e->number);
 				break;
 			case HUD_ELEM_INVENTORY: {
 				InventoryList *inv = inventory->getList(e->text);
@@ -212,38 +212,55 @@ void Hud::drawLuaElements() {
 }
 
 
-void Hud::drawStatbar(v2s32 upperleftpos, std::string texture, s32 count) {
+void Hud::drawStatbar(v2s32 pos, u16 corner, u16 drawdir, std::string texture, s32 count) {
+	const video::SColor color(255, 255, 255, 255);
+	const video::SColor colors[] = {color, color, color, color};
+	
 	video::ITexture *stat_texture =
 		gamedef->getTextureSource()->getTextureRaw(texture);
 	if (!stat_texture)
 		return;
+		
+	core::dimension2di srcd(stat_texture->getOriginalSize());
 
-	v2s32 p = upperleftpos;
+	v2s32 p = pos;
+	if (corner & HUD_CORNER_LOWER)
+		p -= srcd.Height;
+
+	v2s32 steppos;
+	switch (drawdir) {
+		case HUD_DIR_RIGHT_LEFT:
+			steppos = v2s32(-1, 0);
+			break;
+		case HUD_DIR_TOP_BOTTOM:
+			steppos = v2s32(0, 1);
+			break;
+		case HUD_DIR_BOTTOM_TOP:
+			steppos = v2s32(0, -1);
+			break;
+		default:
+			steppos = v2s32(1, 0);	
+	}
+	steppos.X *= srcd.Width;
+	steppos.Y *= srcd.Height;
+	
 	for (s32 i = 0; i < count / 2; i++)
 	{
-		core::dimension2di srcd(stat_texture->getOriginalSize());
-		const video::SColor color(255, 255, 255, 255);
-		const video::SColor colors[] = {color, color, color, color};
-		core::rect<s32> rect(0, 0, srcd.Width, srcd.Height);
-		rect += p;
-		driver->draw2DImage(stat_texture, rect,
-			core::rect<s32>(core::position2d<s32>(0, 0), srcd),
-			NULL, colors, true);
-		p += v2s32(srcd.Width, 0);
+		core::rect<s32> srcrect(0, 0, srcd.Width, srcd.Height);
+		core::rect<s32> dstrect(srcrect);
+
+		dstrect += p;
+		driver->draw2DImage(stat_texture, dstrect, srcrect, NULL, colors, true);
+		p += steppos;
 	}
 	
 	if (count % 2 == 1)
 	{
-		core::dimension2di srcd(stat_texture->getOriginalSize());
-		const video::SColor color(255, 255, 255, 255);
-		const video::SColor colors[] = {color, color, color, color};
-		core::rect<s32> rect(0, 0, srcd.Width / 2, srcd.Height);
-		rect += p;
-		srcd.Width /= 2;
-		driver->draw2DImage(stat_texture, rect,
-			core::rect<s32>(core::position2d<s32>(0, 0), srcd),
-			NULL, colors, true);
-		p += v2s32(srcd.Width * 2, 0);
+		core::rect<s32> srcrect(0, 0, srcd.Width / 2, srcd.Height);
+		core::rect<s32> dstrect(srcrect);
+
+		dstrect += p;
+		driver->draw2DImage(stat_texture, dstrect, srcrect, NULL, colors, true);
 	}
 }
 
@@ -260,14 +277,15 @@ void Hud::drawHotbar(v2s32 centerlowerpos, s32 halfheartcount, u16 playeritem) {
 	v2s32 pos = centerlowerpos - v2s32(width / 2, hotbar_imagesize + padding * 2);
 	
 	drawItem(pos, hotbar_imagesize, hotbar_itemcount, mainlist, playeritem + 1, 0);
-	drawStatbar(pos + v2s32(0, -20), "heart.png", halfheartcount);
+	drawStatbar(pos - v2s32(0, 4), HUD_CORNER_LOWER, HUD_DIR_LEFT_RIGHT,
+				"heart.png", halfheartcount);
 }
 
 
 void Hud::drawCrosshair() {
-	driver->draw2DLine(displaycenter - v2s32(10,0),
+	driver->draw2DLine(displaycenter - v2s32(10, 0),
 			displaycenter + v2s32(10, 0), crosshair_argb);
-	driver->draw2DLine(displaycenter - v2s32(0,10),
+	driver->draw2DLine(displaycenter - v2s32(0, 10),
 			displaycenter + v2s32(0, 10), crosshair_argb);
 }
 
diff --git a/src/hud.h b/src/hud.h
index 7e00a94e3..274a669c4 100644
--- a/src/hud.h
+++ b/src/hud.h
@@ -27,6 +27,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #define HUD_DIR_TOP_BOTTOM 2
 #define HUD_DIR_BOTTOM_TOP 3
 
+#define HUD_CORNER_UPPER  0
+#define HUD_CORNER_LOWER  1
+#define HUD_CORNER_CENTER 2
+
 class Player;
 
 enum HudElementType {
@@ -102,7 +106,7 @@ public:
 	void drawItem(v2s32 upperleftpos, s32 imgsize, s32 itemcount,
 		InventoryList *mainlist, u16 selectitem, u16 direction);
 	void drawLuaElements();
-	void drawStatbar(v2s32 upperleftpos, std::string texture, s32 count);
+	void drawStatbar(v2s32 pos, u16 corner, u16 drawdir, std::string texture, s32 count);
 	
 	void drawHotbar(v2s32 centerlowerpos, s32 halfheartcount, u16 playeritem);
 	void resizeHotbar();
diff --git a/src/scriptapi_object.cpp b/src/scriptapi_object.cpp
index 531bb7a58..3d56aad29 100644
--- a/src/scriptapi_object.cpp
+++ b/src/scriptapi_object.cpp
@@ -749,7 +749,7 @@ int ObjectRef::l_hud_add(lua_State *L)
 	elem->text   = getstringfield_default(L, 2, "text", "");
 	elem->number = getintfield_default(L, 2, "number", 0);
 	elem->item   = getintfield_default(L, 2, "item", 0);
-	elem->dir    = getintfield_default(L, 2, "dir", 0);
+	elem->dir    = getintfield_default(L, 2, "direction", 0);
 
 	u32 id = get_server(L)->hudAdd(player, elem);
 	if (id == (u32)-1) {

From 03868ff8e1bcdcc831b8bd845b8ea7961f7ea1c8 Mon Sep 17 00:00:00 2001
From: kwolekr <kwolekr@minetest.net>
Date: Sun, 21 Apr 2013 00:11:05 -0400
Subject: [PATCH 3/7] Class-ify caves & move to cavegen.cpp, fix cave
 regression, add caves to Mapgen V7

---
 src/CMakeLists.txt   |   1 +
 src/cavegen.cpp      | 266 ++++++++++++++++++++++++++++++++++++++++++
 src/cavegen.h        |  68 +++++++++++
 src/emerge.cpp       |   2 +-
 src/mapgen_indev.cpp |  83 ++++++++++----
 src/mapgen_indev.h   |  12 +-
 src/mapgen_v6.cpp    | 268 ++-----------------------------------------
 src/mapgen_v6.h      |  17 +--
 src/mapgen_v7.cpp    |  48 ++++++--
 src/mapgen_v7.h      |   2 +
 10 files changed, 459 insertions(+), 308 deletions(-)
 create mode 100644 src/cavegen.cpp
 create mode 100644 src/cavegen.h

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 7ddeeb02e..74c5fabb8 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -248,6 +248,7 @@ set(common_SRCS
 	mapgen_singlenode.cpp
 	treegen.cpp
 	dungeongen.cpp
+	cavegen.cpp
 	content_nodemeta.cpp
 	content_mapnode.cpp
 	collision.cpp
diff --git a/src/cavegen.cpp b/src/cavegen.cpp
new file mode 100644
index 000000000..bef50c7a7
--- /dev/null
+++ b/src/cavegen.cpp
@@ -0,0 +1,266 @@
+/*
+Minetest
+Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "util/numeric.h"
+#include "map.h"
+#include "mapgen.h"
+#include "cavegen.h"
+
+
+CaveV6::CaveV6(Mapgen *mg, PseudoRandom *ps, PseudoRandom *ps2,
+			bool is_large_cave, content_t c_water, content_t c_lava) {
+	this->vm = mg->vm;
+	this->water_level = mg->water_level;
+	this->large_cave = is_large_cave;
+	this->ps  = ps;
+	this->ps2 = ps2;
+	this->c_water_source = c_water;
+	this->c_lava_source  = c_lava;
+
+	min_tunnel_diameter = 2;
+	max_tunnel_diameter = ps->range(2, 6);
+	dswitchint = ps->range(1, 14);
+	flooded = true;
+	
+	if (large_cave) {
+		part_max_length_rs = ps->range(2,4);
+		tunnel_routepoints = ps->range(5, ps->range(15,30));
+		min_tunnel_diameter = 5;
+		max_tunnel_diameter = ps->range(7, ps->range(8,24));
+	} else {
+		part_max_length_rs = ps->range(2,9);
+		tunnel_routepoints = ps->range(10, ps->range(15,30));
+	}
+	
+	large_cave_is_flat = (ps->range(0,1) == 0);
+}
+
+
+void CaveV6::makeCave(v3s16 nmin, v3s16 nmax, int max_stone_height) {
+	node_min = nmin;
+	node_max = nmax;
+	max_stone_y = max_stone_height;
+	main_direction = v3f(0, 0, 0);
+
+	// Allowed route area size in nodes
+	ar = node_max - node_min + v3s16(1, 1, 1);
+	// Area starting point in nodes
+	of = node_min;
+
+	// Allow a bit more
+	//(this should be more than the maximum radius of the tunnel)
+	const s16 max_spread_amount = MAP_BLOCKSIZE;
+	s16 insure = 10;
+	s16 more = max_spread_amount - max_tunnel_diameter / 2 - insure;
+	ar += v3s16(1,0,1) * more * 2;
+	of -= v3s16(1,0,1) * more;
+
+	route_y_min = 0;
+	// Allow half a diameter + 7 over stone surface
+	route_y_max = -of.Y + max_stone_y + max_tunnel_diameter / 2 + 7;
+
+	// Limit maximum to area
+	route_y_max = rangelim(route_y_max, 0, ar.Y - 1);
+
+	if (large_cave) {
+		s16 min = 0;
+		if (node_min.Y < water_level && node_max.Y > water_level) {
+			min = water_level - max_tunnel_diameter/3 - of.Y;
+			route_y_max = water_level + max_tunnel_diameter/3 - of.Y;
+		}
+		route_y_min = ps->range(min, min + max_tunnel_diameter);
+		route_y_min = rangelim(route_y_min, 0, route_y_max);
+	}
+
+	s16 route_start_y_min = route_y_min;
+	s16 route_start_y_max = route_y_max;
+
+	route_start_y_min = rangelim(route_start_y_min, 0, ar.Y-1);
+	route_start_y_max = rangelim(route_start_y_max, route_start_y_min, ar.Y-1);
+
+	// Randomize starting position
+	orp = v3f(
+		(float)(ps->next() % ar.X) + 0.5,
+		(float)(ps->range(route_start_y_min, route_start_y_max)) + 0.5,
+		(float)(ps->next() % ar.Z) + 0.5
+	);
+
+	// Generate some tunnel starting from orp
+	for (u16 j = 0; j < tunnel_routepoints; j++)
+		makeTunnel(j % dswitchint == 0);
+}
+
+
+void CaveV6::makeTunnel(bool dirswitch) {
+	if (dirswitch && !large_cave) {
+		main_direction = v3f(
+			((float)(ps->next() % 20) - (float)10) / 10,
+			((float)(ps->next() % 20) - (float)10) / 30,
+			((float)(ps->next() % 20) - (float)10) / 10
+		);
+		main_direction *= (float)ps->range(0, 10) / 10;
+	}
+
+	// Randomize size
+	s16 min_d = min_tunnel_diameter;
+	s16 max_d = max_tunnel_diameter;
+	rs = ps->range(min_d, max_d);
+
+	v3s16 maxlen;
+	if (large_cave) {
+		maxlen = v3s16(
+			rs * part_max_length_rs,
+			rs * part_max_length_rs / 2,
+			rs * part_max_length_rs
+		);
+	} else {
+		maxlen = v3s16(
+			rs * part_max_length_rs,
+			ps->range(1, rs * part_max_length_rs),
+			rs * part_max_length_rs
+		);
+	}
+
+	v3f vec(
+		(float)(ps->next() % (maxlen.X * 1)) - (float)maxlen.X / 2,
+		(float)(ps->next() % (maxlen.Y * 1)) - (float)maxlen.Y / 2,
+		(float)(ps->next() % (maxlen.Z * 1)) - (float)maxlen.Z / 2
+	);
+
+	// Jump downward sometimes
+	if (!large_cave && ps->range(0, 12) == 0) {
+		vec = v3f(
+			(float)(ps->next() % (maxlen.X * 1)) - (float)maxlen.X / 2,
+			(float)(ps->next() % (maxlen.Y * 2)) - (float)maxlen.Y,
+			(float)(ps->next() % (maxlen.Z * 1)) - (float)maxlen.Z / 2
+		);
+	}
+
+	/*if(large_cave){
+		v3f p = orp + vec;
+		s16 h = find_ground_level_clever(vmanip, v2s16(p.X, p.Z), ndef);
+		route_y_min = h - rs/3;
+		route_y_max = h + rs;
+	}*/
+
+	vec += main_direction;
+
+	v3f rp = orp + vec;
+	if (rp.X < 0)
+		rp.X = 0;
+	else if (rp.X >= ar.X)
+		rp.X = ar.X - 1;
+	
+	if (rp.Y < route_y_min)
+		rp.Y = route_y_min;
+	else if (rp.Y >= route_y_max)
+		rp.Y = route_y_max - 1;
+	
+	if (rp.Z < 0)
+		rp.Z = 0;
+	else if (rp.Z >= ar.Z)
+		rp.Z = ar.Z - 1;
+	
+	vec = rp - orp;
+
+	float veclen = vec.getLength();
+	// As odd as it sounds, veclen is *exactly* 0.0 sometimes, causing a FPE
+	if (veclen == 0.0)
+		veclen = 1.0;
+		
+	// Every second section is rough
+	bool randomize_xz = (ps2->range(1, 2) == 1);
+
+	// Carve routes
+	for (float f = 0; f < 1.0; f += 1.0 / veclen)
+		carveRoute(vec, f, randomize_xz);
+	
+	orp = rp;
+}
+
+
+void CaveV6::carveRoute(v3f vec, float f, bool randomize_xz) {
+	MapNode airnode(CONTENT_AIR);
+	MapNode waternode(c_water_source);
+	MapNode lavanode(c_lava_source);
+	
+	v3s16 startp(orp.X, orp.Y, orp.Z);
+	startp += of;
+	
+	v3f fp = orp + vec * f;
+	fp.X += 0.1 * ps->range(-10, 10);
+	fp.Z += 0.1 * ps->range(-10, 10);
+	v3s16 cp(fp.X, fp.Y, fp.Z);
+
+	s16 d0 = -rs/2;
+	s16 d1 = d0 + rs;
+	if (randomize_xz) {
+		d0 += ps->range(-1, 1);
+		d1 += ps->range(-1, 1);
+	}
+	
+	for (s16 z0 = d0; z0 <= d1; z0++) {
+		s16 si = rs / 2 - MYMAX(0, abs(z0) - rs / 7 - 1);
+		for (s16 x0 = -si - ps->range(0,1); x0 <= si - 1 + ps->range(0,1); x0++) {
+			s16 maxabsxz = MYMAX(abs(x0), abs(z0));
+			s16 si2 = rs / 2 - MYMAX(0, maxabsxz - rs / 7 - 1);
+			for (s16 y0 = -si2; y0 <= si2; y0++) {
+				// Make better floors in small caves
+				//if(y0 <= -rs/2 && rs<=7)
+				//	continue;
+				
+				if (large_cave_is_flat) {
+					// Make large caves not so tall
+					if (rs > 7 && abs(y0) >= rs / 3)
+						continue;
+				}
+
+				v3s16 p(cp.X + x0, cp.Y + y0, cp.Z + z0);
+				p += of;
+
+				if (vm->m_area.contains(p) == false)
+					continue;
+
+				u32 i = vm->m_area.index(p);
+
+				if (large_cave) {
+					int full_ymin = node_min.Y - MAP_BLOCKSIZE;
+					int full_ymax = node_max.Y + MAP_BLOCKSIZE;
+					
+					if (flooded && full_ymin < water_level && full_ymax > water_level) {
+						vm->m_data[i] = (p.Y <= water_level) ? waternode : airnode;
+					} else if (flooded && full_ymax < water_level) {
+						vm->m_data[i] = (p.Y < startp.Y - 2) ? lavanode : airnode;
+					} else {
+						vm->m_data[i] = airnode;
+					}
+				} else {
+					// Don't replace air or water or lava or ignore
+					content_t c = vm->m_data[i].getContent();
+					if (c == CONTENT_IGNORE || c == CONTENT_AIR ||
+						c == c_water_source || c == c_lava_source)
+						continue;
+
+					vm->m_data[i] = airnode;
+					vm->m_flags[i] |= VMANIP_FLAG_CAVE;
+				}
+			}
+		}
+	}
+}
diff --git a/src/cavegen.h b/src/cavegen.h
new file mode 100644
index 000000000..979226b3e
--- /dev/null
+++ b/src/cavegen.h
@@ -0,0 +1,68 @@
+/*
+Minetest
+Copyright (C) 2010-2013 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#ifndef CAVEGEN_HEADER
+#define CAVEGEN_HEADER
+
+#define VMANIP_FLAG_CAVE VOXELFLAG_CHECKED1
+
+class CaveV6 {
+public:
+	ManualMapVoxelManipulator *vm;
+
+	s16 min_tunnel_diameter;
+	s16 max_tunnel_diameter;
+	u16 tunnel_routepoints;
+	int dswitchint;
+	int part_max_length_rs;
+
+	bool large_cave;
+	bool large_cave_is_flat;
+	bool flooded;
+
+	s16 max_stone_y;
+	v3s16 node_min;
+	v3s16 node_max;
+	
+	v3f orp;  //original point
+	v3s16 of;
+	v3s16 ar; // allowed route area
+	s16 rs;   // radius size
+	v3f main_direction;
+	
+	s16 route_y_min;
+	s16 route_y_max;
+	
+	PseudoRandom *ps;
+	PseudoRandom *ps2;
+	
+	content_t c_water_source;
+	content_t c_lava_source;
+	
+	int water_level;
+
+	CaveV6() {}
+	CaveV6(Mapgen *mg, PseudoRandom *ps, PseudoRandom *ps2, bool large_cave,
+			content_t c_water, content_t c_lava);
+	void makeCave(v3s16 nmin, v3s16 nmax, int max_stone_height);
+	void makeTunnel(bool dirswitch);
+	void carveRoute(v3f vec, float f, bool randomize_xz);
+};
+
+#endif
diff --git a/src/emerge.cpp b/src/emerge.cpp
index 049b3cc12..2d8b01819 100644
--- a/src/emerge.cpp
+++ b/src/emerge.cpp
@@ -50,7 +50,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 EmergeManager::EmergeManager(IGameDef *gamedef) {
 	//register built-in mapgens
 	registerMapgen("v6", new MapgenFactoryV6());
-	//registerMapgen("v7", new MapgenFactoryV7());
+	registerMapgen("v7", new MapgenFactoryV7());
 	registerMapgen("indev", new MapgenFactoryIndev());
 	registerMapgen("singlenode", new MapgenFactorySinglenode());
 
diff --git a/src/mapgen_indev.cpp b/src/mapgen_indev.cpp
index 5c842b6a5..7f0faf16f 100644
--- a/src/mapgen_indev.cpp
+++ b/src/mapgen_indev.cpp
@@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "constants.h"
 #include "map.h"
 #include "main.h"
+#include "util/numeric.h"
 #include "log.h"
 
 /////////////////// Mapgen Indev perlin noise (default values - not used, from config or defaultsettings)
@@ -154,9 +155,6 @@ void MapgenIndev::calculateNoise() {
 			z + 0.5 * noiseindev_float_islands3->npindev->spread.Z * farscale(noiseindev_float_islands3->npindev->farspread, x, z));
 		noiseindev_float_islands3->transformNoiseMapFarScale(x, y, z);
 
-	}
-	
-	if (!(flags & MG_FLAT)) {
 		noiseindev_mud->perlinMap2D(
 			x + 0.5 * noiseindev_mud->npindev->spread.X * farscale(noiseindev_mud->npindev->farspread, x, y, z),
 			z + 0.5 * noiseindev_mud->npindev->spread.Z * farscale(noiseindev_mud->npindev->farspread, x, y, z));
@@ -256,28 +254,66 @@ float MapgenIndev::getMudAmount(int index) {
 	return noiseindev_mud->result[index];
 }
 
-void MapgenIndev::defineCave(Cave & cave, PseudoRandom ps, v3s16 node_min, bool large_cave) {
-	cave.min_tunnel_diameter = 2;
-	cave.max_tunnel_diameter = ps.range(2,6);
-	cave.dswitchint = ps.range(1,14);
-	cave.flooded = large_cave && ps.range(0,4);
-	if(large_cave){
-		cave.part_max_length_rs = ps.range(2,4);
-		if (node_min.Y < -100 && !ps.range(0, farscale(0.2, node_min.X,node_min.Y,node_min.Z)*30)) { //huge
-			cave.flooded = !ps.range(0, 3);
-			cave.tunnel_routepoints = ps.range(5, 30);
-			cave.min_tunnel_diameter = 30;
-			cave.max_tunnel_diameter = ps.range(40, ps.range(80,200));
+void MapgenIndev::generateCaves(int max_stone_y) {
+	float cave_amount = NoisePerlin2D(np_cave, node_min.X, node_min.Y, seed);
+	int volume_nodes = (node_max.X - node_min.X + 1) *
+					   (node_max.Y - node_min.Y + 1) * MAP_BLOCKSIZE;
+	cave_amount = MYMAX(0.0, cave_amount);
+	u32 caves_count = cave_amount * volume_nodes / 50000;
+	u32 bruises_count = 1;
+	PseudoRandom ps(blockseed + 21343);
+	PseudoRandom ps2(blockseed + 1032);
+	
+	if (ps.range(1, 6) == 1)
+		bruises_count = ps.range(0, ps.range(0, 2));
+	
+	if (getBiome(v2s16(node_min.X, node_min.Z)) == BT_DESERT) {
+		caves_count   /= 3;
+		bruises_count /= 3;
+	}
+	
+	for (u32 i = 0; i < caves_count + bruises_count; i++) {
+		bool large_cave = (i >= caves_count);
+		CaveIndev cave(this, &ps, &ps2, node_min, large_cave,
+						c_water_source, c_lava_source);
+
+		cave.makeCave(node_min, node_max, max_stone_y);
+	}
+}
+
+CaveIndev::CaveIndev(Mapgen *mg, PseudoRandom *ps, PseudoRandom *ps2,
+				v3s16 node_min, bool is_large_cave,
+				content_t c_water, content_t c_lava) {
+	this->vm = mg->vm;
+	this->water_level = mg->water_level;
+	this->large_cave = is_large_cave;
+	this->ps  = ps;
+	this->ps2 = ps2;
+	this->c_water_source = c_water;
+	this->c_lava_source  = c_lava;
+
+	min_tunnel_diameter = 2;
+	max_tunnel_diameter = ps->range(2,6);
+	dswitchint = ps->range(1,14);
+	flooded = large_cave && ps->range(0,4);
+	if (large_cave) {
+		part_max_length_rs = ps->range(2,4);
+		float scale = farscale(0.2, node_min.X, node_min.Y, node_min.Z);
+		if (node_min.Y < -100 && !ps->range(0, scale * 30)) { //huge
+			flooded = !ps->range(0, 3);
+			tunnel_routepoints = ps->range(5, 30);
+			min_tunnel_diameter = 30;
+			max_tunnel_diameter = ps->range(40, ps->range(80, 200));
 		} else {
-			cave.tunnel_routepoints = ps.range(5, ps.range(15,30));
-			cave.min_tunnel_diameter = 5;
-			cave.max_tunnel_diameter = ps.range(7, ps.range(8,24));
+			tunnel_routepoints = ps->range(5, ps->range(15,30));
+			min_tunnel_diameter = 5;
+			max_tunnel_diameter = ps->range(7, ps->range(8,24));
 		}
 	} else {
-		cave.part_max_length_rs = ps.range(2,9);
-		cave.tunnel_routepoints = ps.range(10, ps.range(15,30));
+		part_max_length_rs = ps->range(2,9);
+		tunnel_routepoints = ps->range(10, ps->range(15,30));
 	}
-	cave.large_cave_is_flat = (ps.range(0,1) == 0);
+	large_cave_is_flat = (ps->range(0,1) == 0);
 }
 
 /*
@@ -365,7 +401,8 @@ void MapgenIndev::generateFloatIslands(int min_y) {
 	}
 }
 
-void MapgenIndev::generateSomething() {
+void MapgenIndev::generateExperimental() {
 	int float_islands = g_settings->getS16("mgindev_float_islands");
-	if(float_islands) generateFloatIslands(float_islands);
+	if (float_islands)
+		generateFloatIslands(float_islands);
 }
diff --git a/src/mapgen_indev.h b/src/mapgen_indev.h
index fdac1ba20..bd6faa21c 100644
--- a/src/mapgen_indev.h
+++ b/src/mapgen_indev.h
@@ -22,6 +22,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 
 #include "mapgen.h"
 #include "mapgen_v6.h"
+#include "cavegen.h"
 
 float farscale(float scale, float z);
 float farscale(float scale, float x, float z);
@@ -133,8 +134,9 @@ class MapgenIndev : public MapgenV6 {
 	float baseTerrainLevelFromNoise(v2s16 p);
 	float baseTerrainLevelFromMap(int index);
 	float getMudAmount(int index);
-	void defineCave(Cave & cave, PseudoRandom ps, v3s16 node_min, bool large_cave);
-	void generateSomething();
+	void generateCaves(int max_stone_y);
+	//void defineCave(Cave & cave, PseudoRandom ps, v3s16 node_min, bool large_cave);
+	void generateExperimental();
 	
 	void generateFloatIslands(int min_y);
 };
@@ -149,4 +151,10 @@ struct MapgenFactoryIndev : public MapgenFactoryV6 {
 	};
 };
 
+class CaveIndev : public CaveV6 {
+public:
+	CaveIndev(Mapgen *mg, PseudoRandom *ps, PseudoRandom *ps2, v3s16 node_min,
+			bool is_large_cave, content_t c_water, content_t c_lava);
+};
+
 #endif
diff --git a/src/mapgen_v6.cpp b/src/mapgen_v6.cpp
index 2e44d7b4a..352afd2f3 100644
--- a/src/mapgen_v6.cpp
+++ b/src/mapgen_v6.cpp
@@ -33,6 +33,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "main.h" // For g_profiler
 #include "emerge.h"
 #include "dungeongen.h"
+#include "cavegen.h"
 #include "treegen.h"
 #include "mapgen_v6.h"
 
@@ -423,7 +424,7 @@ void MapgenV6::makeChunk(BlockMakeData *data) {
 	// Generate general ground level to full area
 	stone_surface_max_y = generateGround();
 
-	generateSomething();
+	generateExperimental();
 
 	const s16 max_spread_amount = MAP_BLOCKSIZE;
 	// Limit dirt flow area by 1 because mud is flown into neighbors.
@@ -927,35 +928,10 @@ void MapgenV6::growGrass() {
 }
 
 
-void MapgenV6::defineCave(Cave &cave, PseudoRandom ps,
-						 v3s16 node_min, bool large_cave) {
-	cave.min_tunnel_diameter = 2;
-	cave.max_tunnel_diameter = ps.range(2,6);
-	cave.dswitchint = ps.range(1,14);
-	cave.flooded = true; //large_cave && ps.range(0,4);
-	if (large_cave){
-		cave.part_max_length_rs = ps.range(2,4);
-		cave.tunnel_routepoints = ps.range(5, ps.range(15,30));
-		cave.min_tunnel_diameter = 5;
-		cave.max_tunnel_diameter = ps.range(7, ps.range(8,24));
-	} else {
-		cave.part_max_length_rs = ps.range(2,9);
-		cave.tunnel_routepoints = ps.range(10, ps.range(15,30));
-	}
-	cave.large_cave_is_flat = (ps.range(0,1) == 0);
-}
-
-
 void MapgenV6::generateCaves(int max_stone_y) {
-	// 24ms @cs=8
-	//TimeTaker timer1("caves");
-	
-	/*double cave_amount = 6.0 + 6.0 * noise2d_perlin(
-		0.5+(double)node_min.X/250, 0.5+(double)node_min.Y/250,
-		data->seed+34329, 3, 0.50);*/
-	const s16 max_spread_amount = MAP_BLOCKSIZE;
 	float cave_amount = NoisePerlin2D(np_cave, node_min.X, node_min.Y, seed);
-
+	int volume_nodes = (node_max.X - node_min.X + 1) *
+					   (node_max.Y - node_min.Y + 1) * MAP_BLOCKSIZE;
 	cave_amount = MYMAX(0.0, cave_amount);
 	u32 caves_count = cave_amount * volume_nodes / 50000;
 	u32 bruises_count = 1;
@@ -970,238 +946,10 @@ void MapgenV6::generateCaves(int max_stone_y) {
 		bruises_count /= 3;
 	}
 	
-	for(u32 jj = 0; jj < caves_count + bruises_count; jj++) {
-		/*int avg_height = (int)
-			  ((base_rock_level_2d(data->seed, v2s16(node_min.X, node_min.Z)) +
-				base_rock_level_2d(data->seed, v2s16(node_max.X, node_max.Z))) / 2);
-		if ((node_max.Y + node_min.Y) / 2 > avg_height)
-			break;*/
+	for (u32 i = 0; i < caves_count + bruises_count; i++) {
+		bool large_cave = (i >= caves_count);
+		CaveV6 cave(this, &ps, &ps2, large_cave, c_water_source, c_lava_source);
 
-		bool large_cave = (jj >= caves_count);
-
-		Cave cave;
-		defineCave(cave, ps, node_min, large_cave);
-
-		v3f main_direction(0,0,0);
-
-		// Allowed route area size in nodes
-		v3s16 ar = central_area_size;
-
-		// Area starting point in nodes
-		v3s16 of = node_min;
-
-		// Allow a bit more
-		//(this should be more than the maximum radius of the tunnel)
-		s16 insure = 10;
-		s16 more = max_spread_amount - cave.max_tunnel_diameter / 2 - insure;
-		ar += v3s16(1,0,1) * more * 2;
-		of -= v3s16(1,0,1) * more;
-
-		s16 route_y_min = 0;
-		// Allow half a diameter + 7 over stone surface
-		s16 route_y_max = -of.Y + max_stone_y + cave.max_tunnel_diameter/2 + 7;
-
-		// Limit maximum to area
-		route_y_max = rangelim(route_y_max, 0, ar.Y-1);
-
-		if(large_cave)
-		{
-			s16 min = 0;
-			if(node_min.Y < water_level && node_max.Y > water_level)
-			{
-				min = water_level - cave.max_tunnel_diameter/3 - of.Y;
-				route_y_max = water_level + cave.max_tunnel_diameter/3 - of.Y;
-			}
-			route_y_min = ps.range(min, min + cave.max_tunnel_diameter);
-			route_y_min = rangelim(route_y_min, 0, route_y_max);
-		}
-
-		s16 route_start_y_min = route_y_min;
-		s16 route_start_y_max = route_y_max;
-
-		route_start_y_min = rangelim(route_start_y_min, 0, ar.Y-1);
-		route_start_y_max = rangelim(route_start_y_max, route_start_y_min, ar.Y-1);
-
-		// Randomize starting position
-		v3f orp(
-			(float)(ps.next()%ar.X)+0.5,
-			(float)(ps.range(route_start_y_min, route_start_y_max))+0.5,
-			(float)(ps.next()%ar.Z)+0.5
-		);
-
-		v3s16 startp(orp.X, orp.Y, orp.Z);
-		startp += of;
-
-		MapNode airnode(CONTENT_AIR);
-		MapNode waternode(c_water_source);
-		MapNode lavanode(c_lava_source);
-
-		/*
-			Generate some tunnel starting from orp
-		*/
-
-		for(u16 j=0; j<cave.tunnel_routepoints; j++)
-		{
-			if(j%cave.dswitchint==0 && large_cave == false)
-			{
-				main_direction = v3f(
-					((float)(ps.next()%20)-(float)10)/10,
-					((float)(ps.next()%20)-(float)10)/30,
-					((float)(ps.next()%20)-(float)10)/10
-				);
-				main_direction *= (float)ps.range(0, 10)/10;
-			}
-
-			// Randomize size
-			s16 min_d = cave.min_tunnel_diameter;
-			s16 max_d = cave.max_tunnel_diameter;
-			s16 rs = ps.range(min_d, max_d);
-
-			// Every second section is rough
-			bool randomize_xz = (ps2.range(1,2) == 1);
-
-			v3s16 maxlen;
-			if(large_cave)
-			{
-				maxlen = v3s16(
-					rs*cave.part_max_length_rs,
-					rs*cave.part_max_length_rs/2,
-					rs*cave.part_max_length_rs
-				);
-			}
-			else
-			{
-				maxlen = v3s16(
-					rs*cave.part_max_length_rs,
-					ps.range(1, rs*cave.part_max_length_rs),
-					rs*cave.part_max_length_rs
-				);
-			}
-
-			v3f vec;
-
-			vec = v3f(
-				(float)(ps.next()%(maxlen.X*1))-(float)maxlen.X/2,
-				(float)(ps.next()%(maxlen.Y*1))-(float)maxlen.Y/2,
-				(float)(ps.next()%(maxlen.Z*1))-(float)maxlen.Z/2
-			);
-
-			// Jump downward sometimes
-			if(!large_cave && ps.range(0,12) == 0)
-			{
-				vec = v3f(
-					(float)(ps.next()%(maxlen.X*1))-(float)maxlen.X/2,
-					(float)(ps.next()%(maxlen.Y*2))-(float)maxlen.Y*2/2,
-					(float)(ps.next()%(maxlen.Z*1))-(float)maxlen.Z/2
-				);
-			}
-
-			/*if(large_cave){
-				v3f p = orp + vec;
-				s16 h = find_ground_level_clever(vmanip,
-						v2s16(p.X, p.Z), ndef);
-				route_y_min = h - rs/3;
-				route_y_max = h + rs;
-			}*/
-
-			vec += main_direction;
-
-			v3f rp = orp + vec;
-			if(rp.X < 0)
-				rp.X = 0;
-			else if(rp.X >= ar.X)
-				rp.X = ar.X-1;
-			if(rp.Y < route_y_min)
-				rp.Y = route_y_min;
-			else if(rp.Y >= route_y_max)
-				rp.Y = route_y_max-1;
-			if(rp.Z < 0)
-				rp.Z = 0;
-			else if(rp.Z >= ar.Z)
-				rp.Z = ar.Z-1;
-			vec = rp - orp;
-
-			float veclen = vec.getLength();
-			// As odd as it sounds, veclen is *exactly*
-			// 0.0 sometimes, causing a FPE
-			if (veclen == 0.0)
-				veclen = 1.0;
-
-			for(float f=0; f<1.0; f+=1.0/veclen)
-			{
-				v3f fp = orp + vec * f;
-				fp.X += 0.1*ps.range(-10,10);
-				fp.Z += 0.1*ps.range(-10,10);
-				v3s16 cp(fp.X, fp.Y, fp.Z);
-
-				s16 d0 = -rs/2;
-				s16 d1 = d0 + rs;
-				if(randomize_xz){
-					d0 += ps.range(-1,1);
-					d1 += ps.range(-1,1);
-				}
-				for(s16 z0=d0; z0<=d1; z0++)
-				{
-					s16 si = rs/2 - MYMAX(0, abs(z0)-rs/7-1);
-					for(s16 x0=-si-ps.range(0,1); x0<=si-1+ps.range(0,1); x0++)
-					{
-						s16 maxabsxz = MYMAX(abs(x0), abs(z0));
-						s16 si2 = rs/2 - MYMAX(0, maxabsxz-rs/7-1);
-						for(s16 y0=-si2; y0<=si2; y0++)
-						{
-							/*// Make better floors in small caves
-							if(y0 <= -rs/2 && rs<=7)
-								continue;*/
-							if (cave.large_cave_is_flat) {
-								// Make large caves not so tall
-								if (rs > 7 && abs(y0) >= rs/3)
-									continue;
-							}
-
-							s16 z = cp.Z + z0;
-							s16 y = cp.Y + y0;
-							s16 x = cp.X + x0;
-							v3s16 p(x,y,z);
-							p += of;
-
-							if(vm->m_area.contains(p) == false)
-								continue;
-
-							u32 i = vm->m_area.index(p);
-
-							if(large_cave) {
-								if (cave.flooded && full_node_min.Y < water_level &&
-									full_node_max.Y > water_level) {
-									if (p.Y <= water_level)
-										vm->m_data[i] = waternode;
-									else
-										vm->m_data[i] = airnode;
-								} else if (cave.flooded && full_node_max.Y < water_level) {
-									if (p.Y < startp.Y - 2)
-										vm->m_data[i] = lavanode;
-									else
-										vm->m_data[i] = airnode;
-								} else {
-									vm->m_data[i] = airnode;
-								}
-							} else {
-								// Don't replace air or water or lava or ignore
-								if (vm->m_data[i].getContent() == CONTENT_IGNORE ||
-									vm->m_data[i].getContent() == CONTENT_AIR ||
-									vm->m_data[i].getContent() == c_water_source ||
-									vm->m_data[i].getContent() == c_lava_source)
-									continue;
-
-								vm->m_data[i] = airnode;
-
-								// Set tunnel flag
-								vm->m_flags[i] |= VMANIP_FLAG_CAVE;
-							}
-						}
-					}
-				}
-			}
-			orp = rp;
-		}
+		cave.makeCave(node_min, node_max, max_stone_y);
 	}
 }
diff --git a/src/mapgen_v6.h b/src/mapgen_v6.h
index d37e406cb..a0276fb59 100644
--- a/src/mapgen_v6.h
+++ b/src/mapgen_v6.h
@@ -23,7 +23,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "mapgen.h"
 
 #define AVERAGE_MUD_AMOUNT 4
-#define VMANIP_FLAG_CAVE VOXELFLAG_CHECKED1
 
 enum BiomeType
 {
@@ -43,16 +42,6 @@ extern NoiseParams nparams_v6_def_humidity;
 extern NoiseParams nparams_v6_def_trees;
 extern NoiseParams nparams_v6_def_apple_trees;
 
-struct Cave {
-	s16 min_tunnel_diameter;
-	s16 max_tunnel_diameter;
-	int dswitchint;
-	u16 tunnel_routepoints;
-	int part_max_length_rs;
-	bool large_cave_is_flat;
-	bool flooded;
-};
-
 struct MapgenV6Params : public MapgenParams {
 	float freq_desert;
 	float freq_beach;
@@ -166,10 +155,8 @@ public:
 	void addDirtGravelBlobs();
 	void growGrass();
 	void placeTreesAndJungleGrass();
-	virtual void defineCave(Cave &cave, PseudoRandom ps,
-							v3s16 node_min, bool large_cave);
-	void generateCaves(int max_stone_y);
-	virtual void generateSomething() {}; //for next mapgen
+	virtual void generateCaves(int max_stone_y);
+	virtual void generateExperimental() {}
 };
 
 struct MapgenFactoryV6 : public MapgenFactory {
diff --git a/src/mapgen_v7.cpp b/src/mapgen_v7.cpp
index 8aad37f73..d5194341d 100644
--- a/src/mapgen_v7.cpp
+++ b/src/mapgen_v7.cpp
@@ -34,6 +34,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "main.h" // For g_profiler
 #include "emerge.h"
 #include "dungeongen.h"
+#include "cavegen.h"
 #include "treegen.h"
 #include "biome.h"
 #include "mapgen_v7.h"
@@ -142,7 +143,7 @@ void MapgenV7::makeChunk(BlockMakeData *data) {
 	full_node_min = (blockpos_min - 1) * MAP_BLOCKSIZE;
 	full_node_max = (blockpos_max + 2) * MAP_BLOCKSIZE - v3s16(1, 1, 1);
 
-	//blockseed = emerge->getBlockSeed(full_node_min);
+	blockseed = emerge->getBlockSeed(full_node_min);  //////use getBlockSeed2()!
 
 	// Make some noise
 	calculateNoise();
@@ -163,14 +164,17 @@ void MapgenV7::makeChunk(BlockMakeData *data) {
 	c_dirt_with_grass = ndef->getId("mapgen_dirt_with_grass");
 	c_sand            = ndef->getId("mapgen_sand");
 	c_water_source    = ndef->getId("mapgen_water_source");
+	c_lava_source     = ndef->getId("mapgen_lava_source");
 	
 	generateTerrain();
 	carveRidges();
 	
 	//carveRivers();
-	addTopNodes();
-	growGrass();
+
 	
+	generateCaves(stone_surface_max_y);
+	addTopNodes();
+	growGrass();	
 	//v3s16 central_area_size = node_max - node_min + v3s16(1,1,1);
 
 	if (flags & MG_DUNGEONS) {
@@ -398,6 +402,8 @@ void MapgenV7::addTopNodes() {
 	
 	for (s16 z = node_min.Z; z <= node_max.Z; z++)
 	for (s16 x = node_min.X; x <= node_max.X; x++, index++) {
+		Biome *biome = bmgr->biomes[biomemap[index]];
+		
 		// First, add top nodes below the ridge
 		s16 y = ridge_heightmap[index];
 		
@@ -408,7 +414,8 @@ void MapgenV7::addTopNodes() {
 		if (y > node_max.Y) {
 			y = node_max.Y; // Let's see if we can still go downward anyway
 			u32 vi = vm->m_area.index(x, y, z);
-			if (vm->m_data[vi].getContent() != CONTENT_AIR)
+			content_t c = vm->m_data[vi].getContent();
+			if (c == biome->c_filler || c == c_stone)//c != CONTENT_AIR)
 				continue;
 		}
 		
@@ -417,12 +424,14 @@ void MapgenV7::addTopNodes() {
 		// where a ridge had been carved
 		u32 i = vm->m_area.index(x, y, z);
 		for (; y >= node_min.Y; y--) {
-			if (vm->m_data[i].getContent() != CONTENT_AIR)
+			content_t c = vm->m_data[i].getContent();
+			if (c == biome->c_filler || c == c_stone)//c != CONTENT_AIR)
+			//if (vm->m_data[i].getContent() != CONTENT_AIR)
 				break;
 			vm->m_area.add_y(em, i, -1);
 		}
 
-		Biome *biome = bmgr->biomes[biomemap[index]];
+		
 
 		if (y != node_min.Y - 1) {
 			ridge_heightmap[index] = y; //update ridgeheight
@@ -440,7 +449,9 @@ void MapgenV7::addTopNodes() {
 
 		i = vm->m_area.index(x, y, z);
 		for (; y >= node_min.Y; y--) {
-			if (vm->m_data[i].getContent() != CONTENT_AIR)
+			content_t c = vm->m_data[i].getContent();
+			if (c == biome->c_filler || c == c_stone)//c != CONTENT_AIR)
+			//if (vm->m_data[i].getContent() != CONTENT_AIR)
 				break;
 			vm->m_area.add_y(em, i, -1);
 		}
@@ -488,3 +499,26 @@ void MapgenV7::growGrass() {
 			n->setContent(c_dirt_with_grass);
 	}
 }
+
+#include "mapgen_v6.h"
+void MapgenV7::generateCaves(int max_stone_y) {
+	PseudoRandom ps(blockseed + 21343);
+	PseudoRandom ps2(blockseed + 1032);
+
+	int volume_nodes = (node_max.X - node_min.X + 1) *
+					   (node_max.Y - node_min.Y + 1) * MAP_BLOCKSIZE;
+	float cave_amount = NoisePerlin2D(&nparams_v6_def_cave,
+								node_min.X, node_min.Y, seed);
+	
+	u32 caves_count = MYMAX(0.0, cave_amount) * volume_nodes / 50000;
+	for (u32 i = 0; i < caves_count; i++) {
+		CaveV6 cave(this, &ps, &ps2, false, c_water_source, c_lava_source);
+		cave.makeCave(node_min, node_max, max_stone_y);
+	}
+	
+	u32 bruises_count = (ps.range(1, 6) == 1) ? ps.range(0, ps.range(0, 2)) : 1;
+	for (u32 i = 0; i < bruises_count; i++) {
+		CaveV6 cave(this, &ps, &ps2, true, c_water_source, c_lava_source);
+		cave.makeCave(node_min, node_max, max_stone_y);
+	}	
+}
diff --git a/src/mapgen_v7.h b/src/mapgen_v7.h
index 73fa9be03..9a2743f03 100644
--- a/src/mapgen_v7.h
+++ b/src/mapgen_v7.h
@@ -110,6 +110,8 @@ public:
 	void testBiomes();
 	void addTopNodes();
 	void growGrass();
+	
+	void generateCaves(int max_stone_y);
 };
 
 struct MapgenFactoryV7 : public MapgenFactory {

From 14ba94ad6a0e2176106af08e41d99ad81b03e9e4 Mon Sep 17 00:00:00 2001
From: kwolekr <kwolekr@minetest.net>
Date: Sun, 21 Apr 2013 12:55:46 -0400
Subject: [PATCH 4/7] Fix hud_change stat argument retrieval

---
 src/scriptapi_object.cpp | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/src/scriptapi_object.cpp b/src/scriptapi_object.cpp
index 3d56aad29..9152c9eb3 100644
--- a/src/scriptapi_object.cpp
+++ b/src/scriptapi_object.cpp
@@ -788,15 +788,17 @@ int ObjectRef::l_hud_change(lua_State *L)
 	if (player == NULL)
 		return 0;
 
-	u32 id = -1;
-	if (!lua_isnil(L, 2))
-		id = lua_tonumber(L, 2);
-	
-	HudElementStat stat = (HudElementStat)getenumfield(L, 3, "stat",
-								es_HudElementStat, HUD_STAT_NUMBER);
-	
+	u32 id = !lua_isnil(L, 2) ? lua_tonumber(L, 2) : -1;
 	if (id >= player->hud.size())
 		return 0;
+		
+	HudElementStat stat = HUD_STAT_NUMBER;
+	if (!lua_isnil(L, 3)) {
+		int statint;
+		std::string statstr = lua_tostring(L, 3);
+		stat = string_to_enum(es_HudElementStat, statint, statstr) ?
+				(HudElementStat)statint : HUD_STAT_NUMBER;
+	}
 	
 	void *value = NULL;
 	HudElement *e = player->hud[id];
@@ -832,7 +834,7 @@ int ObjectRef::l_hud_change(lua_State *L)
 			e->dir = lua_tonumber(L, 4);
 			value = &e->dir;
 	}
-	
+
 	get_server(L)->hudChange(player, id, stat, value);
 
 	lua_pushboolean(L, true);

From daddd3770663655c3723ff9a4f4aba6010b1645c Mon Sep 17 00:00:00 2001
From: kwolekr <kwolekr@minetest.net>
Date: Sun, 21 Apr 2013 15:39:34 -0400
Subject: [PATCH 5/7] Fix findSpawnPos()

---
 src/server.cpp | 38 +++++++++++++++-----------------------
 1 file changed, 15 insertions(+), 23 deletions(-)

diff --git a/src/server.cpp b/src/server.cpp
index 241826ba2..7fad623c2 100644
--- a/src/server.cpp
+++ b/src/server.cpp
@@ -4951,36 +4951,28 @@ v3f findSpawnPos(ServerMap &map)
 	{
 		s32 range = 1 + i;
 		// We're going to try to throw the player to this position
-		v2s16 nodepos2d = v2s16(-range + (myrand()%(range*2)),
-				-range + (myrand()%(range*2)));
-		//v2s16 sectorpos = getNodeSectorPos(nodepos2d);
-		// Get ground height at point (fallbacks to heightmap function)
-		s16 groundheight = map.findGroundLevel(nodepos2d);
-		// Don't go underwater
-		if(groundheight <= water_level)
-		{
-			//infostream<<"-> Underwater"<<std::endl;
-			continue;
-		}
-		// Don't go to high places
-		if(groundheight > water_level + 6)
-		{
-			//infostream<<"-> Underwater"<<std::endl;
-			continue;
-		}
+		v2s16 nodepos2d = v2s16(
+				-range + (myrand() % (range * 2)),
+				-range + (myrand() % (range * 2)));
 
-		nodepos = v3s16(nodepos2d.X, groundheight-2, nodepos2d.Y);
+		// Get ground height at point
+		s16 groundheight = map.findGroundLevel(nodepos2d);
+		if (groundheight <= water_level) // Don't go underwater
+			continue;
+		if (groundheight > water_level + 6) // Don't go to high places
+			continue;
+
+		nodepos = v3s16(nodepos2d.X, groundheight, nodepos2d.Y);
 		bool is_good = false;
 		s32 air_count = 0;
-		for(s32 i=0; i<10; i++){
+		for (s32 i = 0; i < 10; i++) {
 			v3s16 blockpos = getNodeBlockPos(nodepos);
 			map.emergeBlock(blockpos, true);
-			MapNode n = map.getNodeNoEx(nodepos);
-			if(n.getContent() == CONTENT_AIR){
+			content_t c = map.getNodeNoEx(nodepos).getContent();
+			if (c == CONTENT_AIR || c == CONTENT_IGNORE) {
 				air_count++;
-				if(air_count >= 2){
+				if (air_count >= 2){
 					is_good = true;
-					nodepos.Y -= 1;
 					break;
 				}
 			}

From 37e6d1356b812b2439adcd16043900c446250d00 Mon Sep 17 00:00:00 2001
From: kwolekr <kwolekr@minetest.net>
Date: Sun, 21 Apr 2013 15:47:13 -0400
Subject: [PATCH 6/7] mgv7: Implement getGroundLevelAtPoint(), fix layer of
 topnodes at chunk Y boundaries, remove growGrass()

---
 src/mapgen_v7.cpp | 91 +++++++++++++++++++++++------------------------
 src/mapgen_v7.h   |  1 -
 2 files changed, 45 insertions(+), 47 deletions(-)

diff --git a/src/mapgen_v7.cpp b/src/mapgen_v7.cpp
index d5194341d..efcf78672 100644
--- a/src/mapgen_v7.cpp
+++ b/src/mapgen_v7.cpp
@@ -115,7 +115,23 @@ MapgenV7::~MapgenV7() {
 
 
 int MapgenV7::getGroundLevelAtPoint(v2s16 p) {
-	return 20;
+	s16 groundlevel = baseTerrainLevelAtPoint(p.X, p.Y);
+	float heat      = NoisePerlin2D(bmgr->np_heat, p.X, p.Y, seed);
+	float humidity  = NoisePerlin2D(bmgr->np_humidity, p.X, p.Y, seed);
+	Biome *b = bmgr->getBiome(heat, humidity, groundlevel);
+	
+	s16 y = groundlevel;
+	if (y > water_level) {
+		int iters = 1024; // don't even bother iterating more than 1024 times..
+		while (iters--) {
+			float ridgenoise = NoisePerlin3D(noise_ridge->np, p.X, y, p.Y, seed);
+			if (ridgenoise * (float)(y * y) < 15.0)
+				break;
+			y--;
+		}
+	}
+
+	return y + b->top_depth;
 }
 
 
@@ -169,12 +185,8 @@ void MapgenV7::makeChunk(BlockMakeData *data) {
 	generateTerrain();
 	carveRidges();
 	
-	//carveRivers();
-
-	
 	generateCaves(stone_surface_max_y);
 	addTopNodes();
-	growGrass();	
 	//v3s16 central_area_size = node_max - node_min + v3s16(1,1,1);
 
 	if (flags & MG_DUNGEONS) {
@@ -193,7 +205,8 @@ void MapgenV7::makeChunk(BlockMakeData *data) {
 	
 	calcLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE,
 				 node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
-	//setLighting(node_min, node_max, 0xFF);
+	//setLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE,
+	//			node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE, 0xFF);
 
 	this->generating = false;
 }
@@ -256,7 +269,7 @@ float MapgenV7::baseTerrainLevelAtPoint(int x, int z) {
 }
 
 
-float MapgenV7::baseTerrainLevelFromMap(int index) {	
+float MapgenV7::baseTerrainLevelFromMap(int index) {
 	float terrain_mod  = noise_terrain_mod->result[index];
 	float hselect      = noise_height_select->result[index];
 	float terrain_base = noise_terrain_base->result[index];
@@ -399,12 +412,12 @@ void MapgenV7::addTopNodes() {
 	v3s16 em = vm->m_area.getExtent();
 	s16 ntopnodes;
 	u32 index = 0;
-	
+
 	for (s16 z = node_min.Z; z <= node_max.Z; z++)
 	for (s16 x = node_min.X; x <= node_max.X; x++, index++) {
 		Biome *biome = bmgr->biomes[biomemap[index]];
 		
-		// First, add top nodes below the ridge
+		//////////////////// First, add top nodes below the ridge
 		s16 y = ridge_heightmap[index];
 		
 		// This cutoff is good enough, but not perfect.
@@ -415,7 +428,7 @@ void MapgenV7::addTopNodes() {
 			y = node_max.Y; // Let's see if we can still go downward anyway
 			u32 vi = vm->m_area.index(x, y, z);
 			content_t c = vm->m_data[vi].getContent();
-			if (c == biome->c_filler || c == c_stone)//c != CONTENT_AIR)
+			if (ndef->get(c).walkable)
 				continue;
 		}
 		
@@ -425,15 +438,12 @@ void MapgenV7::addTopNodes() {
 		u32 i = vm->m_area.index(x, y, z);
 		for (; y >= node_min.Y; y--) {
 			content_t c = vm->m_data[i].getContent();
-			if (c == biome->c_filler || c == c_stone)//c != CONTENT_AIR)
-			//if (vm->m_data[i].getContent() != CONTENT_AIR)
+			if (ndef->get(c).walkable)
 				break;
 			vm->m_area.add_y(em, i, -1);
 		}
 
-		
-
-		if (y != node_min.Y - 1) {
+		if (y != node_min.Y - 1 && y >= water_level) {
 			ridge_heightmap[index] = y; //update ridgeheight
 			ntopnodes = biome->top_depth;
 			for (; y <= node_max.Y && ntopnodes; y++) {
@@ -441,17 +451,28 @@ void MapgenV7::addTopNodes() {
 				vm->m_data[i] = MapNode(biome->c_top);
 				vm->m_area.add_y(em, i, 1);
 			}
-			//heightmap[index] = y;
+			// If dirt, grow grass on it.
+			if (vm->m_data[i].getContent() == CONTENT_AIR) {
+				vm->m_area.add_y(em, i, -1);
+				if (vm->m_data[i].getContent() == c_dirt)
+					vm->m_data[i] = MapNode(c_dirt_with_grass);
+			}
 		}
 		
-		// Now, add top nodes on top of the ridge
+		//////////////////// Now, add top nodes on top of the ridge
 		y = heightmap[index];
+		if (y > node_max.Y) {
+			y = node_max.Y; // Let's see if we can still go downward anyway
+			u32 vi = vm->m_area.index(x, y, z);
+			content_t c = vm->m_data[vi].getContent();
+			if (ndef->get(c).walkable)
+				continue;
+		}
 
 		i = vm->m_area.index(x, y, z);
 		for (; y >= node_min.Y; y--) {
 			content_t c = vm->m_data[i].getContent();
-			if (c == biome->c_filler || c == c_stone)//c != CONTENT_AIR)
-			//if (vm->m_data[i].getContent() != CONTENT_AIR)
+			if (ndef->get(c).walkable)
 				break;
 			vm->m_area.add_y(em, i, -1);
 		}
@@ -467,39 +488,17 @@ void MapgenV7::addTopNodes() {
 				vm->m_data[i] = MapNode(biome->c_top);
 				vm->m_area.add_y(em, i, 1);
 			}
-		}
-	}
-}
-
-
-void MapgenV7::growGrass() {
-	for (s16 z = node_min.Z; z <= node_max.Z; z++)
-	for (s16 x = node_min.X; x <= node_max.X; x++) {
-		// Find the lowest surface to which enough light ends up to make
-		// grass grow.  Basically just wait until not air and not leaves.
-		s16 surface_y = 0;
-		{
-			v3s16 em = vm->m_area.getExtent();
-			u32 i = vm->m_area.index(x, node_max.Y, z);
-			s16 y;
-			// Go to ground level
-			for (y = node_max.Y; y >= node_min.Y; y--) {
-				MapNode &n = vm->m_data[i];
-				if (ndef->get(n).param_type != CPT_LIGHT ||
-					ndef->get(n).liquid_type != LIQUID_NONE)
-					break;
+			// If dirt, grow grass on it.
+			if (vm->m_data[i].getContent() == CONTENT_AIR) {
 				vm->m_area.add_y(em, i, -1);
+				if (vm->m_data[i].getContent() == c_dirt)
+					vm->m_data[i] = MapNode(c_dirt_with_grass);
 			}
-			surface_y = (y >= node_min.Y) ? y : node_min.Y;
 		}
-
-		u32 i = vm->m_area.index(x, surface_y, z);
-		MapNode *n = &vm->m_data[i];
-		if (n->getContent() == c_dirt && surface_y >= water_level - 20)
-			n->setContent(c_dirt_with_grass);
 	}
 }
 
+
 #include "mapgen_v6.h"
 void MapgenV7::generateCaves(int max_stone_y) {
 	PseudoRandom ps(blockseed + 21343);
diff --git a/src/mapgen_v7.h b/src/mapgen_v7.h
index 9a2743f03..3391098ea 100644
--- a/src/mapgen_v7.h
+++ b/src/mapgen_v7.h
@@ -109,7 +109,6 @@ public:
 	
 	void testBiomes();
 	void addTopNodes();
-	void growGrass();
 	
 	void generateCaves(int max_stone_y);
 };

From 58ded5cd27dd6e5ba740b22d8a3b0917f3d98150 Mon Sep 17 00:00:00 2001
From: eduardojsm <eduardojuniosm@gmail.com>
Date: Mon, 22 Apr 2013 17:12:57 -0300
Subject: [PATCH 7/7] Translation to Portuguese of Brazil for Minetest

---
 po/pt_BR/minetest.po | 776 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 776 insertions(+)
 create mode 100644 po/pt_BR/minetest.po

diff --git a/po/pt_BR/minetest.po b/po/pt_BR/minetest.po
new file mode 100644
index 000000000..367660378
--- /dev/null
+++ b/po/pt_BR/minetest.po
@@ -0,0 +1,776 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: minetest\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-03-30 19:56+0100\n"
+"PO-Revision-Date: 2013-04-22 17:06-0300\n"
+"Last-Translator: Eduardo Junio <contato@ejweb.com.br>\n"
+"Language-Team: LANGUAGE <contato@ejweb.com.br>\n"
+"Language: pt_BR\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+"X-Generator: Poedit 1.5.5\n"
+
+#: src/guiConfigureWorld.cpp:125
+msgid ""
+"Warning: Some mods are not configured yet.\n"
+"They will be enabled by default when you save the configuration.  "
+msgstr ""
+"Alerta: Alguns mods ainda não estão configurados.\n"
+"Eles vão ser ativos por predefinição quando salvar a configuração.  "
+
+#: src/guiConfigureWorld.cpp:144
+msgid ""
+"Warning: Some configured mods are missing.\n"
+"Their setting will be removed when you save the configuration.  "
+msgstr ""
+"Alerta: Alguns mods configurados estão em falta.\n"
+"As definições vão ser removidas quando salvar a configuração.  "
+
+#: src/guiConfigureWorld.cpp:208
+msgid "enabled"
+msgstr "ativo"
+
+#: src/guiConfigureWorld.cpp:215
+msgid "Enable All"
+msgstr "Ativar Tudo"
+
+#: src/guiConfigureWorld.cpp:222
+msgid "Disable All"
+msgstr "Desativar Tudo"
+
+#: src/guiConfigureWorld.cpp:228
+msgid "depends on:"
+msgstr "depende de:"
+
+#: src/guiConfigureWorld.cpp:240
+msgid "is required by:"
+msgstr "é necessário pelo:"
+
+#: src/guiConfigureWorld.cpp:262 src/guiCreateWorld.cpp:165
+#: src/guiKeyChangeMenu.cpp:179 src/keycode.cpp:223
+msgid "Cancel"
+msgstr "Cancelar"
+
+#: src/guiConfigureWorld.cpp:268 src/guiKeyChangeMenu.cpp:173
+msgid "Save"
+msgstr "Salvar"
+
+#: src/guiConfigureWorld.cpp:394
+msgid "Configuration saved.  "
+msgstr "Configuração salva.  "
+
+#: src/guiConfigureWorld.cpp:402
+msgid "Warning: Configuration not consistent.  "
+msgstr "Alerta: Configuração não compativel.  "
+
+#: src/guiConfirmMenu.cpp:120
+msgid "Yes"
+msgstr "Sim"
+
+#: src/guiConfirmMenu.cpp:126
+msgid "No"
+msgstr "Não"
+
+#: src/guiCreateWorld.cpp:116
+msgid "World name"
+msgstr "Nome do mundo"
+
+#: src/guiCreateWorld.cpp:135
+msgid "Game"
+msgstr "Jogo"
+
+#: src/guiCreateWorld.cpp:159
+msgid "Create"
+msgstr "Criar"
+
+#: src/guiDeathScreen.cpp:96
+msgid "You died."
+msgstr "Você morreu."
+
+#: src/guiDeathScreen.cpp:104
+msgid "Respawn"
+msgstr "Renascer"
+
+#: src/guiFormSpecMenu.cpp:582
+msgid "Left click: Move all items, Right click: Move single item"
+msgstr "Botão esq.: Mover todos os items, Botão dir.: Mover um item"
+
+#: src/guiFormSpecMenu.cpp:607 src/guiMessageMenu.cpp:109
+#: src/guiTextInputMenu.cpp:131
+msgid "Proceed"
+msgstr "Continuar"
+
+#: src/guiKeyChangeMenu.cpp:114
+msgid "Keybindings. (If this menu screws up, remove stuff from minetest.conf)"
+msgstr "Teclas. (Se este menu estragar-se, remova as linhas do minetest.conf)"
+
+#: src/guiKeyChangeMenu.cpp:151
+msgid "\"Use\" = climb down"
+msgstr "\"Use\" = ir para baixo"
+
+#: src/guiKeyChangeMenu.cpp:164
+msgid "Double tap \"jump\" to toggle fly"
+msgstr "\"saltar\" duas vezes para voar"
+
+#: src/guiKeyChangeMenu.cpp:269
+msgid "Key already in use"
+msgstr "Tecla já em uso"
+
+#: src/guiKeyChangeMenu.cpp:347
+msgid "press key"
+msgstr "pressione uma tecla"
+
+#: src/guiKeyChangeMenu.cpp:372
+msgid "Forward"
+msgstr "Avançar"
+
+#: src/guiKeyChangeMenu.cpp:373
+msgid "Backward"
+msgstr "Voltar"
+
+#: src/guiKeyChangeMenu.cpp:374 src/keycode.cpp:228
+msgid "Left"
+msgstr "Esquerda"
+
+#: src/guiKeyChangeMenu.cpp:375 src/keycode.cpp:228
+msgid "Right"
+msgstr "Direita"
+
+#: src/guiKeyChangeMenu.cpp:376
+msgid "Use"
+msgstr "Usar"
+
+#: src/guiKeyChangeMenu.cpp:377
+msgid "Jump"
+msgstr "Saltar"
+
+#: src/guiKeyChangeMenu.cpp:378
+msgid "Sneak"
+msgstr "Agachar"
+
+#: src/guiKeyChangeMenu.cpp:379
+msgid "Drop"
+msgstr "Dropar"
+
+#: src/guiKeyChangeMenu.cpp:380
+msgid "Inventory"
+msgstr "Inventário"
+
+#: src/guiKeyChangeMenu.cpp:381
+msgid "Chat"
+msgstr "Chat"
+
+#: src/guiKeyChangeMenu.cpp:382
+msgid "Command"
+msgstr "Comando"
+
+#: src/guiKeyChangeMenu.cpp:383
+msgid "Console"
+msgstr "Console"
+
+#: src/guiKeyChangeMenu.cpp:384
+msgid "Toggle fly"
+msgstr "Ativar vôo"
+
+#: src/guiKeyChangeMenu.cpp:385
+msgid "Toggle fast"
+msgstr "Ativar correr"
+
+#: src/guiKeyChangeMenu.cpp:386
+msgid "Toggle noclip"
+msgstr "Ativar noclip"
+
+#: src/guiKeyChangeMenu.cpp:387
+msgid "Range select"
+msgstr "Selecionar Distância"
+
+#: src/guiKeyChangeMenu.cpp:388
+msgid "Print stacks"
+msgstr "Imprimir stacks"
+
+#: src/guiMainMenu.cpp:92
+msgid "Cannot create world: Name contains invalid characters"
+msgstr "Não foi possível criar o mundo: Nome com caracteres inválidos"
+
+#: src/guiMainMenu.cpp:101
+msgid "Cannot create world: A world by this name already exists"
+msgstr "Não foi possivel criar o mundo: Esse nome já existe"
+
+#: src/guiMainMenu.cpp:283
+msgid "Singleplayer"
+msgstr "Um Jogador"
+
+#: src/guiMainMenu.cpp:284
+msgid "Multiplayer"
+msgstr "Multijogador"
+
+#: src/guiMainMenu.cpp:285
+msgid "Advanced"
+msgstr "Avançado"
+
+#: src/guiMainMenu.cpp:286
+msgid "Settings"
+msgstr "Configurações"
+
+#: src/guiMainMenu.cpp:287
+msgid "Credits"
+msgstr "Créditos"
+
+#: src/guiMainMenu.cpp:317
+msgid "Select World:"
+msgstr "Selecionar Mundo:"
+
+#: src/guiMainMenu.cpp:339 src/guiMainMenu.cpp:511 src/keycode.cpp:229
+msgid "Delete"
+msgstr "Excluir"
+
+#: src/guiMainMenu.cpp:346
+msgid "New"
+msgstr "Novo"
+
+#: src/guiMainMenu.cpp:354
+msgid "Configure"
+msgstr "Configurar"
+
+#: src/guiMainMenu.cpp:369 src/keycode.cpp:248
+msgid "Play"
+msgstr "Jogar"
+
+#: src/guiMainMenu.cpp:380 src/guiMainMenu.cpp:619
+msgid "Creative Mode"
+msgstr "Modo Criativo"
+
+#: src/guiMainMenu.cpp:386 src/guiMainMenu.cpp:625
+msgid "Enable Damage"
+msgstr "Ativar Dano"
+
+#: src/guiMainMenu.cpp:406 src/guiMainMenu.cpp:541
+msgid "Name/Password"
+msgstr "Nome/Senha"
+
+#: src/guiMainMenu.cpp:442 src/guiMainMenu.cpp:459 src/guiMainMenu.cpp:1184
+msgid "Favorites:"
+msgstr "Favoritos:"
+
+#: src/guiMainMenu.cpp:450 src/guiMainMenu.cpp:1194
+msgid "Public Server List:"
+msgstr "Lista de servidor públicos:"
+
+#: src/guiMainMenu.cpp:470 src/guiMainMenu.cpp:568
+msgid "Address/Port"
+msgstr "Endereço/Porta"
+
+#: src/guiMainMenu.cpp:497 src/guiMainMenu.cpp:1183
+msgid "Show Public"
+msgstr "Mostrar Públicos"
+
+#: src/guiMainMenu.cpp:501 src/guiMainMenu.cpp:1193
+msgid "Show Favorites"
+msgstr "Mostrar Favoritos"
+
+#: src/guiMainMenu.cpp:521
+msgid "Connect"
+msgstr "Conectar"
+
+#: src/guiMainMenu.cpp:591
+msgid "Leave address blank to start a local server."
+msgstr "Deixe o endereço em branco para iniciar o servidor local."
+
+#: src/guiMainMenu.cpp:600
+msgid "Start Game / Connect"
+msgstr "Iniciar Jogo / Conectar"
+
+#: src/guiMainMenu.cpp:632
+msgid "Public"
+msgstr "Público"
+
+#: src/guiMainMenu.cpp:640 src/guiMainMenu.cpp:1113
+msgid "Delete world"
+msgstr "Eliminar mundo"
+
+#: src/guiMainMenu.cpp:647
+msgid "Create world"
+msgstr "Criar mundo"
+
+#: src/guiMainMenu.cpp:681
+msgid "Fancy trees"
+msgstr "Árvores Melhoradas"
+
+#: src/guiMainMenu.cpp:687
+msgid "Smooth Lighting"
+msgstr "Iluminação Suave"
+
+#: src/guiMainMenu.cpp:693
+msgid "3D Clouds"
+msgstr "Nuvens 3D"
+
+#: src/guiMainMenu.cpp:699
+msgid "Opaque water"
+msgstr "Água Opaca"
+
+#: src/guiMainMenu.cpp:709
+msgid "Mip-Mapping"
+msgstr "Mip-Mapping"
+
+#: src/guiMainMenu.cpp:716
+msgid "Anisotropic Filtering"
+msgstr "Filtro Anisotropico"
+
+#: src/guiMainMenu.cpp:723
+msgid "Bi-Linear Filtering"
+msgstr "Filtro Bi-Linear"
+
+#: src/guiMainMenu.cpp:730
+msgid "Tri-Linear Filtering"
+msgstr "Filtro Tri-Linear"
+
+#: src/guiMainMenu.cpp:738
+msgid "Shaders"
+msgstr "Sombras"
+
+#: src/guiMainMenu.cpp:745
+msgid "Preload item visuals"
+msgstr "Precarregamento dos items"
+
+#: src/guiMainMenu.cpp:752
+msgid "Enable Particles"
+msgstr "Ativar Particulas"
+
+#: src/guiMainMenu.cpp:759
+msgid "Finite liquid"
+msgstr "Líquido finito"
+
+#: src/guiMainMenu.cpp:769
+msgid "Change keys"
+msgstr "Mudar teclas"
+
+#: src/guiMainMenu.cpp:1084
+msgid "Address required."
+msgstr "Endereço necessário."
+
+#: src/guiMainMenu.cpp:1102
+msgid "Cannot delete world: Nothing selected"
+msgstr "Não foi possível eliminar mundo: Nada seleccionado"
+
+#: src/guiMainMenu.cpp:1117
+msgid "Files to be deleted"
+msgstr "Arquivos para excluir"
+
+#: src/guiMainMenu.cpp:1133
+msgid "Cannot create world: No games found"
+msgstr "Não foi possivel criar mundo: Jogos não detectados"
+
+#: src/guiMainMenu.cpp:1149
+msgid "Cannot configure world: Nothing selected"
+msgstr "Não foi possivel configurar mundo: Nada selecionado"
+
+#: src/guiMainMenu.cpp:1256
+msgid "Failed to delete all world files"
+msgstr "Erro ao remover arquivos do mundo"
+
+#: src/guiPasswordChange.cpp:108
+msgid "Old Password"
+msgstr "Senha antiga"
+
+#: src/guiPasswordChange.cpp:125
+msgid "New Password"
+msgstr "Senha Nova"
+
+#: src/guiPasswordChange.cpp:141
+msgid "Confirm Password"
+msgstr "Confirmar Senha"
+
+#: src/guiPasswordChange.cpp:158
+msgid "Change"
+msgstr "Mudar"
+
+#: src/guiPasswordChange.cpp:167
+msgid "Passwords do not match!"
+msgstr "Senhas não correspondem!"
+
+#: src/guiPauseMenu.cpp:123
+msgid "Continue"
+msgstr "Continuar"
+
+#: src/guiPauseMenu.cpp:132
+msgid "Change Password"
+msgstr "Mudar Senha"
+
+#: src/guiPauseMenu.cpp:140
+msgid "Sound Volume"
+msgstr "Volume do som"
+
+#: src/guiPauseMenu.cpp:147
+msgid "Exit to Menu"
+msgstr "Voltar para o Menu"
+
+#: src/guiPauseMenu.cpp:154
+msgid "Exit to OS"
+msgstr "Sair do Jogo"
+
+#: src/guiPauseMenu.cpp:161
+msgid ""
+"Default Controls:\n"
+"- WASD: Walk\n"
+"- Mouse left: dig/hit\n"
+"- Mouse right: place/use\n"
+"- Mouse wheel: select item\n"
+"- 0...9: select item\n"
+"- Shift: sneak\n"
+"- R: Toggle viewing all loaded chunks\n"
+"- I: Inventory menu\n"
+"- ESC: This menu\n"
+"- T: Chat\n"
+msgstr ""
+"Controles Normais:\n"
+"- WASD: Andar\n"
+"- Botão esq.: partir/atacar\n"
+"- Botão dir.: colocar/usar\n"
+"- Scroll do Mouse: seleccionar item\n"
+"- 0...9: seleccionar item\n"
+"- Shift: agachar\n"
+"- R: Mudar visualização de todos os chunks\n"
+"- I: Inventário\n"
+"- ESC: Este menu\n"
+"- T: Chat\n"
+
+#: src/guiVolumeChange.cpp:108
+msgid "Sound Volume: "
+msgstr "Volume do som: "
+
+#: src/guiVolumeChange.cpp:121
+msgid "Exit"
+msgstr "Sair"
+
+#: src/keycode.cpp:223
+msgid "Left Button"
+msgstr "Botão Esquerdo"
+
+#: src/keycode.cpp:223
+msgid "Middle Button"
+msgstr "Scroll do Mouse"
+
+#: src/keycode.cpp:223
+msgid "Right Button"
+msgstr "Botão Direito"
+
+#: src/keycode.cpp:223
+msgid "X Button 1"
+msgstr "Botão X 1"
+
+#: src/keycode.cpp:224
+msgid "Back"
+msgstr "Voltar"
+
+#: src/keycode.cpp:224
+msgid "Clear"
+msgstr "Limpar"
+
+#: src/keycode.cpp:224
+msgid "Return"
+msgstr "Voltar"
+
+#: src/keycode.cpp:224
+msgid "Tab"
+msgstr "Tabulação"
+
+#: src/keycode.cpp:224
+msgid "X Button 2"
+msgstr "Botão X 2"
+
+#: src/keycode.cpp:225
+msgid "Capital"
+msgstr "Capital"
+
+#: src/keycode.cpp:225
+msgid "Control"
+msgstr "Controle"
+
+#: src/keycode.cpp:225
+msgid "Kana"
+msgstr "Kana"
+
+#: src/keycode.cpp:225
+msgid "Menu"
+msgstr "Menu"
+
+#: src/keycode.cpp:225
+msgid "Pause"
+msgstr "Pausa"
+
+#: src/keycode.cpp:225
+msgid "Shift"
+msgstr "Shift"
+
+#: src/keycode.cpp:226
+msgid "Convert"
+msgstr "Converter"
+
+#: src/keycode.cpp:226
+msgid "Escape"
+msgstr "ESC"
+
+#: src/keycode.cpp:226
+msgid "Final"
+msgstr "Final"
+
+#: src/keycode.cpp:226
+msgid "Junja"
+msgstr "Junja"
+
+#: src/keycode.cpp:226
+msgid "Kanji"
+msgstr "Kanji"
+
+#: src/keycode.cpp:226
+msgid "Nonconvert"
+msgstr "Nãoconverter"
+
+#: src/keycode.cpp:227
+msgid "Accept"
+msgstr "Aceitar"
+
+#: src/keycode.cpp:227
+msgid "End"
+msgstr "Fim"
+
+#: src/keycode.cpp:227
+msgid "Home"
+msgstr "Início"
+
+#: src/keycode.cpp:227
+msgid "Mode Change"
+msgstr "Alterar o modo"
+
+#: src/keycode.cpp:227
+msgid "Next"
+msgstr "Próximo"
+
+#: src/keycode.cpp:227
+msgid "Prior"
+msgstr "Prévio"
+
+#: src/keycode.cpp:227
+msgid "Space"
+msgstr "Espaço"
+
+#: src/keycode.cpp:228
+msgid "Down"
+msgstr "Baixo"
+
+#: src/keycode.cpp:228
+msgid "Execute"
+msgstr "Executar"
+
+#: src/keycode.cpp:228
+msgid "Print"
+msgstr "Print"
+
+#: src/keycode.cpp:228
+msgid "Select"
+msgstr "Selecionar"
+
+#: src/keycode.cpp:228
+msgid "Up"
+msgstr "Cima"
+
+#: src/keycode.cpp:229
+msgid "Help"
+msgstr "Ajuda"
+
+#: src/keycode.cpp:229
+msgid "Insert"
+msgstr "Insert"
+
+#: src/keycode.cpp:229
+msgid "Snapshot"
+msgstr "Screenshot"
+
+#: src/keycode.cpp:232
+msgid "Left Windows"
+msgstr "Windows Esq."
+
+#: src/keycode.cpp:233
+msgid "Apps"
+msgstr "Apps"
+
+#: src/keycode.cpp:233
+msgid "Numpad 0"
+msgstr "Numpad 0"
+
+#: src/keycode.cpp:233
+msgid "Numpad 1"
+msgstr "Numpad 1"
+
+#: src/keycode.cpp:233
+msgid "Right Windows"
+msgstr "Windows Dir."
+
+#: src/keycode.cpp:233
+msgid "Sleep"
+msgstr "Suspender"
+
+#: src/keycode.cpp:234
+msgid "Numpad 2"
+msgstr "Numpad 2"
+
+#: src/keycode.cpp:234
+msgid "Numpad 3"
+msgstr "Numpad 3"
+
+#: src/keycode.cpp:234
+msgid "Numpad 4"
+msgstr "Numpad 4"
+
+#: src/keycode.cpp:234
+msgid "Numpad 5"
+msgstr "Numpad 5"
+
+#: src/keycode.cpp:234
+msgid "Numpad 6"
+msgstr "Numpad 6"
+
+#: src/keycode.cpp:234
+msgid "Numpad 7"
+msgstr "Numpad 7"
+
+#: src/keycode.cpp:235
+msgid "Numpad *"
+msgstr "Numpad *"
+
+#: src/keycode.cpp:235
+msgid "Numpad +"
+msgstr "Numpad +"
+
+#: src/keycode.cpp:235
+msgid "Numpad -"
+msgstr "Numpad -"
+
+#: src/keycode.cpp:235
+msgid "Numpad /"
+msgstr "Numpad /"
+
+#: src/keycode.cpp:235
+msgid "Numpad 8"
+msgstr "Numpad 8"
+
+#: src/keycode.cpp:235
+msgid "Numpad 9"
+msgstr "Numpad 9"
+
+#: src/keycode.cpp:239
+msgid "Num Lock"
+msgstr "Num Lock"
+
+#: src/keycode.cpp:239
+msgid "Scroll Lock"
+msgstr "Scroll Lock"
+
+#: src/keycode.cpp:240
+msgid "Left Shift"
+msgstr "Shift Esquerdo"
+
+#: src/keycode.cpp:240
+msgid "Right Shift"
+msgstr "Shift Direito"
+
+#: src/keycode.cpp:241
+msgid "Left Control"
+msgstr "Controle Esquerdo"
+
+#: src/keycode.cpp:241
+msgid "Left Menu"
+msgstr "Menu Esquerdo"
+
+#: src/keycode.cpp:241
+msgid "Right Control"
+msgstr "Controle Direito"
+
+#: src/keycode.cpp:241
+msgid "Right Menu"
+msgstr "Menu Direito"
+
+#: src/keycode.cpp:243
+msgid "Comma"
+msgstr "Vírgula"
+
+#: src/keycode.cpp:243
+msgid "Minus"
+msgstr "Menos"
+
+#: src/keycode.cpp:243
+msgid "Period"
+msgstr "Período"
+
+#: src/keycode.cpp:243
+msgid "Plus"
+msgstr "Mais"
+
+#: src/keycode.cpp:247
+msgid "Attn"
+msgstr "Attn"
+
+#: src/keycode.cpp:247
+msgid "CrSel"
+msgstr "CrSel"
+
+#: src/keycode.cpp:248
+msgid "Erase OEF"
+msgstr "Apagar OEF"
+
+#: src/keycode.cpp:248
+msgid "ExSel"
+msgstr "ExSel"
+
+#: src/keycode.cpp:248
+msgid "OEM Clear"
+msgstr "Limpar OEM"
+
+#: src/keycode.cpp:248
+msgid "PA1"
+msgstr "PAL"
+
+#: src/keycode.cpp:248
+msgid "Zoom"
+msgstr "Zoom"
+
+#: src/main.cpp:1506
+msgid "Main Menu"
+msgstr "Menu Principal"
+
+#: src/main.cpp:1830
+msgid "Failed to initialize world"
+msgstr "Falha ao iniciar mundo"
+
+#: src/main.cpp:1842
+msgid "No world selected and no address provided. Nothing to do."
+msgstr ""
+"Nenhum mundo selecionado e nenhum endereço providenciado. Nada para fazer."
+
+#: src/main.cpp:1850
+msgid "Could not find or load game \""
+msgstr "Não foi possível encontrar ou carregar jogo \""
+
+#: src/main.cpp:1864
+msgid "Invalid gamespec."
+msgstr "gamespec inválido."
+
+#: src/main.cpp:1904
+msgid "Connection error (timed out?)"
+msgstr "Erro de conexão (excedeu o tempo?)"
+
+#: src/main.cpp:1915
+msgid ""
+"\n"
+"Check debug.txt for details."
+msgstr ""
+"\n"
+"Verifique debug.txt para mais detalhes."