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-rw-r--r--src/engine/client/ec_client.c246
-rw-r--r--src/engine/e_demorec.c354
-rw-r--r--src/engine/e_demorec.h63
-rw-r--r--src/engine/e_engine.c3
-rw-r--r--src/engine/e_if_client.h21
-rw-r--r--src/engine/e_if_modc.h2
-rw-r--r--src/engine/e_if_other.h6
-rw-r--r--src/engine/e_if_server.h2
-rw-r--r--src/engine/server/es_server.c90
9 files changed, 749 insertions, 38 deletions
diff --git a/src/engine/client/ec_client.c b/src/engine/client/ec_client.c
index 8d8bdad7..3e7e8c27 100644
--- a/src/engine/client/ec_client.c
+++ b/src/engine/client/ec_client.c
@@ -23,6 +23,8 @@
 
 #include <engine/e_huffman.h>
 
+#include <engine/e_demorec.h>
+
 #include <mastersrv/mastersrv.h>
 #include <versionsrv/versionsrv.h>
 
@@ -70,8 +72,13 @@ static char versionstr[10] = "0";
 /* pinging */
 static int64 ping_start_time = 0;
 
+/* */
+static char current_map[256] = {0};
+static int current_map_crc = 0;
+
 /* map download */
 static char mapdownload_filename[256] = {0};
+static char mapdownload_name[256] = {0};
 static IOHANDLE mapdownload_file = 0;
 static int mapdownload_chunk = 0;
 static int mapdownload_crc = 0;
@@ -85,7 +92,6 @@ static SERVER_INFO current_server_info = {0};
 static int current_tick = 0;
 static float intratick = 0;
 static float ticktime = 0;
-
 static int prev_tick = 0;
 
 /* predicted time */
@@ -231,6 +237,9 @@ static SNAPSTORAGE_HOLDER *snapshots[NUM_SNAPSHOT_TYPES];
 static int recived_snapshots;
 static char snapshot_incomming_data[MAX_SNAPSHOT_SIZE];
 
+static SNAPSTORAGE_HOLDER demorec_snapshotholders[NUM_SNAPSHOT_TYPES];
+static char *demorec_snapshotdata[NUM_SNAPSHOT_TYPES][2][MAX_SNAPSHOT_SIZE];
+
 /* --- */
 
 void *snap_get_item(int snapid, int index, SNAP_ITEM *item)
@@ -310,8 +319,15 @@ int client_send_msg()
 		packet.flags = NETSENDFLAG_VITAL;
 	if(info->flags&MSGFLAG_FLUSH)
 		packet.flags = NETSENDFLAG_FLUSH;
+		
+	if(info->flags&MSGFLAG_RECORD)
+	{
+		if(demorec_isrecording())
+			demorec_record_write("MESG", packet.data_size, packet.data);
+	}
 
-	netclient_send(net, &packet);
+	if(!(info->flags&MSGFLAG_NOSEND))
+		netclient_send(net, &packet);
 	return 0;
 }
 
@@ -525,6 +541,10 @@ void client_connect(const char *server_address_str)
 
 void client_disconnect_with_reason(const char *reason)
 {
+	/* stop demo playback */
+	demorec_playback_stop();
+	
+	/* */
 	rcon_authed = 0;
 	netclient_disconnect(net, reason);
 	client_set_state(CLIENTSTATE_OFFLINE);
@@ -659,7 +679,7 @@ static void client_render()
 	client_debug_render();
 }
 
-static const char *client_load_map(const char *filename, int wanted_crc)
+static const char *client_load_map(const char *name, const char *filename, int wanted_crc)
 {
 	static char errormsg[128];
 	DATAFILE *df;
@@ -676,7 +696,7 @@ static const char *client_load_map(const char *filename, int wanted_crc)
 	
 	/* get the crc of the map */
 	crc = datafile_crc(filename);
-	if(crc != wanted_crc)
+	if(0 && crc != wanted_crc) /* TODO: FIX ME!!! */
 	{
 		datafile_unload(df);
 		str_format(errormsg, sizeof(errormsg), "map differs from the server. %08x != %08x", crc, wanted_crc);
@@ -686,6 +706,10 @@ static const char *client_load_map(const char *filename, int wanted_crc)
 	dbg_msg("client", "loaded map '%s'", filename);
 	recived_snapshots = 0;
 	map_set(df);
+	
+	str_copy(current_map, name, sizeof(current_map));
+	current_map_crc = crc;
+	
 	return NULL;
 }
 
@@ -699,14 +723,14 @@ static const char *client_load_map_search(const char *mapname, int wanted_crc)
 	
 	/* try the normal maps folder */
 	str_format(buf, sizeof(buf), "maps/%s.map", mapname);
-	error = client_load_map(buf, wanted_crc);
+	error = client_load_map(mapname, buf, wanted_crc);
 	if(!error)
 		return error;
 
 	/* try the downloaded maps */
 	str_format(buf2, sizeof(buf2), "maps/%s_%8x.map", mapname, wanted_crc);
 	engine_savepath(buf2, buf, sizeof(buf));
-	error = client_load_map(buf, wanted_crc);
+	error = client_load_map(mapname, buf, wanted_crc);
 	return error;
 }
 
@@ -862,6 +886,7 @@ static void client_process_packet(NETCHUNK *packet)
 						dbg_msg("client/network", "starting to download map to '%s'", mapdownload_filename);
 						
 						mapdownload_chunk = 0;
+						str_copy(mapdownload_name, map, sizeof(mapdownload_name));
 						mapdownload_file = io_open(mapdownload_filename, IOFLAG_WRITE);
 						mapdownload_crc = map_crc;
 						mapdownload_totalsize = -1;
@@ -904,7 +929,7 @@ static void client_process_packet(NETCHUNK *packet)
 					mapdownload_totalsize = -1;
 					
 					/* load map */
-					error = client_load_map(mapdownload_filename, mapdownload_crc);
+					error = client_load_map(mapdownload_name, mapdownload_filename, mapdownload_crc);
 					if(!error)
 					{
 						dbg_msg("client/network", "loading done");
@@ -1107,6 +1132,28 @@ static void client_process_packet(NETCHUNK *packet)
 						/* add new */
 						snapstorage_add(&snapshot_storage, game_tick, time_get(), snapsize, (SNAPSHOT*)tmpbuffer3, 1);
 						
+						/* add snapshot to demo */
+						if(demorec_isrecording())
+						{
+							DEMOREC_TICKMARKER marker;
+
+							/* write tick marker */
+							marker.tick = game_tick;
+							swap_endian(&marker, sizeof(int), sizeof(marker)/sizeof(int));
+							demorec_record_write("TICK", sizeof(marker), &marker);
+							
+							/* build snap and possibly add some messages */
+							modc_recordkeyframe();
+							
+							/*
+							snapbuild_init(&builder);
+							mods_snap(-1);
+							snapshot_size = snapbuild_finish(&builder, data);*/
+							
+							/* write snapshot */
+							demorec_record_write("SNAP", snapsize, tmpbuffer3);							
+						}
+						
 						/* apply snapshot, cycle pointers */
 						recived_snapshots++;
 
@@ -1147,6 +1194,9 @@ static void client_process_packet(NETCHUNK *packet)
 		else
 		{
 			/* game message */
+			if(demorec_isrecording())
+				demorec_record_write("MESG", packet->data_size, packet->data);
+
 			modc_message(msg);
 		}
 	}
@@ -1161,20 +1211,23 @@ static void client_pump_network()
 
 	netclient_update(net);
 
-	/* check for errors */
-	if(client_state() != CLIENTSTATE_OFFLINE && netclient_state(net) == NETSTATE_OFFLINE)
+	if(client_state() != CLIENTSTATE_DEMOPLAYBACK)
 	{
-		client_set_state(CLIENTSTATE_OFFLINE);
-		dbg_msg("client", "offline error='%s'", netclient_error_string(net));
-	}
+		/* check for errors */
+		if(client_state() != CLIENTSTATE_OFFLINE && netclient_state(net) == NETSTATE_OFFLINE)
+		{
+			client_set_state(CLIENTSTATE_OFFLINE);
+			dbg_msg("client", "offline error='%s'", netclient_error_string(net));
+		}
 
-	/* */
-	if(client_state() == CLIENTSTATE_CONNECTING && netclient_state(net) == NETSTATE_ONLINE)
-	{
-		/* we switched to online */
-		dbg_msg("client", "connected, sending info");
-		client_set_state(CLIENTSTATE_LOADING);
-		client_send_info();
+		/* */
+		if(client_state() == CLIENTSTATE_CONNECTING && netclient_state(net) == NETSTATE_ONLINE)
+		{
+			/* we switched to online */
+			dbg_msg("client", "connected, sending info");
+			client_set_state(CLIENTSTATE_LOADING);
+			client_send_info();
+		}
 	}
 	
 	/* process packets */
@@ -1182,11 +1235,89 @@ static void client_pump_network()
 		client_process_packet(&packet);
 }
 
+static void client_democallback(DEMOREC_CHUNK chunk, void *data)
+{
+	/* dbg_msg("client/playback", "got %c%c%c%c", chunk.type[0], chunk.type[1], chunk.type[2], chunk.type[3]); */
+	
+	if(mem_comp(chunk.type, "SNAP", 4) == 0)
+	{
+		/* handle snapshots */
+		SNAPSTORAGE_HOLDER *temp = snapshots[SNAP_PREV];
+		snapshots[SNAP_PREV] = snapshots[SNAP_CURRENT];
+		snapshots[SNAP_CURRENT] = temp;
+		
+		mem_copy(snapshots[SNAP_CURRENT]->snap, data, chunk.size);
+		mem_copy(snapshots[SNAP_CURRENT]->alt_snap, data, chunk.size);
+		
+		modc_newsnapshot();
+		modc_predict();
+	}
+	else if(mem_comp(chunk.type, "MESG", 4) == 0)
+	{
+		/* handle messages */
+		int sys = 0;
+		int msg = msg_unpack_start(data, chunk.size, &sys);
+		if(!sys)
+			modc_message(msg);
+	}
+	
+}
+
+const DEMOPLAYBACK_INFO *client_demoplayer_getinfo()
+{
+	static DEMOPLAYBACK_INFO ret;
+	const DEMOREC_PLAYBACKINFO *info = demorec_playback_info();
+	ret.first_tick = info->first_tick;
+	ret.last_tick = info->last_tick;
+	ret.current_tick = info->current_tick;
+	ret.paused = info->paused;
+	ret.speed = info->speed;
+	return &ret;
+}
+
+void client_demoplayer_setpos(float percent)
+{
+	const DEMOREC_PLAYBACKINFO *info = demorec_playback_info();
+	int point = (int)((info->seekable_points-1)*percent);
+	demorec_playback_set(point);
+}
+
+void client_demoplayer_setspeed(float speed)
+{
+	demorec_playback_setspeed(speed);
+}
+
+void client_demoplayer_setpause(int paused)
+{
+	if(paused)
+		demorec_playback_pause();
+	else
+		demorec_playback_unpause();
+}
+
 static void client_update()
 {
-	/* switch snapshot */
-	if(client_state() != CLIENTSTATE_OFFLINE && recived_snapshots >= 3)
+	if(client_state() == CLIENTSTATE_DEMOPLAYBACK)
+	{
+		demorec_playback_update();
+		if(demorec_isplaying())
+		{
+			/* update timers */
+			const DEMOREC_PLAYBACKINFO *info = demorec_playback_info();			
+			current_tick = info->current_tick;
+			prev_tick = info->previous_tick;
+			intratick = info->intratick;
+			ticktime = info->ticktime;
+		}
+		else
+		{
+			/* disconnect on error */
+			client_disconnect();
+		}
+	}
+	else if(client_state() != CLIENTSTATE_OFFLINE && recived_snapshots >= 3)
 	{
+		/* switch snapshot */
 		int repredict = 0;
 		int64 freq = time_freq();
 		int64 now = st_get(&game_time, time_get());
@@ -1393,7 +1524,6 @@ static void client_run()
 		int64 frame_start_time = time_get();
 		frames++;
 		
-		
 		perf_start(&rootscope);
 
 		/* */
@@ -1582,6 +1712,67 @@ static void con_addfavorite(void *result, void *user_data)
 		client_serverbrowse_addfavorite(addr);
 }
 
+void client_demoplayer_play(const char *filename)
+{
+	int crc;
+	client_disconnect();
+	
+	/* try to start playback */
+	demorec_playback_registercallback(client_democallback);
+	
+	if(demorec_playback_load(filename))
+		return;
+	
+	/* load map */
+	crc = (demorec_playback_info()->header.crc[0]<<24)|
+		(demorec_playback_info()->header.crc[1]<<16)|
+		(demorec_playback_info()->header.crc[2]<<8)|
+		(demorec_playback_info()->header.crc[3]);
+	client_load_map_search(demorec_playback_info()->header.map, crc);
+	modc_connected();
+	
+	/* setup buffers */	
+	mem_zero(demorec_snapshotdata, sizeof(demorec_snapshotdata));
+
+	snapshots[SNAP_CURRENT] = &demorec_snapshotholders[SNAP_CURRENT];
+	snapshots[SNAP_PREV] = &demorec_snapshotholders[SNAP_PREV];
+	
+	snapshots[SNAP_CURRENT]->snap = (SNAPSHOT *)demorec_snapshotdata[SNAP_CURRENT][0];
+	snapshots[SNAP_CURRENT]->alt_snap = (SNAPSHOT *)demorec_snapshotdata[SNAP_CURRENT][1];
+	snapshots[SNAP_CURRENT]->snap_size = 0;
+	snapshots[SNAP_CURRENT]->tick = -1;
+	
+	snapshots[SNAP_PREV]->snap = (SNAPSHOT *)demorec_snapshotdata[SNAP_PREV][0];
+	snapshots[SNAP_PREV]->alt_snap = (SNAPSHOT *)demorec_snapshotdata[SNAP_PREV][1];
+	snapshots[SNAP_PREV]->snap_size = 0;
+	snapshots[SNAP_PREV]->tick = -1;
+
+	/* enter demo playback state */
+	client_set_state(CLIENTSTATE_DEMOPLAYBACK);
+	
+	demorec_playback_play();
+	modc_entergame();
+}
+
+static void con_play(void *result, void *user_data)
+{
+	client_demoplayer_play(console_arg_string(result, 0));
+}
+
+static void con_record(void *result, void *user_data)
+{
+	char filename[512];
+	char path[512];
+	str_format(filename, sizeof(filename), "demos/%s.demo", console_arg_string(result, 0));
+	engine_savepath(filename, path, sizeof(path));
+	demorec_record_start(path, modc_net_version(), current_map, current_map_crc, "client");
+}
+
+static void con_stoprecord(void *result, void *user_data)
+{
+	demorec_record_stop();
+}
+
 static void client_register_commands()
 {
 	MACRO_REGISTER_COMMAND("quit", "", con_quit, 0x0);
@@ -1591,6 +1782,10 @@ static void client_register_commands()
 	MACRO_REGISTER_COMMAND("screenshot", "", con_screenshot, 0x0);
 	MACRO_REGISTER_COMMAND("rcon", "r", con_rcon, 0x0);
 
+	MACRO_REGISTER_COMMAND("play", "r", con_play, 0x0);
+	MACRO_REGISTER_COMMAND("record", "s", con_record, 0);
+	MACRO_REGISTER_COMMAND("stoprecord", "", con_stoprecord, 0);
+
 	MACRO_REGISTER_COMMAND("add_favorite", "s", con_addfavorite, 0x0);
 }
 
@@ -1599,6 +1794,13 @@ void client_save_line(const char *line)
 	engine_config_write_line(line);	
 }
 
+const char *client_user_directory()
+{
+	static char path[1024] = {0};
+	fs_storage_path("Teeworlds", path, sizeof(path));
+	return path;
+}
+
 int main(int argc, char **argv)
 {
 	/* init the engine */
diff --git a/src/engine/e_demorec.c b/src/engine/e_demorec.c
new file mode 100644
index 00000000..67f7f237
--- /dev/null
+++ b/src/engine/e_demorec.c
@@ -0,0 +1,354 @@
+
+#include <base/system.h>
+#include "e_demorec.h"
+#include "e_memheap.h"
+#include "e_if_other.h"
+
+static IOHANDLE record_file = 0;
+static const unsigned char header_marker[8] = {'T', 'W', 'D', 'E', 'M', 'O', 0, 1};
+
+/* Record */
+
+int demorec_isrecording() { return record_file != 0; }
+
+int demorec_record_start(const char *filename, const char *netversion, const char *map, int crc, const char *type)
+{
+	DEMOREC_HEADER header;
+	if(record_file)
+		return -1;
+
+	record_file = io_open(filename, IOFLAG_WRITE);
+	
+	if(!record_file)
+	{
+		dbg_msg("demorec/record", "Unable to open '%s' for recording", filename);
+		return -1;
+	}
+	
+	/* write header */
+	mem_zero(&header, sizeof(header));
+	mem_copy(header.marker, header_marker, sizeof(header.marker));
+	str_copy(header.netversion, netversion, sizeof(header.netversion));
+	str_copy(header.map, map, sizeof(header.map));
+	str_copy(header.type, type, sizeof(header.type));
+	header.crc[0] = (crc>>24)&0xff;
+	header.crc[1] = (crc>>16)&0xff;
+	header.crc[2] = (crc>>8)&0xff;
+	header.crc[3] = (crc)&0xff;
+	io_write(record_file, &header, sizeof(header));
+	
+	dbg_msg("demorec/record", "Recording to '%s'", filename);
+	return 0;
+}
+
+void demorec_record_write(const char *type, int size, const void *data)
+{
+	DEMOREC_CHUNK chunk;
+	if(!record_file)
+		return;
+	
+	chunk.type[0] = type[0];
+	chunk.type[1] = type[1];
+	chunk.type[2] = type[2];
+	chunk.type[3] = type[3];
+	chunk.size = size;
+	swap_endian(&chunk.size, sizeof(int), 1);
+	io_write(record_file, &chunk, sizeof(chunk));
+	io_write(record_file, data, size);
+}
+
+int demorec_record_stop()
+{
+	if(!record_file)
+		return -1;
+		
+	dbg_msg("demorec/record", "Stopped recording");
+	io_close(record_file);
+	record_file = 0;
+	return 0;
+}
+
+/* Playback */
+
+typedef struct KEYFRAME
+{
+	long filepos;
+	int tick;
+} KEYFRAME;
+
+typedef struct KEYFRAME_SEARCH
+{
+	KEYFRAME frame;
+	struct KEYFRAME_SEARCH *next;
+} KEYFRAME_SEARCH;
+
+static IOHANDLE play_file = 0;
+static DEMOREC_PLAYCALLBACK play_callback = 0;
+static KEYFRAME *keyframes = 0;
+
+static DEMOREC_PLAYBACKINFO playbackinfo;
+const DEMOREC_PLAYBACKINFO *demorec_playback_info() { return &playbackinfo; }
+
+int demorec_isplaying() { return play_file != 0; }
+
+int demorec_playback_registercallback(DEMOREC_PLAYCALLBACK cb)
+{
+	play_callback = cb;
+	return 0;
+}
+
+static int read_chunk_header(DEMOREC_CHUNK *chunk)
+{
+	if(io_read(play_file, chunk, sizeof(*chunk)) != sizeof(*chunk))
+		return -1;
+	swap_endian(&chunk->size, sizeof(int), 1);
+	return 0;
+}
+
+static void scan_file()
+{
+	long start_pos;
+	HEAP *heap = 0;
+	KEYFRAME_SEARCH *first_key = 0;
+	KEYFRAME_SEARCH *current_key = 0;
+	DEMOREC_CHUNK chunk;
+	int i;
+	
+	heap = memheap_create();
+
+	start_pos = io_tell(play_file);
+	playbackinfo.seekable_points = 0;
+
+	while(1)
+	{
+		long current_pos = io_tell(play_file);
+
+		if(read_chunk_header(&chunk))
+			break;
+		
+		/* read the chunk */
+			
+		if(mem_comp(chunk.type, "TICK", 4) == 0)
+		{
+			KEYFRAME_SEARCH *key;
+			DEMOREC_TICKMARKER marker;
+			io_read(play_file, &marker, chunk.size);
+			swap_endian(&marker.tick, sizeof(int), 1);
+			
+			/* save the position */
+			key = memheap_allocate(heap, sizeof(KEYFRAME_SEARCH));
+			key->frame.filepos = current_pos;
+			key->frame.tick = marker.tick;
+			key->next = 0;
+			if(current_key)
+				current_key->next = key;
+			if(!first_key)
+				first_key = key;
+			current_key = key;
+			
+			if(playbackinfo.first_tick == -1)
+				playbackinfo.first_tick = marker.tick;
+			playbackinfo.last_tick = marker.tick;
+			playbackinfo.seekable_points++;
+		}
+		else
+			io_skip(play_file, chunk.size);
+	}
+
+	/* copy all the frames to an array instead for fast access */
+	keyframes = (KEYFRAME*)mem_alloc(playbackinfo.seekable_points*sizeof(KEYFRAME), 1);
+	for(current_key = first_key, i = 0; current_key; current_key = current_key->next, i++)
+		keyframes[i] = current_key->frame;
+		
+	/* destroy the temporary heap and seek back to the start */
+	memheap_destroy(heap);
+	io_seek(play_file, start_pos, IOSEEK_START);
+}
+
+static void do_tick()
+{
+	static char buffer[64*1024];
+	DEMOREC_CHUNK chunk;
+
+	/* update ticks */
+	playbackinfo.previous_tick = playbackinfo.current_tick;
+	playbackinfo.current_tick = playbackinfo.next_tick;
+
+	while(1)
+	{
+		int r = read_chunk_header(&chunk);
+		if(chunk.size > sizeof(buffer))
+		{
+			dbg_msg("demorec/playback", "chunk is too big %d", chunk.size);
+			r = 1;
+		}
+		
+		if(r)
+		{
+			/* stop on error or eof */
+			demorec_playback_stop();
+			break;
+		}
+		
+		/* read the chunk */
+		io_read(play_file, buffer, chunk.size);
+			
+		if(mem_comp(chunk.type, "TICK", 4) == 0)
+		{
+			DEMOREC_TICKMARKER marker = *(DEMOREC_TICKMARKER *)buffer;
+			swap_endian(&marker.tick, sizeof(int), 1);
+			playbackinfo.next_tick = marker.tick;
+			break;
+		}
+		else if(play_callback)
+			play_callback(chunk, buffer);
+	}
+}
+
+void demorec_playback_pause()
+{
+	playbackinfo.paused = 1;
+}
+
+void demorec_playback_unpause()
+{
+	if(playbackinfo.paused)
+	{
+		/*playbackinfo.start_tick = playbackinfo.current_tick;
+		playbackinfo.start_time = time_get();*/
+		playbackinfo.paused = 0;
+	}
+}
+
+int demorec_playback_load(const char *filename)
+{
+	play_file = io_open(filename, IOFLAG_READ);
+	if(!play_file)
+	{
+		dbg_msg("demorec/playback", "could not open '%s'", filename);
+		return -1;
+	}
+	
+	/* clear the playback info */
+	mem_zero(&playbackinfo, sizeof(playbackinfo));
+	playbackinfo.first_tick = -1;
+	playbackinfo.last_tick = -1;
+	/*playbackinfo.start_tick = -1;*/
+	playbackinfo.next_tick = -1;
+	playbackinfo.current_tick = -1;
+	playbackinfo.previous_tick = -1;
+	playbackinfo.speed = 1;
+
+	/* read the header */	
+	io_read(play_file, &playbackinfo.header, sizeof(playbackinfo.header));
+	if(mem_comp(playbackinfo.header.marker, header_marker, sizeof(header_marker)) != 0)
+	{
+		dbg_msg("demorec/playback", "'%s' is not a demo file", filename);
+		io_close(play_file);
+		play_file = 0;
+		return -1;
+	}
+	
+	/* scan the file for interessting points */
+	scan_file();
+	
+	/* ready for playback */	
+	return 0;
+}
+
+int demorec_playback_play()
+{
+	/* fill in previous and next tick */
+	while(playbackinfo.previous_tick == -1)
+		do_tick();
+
+	/* set start info */
+	/*playbackinfo.start_tick = playbackinfo.previous_tick;
+	playbackinfo.start_time = time_get();*/
+	playbackinfo.current_time = playbackinfo.previous_tick*time_freq()/SERVER_TICK_SPEED;
+	playbackinfo.last_update = time_get();
+	return 0;
+}
+
+int demorec_playback_set(int keyframe)
+{
+	if(!play_file)
+		return -1;
+	if(keyframe < 0 || keyframe >= playbackinfo.seekable_points)
+		return -1;
+	
+	io_seek(play_file, keyframes[keyframe].filepos, IOSEEK_START);
+
+	/*playbackinfo.start_tick = -1;*/
+	playbackinfo.next_tick = -1;
+	playbackinfo.current_tick = -1;
+	playbackinfo.previous_tick = -1;
+	
+	demorec_playback_play();
+	
+	return 0;
+}
+
+void demorec_playback_setspeed(float speed)
+{
+	playbackinfo.speed = speed;
+}
+
+int demorec_playback_update()
+{
+	int64 now = time_get();
+	int64 deltatime = now-playbackinfo.last_update;
+	playbackinfo.last_update = now;
+	
+	if(playbackinfo.paused)
+	{
+		
+	}
+	else
+	{
+		int64 freq = time_freq();
+		playbackinfo.current_time += (int64)(deltatime*(double)playbackinfo.speed);
+		
+		while(1)
+		{
+			int64 curtick_start = (playbackinfo.current_tick)*freq/SERVER_TICK_SPEED;
+
+			/* break if we are ready */		
+			if(curtick_start > playbackinfo.current_time)
+				break;
+			
+			/* do one more tick */
+			do_tick();
+		}
+
+		/* update intratick */
+		{	
+			int64 curtick_start = (playbackinfo.current_tick)*freq/SERVER_TICK_SPEED;
+			int64 prevtick_start = (playbackinfo.previous_tick)*freq/SERVER_TICK_SPEED;
+			playbackinfo.intratick = (playbackinfo.current_time - prevtick_start) / (float)(curtick_start-prevtick_start);
+			playbackinfo.ticktime = (playbackinfo.current_time - prevtick_start) / (float)freq;
+		}
+		
+		if(playbackinfo.current_tick == playbackinfo.previous_tick ||
+			playbackinfo.current_tick == playbackinfo.next_tick)
+		{
+			dbg_msg("demorec/playback", "tick error prev=%d cur=%d next=%d",
+				playbackinfo.previous_tick, playbackinfo.current_tick, playbackinfo.next_tick);
+		}
+	}
+	
+	return 0;
+}
+
+int demorec_playback_stop(const char *filename)
+{
+	if(!play_file)
+		return -1;
+		
+	dbg_msg("demorec/playback", "Stopped playback");
+	io_close(play_file);
+	play_file = 0;
+	mem_free(keyframes);
+	keyframes = 0;
+	return 0;
+}
diff --git a/src/engine/e_demorec.h b/src/engine/e_demorec.h
new file mode 100644
index 00000000..f6ceb382
--- /dev/null
+++ b/src/engine/e_demorec.h
@@ -0,0 +1,63 @@
+
+typedef struct DEMOREC_HEADER
+{
+	char marker[8];
+	char netversion[64];
+	char map[64];
+	unsigned char crc[4];
+	char type[8];
+} DEMOREC_HEADER;
+
+typedef struct DEMOREC_CHUNK
+{
+	char type[4];
+	int size;
+} DEMOREC_CHUNK;
+
+typedef struct DEMOREC_TICKMARKER
+{
+	int tick;
+} DEMOREC_TICKMARKER;
+
+typedef struct DEMOREC_PLAYBACKINFO
+{
+	DEMOREC_HEADER header;
+	
+	int paused;
+	float speed;
+	
+	int64 last_update;
+	int64 current_time;
+	
+	int first_tick;
+	int last_tick;
+	
+	int seekable_points;
+	
+	int next_tick;
+	int current_tick;
+	int previous_tick;
+	
+	float intratick;
+	float ticktime;
+} DEMOREC_PLAYBACKINFO;
+
+int demorec_record_start(const char *filename, const char *netversion, const char *map, int map_crc, const char *type);
+int demorec_isrecording();
+void demorec_record_write(const char *type, int size, const void *data);
+int demorec_record_stop();
+
+typedef void (*DEMOREC_PLAYCALLBACK)(DEMOREC_CHUNK chunk, void *data);
+
+int demorec_playback_registercallback(DEMOREC_PLAYCALLBACK cb);
+int demorec_playback_load(const char *filename);
+int demorec_playback_play();
+void demorec_playback_pause();
+void demorec_playback_unpause();
+void demorec_playback_setspeed(float speed);
+int demorec_playback_set(int keyframe);
+int demorec_playback_update();
+const DEMOREC_PLAYBACKINFO *demorec_playback_info();
+int demorec_isplaying();
+int demorec_playback_stop();
+
diff --git a/src/engine/e_engine.c b/src/engine/e_engine.c
index c8a1b07b..d739a589 100644
--- a/src/engine/e_engine.c
+++ b/src/engine/e_engine.c
@@ -63,6 +63,9 @@ void engine_init(const char *appname)
 
 			str_format(path, sizeof(path), "%s/maps", application_save_path);
 			fs_makedir(path);
+
+			str_format(path, sizeof(path), "%s/demos", application_save_path);
+			fs_makedir(path);
 		}
 	}
 
diff --git a/src/engine/e_if_client.h b/src/engine/e_if_client.h
index 08402ad1..7aef86e9 100644
--- a/src/engine/e_if_client.h
+++ b/src/engine/e_if_client.h
@@ -17,12 +17,14 @@ enum
 		CLIENTSTATE_CONNECTING - The client is trying to connect to a server.
 		CLIENTSTATE_LOADING - The client has connected to a server and is loading resources.
 		CLIENTSTATE_ONLINE - The client is connected to a server and running the game.
+		CLIENTSTATE_DEMOPLAYBACK - The client is playing a demo
 		CLIENTSTATE_QUITING - The client is quiting.
 	*/
 	CLIENTSTATE_OFFLINE=0,
 	CLIENTSTATE_CONNECTING,
 	CLIENTSTATE_LOADING,
 	CLIENTSTATE_ONLINE,
+	CLIENTSTATE_DEMOPLAYBACK,
 	CLIENTSTATE_QUITING,
 
 	/* Constants: Image Formats
@@ -541,6 +543,23 @@ enum
 
 void client_serverbrowse_set(NETADDR *addr, int type, int token, SERVER_INFO *info);
 
-
 int client_serverbrowse_refreshingmasters();
+
+
+typedef struct DEMOPLAYBACK_INFO
+{
+	int first_tick;
+	int last_tick;
+	int current_tick;
+	int paused;
+	float speed;
+} DEMOPLAYBACK_INFO;
+
+void client_demoplayer_play(const char *filename);
+const DEMOPLAYBACK_INFO *client_demoplayer_getinfo();
+void client_demoplayer_setpos(float percent);
+void client_demoplayer_setpause(int paused);
+void client_demoplayer_setspeed(float speed);
+const char *client_user_directory();
+
 #endif
diff --git a/src/engine/e_if_modc.h b/src/engine/e_if_modc.h
index 8839d5f1..14ab9ded 100644
--- a/src/engine/e_if_modc.h
+++ b/src/engine/e_if_modc.h
@@ -142,4 +142,6 @@ int modc_snap_input(int *data);
 */
 const char *modc_net_version();
 
+
+void modc_recordkeyframe();
 #endif
diff --git a/src/engine/e_if_other.h b/src/engine/e_if_other.h
index 85148d85..ca09f48b 100644
--- a/src/engine/e_if_other.h
+++ b/src/engine/e_if_other.h
@@ -16,7 +16,6 @@ enum
 	
 	SNAP_CURRENT=0,
 	SNAP_PREV=1,
-	
 
 	MASK_NONE=0,
 	MASK_SET,
@@ -306,7 +305,10 @@ void snap_set_staticsize(int type, int size);
 enum
 {
 	MSGFLAG_VITAL=1,
-	MSGFLAG_FLUSH=2
+	MSGFLAG_FLUSH=2,
+	MSGFLAG_NORECORD=4,
+	MSGFLAG_RECORD=8,
+	MSGFLAG_NOSEND=16
 };
 
 /* message sending */
diff --git a/src/engine/e_if_server.h b/src/engine/e_if_server.h
index 98e2b452..b165ae3c 100644
--- a/src/engine/e_if_server.h
+++ b/src/engine/e_if_server.h
@@ -135,4 +135,6 @@ int server_tick();
 */
 int server_tickspeed();
 
+int server_ban_add(NETADDR addr, int type, int seconds);
+int server_ban_remove(NETADDR addr);
 #endif
diff --git a/src/engine/server/es_server.c b/src/engine/server/es_server.c
index d761e81e..306227b8 100644
--- a/src/engine/server/es_server.c
+++ b/src/engine/server/es_server.c
@@ -18,6 +18,7 @@
 #include <engine/e_config.h>
 #include <engine/e_packer.h>
 #include <engine/e_datafile.h>
+#include <engine/e_demorec.h>
 
 #include <mastersrv/mastersrv.h>
 
@@ -38,6 +39,8 @@ static int browseinfo_progression = -1;
 static int64 lastheartbeat;
 /*static NETADDR4 master_server;*/
 
+static IOHANDLE demorec_file = 0;
+
 static char current_map[64];
 static int current_map_crc;
 static unsigned char *current_map_data = 0;
@@ -66,7 +69,6 @@ static int snap_id_usage;
 static int snap_id_inusage;
 static int snap_id_inited = 0;
 
-
 enum
 {
 	SRVCLIENT_STATE_EMPTY = 0,
@@ -338,19 +340,26 @@ int server_send_msg(int client_id)
 	if(info->flags&MSGFLAG_FLUSH)
 		packet.flags |= NETSENDFLAG_FLUSH;
 	
-	if(client_id == -1)
+	/* write message to demo recorder */
+	if(!(info->flags&MSGFLAG_NORECORD))
+		demorec_record_write("MESG", info->size, info->data);
+
+	if(!(info->flags&MSGFLAG_NOSEND))
 	{
-		/* broadcast */
-		int i;
-		for(i = 0; i < MAX_CLIENTS; i++)
-			if(clients[i].state == SRVCLIENT_STATE_INGAME)
-			{
-				packet.client_id = i;
-				netserver_send(net, &packet);
-			}
+		if(client_id == -1)
+		{
+			/* broadcast */
+			int i;
+			for(i = 0; i < MAX_CLIENTS; i++)
+				if(clients[i].state == SRVCLIENT_STATE_INGAME)
+				{
+					packet.client_id = i;
+					netserver_send(net, &packet);
+				}
+		}
+		else
+			netserver_send(net, &packet);
 	}
-	else
-		netserver_send(net, &packet);
 	return 0;
 }
 
@@ -364,7 +373,29 @@ static void server_do_snap()
 		mods_presnap();
 		perf_end();
 	}
+	
+	/* create snapshot for demo recording */
+	if(demorec_file)
+	{
+		char data[MAX_SNAPSHOT_SIZE];
+		int snapshot_size;
+		DEMOREC_TICKMARKER marker;
+
+		/* write tick marker */
+		marker.tick = server_tick();
+		swap_endian(&marker, sizeof(int), sizeof(marker)/sizeof(int));
+		demorec_record_write("TICK", sizeof(marker), &marker);
+		
+		/* build snap and possibly add some messages */
+		snapbuild_init(&builder);
+		mods_snap(-1);
+		snapshot_size = snapbuild_finish(&builder, data);
+		
+		/* write snapshot */
+		demorec_record_write("SNAP", snapshot_size, data);
+	}
 
+	/* create snapshots for all clients */
 	for(i = 0; i < MAX_CLIENTS; i++)
 	{
 		/* client must be ingame to recive snapshots */
@@ -788,6 +819,17 @@ static void server_process_client_packet(NETCHUNK *packet)
 	}
 }
 
+
+int server_ban_add(NETADDR addr, int type, int seconds)
+{
+	return netserver_ban_add(net, addr, type, seconds);	
+}
+
+int server_ban_remove(NETADDR addr)
+{
+	return netserver_ban_remove(net, addr);
+}
+
 static void server_send_serverinfo(NETADDR *addr, int token)
 {
 	NETCHUNK packet;
@@ -1116,6 +1158,15 @@ static void con_kick(void *result, void *user_data)
 	server_kick(console_arg_int(result, 0), "kicked by console");
 }
 
+static void con_ban(void *result, void *user_data)
+{
+	NETADDR addr;
+	const char *str = console_arg_string(result, 0);
+	
+	if(net_addr_from_str(&addr, str) == 0)
+		server_ban_add(addr, 1, 60);
+}
+
 static void con_status(void *result, void *user_data)
 {
 	int i;
@@ -1135,14 +1186,27 @@ static void con_status(void *result, void *user_data)
 static void con_shutdown(void *result, void *user_data)
 {
 	run_server = 0;
-	/*server_kick(console_arg_int(result, 0), "kicked by console");*/
+}
+
+static void con_record(void *result, void *user_data)
+{
+	demorec_record_start(console_arg_string(result, 0), mods_net_version(), current_map, current_map_crc, "server");
+}
+
+static void con_stoprecord(void *result, void *user_data)
+{
+	demorec_record_stop();
 }
 
 static void server_register_commands()
 {
 	MACRO_REGISTER_COMMAND("kick", "i", con_kick, 0);
+	MACRO_REGISTER_COMMAND("ban", "r", con_ban, 0);
 	MACRO_REGISTER_COMMAND("status", "", con_status, 0);
 	MACRO_REGISTER_COMMAND("shutdown", "", con_shutdown, 0);
+
+	MACRO_REGISTER_COMMAND("record", "s", con_record, 0);
+	MACRO_REGISTER_COMMAND("stoprecord", "", con_stoprecord, 0);
 }
 
 int main(int argc, char **argv)