Working version before block send priorization update

doc/README.txt

@@ -1,14 +1,6 @@
 Minetest-c55
 ---------------
 
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
-THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-IN THE SOFTWARE.
-
 Copyright (c) 2010 Perttu Ahola <celeron55@gmail.com>
 
 An InfiniMiner/Minecraft inspired game.
@@ -16,9 +8,13 @@ An InfiniMiner/Minecraft inspired game.
 This is a development version:
 - Don't expect it to work as well as a finished game will.
 - Please report any bugs to me. That way I can fix them to the next release.
+	- debug.txt is very useful when the game crashes.
 
-Server information:
+Public servers:
-- I usually have a server running at celer.oni.biz on port 30000
+	kray.dy.fi :30000 (friend's server - usually in creative mode)
+	celer.oni.biz :30000 (main development server)
+- Both of these have very limited bandwidth and the game will become laggy
+  with 4-5 players.
 - If you want to run a server, I can list you on my website and in here.
 
 Features, as of now:
@@ -35,8 +31,9 @@ Controls:
 - R: Toggle full view range
 
 Configuration file:
-- Can be passed as parameter to the executable.
+- An optional configuration file can be used. See minetest.conf.example.
-- If not given as parameter, these are checked, in order:
+- Path to file can be passed as a parameter to the executable.
+- If not given as a parameter, these are checked, in order:
 	../minetest.conf
 	../../minetest.conf
 
@@ -50,14 +47,35 @@ Running on GNU/Linux:
     LD_LIBRARY_PATH=. ./fasttest
 - If it doesn't work, use wine. I aim at 100% compatibility with wine.
 
-COPYING (License of Minetest-c55):
+Compiling on GNU/Linux:
-- This version of the game is FREEWARE.
+- You need:
-- You can play this version of the game without charge.
+* Irrlicht:
-- You can redistribute this version of the game without charge, only with
+	http://downloads.sourceforge.net/irrlicht/irrlicht-1.7.2.zip
-  these same license terms you are reading now, and provided that you give
+* JThread:
-  proper information about who has made the game (me) and where to get the
+	http://research.edm.uhasselt.be/~jori/page/index.php?n=CS.Jthread
-  original copy and new versions (http://celer.oni.biz/~celeron55/minetest).
+- Neither of which can probably be found from your distro's repository.
-- You are not allowed to sell this game for a price.
+- Compiling each of them should be fairly unproblematic, though.
+
+
+License of Minetest-c55
+-----------------------
+
+Minetest-c55
+Copyright (C) 2010 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.
 
 
 Irrlicht

doc/gpl-2.0.txt

@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+  To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
+source code.  And you must show them these terms so they know their
+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    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.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

minetest.conf.example

@@ -37,8 +37,11 @@ mapgen_heightmap_blocksize = 64
 mapgen_height_randmax = constant 70.0
 mapgen_height_randfactor = constant 0.6
 mapgen_height_base = linear 0 80 0
-mapgen_plants_amount = constant 1.0
+mapgen_plants_amount = 1.0
 
+# Set to true to enable creative mode (unlimited inventory)
 creative_mode = false
+# Player and object positions are sent at intervals specified by this
+objectdata_inverval = 0.2
 
 

src/client.cpp

@@ -14,10 +14,6 @@
 	#define sleep_ms(x) usleep(x*1000)
 #endif
 
-/*
-	FIXME: This thread can access the environment at any time
-*/
-
 void * ClientUpdateThread::Thread()
 {
 	ThreadStarted();
@@ -144,6 +140,22 @@ void Client::step(float dtime)
 		m_con.RunTimeouts(dtime);
 	}
 
+	/*
+		Packet counter
+	*/
+	{
+		static float counter = -0.001;
+		counter -= dtime;
+		if(counter <= 0.0)
+		{
+			counter = 10.0;
+			
+			dout_client<<"Client packetcounter:"<<std::endl;
+			m_packetcounter.print(dout_client);
+			m_packetcounter.clear();
+		}
+	}
+
 	{
 		/*
 			Delete unused sectors
@@ -171,7 +183,9 @@ void Client::step(float dtime)
 
 			if(num > 0)
 			{
-				dstream<<DTIME<<"Client: Deleted blocks of "<<num
+				/*dstream<<DTIME<<"Client: Deleted blocks of "<<num
+						<<" unused sectors"<<std::endl;*/
+				dstream<<DTIME<<"Client: Deleted "<<num
 						<<" unused sectors"<<std::endl;
 				
 				/*
@@ -433,12 +447,19 @@ void Client::Receive()
 void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
 {
 	DSTACK(__FUNCTION_NAME);
+
 	// Ignore packets that don't even fit a command
 	if(datasize < 2)
+	{
+		m_packetcounter.add(60000);
 		return;
+	}
 
 	ToClientCommand command = (ToClientCommand)readU16(&data[0]);
 
+	//dstream<<"Client: received command="<<command<<std::endl;
+	m_packetcounter.add((u16)command);
+	
 	/*
 		If this check is removed, be sure to change the queue
 		system to know the ids

src/client.h

@@ -266,6 +266,8 @@ private:
 	bool m_inventory_updated;
 
 	core::map<v3s16, bool> m_active_blocks;
+
+	PacketCounter m_packetcounter;
 };
 
 #endif

src/clientserver.h

@@ -16,10 +16,10 @@ enum ToClientCommand
 	*/
 
 	TOCLIENT_BLOCKDATA = 0x20, //TODO: Multiple blocks
-	TOCLIENT_ADDNODE,
+	TOCLIENT_ADDNODE = 0x21,
-	TOCLIENT_REMOVENODE,
+	TOCLIENT_REMOVENODE = 0x22,
 	
-	TOCLIENT_PLAYERPOS,
+	TOCLIENT_PLAYERPOS = 0x23,
 	/*
 		[0] u16 command
 		// Followed by an arbitary number of these:
@@ -31,7 +31,7 @@ enum ToClientCommand
 		[N+2+12+12+4] s32 yaw*100
 	*/
 
-	TOCLIENT_PLAYERINFO,
+	TOCLIENT_PLAYERINFO = 0x24,
 	/*
 		[0] u16 command
 		// Followed by an arbitary number of these:
@@ -40,22 +40,22 @@ enum ToClientCommand
 		[N] char[20] name
 	*/
 	
-	TOCLIENT_OPT_BLOCK_NOT_FOUND, // Not used
+	TOCLIENT_OPT_BLOCK_NOT_FOUND = 0x25, // Not used
 
-	TOCLIENT_SECTORMETA,
+	TOCLIENT_SECTORMETA = 0x26, // Not used
 	/*
 		[0] u16 command
 		[2] u8 sector count
 		[3...] v2s16 pos + sector metadata
 	*/
 
-	TOCLIENT_INVENTORY,
+	TOCLIENT_INVENTORY = 0x27,
 	/*
 		[0] u16 command
 		[2] serialized inventory
 	*/
 	
-	TOCLIENT_OBJECTDATA,
+	TOCLIENT_OBJECTDATA = 0x28,
 	/*
 		Sent as unreliable.
 
@@ -84,7 +84,7 @@ enum ToServerCommand
 		[3] u8[20] player_name
 	*/
 
-	TOSERVER_INIT2,
+	TOSERVER_INIT2 = 0x11,
 	/*
 		Sent as an ACK for TOCLIENT_INIT.
 		After this, the server can send data.
@@ -93,10 +93,10 @@ enum ToServerCommand
 	*/
 
 	TOSERVER_GETBLOCK=0x20, // Not used
-	TOSERVER_ADDNODE, // Not used
+	TOSERVER_ADDNODE = 0x21, // Not used
-	TOSERVER_REMOVENODE, // deprecated
+	TOSERVER_REMOVENODE = 0x22, // deprecated
 
-	TOSERVER_PLAYERPOS,
+	TOSERVER_PLAYERPOS = 0x23,
 	/*
 		[0] u16 command
 		[2] v3s32 position*100
@@ -105,7 +105,7 @@ enum ToServerCommand
 		[2+12+12+4] s32 yaw*100
 	*/
 
-	TOSERVER_GOTBLOCKS,
+	TOSERVER_GOTBLOCKS = 0x24,
 	/*
 		[0] u16 command
 		[2] u8 count
@@ -114,7 +114,7 @@ enum ToServerCommand
 		...
 	*/
 
-	TOSERVER_DELETEDBLOCKS,
+	TOSERVER_DELETEDBLOCKS = 0x25,
 	/*
 		[0] u16 command
 		[2] u8 count
@@ -123,14 +123,14 @@ enum ToServerCommand
 		...
 	*/
 
-	TOSERVER_ADDNODE_FROM_INVENTORY, // deprecated
+	TOSERVER_ADDNODE_FROM_INVENTORY = 0x26, // deprecated
 	/*
 		[0] u16 command
 		[2] v3s16 pos
 		[8] u16 i
 	*/
 
-	TOSERVER_CLICK_OBJECT,
+	TOSERVER_CLICK_OBJECT = 0x27,
 	/*
 		length: 13
 		[0] u16 command
@@ -140,7 +140,7 @@ enum ToServerCommand
 		[11] u16 item
 	*/
 
-	TOSERVER_CLICK_GROUND,
+	TOSERVER_CLICK_GROUND = 0x28,
 	/*
 		length: 17
 		[0] u16 command
@@ -150,14 +150,14 @@ enum ToServerCommand
 		[15] u16 item
 	*/
 	
-	TOSERVER_RELEASE,
+	TOSERVER_RELEASE = 0x29,
 	/*
 		length: 3
 		[0] u16 command
 		[2] u8 button
 	*/
 
-	TOSERVER_SIGNTEXT,
+	TOSERVER_SIGNTEXT = 0x30,
 	/*
 		u16 command
 		v3s16 blockpos

src/constants.h

@@ -23,9 +23,6 @@
 #define SERVERMAP_DELETE_UNUSED_SECTORS_TIMEOUT (60*10)
 #define SERVER_MAP_SAVE_INTERVAL (60)
 
-//#define SERVERMAP_DELETE_UNUSED_SECTORS_TIMEOUT (5)
-//#define SERVER_MAP_SAVE_INTERVAL (5)
-
 #define FOV_ANGLE (PI/2.5)
 
 // The absolute working limit is (2^15 - viewing_range).
@@ -44,29 +41,29 @@
 #define FPS_DEFAULT_WANTED 30
 #define FPS_DEFAULT_MAX 60
 
-#define FORCEDFETCH_RANGE 80
-
 #define HEIGHTMAP_RANGE_NODES 300
 
-// The freetime ratio is dynamically kept high enough to make this
-// dtime jitter possible
-// Allow 50% = 0.1
-/*#define DTIME_JITTER_MAX_FRACTION 0.5
-#define FREETIME_RATIO_MIN 0.05
-#define FREETIME_RATIO_MAX 0.4*/
-
 //#define FREETIME_RATIO 0.2
 #define FREETIME_RATIO 0.15
 
+// Sectors are split to SECTOR_HEIGHTMAP_SPLIT^2 heightmaps
 #define SECTOR_HEIGHTMAP_SPLIT 2
 
 #define PLAYER_INVENTORY_SIZE (8*4)
 
 #define SIGN_TEXT_MAX_LENGTH 50
 
-#define ACTIVE_OBJECT_D_BLOCKS 2
+// The distance of how far objects will be sent to client
+//#define ACTIVE_OBJECT_D_BLOCKS 2
 
+// Wether to catch all std::exceptions
 #define CATCH_UNJANDLED_EXCEPTIONS 1
 
+/*
+	Collecting active blocks is stopped after object data
+	size reaches this
+*/
+#define MAX_OBJECTDATA_SIZE 450
+
 #endif
 

src/debug.h

@@ -3,7 +3,7 @@
 */
 
 /*
-	Debug stack and assertion
+	Debug stuff
 */
 
 #ifndef DEBUG_HEADER
@@ -172,5 +172,58 @@ private:
 			DEBUG_STACK_TEXT_SIZE, __VA_ARGS__);\
 	DebugStacker __debug_stacker(__buf);
 
-#endif
+/*
+	Packet counter
+*/
+
+class PacketCounter
+{
+public:
+	PacketCounter()
+	{
+	}
+
+	void add(u16 command)
+	{
+		core::map<u16, u16>::Node *n = m_packets.find(command);
+		if(n == NULL)
+		{
+			m_packets[command] = 1;
+		}
+		else
+		{
+			n->setValue(n->getValue()+1);
+		}
+	}
+
+	void clear()
+	{
+		for(core::map<u16, u16>::Iterator
+				i = m_packets.getIterator();
+				i.atEnd() == false; i++)
+		{
+			i.getNode()->setValue(0);
+		}
+	}
+
+	void print(std::ostream &o)
+	{
+		for(core::map<u16, u16>::Iterator
+				i = m_packets.getIterator();
+				i.atEnd() == false; i++)
+		{
+			o<<"cmd "<<i.getNode()->getKey()
+					<<" count "<<i.getNode()->getValue()
+					<<std::endl;
+		}
+	}
+
+private:
+	// command, count
+	core::map<u16, u16> m_packets;
+};
+
+
+#endif // DEBUG_HEADER
+
 

src/main.cpp

@@ -1,7 +1,24 @@
 /*
-(c) 2010 Perttu Ahola <celeron55@gmail.com>
+Minetest-c55
+Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
 
-Minetest
+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.
+*/
+
+/*
+=============================== NOTES ==============================
 
 NOTE: VBO cannot be turned on for fast-changing stuff because there
       is an apparanet memory leak in irrlicht when using it
@@ -137,43 +154,39 @@ TODO: Make fetching sector's blocks more efficient when rendering
 
 TODO: Make the video backend selectable
 
-TODO: A timestamp to blocks
+Block object server side:
-
-TODO: Client side:
-      - The server sends all active objects of the active blocks
-	    at constant intervals. They should fit in a few packets.
-      - The client keeps track of what blocks at the moment are
-	    having active objects in them.
-      - All blocks going in and out of the active buffer are recorded.
-	    - For outgoing blocks, objects are removed from the blocks
-		  and from the scene
-	    - For incoming blocks, objects are added to the blocks and
-		  to the scene.
-
-TODO: Server side:
       - A "near blocks" buffer, in which some nearby blocks are stored.
 	  - For all blocks in the buffer, objects are stepped(). This
 	    means they are active.
-      - All blocks going in and out of the buffer are recorded.
+      - TODO All blocks going in and out of the buffer are recorded.
-	    - For outgoing blocks, a timestamp is written.
+	    - TODO For outgoing blocks, a timestamp is written.
-	    - For incoming blocks, the time difference is calculated and
+	    - TODO For incoming blocks, the time difference is calculated and
 	      objects are stepped according to it.
+TODO: A timestamp to blocks
 
 TODO: Add config parameters for server's sending and generating distance
 
-TODO: Make amount of trees and other plants configurable
-      - Save to a metafile
-
 TODO: Copy the text of the last picked sign to inventory in creative
       mode
 
 TODO: Untie client network operations from framerate
 
-TODO: Make a copy of close-range environment on client for showing
+SUGG: Make a copy of close-range environment on client for showing
       on screen, with minimal mutexes to slow the main loop down
 
-TODO: Make a PACKET_COMBINED which contains many subpackets. Utilize
+SUGG: Make a PACKET_COMBINED which contains many subpackets. Utilize
       it by sending more stuff in a single packet.
+	  - Add a packet queue to RemoteClient, from which packets will be
+	    combined with object data packets
+		- This is not exactly trivial: the object data packets are
+		  sometimes very big by themselves
+
+SUGG: Split MapBlockObject serialization to to-client and to-disk
+      - This will allow saving ages of rats on disk but not sending
+	    them to clients
+
+TODO: Fix the long-lived Server Block Emerge Jam bug
+      - Is it related to the client deleting blocks?
 
 Doing now:
 ======================================================================
@@ -261,10 +274,6 @@ video::SMaterial g_materials[MATERIALS_COUNT];
 // All range-related stuff below is locked behind this
 JMutex g_range_mutex;
 
-// Blocks are generated in this range from the player
-// This is limited vertically to half by Client::fetchBlocks()
-s16 g_forcedfetch_range_nodes = FORCEDFETCH_RANGE;
-
 // Blocks are viewed in this range from the player
 s16 g_viewing_range_nodes = 60;
 
@@ -305,7 +314,10 @@ float g_client_delete_unused_sectors_timeout = 1200;
 
 // Server stuff
 bool g_creative_mode = false;
-MapgenParams g_mapgen_params;
+HMParams g_hm_params;
+MapParams g_map_params;
+float g_objectdata_interval = 0.2;
+u16 g_active_object_range = 2;
 
 /*
 	Random stuff
@@ -395,21 +407,11 @@ bool parseConfigObject(std::istream &is)
 	}
 	else if(name == "viewing_range_nodes_max")
 	{
-		s32 v = atoi(value.c_str());
+		g_viewing_range_nodes_max = stoi(value, 0, 32767);
-		if(v < 0)
-			v = 0;
-		if(v > 32767)
-			v = 32767;
-		g_viewing_range_nodes_max = v;
 	}
 	else if(name == "viewing_range_nodes_min")
 	{
-		s32 v = atoi(value.c_str());
+		g_viewing_range_nodes_min = stoi(value, 0, 32767);
-		if(v < 0)
-			v = 0;
-		if(v > 32767)
-			v = 32767;
-		g_viewing_range_nodes_min = v;
 	}
 	else if(name=="screenW")
 		g_screenW = value;
@@ -439,19 +441,29 @@ bool parseConfigObject(std::istream &is)
 	{
 		s32 d = atoi(value.c_str());
 		if(d > 0 && (d & (d-1)) == 0)
-			g_mapgen_params.heightmap_blocksize = d;
+			g_hm_params.heightmap_blocksize = d;
 		else
 			dstream<<"Invalid value in config file: \""
 					<<line<<"\""<<std::endl;
 	}
 	else if(name == "mapgen_height_randmax")
-		g_mapgen_params.height_randmax = value;
+		g_hm_params.height_randmax = value;
 	else if(name == "mapgen_height_randfactor")
-		g_mapgen_params.height_randfactor = value;
+		g_hm_params.height_randfactor = value;
 	else if(name == "mapgen_height_base")
-		g_mapgen_params.height_base = value;
+		g_hm_params.height_base = value;
 	else if(name == "mapgen_plants_amount")
-		g_mapgen_params.plants_amount = value;
+	{
+		std::istringstream vis(value);
+		vis>>g_map_params.plants_amount;
+	}
+	else if(name == "objectdata_inverval")
+	{
+		std::istringstream vis(value);
+		vis>>g_objectdata_interval;
+	}
+	else if(name == "active_object_range")
+		g_active_object_range = stoi(value, 0, 65535);
 	
 	else
 	{
@@ -1161,7 +1173,9 @@ int main(int argc, char *argv[])
 		std::cout<<"========================"<<std::endl;
 		std::cout<<std::endl;
 
-		Server server("../map", g_creative_mode, g_mapgen_params);
+		Server server("../map", g_creative_mode, g_hm_params,
+				g_map_params, g_objectdata_interval,
+				g_active_object_range);
 		server.start(port);
 	
 		for(;;)
@@ -1429,7 +1443,9 @@ int main(int argc, char *argv[])
 	*/
 	SharedPtr<Server> server;
 	if(hosting){
-		server = new Server("../map", g_creative_mode, g_mapgen_params);
+		server = new Server("../map", g_creative_mode, g_hm_params,
+				g_map_params, g_objectdata_interval,
+				g_active_object_range);
 		server->start(port);
 	}
 	

src/main.h

@@ -12,7 +12,6 @@ extern std::string getTimestamp();
 #include <jmutex.h>
 
 extern JMutex g_range_mutex;
-extern s16 g_forcedfetch_range_nodes;
 extern s16 g_viewing_range_nodes;
 //extern s16 g_actual_viewing_range_nodes;
 extern bool g_viewing_range_all;
@@ -42,9 +41,5 @@ extern video::SMaterial g_materials[MATERIALS_COUNT];
 
 extern IrrlichtDevice *g_device;
 
-// Settings
-#include "map.h"
-extern MapgenParams g_mapgen_params;
-
 #endif
 

src/map.cpp

@@ -1160,7 +1160,7 @@ void Map::PrintInfo(std::ostream &out)
 	ServerMap
 */
 
-ServerMap::ServerMap(std::string savedir, MapgenParams params):
+ServerMap::ServerMap(std::string savedir, HMParams hmp, MapParams mp):
 	Map(dout_server),
 	m_heightmap(NULL)
 {
@@ -1213,14 +1213,18 @@ ServerMap::ServerMap(std::string savedir, MapgenParams params):
 
 	dstream<<DTIME<<"Initializing new map."<<std::endl;
 	
+	// Create master heightmap
 	ValueGenerator *maxgen =
-			ValueGenerator::deSerialize(params.height_randmax);
+			ValueGenerator::deSerialize(hmp.height_randmax);
 	ValueGenerator *factorgen =
-			ValueGenerator::deSerialize(params.height_randfactor);
+			ValueGenerator::deSerialize(hmp.height_randfactor);
 	ValueGenerator *basegen =
-			ValueGenerator::deSerialize(params.height_base);
+			ValueGenerator::deSerialize(hmp.height_base);
 	m_heightmap = new UnlimitedHeightmap
-			(params.heightmap_blocksize, maxgen, factorgen, basegen);
+			(hmp.heightmap_blocksize, maxgen, factorgen, basegen);
+	
+	// Set map parameters
+	m_params = mp;
 	
 	// Create zero sector
 	emergeSector(v2s16(0,0));
@@ -1386,7 +1390,7 @@ MapSector * ServerMap::emergeSector(v2s16 p2d)
 	{
 		// Avgslope is the derivative of a hill
 		float t = avgslope * avgslope;
-		float a = MAP_BLOCKSIZE * 2;
+		float a = MAP_BLOCKSIZE * 2 * m_params.plants_amount;
 		u32 tree_max;
 		if(t > 0.03)
 			tree_max = a / (t/0.03);
@@ -1408,7 +1412,7 @@ MapSector * ServerMap::emergeSector(v2s16 p2d)
 	{
 		// Pitness usually goes at around -0.5...0.5
 		u32 bush_max = 0;
-		u32 a = MAP_BLOCKSIZE * 3;
+		u32 a = MAP_BLOCKSIZE * 3.0 * m_params.plants_amount;
 		if(pitness > 0)
 			bush_max = (pitness*a*4);
 		if(bush_max > a)

src/map.h

@@ -242,21 +242,32 @@ public:
 	virtual void PrintInfo(std::ostream &out);
 };
 
-struct MapgenParams
+// Master heightmap parameters
+struct HMParams
 {
-	MapgenParams()
+	HMParams()
 	{
 		heightmap_blocksize = 64;
 		height_randmax = "constant 70.0";
 		height_randfactor = "constant 0.6";
 		height_base = "linear 0 80 0";
-		plants_amount = "1.0";
 	}
 	s16 heightmap_blocksize;
 	std::string height_randmax;
 	std::string height_randfactor;
 	std::string height_base;
-	std::string plants_amount;
+};
+
+// Map parameters
+struct MapParams
+{
+	MapParams()
+	{
+		plants_amount = 1.0;
+		//max_objects_in_block = 30;
+	}
+	float plants_amount;
+	//u16 max_objects_in_block;
 };
 
 class ServerMap : public Map
@@ -265,7 +276,7 @@ public:
 	/*
 		savedir: directory to which map data should be saved
 	*/
-	ServerMap(std::string savedir, MapgenParams params);
+	ServerMap(std::string savedir, HMParams hmp, MapParams mp);
 	~ServerMap();
 
 	s32 mapType() const
@@ -346,6 +357,8 @@ public:
 
 private:
 	UnlimitedHeightmap *m_heightmap;
+	MapParams m_params;
+
 	std::string m_savedir;
 	bool m_map_saving_enabled;
 };

src/mapblock.h

@@ -352,6 +352,11 @@ public:
 		m_objects.getObjects(origin, max_d, dest);
 	}
 
+	s32 getObjectCount()
+	{
+		return m_objects.getCount();
+	}
+
 private:
 
 	/*

src/mapblockobject.h

@@ -880,6 +880,12 @@ public:
 	void getObjects(v3f origin, f32 max_d,
 			core::array<DistanceSortedObject> &dest);
 	
+	// Number of objects
+	s32 getCount()
+	{
+		return m_objects.size();
+	}
+
 private:
 	JMutex m_mutex;
 	// Key is id

src/server.cpp

@@ -284,56 +284,8 @@ void RemoteClient::SendBlocks(Server *server, float dtime)
 	v3s16 center = getNodeBlockPos(center_nodepos);
 
 	/*
-		Find out what block the player is going to next and set
+		Get the starting value of the block finder radius.
-		center to it.
-
-		Don't react to speeds under the initial value of highest_speed
 	*/
-	/*f32 highest_speed = 0.1 * BS;
-	v3s16 dir(0,0,0);
-	if(abs(playerspeed.X) > highest_speed)
-	{
-		highest_speed = playerspeed.X;
-		if(playerspeed.X > 0)
-			dir = v3s16(1,0,0);
-		else
-			dir = v3s16(-1,0,0);
-	}
-	if(abs(playerspeed.Y) > highest_speed)
-	{
-		highest_speed = playerspeed.Y;
-		if(playerspeed.Y > 0)
-			dir = v3s16(0,1,0);
-		else
-			dir = v3s16(0,-1,0);
-	}
-	if(abs(playerspeed.Z) > highest_speed)
-	{
-		highest_speed = playerspeed.Z;
-		if(playerspeed.Z > 0)
-			dir = v3s16(0,0,1);
-		else
-			dir = v3s16(0,0,-1);
-	}
-
-	center += dir;*/
-	
-	/*
-		Calculate the starting value of the block finder radius.
-
-		The radius shall be the last used value minus the
-		maximum moved distance.
-	*/
-	/*s16 d_start = m_last_block_find_d;
-	if(max_moved >= d_start)
-	{
-		d_start = 0;
-	}
-	else
-	{
-		d_start -= max_moved;
-	}*/
-	
 	s16 last_nearest_unsent_d;
 	s16 d_start;
 	{
@@ -382,10 +334,6 @@ void RemoteClient::SendBlocks(Server *server, float dtime)
 	
 	/*
 		TODO: Get this from somewhere
-		TODO: Values more than 7 make placing and removing blocks very
-		      sluggish when the map is being generated. This is
-			  because d is looped every time from 0 to d_max if no
-			  blocks are found for sending.
 	*/
 	//s16 d_max = 7;
 	s16 d_max = 8;
@@ -659,6 +607,10 @@ void RemoteClient::SendObjectData(
 		in memory):
 		- Set blocks changed
 		- Add blocks to emerge queue if they are not found
+
+		SUGGESTION: These could be ignored from the backside of the player
+
+		TODO: Keep track of total size of packet and stop when it is too big
 	*/
 
 	Player *player = server->m_env.getPlayer(peer_id);
@@ -669,9 +621,14 @@ void RemoteClient::SendObjectData(
 	v3s16 center_nodepos = floatToInt(playerpos);
 	v3s16 center = getNodeBlockPos(center_nodepos);
 
-	s16 d_max = ACTIVE_OBJECT_D_BLOCKS;
+	//s16 d_max = ACTIVE_OBJECT_D_BLOCKS;
+	s16 d_max = server->m_active_object_range;
 	
-	core::map<v3s16, MapBlock*> blocks;
+	// Number of blocks whose objects were written to bos
+	u16 blockcount = 0;
+
+	//core::map<v3s16, MapBlock*> blocks;
+	std::ostringstream bos(std::ios_base::binary);
 
 	for(s16 d = 0; d <= d_max; d++)
 	{
@@ -692,12 +649,17 @@ void RemoteClient::SendObjectData(
 					continue;
 			}
 			
+			// Try stepping block and add it to a send queue
 			try
 			{
 
 			// Get block
 			MapBlock *block = server->m_env.getMap().getBlockNoCreate(p);
 
+			// Skip block if there are no objects
+			if(block->getObjectCount() == 0)
+				continue;
+			
 			// Step block if not in stepped_blocks and add to stepped_blocks
 			if(stepped_blocks.find(p) == NULL)
 			{
@@ -706,8 +668,27 @@ void RemoteClient::SendObjectData(
 				block->setChangedFlag();
 			}
 
-			// Add block to queue
+			/*
-			blocks.insert(p, block);
+				Write objects
+			*/
+
+			// Write blockpos
+			writeV3S16(buf, p);
+			bos.write((char*)buf, 6);
+
+			// Write objects
+			block->serializeObjects(bos, serialization_version);
+
+			blockcount++;
+
+			/*
+				Stop collecting objects if data is already too big
+			*/
+			// Sum of player and object data sizes
+			s32 sum = (s32)os.tellp() + 2 + (s32)bos.tellp();
+			// break out if data too big
+			if(sum > MAX_OBJECTDATA_SIZE)
+				d = d_max+1;
 			
 			} //try
 			catch(InvalidPositionException &e)
@@ -729,12 +710,11 @@ void RemoteClient::SendObjectData(
 		}
 	}
 
+#if 0
 	/*
 		Write objects
 	*/
 
-	u16 blockcount = blocks.size();
-
 	// Write block count
 	writeU16(buf, blockcount);
 	os.write((char*)buf, 2);
@@ -751,11 +731,21 @@ void RemoteClient::SendObjectData(
 		MapBlock *block = i.getNode()->getValue();
 		block->serializeObjects(os, serialization_version);
 	}
+#endif
+
+	// Write block count
+	writeU16(buf, blockcount);
+	os.write((char*)buf, 2);
+
+	// Write block objects
+	os<<bos.str();
 
 	/*
 		Send data
 	*/
 	
+	//dstream<<"Server: Sending object data to "<<peer_id<<std::endl;
+
 	// Make data buffer
 	std::string s = os.str();
 	SharedBuffer<u8> data((u8*)s.c_str(), s.size());
@@ -898,13 +888,18 @@ u32 PIChecksum(core::list<PlayerInfo> &l)
 Server::Server(
 		std::string mapsavedir,
 		bool creative_mode,
-		MapgenParams mapgen_params
+		HMParams hm_params,
+		MapParams map_params,
+		float objectdata_interval,
+		u16 active_object_range
 	):
-	m_env(new ServerMap(mapsavedir, mapgen_params), dout_server),
+	m_env(new ServerMap(mapsavedir, hm_params, map_params), dout_server),
 	m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
 	m_thread(this),
 	m_emergethread(this),
-	m_creative_mode(creative_mode)
+	m_creative_mode(creative_mode),
+	m_objectdata_interval(objectdata_interval),
+	m_active_object_range(active_object_range)
 {
 	m_env_mutex.Init();
 	m_con_mutex.Init();
@@ -980,6 +975,7 @@ void Server::step(float dtime)
 void Server::AsyncRunStep()
 {
 	DSTACK(__FUNCTION_NAME);
+	
 	float dtime;
 	{
 		JMutexAutoLock lock1(m_step_dtime_mutex);
@@ -1033,7 +1029,7 @@ void Server::AsyncRunStep()
 
 	// Run time- and client- related stuff
 	// NOTE: If you intend to add something here, check that it
-	// doesn't fit in RemoteClient::SendBlocks for exampel.
+	// doesn't fit in RemoteClient::SendBlocks for example.
 	/*{
 		// Clients are behind connection lock
 		JMutexAutoLock lock(m_con_mutex);
@@ -1055,8 +1051,7 @@ void Server::AsyncRunStep()
 	{
 		static float counter = 0.0;
 		counter += dtime;
-		//TODO: Get value from somewhere
+		if(counter >= m_objectdata_interval)
-		if(counter >= 0.1)
 		{
 			JMutexAutoLock lock1(m_env_mutex);
 			JMutexAutoLock lock2(m_con_mutex);
@@ -1930,12 +1925,12 @@ void Server::peerAdded(con::Peer *peer)
 				bool r = player->inventory.addItem(item);
 				assert(r == true);
 			}
-			// Rat
+			/*// Rat
 			{
 				InventoryItem *item = new MapBlockObjectItem("Rat");
 				bool r = player->inventory.addItem(item);
 				assert(r == true);
-			}
+			}*/
 		}
 		else
 		{

src/server.h

@@ -201,6 +201,28 @@ struct PlayerInfo
 
 u32 PIChecksum(core::list<PlayerInfo> &l);
 
+/*
+	Used for queueing and sorting block transfers in containers
+	
+	Lower priority number means higher priority.
+*/
+struct PrioritySortedBlockTransfer
+{
+	PrioritySortedBlockTransfer(float a_priority, v3s16 a_pos, u16 a_dest_peer)
+	{
+		priority = a_priority;
+		pos = a_pos;
+		dest_peer = a_dest_peer;
+	}
+	bool operator < (PrioritySortedBlockTransfer &other)
+	{
+		return priority < other.priority;
+	}
+	float priority;
+	v3s16 pos;
+	u16 a_dest_peer;
+};
+
 class RemoteClient
 {
 public:
@@ -252,6 +274,8 @@ public:
 	void BlockEmerged();
 	
 	// Increments timeouts and removes timed-out blocks from list
+	// NOTE: This doesn't fix the server-not-sending-block bug
+	//       because it is related to emerging, not sending.
 	//void RunSendingTimeouts(float dtime, float timeout);
 
 	void PrintInfo(std::ostream &o)
@@ -310,6 +334,15 @@ private:
 	JMutex m_blocks_sending_mutex;
 };
 
+/*struct ServerSettings
+{
+	ServerSettings()
+	{
+		creative_mode = false;
+	}
+	bool creative_mode;
+};*/
+
 class Server : public con::PeerHandler
 {
 public:
@@ -319,7 +352,10 @@ public:
 	Server(
 			std::string mapsavedir,
 			bool creative_mode,
-			MapgenParams mapgen_params
+			HMParams hm_params,
+			MapParams map_params,
+			float objectdata_inverval,
+			u16 active_object_range
 		);
 	~Server();
 	void start(unsigned short port);
@@ -378,7 +414,10 @@ private:
 
 	BlockEmergeQueue m_emerge_queue;
 	
+	// Settings
 	bool m_creative_mode;
+	float m_objectdata_interval;
+	u16 m_active_object_range;
 
 	friend class EmergeThread;
 	friend class RemoteClient;

src/utility.h

@@ -603,5 +603,15 @@ inline bool is_yes(std::string s)
 	return false;
 }
 
+inline s32 stoi(std::string s, s32 min, s32 max)
+{
+	s32 i = atoi(s.c_str());
+	if(i < min)
+		i = min;
+	if(i > max)
+		i = max;
+	return i;
+}
+
 #endif