Add 'fly' and 'fast' privileges and the underlying privileges-to-client system

builtin/builtin.lua

@@ -870,8 +870,24 @@ end
 --
 
 minetest.registered_privileges = {}
-function minetest.register_privilege(name, description)
+
-	minetest.registered_privileges[name] = description
+function minetest.register_privilege(name, param)
+	local function fill_defaults(def)
+		if def.give_to_singleplayer == nil then
+			def.give_to_singleplayer = true
+		end
+		if def.description == nil then
+			def.description = "(no description)"
+		end
+	end
+	local def = {}
+	if type(param) == "table" then
+		def = param
+	else
+		def = {description = param}
+	end
+	fill_defaults(def)
+	minetest.registered_privileges[name] = def
 end
 
 minetest.register_privilege("interact", "Can interact with things and modify the world")
@@ -884,6 +900,14 @@ minetest.register_privilege("shout", "Can speak in chat")
 minetest.register_privilege("ban", "Can ban and unban players")
 minetest.register_privilege("give", "Can use /give and /giveme")
 minetest.register_privilege("password", "Can use /setpassword and /clearpassword")
+minetest.register_privilege("fly", {
+	description = "Can fly using the free_move mode",
+	give_to_singleplayer = false,
+})
+minetest.register_privilege("fast", {
+	description = "Can walk fast using the fast_move mode",
+	give_to_singleplayer = false,
+})
 
 --
 -- Chat commands
@@ -929,8 +953,8 @@ minetest.register_chatcommand("help", {
 			end
 		elseif param == "privs" then
 			minetest.chat_send_player(name, "Available privileges:")
-			for priv, desc in pairs(minetest.registered_privileges) do
+			for priv, def in pairs(minetest.registered_privileges) do
-				minetest.chat_send_player(name, priv..": "..desc)
+				minetest.chat_send_player(name, priv..": "..def.description)
 			end
 		else
 			local cmd = param
@@ -1004,7 +1028,7 @@ minetest.register_chatcommand("revoke", {
 		local revokeprivs = minetest.string_to_privs(revokeprivstr)
 		local privs = minetest.get_player_privs(revokename)
 		for priv, _ in pairs(revokeprivs) do
-			table.remove(privs, priv)
+			privs[priv] = nil
 		end
 		minetest.set_player_privs(revokename, privs)
 	end,
@@ -1200,6 +1224,7 @@ local function read_auth_file()
 	end
 	io.close(file)
 	minetest.auth_table = newtable
+	minetest.notify_authentication_modified()
 end
 
 local function save_auth_file()
@@ -1228,24 +1253,41 @@ read_auth_file()
 minetest.builtin_auth_handler = {
 	get_auth = function(name)
 		assert(type(name) == "string")
+		-- Figure out what password to use for a new player (singleplayer
+		-- always has an empty password, otherwise use default, which is
+		-- usually empty too)
+		local new_password_hash = ""
+		if not minetest.is_singleplayer() then
+			new_password_hash = minetest.get_password_hash(name, minetest.setting_get("default_password"))
+		end
+		-- Add player to authentication table if not there already
 		if not minetest.auth_table[name] then
 			minetest.builtin_auth_handler.create_auth(name, minetest.get_password_hash(name, minetest.setting_get("default_password")))
 		end
+		-- Figure out what privileges the player should have.
+		-- Take a copy of the privilege table
+		local privileges = {}
+		for priv, _ in pairs(minetest.auth_table[name].privileges) do
+			privileges[priv] = true
+		end
+		-- If singleplayer, give all privileges except those marked as give_to_singleplayer = false
 		if minetest.is_singleplayer() then
-			return {
+			for priv, def in pairs(minetest.registered_privileges) do
-				password = "",
+				if def.give_to_singleplayer then
-				privileges = minetest.registered_privileges
+					privileges[priv] = true
-			}
+				end
-		else
+			end
-			if minetest.auth_table[name] and name == minetest.setting_get("name") then
+		-- For the admin, give everything
+		elseif name == minetest.setting_get("name") then
+			for priv, def in pairs(minetest.registered_privileges) do
+				privileges[priv] = true
+			end
+		end
+		-- All done
 		return {
 			password = minetest.auth_table[name].password,
-					privileges = minetest.registered_privileges
+			privileges = privileges,
 		}
-			else
-				return minetest.auth_table[name]
-			end
-		end
 	end,
 	create_auth = function(name, password)
 		assert(type(name) == "string")
@@ -1275,6 +1317,7 @@ minetest.builtin_auth_handler = {
 			minetest.builtin_auth_handler.create_auth(name, minetest.get_password_hash(name, minetest.setting_get("default_password")))
 		end
 		minetest.auth_table[name].privileges = privileges
+		minetest.notify_authentication_modified(name)
 		save_auth_file()
 	end
 }

doc/lua_api.txt

@@ -506,7 +506,12 @@ minetest.register_on_respawnplayer(func(ObjectRef))
 ^ currently called _before_ repositioning of player occurs
 minetest.register_on_chat_message(func(name, message))
 minetest.register_chatcommand(cmd, chatcommand definition)
-minetest.register_privilege(name, description)
+minetest.register_privilege(name, definition)
+^ definition: "description text"
+^ definition: {
+      description = "description text",
+      give_to_singleplayer = boolean, -- default: true
+  }
 minetest.register_authentication_handler(handler)
 ^ See minetest.builtin_auth_handler in builtin.lua for reference
 
@@ -516,13 +521,20 @@ minetest.setting_getbool(name) -> boolean value or nil
 minetest.add_to_creative_inventory(itemstring)
 
 Authentication:
+minetest.notify_authentication_modified(name)
+^ Should be called by the authentication handler if privileges change.
+^ To report everybody, set name=nil.
 minetest.get_password_hash(name, raw_password)
-minetest.set_player_password(name, password_hash)
+^ Convert a name-password pair to a password hash that minetest can use
 minetest.string_to_privs(str) -> {priv1=true,...}
 minetest.privs_to_string(privs) -> "priv1,priv2,..."
+^ Convert between two privilege representations
+minetest.set_player_password(name, password_hash)
 minetest.set_player_privs(name, {priv1=true,...})
 minetest.get_player_privs(name) -> {priv1=true,...}
+^ These call the authentication handler
 minetest.check_player_privs(name, {priv1=true,...}) -> bool, missing_privs
+^ A quickhand for checking privileges
 
 Chat:
 minetest.chat_send_all(text)

src/CMakeLists.txt

@@ -220,6 +220,7 @@ endif()
 set(minetest_SRCS
 	${common_SRCS}
 	${sound_SRCS}
+	localplayer.cpp
 	sky.cpp
 	clientmap.cpp
 	content_cso.cpp

src/camera.cpp

@@ -351,7 +351,8 @@ void Camera::update(LocalPlayer* player, f32 frametime, v2u32 screensize,
 	if ((hypot(speed.X, speed.Z) > BS) &&
 		(player->touching_ground) &&
 		(g_settings->getBool("view_bobbing") == true) &&
-		(g_settings->getBool("free_move") == false))
+		(g_settings->getBool("free_move") == false ||
+				!m_gamedef->checkLocalPrivilege("fly")))
 	{
 		// Start animation
 		m_view_bobbing_state = 1;

src/client.cpp

@@ -1674,6 +1674,21 @@ void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 			m_sound->stopSound(client_id);
 		}
 	}
+	else if(command == TOCLIENT_PRIVILEGES)
+	{
+		std::string datastring((char*)&data[2], datasize-2);
+		std::istringstream is(datastring, std::ios_base::binary);
+		
+		m_privileges.clear();
+		infostream<<"Client: Privileges updated: ";
+		u16 num_privileges = readU16(is);
+		for(u16 i=0; i<num_privileges; i++){
+			std::string priv = deSerializeString(is);
+			m_privileges.insert(priv);
+			infostream<<priv<<" ";
+		}
+		infostream<<std::endl;
+	}
 	else
 	{
 		infostream<<"Client: Ignoring unknown command "

src/client.h

@@ -20,8 +20,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #ifndef CLIENT_HEADER
 #define CLIENT_HEADER
 
-#ifndef SERVER
-
 #include "connection.h"
 #include "environment.h"
 #include "common_irrlicht.h"
@@ -35,6 +33,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "inventorymanager.h"
 #include "filesys.h"
 #include "filecache.h"
+#include "localplayer.h"
 
 struct MeshMakeData;
 class MapBlockMesh;
@@ -262,14 +261,8 @@ public:
 
 	u16 getHP();
 
-	float getAvgRtt()
+	bool checkPrivilege(const std::string &priv)
-	{
+	{ return (m_privileges.count(priv) != 0); }
-		try{
-			return m_con.GetPeerAvgRTT(PEER_ID_SERVER);
-		} catch(con::PeerNotFoundException){
-			return 1337;
-		}
-	}
 
 	bool getChatMessage(std::wstring &message);
 	void typeChatMessage(const std::wstring& message);
@@ -312,6 +305,8 @@ public:
 	virtual u16 allocateUnknownNodeId(const std::string &name);
 	virtual ISoundManager* getSoundManager();
 	virtual MtEventManager* getEventManager();
+	virtual bool checkLocalPrivilege(const std::string &priv)
+	{ return checkPrivilege(priv); }
 
 private:
 	
@@ -392,9 +387,10 @@ private:
 	std::map<int, s32> m_sounds_client_to_server;
 	// And relations to objects
 	std::map<int, u16> m_sounds_to_objects;
-};
 
-#endif // !SERVER
+	// Privileges
+	std::set<std::string> m_privileges;
+};
 
 #endif // !CLIENT_HEADER
 

src/clientserver.h

@@ -50,9 +50,13 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 	PROTOCOL_VERSION 9:
 		ContentFeatures and NodeDefManager use a different serialization
 		    format; better for future version cross-compatibility
+		Many things
+	PROTOCOL_VERSION 10:
+		TOCLIENT_PRIVILEGES
+		Version raised to force 'fly' and 'fast' privileges into effect.
 */
 
-#define PROTOCOL_VERSION 9
+#define PROTOCOL_VERSION 10
 
 #define PROTOCOL_ID 0x4f457403
 
@@ -291,6 +295,15 @@ enum ToClientCommand
 		u16 command
 		s32 sound_id
 	*/
+
+	TOCLIENT_PRIVILEGES = 0x41,
+	/*
+		u16 command
+		u16 number of privileges
+		for each privilege
+			u16 len
+			u8[len] privilege
+	*/
 };
 
 enum ToServerCommand

src/content_cao.cpp

@@ -36,6 +36,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "content_cso.h"
 #include "sound.h"
 #include "nodedef.h"
+#include "localplayer.h"
 class Settings;
 struct ToolCapabilities;
 

src/environment.cpp

@@ -39,6 +39,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "gamedef.h"
 #ifndef SERVER
 #include "clientmap.h"
+#include "localplayer.h"
 #endif
 #include "daynightratio.h"
 
@@ -1888,7 +1889,8 @@ void ClientEnvironment::step(float dtime)
 	stepTimeOfDay(dtime);
 
 	// Get some settings
-	bool free_move = g_settings->getBool("free_move");
+	bool fly_allowed = m_gamedef->checkLocalPrivilege("fly");
+	bool free_move = fly_allowed && g_settings->getBool("free_move");
 
 	// Get local player
 	LocalPlayer *lplayer = getLocalPlayer();

src/game.cpp

@@ -1636,6 +1636,8 @@ void the_game(
 				g_settings->set("free_move","true");
 				statustext = L"free_move enabled";
 				statustext_time = 0;
+				if(!client.checkPrivilege("fly"))
+					statustext += L" (note: no 'fly' privilege)";
 			}
 		}
 		else if(input->wasKeyDown(getKeySetting("keymap_fastmove")))
@@ -1651,6 +1653,8 @@ void the_game(
 				g_settings->set("fast_move","true");
 				statustext = L"fast_move enabled";
 				statustext_time = 0;
+				if(!client.checkPrivilege("fast"))
+					statustext += L" (note: no 'fast' privilege)";
 			}
 		}
 		else if(input->wasKeyDown(getKeySetting("keymap_screenshot")))

src/gamedef.h

@@ -51,9 +51,14 @@ public:
 	// Used for keeping track of names/ids of unknown nodes
 	virtual u16 allocateUnknownNodeId(const std::string &name)=0;
 	
+	// Only usable on the client
 	virtual ISoundManager* getSoundManager()=0;
 	virtual MtEventManager* getEventManager()=0;
 	
+	// Used on the client
+	virtual bool checkLocalPrivilege(const std::string &priv)
+	{ return false; }
+	
 	// Shorthands
 	IItemDefManager* idef(){return getItemDefManager();}
 	INodeDefManager* ndef(){return getNodeDefManager();}

src/localplayer.cpp

@@ -0,0 +1,638 @@
+/*
+Minetest-c55
+Copyright (C) 2010-2012 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 General Public License as published by
+the Free Software Foundation; either version 2 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 General Public License for more details.
+
+You should have received a copy of the GNU 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 "localplayer.h"
+#include "main.h" // For g_settings
+#include "event.h"
+#include "collision.h"
+#include "gamedef.h"
+#include "nodedef.h"
+#include "settings.h"
+#include "map.h"
+
+/*
+	LocalPlayer
+*/
+
+LocalPlayer::LocalPlayer(IGameDef *gamedef):
+	Player(gamedef),
+	m_sneak_node(32767,32767,32767),
+	m_sneak_node_exists(false)
+{
+	// Initialize hp to 0, so that no hearts will be shown if server
+	// doesn't support health points
+	hp = 0;
+}
+
+LocalPlayer::~LocalPlayer()
+{
+}
+
+void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d,
+		core::list<CollisionInfo> *collision_info)
+{
+	INodeDefManager *nodemgr = m_gamedef->ndef();
+
+	v3f position = getPosition();
+	v3f oldpos = position;
+	v3s16 oldpos_i = floatToInt(oldpos, BS);
+
+	v3f old_speed = m_speed;
+
+	/*std::cout<<"oldpos_i=("<<oldpos_i.X<<","<<oldpos_i.Y<<","
+			<<oldpos_i.Z<<")"<<std::endl;*/
+
+	/*
+		Calculate new position
+	*/
+	position += m_speed * dtime;
+	
+	// Skip collision detection if a special movement mode is used
+	bool fly_allowed = m_gamedef->checkLocalPrivilege("fly");
+	bool free_move = fly_allowed && g_settings->getBool("free_move");
+	if(free_move)
+	{
+		setPosition(position);
+		return;
+	}
+
+	/*
+		Collision detection
+	*/
+	
+	// Player position in nodes
+	v3s16 pos_i = floatToInt(position, BS);
+	
+	/*
+		Check if player is in water (the oscillating value)
+	*/
+	try{
+		// If in water, the threshold of coming out is at higher y
+		if(in_water)
+		{
+			v3s16 pp = floatToInt(position + v3f(0,BS*0.1,0), BS);
+			in_water = nodemgr->get(map.getNode(pp).getContent()).isLiquid();
+		}
+		// If not in water, the threshold of going in is at lower y
+		else
+		{
+			v3s16 pp = floatToInt(position + v3f(0,BS*0.5,0), BS);
+			in_water = nodemgr->get(map.getNode(pp).getContent()).isLiquid();
+		}
+	}
+	catch(InvalidPositionException &e)
+	{
+		in_water = false;
+	}
+
+	/*
+		Check if player is in water (the stable value)
+	*/
+	try{
+		v3s16 pp = floatToInt(position + v3f(0,0,0), BS);
+		in_water_stable = nodemgr->get(map.getNode(pp).getContent()).isLiquid();
+	}
+	catch(InvalidPositionException &e)
+	{
+		in_water_stable = false;
+	}
+
+	/*
+	        Check if player is climbing
+	*/
+
+	try {
+		v3s16 pp = floatToInt(position + v3f(0,0.5*BS,0), BS);
+		v3s16 pp2 = floatToInt(position + v3f(0,-0.2*BS,0), BS);
+		is_climbing = ((nodemgr->get(map.getNode(pp).getContent()).climbable ||
+		nodemgr->get(map.getNode(pp2).getContent()).climbable) && !free_move);
+	}
+	catch(InvalidPositionException &e)
+	{
+		is_climbing = false;
+	}
+
+	/*
+		Collision uncertainty radius
+		Make it a bit larger than the maximum distance of movement
+	*/
+	//f32 d = pos_max_d * 1.1;
+	// A fairly large value in here makes moving smoother
+	f32 d = 0.15*BS;
+
+	// This should always apply, otherwise there are glitches
+	assert(d > pos_max_d);
+
+	float player_radius = BS*0.30;
+	float player_height = BS*1.55;
+	
+	// Maximum distance over border for sneaking
+	f32 sneak_max = BS*0.4;
+
+	/*
+		If sneaking, player has larger collision radius to keep from
+		falling
+	*/
+	/*if(control.sneak)
+		player_radius = sneak_max + d*1.1;*/
+	
+	/*
+		If sneaking, keep in range from the last walked node and don't
+		fall off from it
+	*/
+	if(control.sneak && m_sneak_node_exists)
+	{
+		f32 maxd = 0.5*BS + sneak_max;
+		v3f lwn_f = intToFloat(m_sneak_node, BS);
+		position.X = rangelim(position.X, lwn_f.X-maxd, lwn_f.X+maxd);
+		position.Z = rangelim(position.Z, lwn_f.Z-maxd, lwn_f.Z+maxd);
+		
+		f32 min_y = lwn_f.Y + 0.5*BS;
+		if(position.Y < min_y)
+		{
+			position.Y = min_y;
+
+			//v3f old_speed = m_speed;
+
+			if(m_speed.Y < 0)
+				m_speed.Y = 0;
+
+			/*if(collision_info)
+			{
+				// Report fall collision
+				if(old_speed.Y < m_speed.Y - 0.1)
+				{
+					CollisionInfo info;
+					info.t = COLLISION_FALL;
+					info.speed = m_speed.Y - old_speed.Y;
+					collision_info->push_back(info);
+				}
+			}*/
+		}
+	}
+
+	/*
+		Calculate player collision box (new and old)
+	*/
+	core::aabbox3d<f32> playerbox(
+		position.X - player_radius,
+		position.Y - 0.0,
+		position.Z - player_radius,
+		position.X + player_radius,
+		position.Y + player_height,
+		position.Z + player_radius
+	);
+	core::aabbox3d<f32> playerbox_old(
+		oldpos.X - player_radius,
+		oldpos.Y - 0.0,
+		oldpos.Z - player_radius,
+		oldpos.X + player_radius,
+		oldpos.Y + player_height,
+		oldpos.Z + player_radius
+	);
+
+	/*
+		If the player's feet touch the topside of any node, this is
+		set to true.
+
+		Player is allowed to jump when this is true.
+	*/
+	bool touching_ground_was = touching_ground;
+	touching_ground = false;
+
+	/*std::cout<<"Checking collisions for ("
+			<<oldpos_i.X<<","<<oldpos_i.Y<<","<<oldpos_i.Z
+			<<") -> ("
+			<<pos_i.X<<","<<pos_i.Y<<","<<pos_i.Z
+			<<"):"<<std::endl;*/
+	
+	bool standing_on_unloaded = false;
+	
+	/*
+		Go through every node around the player
+	*/
+	for(s16 y = oldpos_i.Y - 1; y <= oldpos_i.Y + 2; y++)
+	for(s16 z = oldpos_i.Z - 1; z <= oldpos_i.Z + 1; z++)
+	for(s16 x = oldpos_i.X - 1; x <= oldpos_i.X + 1; x++)
+	{
+		bool is_unloaded = false;
+		try{
+			// Player collides into walkable nodes
+			if(nodemgr->get(map.getNode(v3s16(x,y,z))).walkable == false)
+				continue;
+		}
+		catch(InvalidPositionException &e)
+		{
+			is_unloaded = true;
+			// Doing nothing here will block the player from
+			// walking over map borders
+		}
+
+		core::aabbox3d<f32> nodebox = getNodeBox(v3s16(x,y,z), BS);
+		
+		/*
+			See if the player is touching ground.
+
+			Player touches ground if player's minimum Y is near node's
+			maximum Y and player's X-Z-area overlaps with the node's
+			X-Z-area.
+
+			Use 0.15*BS so that it is easier to get on a node.
+		*/
+		if(
+				//fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < d
+				fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < 0.15*BS
+				&& nodebox.MaxEdge.X-d > playerbox.MinEdge.X
+				&& nodebox.MinEdge.X+d < playerbox.MaxEdge.X
+				&& nodebox.MaxEdge.Z-d > playerbox.MinEdge.Z
+				&& nodebox.MinEdge.Z+d < playerbox.MaxEdge.Z
+		){
+			touching_ground = true;
+			if(is_unloaded)
+				standing_on_unloaded = true;
+		}
+		
+		// If player doesn't intersect with node, ignore node.
+		if(playerbox.intersectsWithBox(nodebox) == false)
+			continue;
+		
+		/*
+			Go through every axis
+		*/
+		v3f dirs[3] = {
+			v3f(0,0,1), // back-front
+			v3f(0,1,0), // top-bottom
+			v3f(1,0,0), // right-left
+		};
+		for(u16 i=0; i<3; i++)
+		{
+			/*
+				Calculate values along the axis
+			*/
+			f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[i]);
+			f32 nodemin = nodebox.MinEdge.dotProduct(dirs[i]);
+			f32 playermax = playerbox.MaxEdge.dotProduct(dirs[i]);
+			f32 playermin = playerbox.MinEdge.dotProduct(dirs[i]);
+			f32 playermax_old = playerbox_old.MaxEdge.dotProduct(dirs[i]);
+			f32 playermin_old = playerbox_old.MinEdge.dotProduct(dirs[i]);
+			
+			/*
+				Check collision for the axis.
+				Collision happens when player is going through a surface.
+			*/
+			/*f32 neg_d = d;
+			f32 pos_d = d;
+			// Make it easier to get on top of a node
+			if(i == 1)
+				neg_d = 0.15*BS;
+			bool negative_axis_collides =
+				(nodemax > playermin && nodemax <= playermin_old + neg_d
+					&& m_speed.dotProduct(dirs[i]) < 0);
+			bool positive_axis_collides =
+				(nodemin < playermax && nodemin >= playermax_old - pos_d
+					&& m_speed.dotProduct(dirs[i]) > 0);*/
+			bool negative_axis_collides =
+				(nodemax > playermin && nodemax <= playermin_old + d
+					&& m_speed.dotProduct(dirs[i]) < 0);
+			bool positive_axis_collides =
+				(nodemin < playermax && nodemin >= playermax_old - d
+					&& m_speed.dotProduct(dirs[i]) > 0);
+			bool main_axis_collides =
+					negative_axis_collides || positive_axis_collides;
+			
+			/*
+				Check overlap of player and node in other axes
+			*/
+			bool other_axes_overlap = true;
+			for(u16 j=0; j<3; j++)
+			{
+				if(j == i)
+					continue;
+				f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[j]);
+				f32 nodemin = nodebox.MinEdge.dotProduct(dirs[j]);
+				f32 playermax = playerbox.MaxEdge.dotProduct(dirs[j]);
+				f32 playermin = playerbox.MinEdge.dotProduct(dirs[j]);
+				if(!(nodemax - d > playermin && nodemin + d < playermax))
+				{
+					other_axes_overlap = false;
+					break;
+				}
+			}
+			
+			/*
+				If this is a collision, revert the position in the main
+				direction.
+			*/
+			if(other_axes_overlap && main_axis_collides)
+			{
+				//v3f old_speed = m_speed;
+
+				m_speed -= m_speed.dotProduct(dirs[i]) * dirs[i];
+				position -= position.dotProduct(dirs[i]) * dirs[i];
+				position += oldpos.dotProduct(dirs[i]) * dirs[i];
+				
+				/*if(collision_info)
+				{
+					// Report fall collision
+					if(old_speed.Y < m_speed.Y - 0.1)
+					{
+						CollisionInfo info;
+						info.t = COLLISION_FALL;
+						info.speed = m_speed.Y - old_speed.Y;
+						collision_info->push_back(info);
+					}
+				}*/
+			}
+		
+		}
+	} // xyz
+
+	/*
+		Check the nodes under the player to see from which node the
+		player is sneaking from, if any.
+	*/
+	{
+		v3s16 pos_i_bottom = floatToInt(position - v3f(0,BS/2,0), BS);
+		v2f player_p2df(position.X, position.Z);
+		f32 min_distance_f = 100000.0*BS;
+		// If already seeking from some node, compare to it.
+		/*if(m_sneak_node_exists)
+		{
+			v3f sneaknode_pf = intToFloat(m_sneak_node, BS);
+			v2f sneaknode_p2df(sneaknode_pf.X, sneaknode_pf.Z);
+			f32 d_horiz_f = player_p2df.getDistanceFrom(sneaknode_p2df);
+			f32 d_vert_f = fabs(sneaknode_pf.Y + BS*0.5 - position.Y);
+			// Ignore if player is not on the same level (likely dropped)
+			if(d_vert_f < 0.15*BS)
+				min_distance_f = d_horiz_f;
+		}*/
+		v3s16 new_sneak_node = m_sneak_node;
+		for(s16 x=-1; x<=1; x++)
+		for(s16 z=-1; z<=1; z++)
+		{
+			v3s16 p = pos_i_bottom + v3s16(x,0,z);
+			v3f pf = intToFloat(p, BS);
+			v2f node_p2df(pf.X, pf.Z);
+			f32 distance_f = player_p2df.getDistanceFrom(node_p2df);
+			f32 max_axis_distance_f = MYMAX(
+					fabs(player_p2df.X-node_p2df.X),
+					fabs(player_p2df.Y-node_p2df.Y));
+					
+			if(distance_f > min_distance_f ||
+					max_axis_distance_f > 0.5*BS + sneak_max + 0.1*BS)
+				continue;
+
+			try{
+				// The node to be sneaked on has to be walkable
+				if(nodemgr->get(map.getNode(p)).walkable == false)
+					continue;
+				// And the node above it has to be nonwalkable
+				if(nodemgr->get(map.getNode(p+v3s16(0,1,0))).walkable == true)
+					continue;
+			}
+			catch(InvalidPositionException &e)
+			{
+				continue;
+			}
+
+			min_distance_f = distance_f;
+			new_sneak_node = p;
+		}
+		
+		bool sneak_node_found = (min_distance_f < 100000.0*BS*0.9);
+		
+		if(control.sneak && m_sneak_node_exists)
+		{
+			if(sneak_node_found)
+				m_sneak_node = new_sneak_node;
+		}
+		else
+		{
+			m_sneak_node = new_sneak_node;
+			m_sneak_node_exists = sneak_node_found;
+		}
+
+		/*
+			If sneaking, the player's collision box can be in air, so
+			this has to be set explicitly
+		*/
+		if(sneak_node_found && control.sneak)
+			touching_ground = true;
+	}
+	
+	/*
+		Set new position
+	*/
+	setPosition(position);
+	
+	/*
+		Report collisions
+	*/
+	if(collision_info)
+	{
+		// Report fall collision
+		if(old_speed.Y < m_speed.Y - 0.1 && !standing_on_unloaded)
+		{
+			CollisionInfo info;
+			info.t = COLLISION_FALL;
+			info.speed = m_speed.Y - old_speed.Y;
+			collision_info->push_back(info);
+		}
+	}
+
+	if(!touching_ground_was && touching_ground){
+		MtEvent *e = new SimpleTriggerEvent("PlayerRegainGround");
+		m_gamedef->event()->put(e);
+	}
+
+	{
+		camera_barely_in_ceiling = false;
+		v3s16 camera_np = floatToInt(getEyePosition(), BS);
+		MapNode n = map.getNodeNoEx(camera_np);
+		if(n.getContent() != CONTENT_IGNORE){
+			if(nodemgr->get(n).walkable){
+				camera_barely_in_ceiling = true;
+			}
+		}
+	}
+}
+
+void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d)
+{
+	move(dtime, map, pos_max_d, NULL);
+}
+
+void LocalPlayer::applyControl(float dtime)
+{
+	// Clear stuff
+	swimming_up = false;
+
+	// Random constants
+	f32 walk_acceleration = 4.0 * BS;
+	f32 walkspeed_max = 4.0 * BS;
+	
+	setPitch(control.pitch);
+	setYaw(control.yaw);
+	
+	v3f move_direction = v3f(0,0,1);
+	move_direction.rotateXZBy(getYaw());
+	
+	v3f speed = v3f(0,0,0);
+	
+	bool fly_allowed = m_gamedef->checkLocalPrivilege("fly");
+	bool fast_allowed = m_gamedef->checkLocalPrivilege("fly");
+
+	bool free_move = fly_allowed && g_settings->getBool("free_move");
+	bool fast_move = fast_allowed && g_settings->getBool("fast_move");
+	bool continuous_forward = g_settings->getBool("continuous_forward");
+
+	if(free_move || is_climbing)
+	{
+		v3f speed = getSpeed();
+		speed.Y = 0;
+		setSpeed(speed);
+	}
+
+	// Whether superspeed mode is used or not
+	bool superspeed = false;
+	
+	// If free movement and fast movement, always move fast
+	if(free_move && fast_move)
+		superspeed = true;
+	
+	// Auxiliary button 1 (E)
+	if(control.aux1)
+	{
+		if(free_move)
+		{
+			// In free movement mode, aux1 descends
+			v3f speed = getSpeed();
+			if(fast_move)
+				speed.Y = -20*BS;
+			else
+				speed.Y = -walkspeed_max;
+			setSpeed(speed);
+		}
+		else if(is_climbing)
+		{
+		        v3f speed = getSpeed();
+			speed.Y = -3*BS;
+			setSpeed(speed);
+		}
+		else
+		{
+			// If not free movement but fast is allowed, aux1 is
+			// "Turbo button"
+			if(fast_move)
+				superspeed = true;
+		}
+	}
+
+	if(continuous_forward)
+		speed += move_direction;
+
+	if(control.up)
+	{
+		if(continuous_forward)
+			superspeed = true;
+		else
+			speed += move_direction;
+	}
+	if(control.down)
+	{
+		speed -= move_direction;
+	}
+	if(control.left)
+	{
+		speed += move_direction.crossProduct(v3f(0,1,0));
+	}
+	if(control.right)
+	{
+		speed += move_direction.crossProduct(v3f(0,-1,0));
+	}
+	if(control.jump)
+	{
+		if(free_move)
+		{
+			v3f speed = getSpeed();
+			if(fast_move)
+				speed.Y = 20*BS;
+			else
+				speed.Y = walkspeed_max;
+			setSpeed(speed);
+		}
+		else if(touching_ground)
+		{
+			/*
+				NOTE: The d value in move() affects jump height by
+				raising the height at which the jump speed is kept
+				at its starting value
+			*/
+			v3f speed = getSpeed();
+			if(speed.Y >= -0.5*BS)
+			{
+				speed.Y = 6.5*BS;
+				setSpeed(speed);
+				
+				MtEvent *e = new SimpleTriggerEvent("PlayerJump");
+				m_gamedef->event()->put(e);
+			}
+		}
+		// Use the oscillating value for getting out of water
+		// (so that the player doesn't fly on the surface)
+		else if(in_water)
+		{
+			v3f speed = getSpeed();
+			speed.Y = 1.5*BS;
+			setSpeed(speed);
+			swimming_up = true;
+		}
+		else if(is_climbing)
+		{
+	                v3f speed = getSpeed();
+			speed.Y = 3*BS;
+			setSpeed(speed);
+		}
+	}
+
+	// The speed of the player (Y is ignored)
+	if(superspeed)
+		speed = speed.normalize() * walkspeed_max * 5.0;
+	else if(control.sneak)
+		speed = speed.normalize() * walkspeed_max / 3.0;
+	else
+		speed = speed.normalize() * walkspeed_max;
+	
+	f32 inc = walk_acceleration * BS * dtime;
+	
+	// Faster acceleration if fast and free movement
+	if(free_move && fast_move)
+		inc = walk_acceleration * BS * dtime * 10;
+	
+	// Accelerate to target speed with maximum increment
+	accelerate(speed, inc);
+}
+
+v3s16 LocalPlayer::getStandingNodePos()
+{
+	if(m_sneak_node_exists)
+		return m_sneak_node;
+	return floatToInt(getPosition(), BS);
+}
+

src/localplayer.h

@@ -0,0 +1,101 @@
+/*
+Minetest-c55
+Copyright (C) 2010-2012 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 General Public License as published by
+the Free Software Foundation; either version 2 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 General Public License for more details.
+
+You should have received a copy of the GNU 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 LOCALPLAYER_HEADER
+#define LOCALPLAYER_HEADER
+
+#include "player.h"
+
+struct PlayerControl
+{
+	PlayerControl()
+	{
+		up = false;
+		down = false;
+		left = false;
+		right = false;
+		jump = false;
+		aux1 = false;
+		sneak = false;
+		pitch = 0;
+		yaw = 0;
+	}
+	PlayerControl(
+		bool a_up,
+		bool a_down,
+		bool a_left,
+		bool a_right,
+		bool a_jump,
+		bool a_aux1,
+		bool a_sneak,
+		float a_pitch,
+		float a_yaw
+	)
+	{
+		up = a_up;
+		down = a_down;
+		left = a_left;
+		right = a_right;
+		jump = a_jump;
+		aux1 = a_aux1;
+		sneak = a_sneak;
+		pitch = a_pitch;
+		yaw = a_yaw;
+	}
+	bool up;
+	bool down;
+	bool left;
+	bool right;
+	bool jump;
+	bool aux1;
+	bool sneak;
+	float pitch;
+	float yaw;
+};
+
+class LocalPlayer : public Player
+{
+public:
+	LocalPlayer(IGameDef *gamedef);
+	virtual ~LocalPlayer();
+
+	bool isLocal() const
+	{
+		return true;
+	}
+	
+	void move(f32 dtime, Map &map, f32 pos_max_d,
+			core::list<CollisionInfo> *collision_info);
+	void move(f32 dtime, Map &map, f32 pos_max_d);
+
+	void applyControl(float dtime);
+
+	v3s16 getStandingNodePos();
+	
+	PlayerControl control;
+
+private:
+	// This is used for determining the sneaking range
+	v3s16 m_sneak_node;
+	// Whether the player is allowed to sneak
+	bool m_sneak_node_exists;
+};
+
+#endif
+

src/player.cpp

@@ -18,20 +18,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 */
 
 #include "player.h"
-#include "map.h"
-#include "connection.h"
 #include "constants.h"
 #include "utility.h"
-#ifndef SERVER
-#include <ITextSceneNode.h>
-#endif
-#include "main.h" // For g_settings
-#include "settings.h"
-#include "nodedef.h"
-#include "collision.h"
-#include "environment.h"
 #include "gamedef.h"
-#include "event.h"
+#include "connection.h" // PEER_ID_INEXISTENT
+#include "settings.h"
 #include "content_sao.h"
 
 Player::Player(IGameDef *gamedef):
@@ -171,615 +162,6 @@ void Player::deSerialize(std::istream &is)
 	}
 }
 
-#ifndef SERVER
-/*
-	LocalPlayer
-*/
-
-LocalPlayer::LocalPlayer(IGameDef *gamedef):
-	Player(gamedef),
-	m_sneak_node(32767,32767,32767),
-	m_sneak_node_exists(false)
-{
-	// Initialize hp to 0, so that no hearts will be shown if server
-	// doesn't support health points
-	hp = 0;
-}
-
-LocalPlayer::~LocalPlayer()
-{
-}
-
-void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d,
-		core::list<CollisionInfo> *collision_info)
-{
-	INodeDefManager *nodemgr = m_gamedef->ndef();
-
-	v3f position = getPosition();
-	v3f oldpos = position;
-	v3s16 oldpos_i = floatToInt(oldpos, BS);
-
-	v3f old_speed = m_speed;
-
-	/*std::cout<<"oldpos_i=("<<oldpos_i.X<<","<<oldpos_i.Y<<","
-			<<oldpos_i.Z<<")"<<std::endl;*/
-
-	/*
-		Calculate new position
-	*/
-	position += m_speed * dtime;
-	
-	// Skip collision detection if a special movement mode is used
-	bool free_move = g_settings->getBool("free_move");
-	if(free_move)
-	{
-		setPosition(position);
-		return;
-	}
-
-	/*
-		Collision detection
-	*/
-	
-	// Player position in nodes
-	v3s16 pos_i = floatToInt(position, BS);
-	
-	/*
-		Check if player is in water (the oscillating value)
-	*/
-	try{
-		// If in water, the threshold of coming out is at higher y
-		if(in_water)
-		{
-			v3s16 pp = floatToInt(position + v3f(0,BS*0.1,0), BS);
-			in_water = nodemgr->get(map.getNode(pp).getContent()).isLiquid();
-		}
-		// If not in water, the threshold of going in is at lower y
-		else
-		{
-			v3s16 pp = floatToInt(position + v3f(0,BS*0.5,0), BS);
-			in_water = nodemgr->get(map.getNode(pp).getContent()).isLiquid();
-		}
-	}
-	catch(InvalidPositionException &e)
-	{
-		in_water = false;
-	}
-
-	/*
-		Check if player is in water (the stable value)
-	*/
-	try{
-		v3s16 pp = floatToInt(position + v3f(0,0,0), BS);
-		in_water_stable = nodemgr->get(map.getNode(pp).getContent()).isLiquid();
-	}
-	catch(InvalidPositionException &e)
-	{
-		in_water_stable = false;
-	}
-
-	/*
-	        Check if player is climbing
-	*/
-
-	try {
-		v3s16 pp = floatToInt(position + v3f(0,0.5*BS,0), BS);
-		v3s16 pp2 = floatToInt(position + v3f(0,-0.2*BS,0), BS);
-		is_climbing = ((nodemgr->get(map.getNode(pp).getContent()).climbable ||
-		nodemgr->get(map.getNode(pp2).getContent()).climbable) && !free_move);
-	}
-	catch(InvalidPositionException &e)
-	{
-		is_climbing = false;
-	}
-
-	/*
-		Collision uncertainty radius
-		Make it a bit larger than the maximum distance of movement
-	*/
-	//f32 d = pos_max_d * 1.1;
-	// A fairly large value in here makes moving smoother
-	f32 d = 0.15*BS;
-
-	// This should always apply, otherwise there are glitches
-	assert(d > pos_max_d);
-
-	float player_radius = BS*0.30;
-	float player_height = BS*1.55;
-	
-	// Maximum distance over border for sneaking
-	f32 sneak_max = BS*0.4;
-
-	/*
-		If sneaking, player has larger collision radius to keep from
-		falling
-	*/
-	/*if(control.sneak)
-		player_radius = sneak_max + d*1.1;*/
-	
-	/*
-		If sneaking, keep in range from the last walked node and don't
-		fall off from it
-	*/
-	if(control.sneak && m_sneak_node_exists)
-	{
-		f32 maxd = 0.5*BS + sneak_max;
-		v3f lwn_f = intToFloat(m_sneak_node, BS);
-		position.X = rangelim(position.X, lwn_f.X-maxd, lwn_f.X+maxd);
-		position.Z = rangelim(position.Z, lwn_f.Z-maxd, lwn_f.Z+maxd);
-		
-		f32 min_y = lwn_f.Y + 0.5*BS;
-		if(position.Y < min_y)
-		{
-			position.Y = min_y;
-
-			//v3f old_speed = m_speed;
-
-			if(m_speed.Y < 0)
-				m_speed.Y = 0;
-
-			/*if(collision_info)
-			{
-				// Report fall collision
-				if(old_speed.Y < m_speed.Y - 0.1)
-				{
-					CollisionInfo info;
-					info.t = COLLISION_FALL;
-					info.speed = m_speed.Y - old_speed.Y;
-					collision_info->push_back(info);
-				}
-			}*/
-		}
-	}
-
-	/*
-		Calculate player collision box (new and old)
-	*/
-	core::aabbox3d<f32> playerbox(
-		position.X - player_radius,
-		position.Y - 0.0,
-		position.Z - player_radius,
-		position.X + player_radius,
-		position.Y + player_height,
-		position.Z + player_radius
-	);
-	core::aabbox3d<f32> playerbox_old(
-		oldpos.X - player_radius,
-		oldpos.Y - 0.0,
-		oldpos.Z - player_radius,
-		oldpos.X + player_radius,
-		oldpos.Y + player_height,
-		oldpos.Z + player_radius
-	);
-
-	/*
-		If the player's feet touch the topside of any node, this is
-		set to true.
-
-		Player is allowed to jump when this is true.
-	*/
-	bool touching_ground_was = touching_ground;
-	touching_ground = false;
-
-	/*std::cout<<"Checking collisions for ("
-			<<oldpos_i.X<<","<<oldpos_i.Y<<","<<oldpos_i.Z
-			<<") -> ("
-			<<pos_i.X<<","<<pos_i.Y<<","<<pos_i.Z
-			<<"):"<<std::endl;*/
-	
-	bool standing_on_unloaded = false;
-	
-	/*
-		Go through every node around the player
-	*/
-	for(s16 y = oldpos_i.Y - 1; y <= oldpos_i.Y + 2; y++)
-	for(s16 z = oldpos_i.Z - 1; z <= oldpos_i.Z + 1; z++)
-	for(s16 x = oldpos_i.X - 1; x <= oldpos_i.X + 1; x++)
-	{
-		bool is_unloaded = false;
-		try{
-			// Player collides into walkable nodes
-			if(nodemgr->get(map.getNode(v3s16(x,y,z))).walkable == false)
-				continue;
-		}
-		catch(InvalidPositionException &e)
-		{
-			is_unloaded = true;
-			// Doing nothing here will block the player from
-			// walking over map borders
-		}
-
-		core::aabbox3d<f32> nodebox = getNodeBox(v3s16(x,y,z), BS);
-		
-		/*
-			See if the player is touching ground.
-
-			Player touches ground if player's minimum Y is near node's
-			maximum Y and player's X-Z-area overlaps with the node's
-			X-Z-area.
-
-			Use 0.15*BS so that it is easier to get on a node.
-		*/
-		if(
-				//fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < d
-				fabs(nodebox.MaxEdge.Y-playerbox.MinEdge.Y) < 0.15*BS
-				&& nodebox.MaxEdge.X-d > playerbox.MinEdge.X
-				&& nodebox.MinEdge.X+d < playerbox.MaxEdge.X
-				&& nodebox.MaxEdge.Z-d > playerbox.MinEdge.Z
-				&& nodebox.MinEdge.Z+d < playerbox.MaxEdge.Z
-		){
-			touching_ground = true;
-			if(is_unloaded)
-				standing_on_unloaded = true;
-		}
-		
-		// If player doesn't intersect with node, ignore node.
-		if(playerbox.intersectsWithBox(nodebox) == false)
-			continue;
-		
-		/*
-			Go through every axis
-		*/
-		v3f dirs[3] = {
-			v3f(0,0,1), // back-front
-			v3f(0,1,0), // top-bottom
-			v3f(1,0,0), // right-left
-		};
-		for(u16 i=0; i<3; i++)
-		{
-			/*
-				Calculate values along the axis
-			*/
-			f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[i]);
-			f32 nodemin = nodebox.MinEdge.dotProduct(dirs[i]);
-			f32 playermax = playerbox.MaxEdge.dotProduct(dirs[i]);
-			f32 playermin = playerbox.MinEdge.dotProduct(dirs[i]);
-			f32 playermax_old = playerbox_old.MaxEdge.dotProduct(dirs[i]);
-			f32 playermin_old = playerbox_old.MinEdge.dotProduct(dirs[i]);
-			
-			/*
-				Check collision for the axis.
-				Collision happens when player is going through a surface.
-			*/
-			/*f32 neg_d = d;
-			f32 pos_d = d;
-			// Make it easier to get on top of a node
-			if(i == 1)
-				neg_d = 0.15*BS;
-			bool negative_axis_collides =
-				(nodemax > playermin && nodemax <= playermin_old + neg_d
-					&& m_speed.dotProduct(dirs[i]) < 0);
-			bool positive_axis_collides =
-				(nodemin < playermax && nodemin >= playermax_old - pos_d
-					&& m_speed.dotProduct(dirs[i]) > 0);*/
-			bool negative_axis_collides =
-				(nodemax > playermin && nodemax <= playermin_old + d
-					&& m_speed.dotProduct(dirs[i]) < 0);
-			bool positive_axis_collides =
-				(nodemin < playermax && nodemin >= playermax_old - d
-					&& m_speed.dotProduct(dirs[i]) > 0);
-			bool main_axis_collides =
-					negative_axis_collides || positive_axis_collides;
-			
-			/*
-				Check overlap of player and node in other axes
-			*/
-			bool other_axes_overlap = true;
-			for(u16 j=0; j<3; j++)
-			{
-				if(j == i)
-					continue;
-				f32 nodemax = nodebox.MaxEdge.dotProduct(dirs[j]);
-				f32 nodemin = nodebox.MinEdge.dotProduct(dirs[j]);
-				f32 playermax = playerbox.MaxEdge.dotProduct(dirs[j]);
-				f32 playermin = playerbox.MinEdge.dotProduct(dirs[j]);
-				if(!(nodemax - d > playermin && nodemin + d < playermax))
-				{
-					other_axes_overlap = false;
-					break;
-				}
-			}
-			
-			/*
-				If this is a collision, revert the position in the main
-				direction.
-			*/
-			if(other_axes_overlap && main_axis_collides)
-			{
-				//v3f old_speed = m_speed;
-
-				m_speed -= m_speed.dotProduct(dirs[i]) * dirs[i];
-				position -= position.dotProduct(dirs[i]) * dirs[i];
-				position += oldpos.dotProduct(dirs[i]) * dirs[i];
-				
-				/*if(collision_info)
-				{
-					// Report fall collision
-					if(old_speed.Y < m_speed.Y - 0.1)
-					{
-						CollisionInfo info;
-						info.t = COLLISION_FALL;
-						info.speed = m_speed.Y - old_speed.Y;
-						collision_info->push_back(info);
-					}
-				}*/
-			}
-		
-		}
-	} // xyz
-
-	/*
-		Check the nodes under the player to see from which node the
-		player is sneaking from, if any.
-	*/
-	{
-		v3s16 pos_i_bottom = floatToInt(position - v3f(0,BS/2,0), BS);
-		v2f player_p2df(position.X, position.Z);
-		f32 min_distance_f = 100000.0*BS;
-		// If already seeking from some node, compare to it.
-		/*if(m_sneak_node_exists)
-		{
-			v3f sneaknode_pf = intToFloat(m_sneak_node, BS);
-			v2f sneaknode_p2df(sneaknode_pf.X, sneaknode_pf.Z);
-			f32 d_horiz_f = player_p2df.getDistanceFrom(sneaknode_p2df);
-			f32 d_vert_f = fabs(sneaknode_pf.Y + BS*0.5 - position.Y);
-			// Ignore if player is not on the same level (likely dropped)
-			if(d_vert_f < 0.15*BS)
-				min_distance_f = d_horiz_f;
-		}*/
-		v3s16 new_sneak_node = m_sneak_node;
-		for(s16 x=-1; x<=1; x++)
-		for(s16 z=-1; z<=1; z++)
-		{
-			v3s16 p = pos_i_bottom + v3s16(x,0,z);
-			v3f pf = intToFloat(p, BS);
-			v2f node_p2df(pf.X, pf.Z);
-			f32 distance_f = player_p2df.getDistanceFrom(node_p2df);
-			f32 max_axis_distance_f = MYMAX(
-					fabs(player_p2df.X-node_p2df.X),
-					fabs(player_p2df.Y-node_p2df.Y));
-					
-			if(distance_f > min_distance_f ||
-					max_axis_distance_f > 0.5*BS + sneak_max + 0.1*BS)
-				continue;
-
-			try{
-				// The node to be sneaked on has to be walkable
-				if(nodemgr->get(map.getNode(p)).walkable == false)
-					continue;
-				// And the node above it has to be nonwalkable
-				if(nodemgr->get(map.getNode(p+v3s16(0,1,0))).walkable == true)
-					continue;
-			}
-			catch(InvalidPositionException &e)
-			{
-				continue;
-			}
-
-			min_distance_f = distance_f;
-			new_sneak_node = p;
-		}
-		
-		bool sneak_node_found = (min_distance_f < 100000.0*BS*0.9);
-		
-		if(control.sneak && m_sneak_node_exists)
-		{
-			if(sneak_node_found)
-				m_sneak_node = new_sneak_node;
-		}
-		else
-		{
-			m_sneak_node = new_sneak_node;
-			m_sneak_node_exists = sneak_node_found;
-		}
-
-		/*
-			If sneaking, the player's collision box can be in air, so
-			this has to be set explicitly
-		*/
-		if(sneak_node_found && control.sneak)
-			touching_ground = true;
-	}
-	
-	/*
-		Set new position
-	*/
-	setPosition(position);
-	
-	/*
-		Report collisions
-	*/
-	if(collision_info)
-	{
-		// Report fall collision
-		if(old_speed.Y < m_speed.Y - 0.1 && !standing_on_unloaded)
-		{
-			CollisionInfo info;
-			info.t = COLLISION_FALL;
-			info.speed = m_speed.Y - old_speed.Y;
-			collision_info->push_back(info);
-		}
-	}
-
-	if(!touching_ground_was && touching_ground){
-		MtEvent *e = new SimpleTriggerEvent("PlayerRegainGround");
-		m_gamedef->event()->put(e);
-	}
-
-	{
-		camera_barely_in_ceiling = false;
-		v3s16 camera_np = floatToInt(getEyePosition(), BS);
-		MapNode n = map.getNodeNoEx(camera_np);
-		if(n.getContent() != CONTENT_IGNORE){
-			if(nodemgr->get(n).walkable){
-				camera_barely_in_ceiling = true;
-			}
-		}
-	}
-}
-
-void LocalPlayer::move(f32 dtime, Map &map, f32 pos_max_d)
-{
-	move(dtime, map, pos_max_d, NULL);
-}
-
-void LocalPlayer::applyControl(float dtime)
-{
-	// Clear stuff
-	swimming_up = false;
-
-	// Random constants
-	f32 walk_acceleration = 4.0 * BS;
-	f32 walkspeed_max = 4.0 * BS;
-	
-	setPitch(control.pitch);
-	setYaw(control.yaw);
-	
-	v3f move_direction = v3f(0,0,1);
-	move_direction.rotateXZBy(getYaw());
-	
-	v3f speed = v3f(0,0,0);
-
-	bool free_move = g_settings->getBool("free_move");
-	bool fast_move = g_settings->getBool("fast_move");
-	bool continuous_forward = g_settings->getBool("continuous_forward");
-
-	if(free_move || is_climbing)
-	{
-		v3f speed = getSpeed();
-		speed.Y = 0;
-		setSpeed(speed);
-	}
-
-	// Whether superspeed mode is used or not
-	bool superspeed = false;
-	
-	// If free movement and fast movement, always move fast
-	if(free_move && fast_move)
-		superspeed = true;
-	
-	// Auxiliary button 1 (E)
-	if(control.aux1)
-	{
-		if(free_move)
-		{
-			// In free movement mode, aux1 descends
-			v3f speed = getSpeed();
-			if(fast_move)
-				speed.Y = -20*BS;
-			else
-				speed.Y = -walkspeed_max;
-			setSpeed(speed);
-		}
-		else if(is_climbing)
-		{
-		        v3f speed = getSpeed();
-			speed.Y = -3*BS;
-			setSpeed(speed);
-		}
-		else
-		{
-			// If not free movement but fast is allowed, aux1 is
-			// "Turbo button"
-			if(fast_move)
-				superspeed = true;
-		}
-	}
-
-	if(continuous_forward)
-		speed += move_direction;
-
-	if(control.up)
-	{
-		if(continuous_forward)
-			superspeed = true;
-		else
-			speed += move_direction;
-	}
-	if(control.down)
-	{
-		speed -= move_direction;
-	}
-	if(control.left)
-	{
-		speed += move_direction.crossProduct(v3f(0,1,0));
-	}
-	if(control.right)
-	{
-		speed += move_direction.crossProduct(v3f(0,-1,0));
-	}
-	if(control.jump)
-	{
-		if(free_move)
-		{
-			v3f speed = getSpeed();
-			if(fast_move)
-				speed.Y = 20*BS;
-			else
-				speed.Y = walkspeed_max;
-			setSpeed(speed);
-		}
-		else if(touching_ground)
-		{
-			/*
-				NOTE: The d value in move() affects jump height by
-				raising the height at which the jump speed is kept
-				at its starting value
-			*/
-			v3f speed = getSpeed();
-			if(speed.Y >= -0.5*BS)
-			{
-				speed.Y = 6.5*BS;
-				setSpeed(speed);
-				
-				MtEvent *e = new SimpleTriggerEvent("PlayerJump");
-				m_gamedef->event()->put(e);
-			}
-		}
-		// Use the oscillating value for getting out of water
-		// (so that the player doesn't fly on the surface)
-		else if(in_water)
-		{
-			v3f speed = getSpeed();
-			speed.Y = 1.5*BS;
-			setSpeed(speed);
-			swimming_up = true;
-		}
-		else if(is_climbing)
-		{
-	                v3f speed = getSpeed();
-			speed.Y = 3*BS;
-			setSpeed(speed);
-		}
-	}
-
-	// The speed of the player (Y is ignored)
-	if(superspeed)
-		speed = speed.normalize() * walkspeed_max * 5.0;
-	else if(control.sneak)
-		speed = speed.normalize() * walkspeed_max / 3.0;
-	else
-		speed = speed.normalize() * walkspeed_max;
-	
-	f32 inc = walk_acceleration * BS * dtime;
-	
-	// Faster acceleration if fast and free movement
-	if(free_move && fast_move)
-		inc = walk_acceleration * BS * dtime * 10;
-	
-	// Accelerate to target speed with maximum increment
-	accelerate(speed, inc);
-}
-
-v3s16 LocalPlayer::getStandingNodePos()
-{
-	if(m_sneak_node_exists)
-		return m_sneak_node;
-	return floatToInt(getPosition(), BS);
-}
-
-#endif
-
 /*
 	RemotePlayer
 */

src/player.h

@@ -20,14 +20,13 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #ifndef PLAYER_HEADER
 #define PLAYER_HEADER
 
-#include "common_irrlicht.h"
+#include "irrlichttypes.h"
 #include "inventory.h"
 
 #define PLAYERNAME_SIZE 20
 
 #define PLAYERNAME_ALLOWED_CHARS "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789-_"
 
-
 class Map;
 class IGameDef;
 struct CollisionInfo;
@@ -167,83 +166,6 @@ protected:
 	v3f m_position;
 };
 
-#ifndef SERVER
-struct PlayerControl
-{
-	PlayerControl()
-	{
-		up = false;
-		down = false;
-		left = false;
-		right = false;
-		jump = false;
-		aux1 = false;
-		sneak = false;
-		pitch = 0;
-		yaw = 0;
-	}
-	PlayerControl(
-		bool a_up,
-		bool a_down,
-		bool a_left,
-		bool a_right,
-		bool a_jump,
-		bool a_aux1,
-		bool a_sneak,
-		float a_pitch,
-		float a_yaw
-	)
-	{
-		up = a_up;
-		down = a_down;
-		left = a_left;
-		right = a_right;
-		jump = a_jump;
-		aux1 = a_aux1;
-		sneak = a_sneak;
-		pitch = a_pitch;
-		yaw = a_yaw;
-	}
-	bool up;
-	bool down;
-	bool left;
-	bool right;
-	bool jump;
-	bool aux1;
-	bool sneak;
-	float pitch;
-	float yaw;
-};
-
-class LocalPlayer : public Player
-{
-public:
-	LocalPlayer(IGameDef *gamedef);
-	virtual ~LocalPlayer();
-
-	bool isLocal() const
-	{
-		return true;
-	}
-	
-	void move(f32 dtime, Map &map, f32 pos_max_d,
-			core::list<CollisionInfo> *collision_info);
-	void move(f32 dtime, Map &map, f32 pos_max_d);
-
-	void applyControl(float dtime);
-
-	v3s16 getStandingNodePos();
-	
-	PlayerControl control;
-
-private:
-	// This is used for determining the sneaking range
-	v3s16 m_sneak_node;
-	// Whether the player is allowed to sneak
-	bool m_sneak_node_exists;
-};
-#endif // !SERVER
-
 /*
 	Player on the server
 */

src/scriptapi.cpp

@@ -3985,6 +3985,16 @@ static int l_get_password_hash(lua_State *L)
 	return 1;
 }
 
+// notify_authentication_modified(name)
+static int l_notify_authentication_modified(lua_State *L)
+{
+	std::string name = "";
+	if(lua_isstring(L, 1))
+		name = lua_tostring(L, 1);
+	get_server(L)->reportPrivsModified(name);
+	return 0;
+}
+
 static const struct luaL_Reg minetest_f [] = {
 	{"debug", l_debug},
 	{"log", l_log},
@@ -4006,6 +4016,7 @@ static const struct luaL_Reg minetest_f [] = {
 	{"sound_stop", l_sound_stop},
 	{"is_singleplayer", l_is_singleplayer},
 	{"get_password_hash", l_get_password_hash},
+	{"notify_authentication_modified", l_notify_authentication_modified},
 	{NULL, NULL}
 };
 

src/server.cpp

@@ -2194,13 +2194,13 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 		// Send node definitions
 		SendNodeDef(m_con, peer_id, m_nodedef);
 		
-		// Send texture announcement
+		// Send media announcement
 		sendMediaAnnouncement(peer_id);
 		
-		// Send player info to all players
+		// Send privileges
-		//SendPlayerInfos();
+		SendPlayerPrivileges(peer_id);
 		
-		// Send inventory to player
+		// Send inventory
 		UpdateCrafting(peer_id);
 		SendInventory(peer_id);
 		
@@ -3544,6 +3544,28 @@ void Server::SendMovePlayer(u16 peer_id)
 	m_con.Send(peer_id, 0, data, true);
 }
 
+void Server::SendPlayerPrivileges(u16 peer_id)
+{
+	Player *player = m_env->getPlayer(peer_id);
+	assert(player);
+	std::set<std::string> privs;
+	scriptapi_get_auth(m_lua, player->getName(), NULL, &privs);
+	
+	std::ostringstream os(std::ios_base::binary);
+	writeU16(os, TOCLIENT_PRIVILEGES);
+	writeU16(os, privs.size());
+	for(std::set<std::string>::const_iterator i = privs.begin();
+			i != privs.end(); i++){
+		os<<serializeString(*i);
+	}
+
+	// Make data buffer
+	std::string s = os.str();
+	SharedBuffer<u8> data((u8*)s.c_str(), s.size());
+	// Send as reliable
+	m_con.Send(peer_id, 0, data, true);
+}
+
 s32 Server::playSound(const SimpleSoundSpec &spec,
 		const ServerSoundParams &params)
 {
@@ -4286,6 +4308,23 @@ bool Server::checkPriv(const std::string &name, const std::string &priv)
 	return (privs.count(priv) != 0);
 }
 
+void Server::reportPrivsModified(const std::string &name)
+{
+	if(name == ""){
+		for(core::map<u16, RemoteClient*>::Iterator
+				i = m_clients.getIterator();
+				i.atEnd() == false; i++){
+			RemoteClient *client = i.getNode()->getValue();
+			SendPlayerPrivileges(client->peer_id);
+		}
+	} else {
+		Player *player = m_env->getPlayer(name.c_str());
+		if(!player)
+			return;
+		SendPlayerPrivileges(player->peer_id);
+	}
+}
+
 // Saves g_settings to configpath given at initialization
 void Server::saveConfig()
 {

src/server.h

@@ -502,6 +502,7 @@ public:
 	// Envlock + conlock
 	std::set<std::string> getPlayerEffectivePrivs(const std::string &name);
 	bool checkPriv(const std::string &name, const std::string &priv);
+	void reportPrivsModified(const std::string &name=""); // ""=all
 
 	// Saves g_settings to configpath given at initialization
 	void saveConfig();
@@ -592,11 +593,12 @@ private:
 	*/
 
 	// Envlock and conlock should be locked when calling these
-	void SendMovePlayer(u16 peer_id);
 	void SendInventory(u16 peer_id);
 	void SendChatMessage(u16 peer_id, const std::wstring &message);
 	void BroadcastChatMessage(const std::wstring &message);
 	void SendPlayerHP(u16 peer_id);
+	void SendMovePlayer(u16 peer_id);
+	void SendPlayerPrivileges(u16 peer_id);
 	/*
 		Send a node removal/addition event to all clients except ignore_id.
 		Additionally, if far_players!=NULL, players further away than