ddnet/src/engine/client/client.cpp
Jakob Fries d40868e913
2007-07-21 16:33:01 +00:00

700 lines
15 KiB
C++

#include <baselib/system.h>
#include <baselib/input.h>
#include <baselib/audio.h>
#include <baselib/stream/file.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <engine/interface.h>
#include <engine/packet.h>
#include <engine/snapshot.h>
#include "ui.h"
#include <engine/compression.h>
#include <engine/versions.h>
#include <engine/config.h>
#include <engine/network.h>
using namespace baselib;
// --- input wrappers ---
static int keyboard_state[2][input::last];
static int keyboard_current = 0;
static int keyboard_first = 1;
void inp_mouse_relative(int *x, int *y) { input::mouse_position(x, y); }
int inp_key_pressed(int key) { return keyboard_state[keyboard_current][key]; }
int inp_key_was_pressed(int key) { return keyboard_state[keyboard_current^1][key]; }
int inp_key_down(int key) { return inp_key_pressed(key)&&!inp_key_was_pressed(key); }
int inp_button_pressed(int button) { return input::pressed(button); }
void inp_update()
{
if(keyboard_first)
{
// make sure to reset
keyboard_first = 0;
inp_update();
}
keyboard_current = keyboard_current^1;
for(int i = 0; i < input::last; i++)
keyboard_state[keyboard_current][i] = input::pressed(i);
}
// --- input snapping ---
static int input_data[MAX_INPUT_SIZE] = {0};
static int input_data_size;
static int input_is_changed = 1;
void snap_input(void *data, int size)
{
if(input_data_size != size || memcmp(input_data, data, size))
input_is_changed = 1;
mem_copy(input_data, data, size);
input_data_size = size;
}
// -- snapshot handling ---
enum
{
SNAP_INCOMMING=2,
NUM_SNAPSHOT_TYPES=3,
};
static snapshot_storage snapshots_new;
static int current_tick;
static snapshot *snapshots[NUM_SNAPSHOT_TYPES];
static char snapshot_data[NUM_SNAPSHOT_TYPES][MAX_SNAPSHOT_SIZE];
static int recived_snapshots;
static int64 snapshot_start_time;
static int64 local_start_time;
float client_localtime()
{
return (time_get()-local_start_time)/(float)(time_freq());
}
void *snap_get_item(int snapid, int index, snap_item *item)
{
dbg_assert(snapid >= 0 && snapid < NUM_SNAPSHOT_TYPES, "invalid snapid");
snapshot::item *i = snapshots[snapid]->get_item(index);
item->type = i->type();
item->id = i->id();
return (void *)i->data();
}
int snap_num_items(int snapid)
{
dbg_assert(snapid >= 0 && snapid < NUM_SNAPSHOT_TYPES, "invalid snapid");
return snapshots[snapid]->num_items;
}
static void snap_init()
{
snapshots[SNAP_INCOMMING] = (snapshot*)snapshot_data[0];
snapshots[SNAP_CURRENT] = (snapshot*)snapshot_data[1];
snapshots[SNAP_PREV] = (snapshot*)snapshot_data[2];
mem_zero(snapshot_data, NUM_SNAPSHOT_TYPES*MAX_SNAPSHOT_SIZE);
recived_snapshots = 0;
}
float client_intratick()
{
return (time_get() - snapshot_start_time)/(float)(time_freq()/SERVER_TICK_SPEED);
}
int client_tick()
{
return current_tick;
}
int client_tickspeed()
{
return SERVER_TICK_SPEED;
}
void *snap_find_item(int snapid, int type, int id)
{
// TODO: linear search. should be fixed.
for(int i = 0; i < snapshots[snapid]->num_items; i++)
{
snapshot::item *itm = snapshots[snapid]->get_item(i);
if(itm->type() == type && itm->id() == id)
return (void *)itm->data();
}
return 0x0;
}
int menu_loop(); // TODO: what is this?
static float frametime = 0.0001f;
float client_frametime()
{
return frametime;
}
static net_client net;
int client_send_msg()
{
const msg_info *info = msg_get_info();
NETPACKET packet;
packet.client_id = 0;
packet.data = info->data;
packet.data_size = info->size;
if(info->flags&MSGFLAG_VITAL)
packet.flags = PACKETFLAG_VITAL;
net.send(&packet);
return 0;
}
// --- client ---
// TODO: remove this class
class client
{
public:
//socket_udp4 socket;
//connection conn;
int64 reconnect_timer;
int snapshot_part;
int debug_font; // TODO: rfemove this line
// data to hold three snapshots
// previous,
enum
{
STATE_OFFLINE,
STATE_CONNECTING,
STATE_LOADING,
STATE_ONLINE,
STATE_BROKEN,
STATE_QUIT,
};
int state;
int get_state() { return state; }
void set_state(int s)
{
dbg_msg("game", "state change. last=%d current=%d", state, s);
state = s;
}
void send_info()
{
recived_snapshots = 0;
msg_pack_start_system(NETMSG_INFO, MSGFLAG_VITAL);
msg_pack_string(config.player_name, 128);
msg_pack_string(config.clan_name, 128);
msg_pack_string(config.password, 128);
msg_pack_string("myskin", 128);
msg_pack_end();
client_send_msg();
}
void send_entergame()
{
msg_pack_start_system(NETMSG_ENTERGAME, MSGFLAG_VITAL);
msg_pack_end();
client_send_msg();
}
void send_error(const char *error)
{
/*
pack(NETMSG_CLIENT_ERROR, "s", error);
*/
/*
packet p(NETMSG_CLIENT_ERROR);
p.write_str(error);
send_packet(&p);
//send_packet(&p);
//send_packet(&p);
*/
}
void send_input()
{
msg_pack_start_system(NETMSG_INPUT, 0);
msg_pack_int(input_data_size);
for(int i = 0; i < input_data_size/4; i++)
msg_pack_int(input_data[i]);
msg_pack_end();
client_send_msg();
}
void disconnect()
{
send_error("disconnected");
set_state(STATE_OFFLINE);
map_unload();
}
void connect(netaddr4 *server_address)
{
net.connect(server_address);
set_state(STATE_CONNECTING);
}
bool load_data()
{
debug_font = gfx_load_texture("data/debug_font.png");
return true;
}
void debug_render()
{
gfx_blend_normal();
gfx_texture_set(debug_font);
gfx_mapscreen(0,0,gfx_screenwidth(),gfx_screenheight());
static NETSTATS prev, current;
static int64 last_snap = 0;
if(time_get()-last_snap > time_freq()/10)
{
last_snap = time_get();
prev = current;
net.stats(&current);
}
char buffer[512];
sprintf(buffer, "send: %8d recv: %8d",
(current.send_bytes-prev.send_bytes)*10,
(current.recv_bytes-prev.recv_bytes)*10);
gfx_quads_text(10, 10, 16, buffer);
}
void render()
{
gfx_clear(0.0f,0.0f,0.0f);
// this should be moved around abit
// TODO: clean this shit up!
if(get_state() == STATE_ONLINE)
{
modc_render();
// debug render stuff
debug_render();
}
else if (get_state() != STATE_CONNECTING && get_state() != STATE_LOADING)
{
netaddr4 server_address;
int status = modmenu_render(&server_address);
if (status == -1)
set_state(STATE_QUIT);
else if (status)
connect(&server_address);
}
else if (get_state() == STATE_CONNECTING || get_state() == STATE_LOADING)
{
static int64 start = time_get();
static int tee_texture;
static int connecting_texture;
static bool inited = false;
if (!inited)
{
tee_texture = gfx_load_texture("data/gui_tee.png");
connecting_texture = gfx_load_texture("data/gui/connecting.png");
inited = true;
}
gfx_mapscreen(0,0,400.0f,300.0f);
float t = (time_get() - start) / (double)time_freq();
float speed = 2*sin(t);
speed = 1.0f;
float x = 208 + sin(t*speed) * 32;
float w = sin(t*speed + 3.149) * 64;
ui_do_image(tee_texture, x, 95, w, 64);
ui_do_image(connecting_texture, 88, 150, 256, 64);
}
}
void run(netaddr4 *server_address)
{
local_start_time = time_get();
snapshot_part = 0;
// init graphics and sound
if(!gfx_init())
return;
snd_init(); // sound is allowed to fail
// load data
if(!load_data())
return;
// init snapshotting
snap_init();
// init the mod
modc_init();
// init menu
modmenu_init();
net.open(0);
// open socket
/*
if(!socket.open(0))
{
dbg_msg("network/client", "failed to open socket");
return;
}*/
// connect to the server if wanted
if(server_address)
connect(server_address);
//int64 inputs_per_second = 50;
//int64 time_per_input = time_freq()/inputs_per_second;
int64 game_starttime = time_get();
int64 last_input = game_starttime;
int64 reporttime = time_get();
int64 reportinterval = time_freq()*1;
int frames = 0;
input::set_mouse_mode(input::mode_relative);
while (1)
{
frames++;
int64 frame_start_time = time_get();
// send input
if(get_state() == STATE_ONLINE)
{
if(input_is_changed || time_get() > last_input+time_freq())
{
send_input();
input_is_changed = 0;
last_input = time_get();
}
}
// update input
inp_update();
//
if(input::pressed(input::f1))
input::set_mouse_mode(input::mode_absolute);
if(input::pressed(input::f2))
input::set_mouse_mode(input::mode_relative);
// panic button
if(input::pressed(input::lctrl) && input::pressed('Q'))
break;
// pump the network
pump_network();
// render
render();
// swap the buffers
gfx_swap();
// check conditions
if(get_state() == STATE_BROKEN || get_state() == STATE_QUIT)
break;
// be nice
//thread_sleep(1);
if(reporttime < time_get())
{
dbg_msg("client/report", "fps=%.02f netstate=%d",
frames/(float)(reportinterval/time_freq()), net.state());
frames = 0;
reporttime += reportinterval;
}
if (input::pressed(input::esc))
if (get_state() == STATE_CONNECTING || get_state() == STATE_ONLINE)
disconnect();
// update frametime
frametime = (time_get()-frame_start_time)/(float)time_freq();
}
modc_shutdown();
disconnect();
modmenu_shutdown();
gfx_shutdown();
snd_shutdown();
}
void error(const char *msg)
{
dbg_msg("game", "error: %s", msg);
send_error(msg);
set_state(STATE_BROKEN);
}
void process_packet(NETPACKET *packet)
{
int sys;
int msg = msg_unpack_start(packet->data, packet->data_size, &sys);
if(sys)
{
// system message
if(msg == NETMSG_MAP)
{
const char *map = msg_unpack_string();
dbg_msg("client/network", "connection accepted, map=%s", map);
set_state(STATE_LOADING);
if(map_load(map))
{
modc_entergame();
send_entergame();
dbg_msg("client/network", "loading done");
// now we will wait for two snapshots
// to finish the connection
}
else
{
error("failure to load map");
}
}
else if(msg == NETMSG_SNAP || msg == NETMSG_SNAPSMALL || msg == NETMSG_SNAPEMPTY)
{
//dbg_msg("client/network", "got snapshot");
int game_tick = msg_unpack_int();
int delta_tick = game_tick-msg_unpack_int();
int num_parts = 1;
int part = 0;
int part_size = 0;
if(msg == NETMSG_SNAP)
{
num_parts = msg_unpack_int();
part = msg_unpack_int();
}
if(msg != NETMSG_SNAPEMPTY)
part_size = msg_unpack_int();
if(snapshot_part == part)
{
// TODO: clean this up abit
const char *d = (const char *)msg_unpack_raw(part_size);
mem_copy((char*)snapshots[SNAP_INCOMMING] + part*MAX_SNAPSHOT_PACKSIZE, d, part_size);
snapshot_part++;
if(snapshot_part == num_parts)
{
snapshot *tmp = snapshots[SNAP_PREV];
snapshots[SNAP_PREV] = snapshots[SNAP_CURRENT];
snapshots[SNAP_CURRENT] = tmp;
current_tick = game_tick;
// decompress snapshot
void *deltadata = snapshot_empty_delta();
int deltasize = sizeof(int)*3;
unsigned char tmpbuffer[MAX_SNAPSHOT_SIZE];
unsigned char tmpbuffer2[MAX_SNAPSHOT_SIZE];
if(part_size)
{
int compsize = zerobit_decompress(snapshots[SNAP_INCOMMING], part_size, tmpbuffer);
int intsize = intpack_decompress(tmpbuffer, compsize, tmpbuffer2);
deltadata = tmpbuffer2;
deltasize = intsize;
}
// find snapshot that we should use as delta
static snapshot emptysnap;
emptysnap.data_size = 0;
emptysnap.num_items = 0;
snapshot *deltashot = &emptysnap;
int deltashot_size;
if(delta_tick >= 0)
{
void *delta_data;
deltashot_size = snapshots_new.get(delta_tick, &delta_data);
if(deltashot_size >= 0)
{
deltashot = (snapshot *)delta_data;
}
else
{
// TODO: handle this
dbg_msg("client", "error, couldn't find the delta snapshot");
}
}
int snapsize = snapshot_unpack_delta(deltashot, (snapshot*)snapshots[SNAP_CURRENT], deltadata, deltasize);
//snapshot *shot = (snapshot *)snapshots[SNAP_CURRENT];
// purge old snapshots
snapshots_new.purge_until(delta_tick);
snapshots_new.purge_until(game_tick-50); // TODO: change this to server tickrate
// add new
snapshots_new.add(game_tick, snapsize, snapshots[SNAP_CURRENT]);
// apply snapshot, cycle pointers
recived_snapshots++;
snapshot_start_time = time_get();
// we got two snapshots until we see us self as connected
if(recived_snapshots == 2)
{
local_start_time = time_get();
set_state(STATE_ONLINE);
}
if(recived_snapshots > 2)
modc_newsnapshot();
snapshot_part = 0;
// ack snapshot
msg_pack_start_system(NETMSG_SNAPACK, 0);
msg_pack_int(game_tick);
msg_pack_end();
client_send_msg();
}
}
else
{
dbg_msg("client", "snapshot reset!");
snapshot_part = 0;
}
}
}
else
{
// game message
modc_message(msg);
}
}
void pump_network()
{
net.update();
// check for errors
if(get_state() != STATE_OFFLINE && net.state() == NETSTATE_OFFLINE)
{
// TODO: add message to the user there
set_state(STATE_OFFLINE);
}
//
if(get_state() == STATE_CONNECTING && net.state() == NETSTATE_ONLINE)
{
// we switched to online
dbg_msg("client", "connected, sending info");
set_state(STATE_LOADING);
send_info();
}
// process packets
NETPACKET packet;
while(net.recv(&packet))
process_packet(&packet);
}
};
int editor_main(int argc, char **argv);
int main(int argc, char **argv)
{
dbg_msg("client", "starting...");
config_reset();
config_load("teewars.cfg");
netaddr4 server_address(127, 0, 0, 1, 8303);
//const char *name = "nameless jerk";
bool connect_at_once = false;
bool editor = false;
// init network, need to be done first so we can do lookups
net_init();
// parse arguments
for(int i = 1; i < argc; i++)
{
if(argv[i][0] == '-' && argv[i][1] == 'c' && argv[i][2] == 0 && argc - i > 1)
{
// -c SERVER:PORT
i++;
const char *port_str = 0;
for(int k = 0; argv[i][k]; k++)
{
if(argv[i][k] == ':')
{
port_str = &(argv[i][k+1]);
argv[i][k] = 0;
break;
}
}
int port = 8303;
if(port_str)
port = atoi(port_str);
if(net_host_lookup(argv[i], port, &server_address) != 0)
dbg_msg("main", "could not find the address of %s, connecting to localhost", argv[i]);
else
connect_at_once = true;
}
else if(argv[i][0] == '-' && argv[i][1] == 'n' && argv[i][2] == 0 && argc - i > 1)
{
// -n NAME
i++;
config_set_player_name(&config, argv[i]);
}
else if(argv[i][0] == '-' && argv[i][1] == 'w' && argv[i][2] == 0)
{
// -w
config.fullscreen = 0;
}
else if(argv[i][0] == '-' && argv[i][1] == 'e' && argv[i][2] == 0)
{
editor = true;
}
}
if(editor)
editor_main(argc, argv);
else
{
// start the client
client c;
c.run(connect_at_once ? &server_address : 0x0);
}
return 0;
}