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refactored

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This commit is contained in:
gmueller 2011-01-12 22:05:22 +01:00
parent e08d376864
commit 8e80efe3a2
9 changed files with 666 additions and 436 deletions
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7
CMakeLists.txt
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@ -1,7 +1,12 @@
cmake_minimum_required (VERSION 2.6)
project (GREMLIN C CXX)
INCLUDE (CheckIncludeFiles)
CHECK_INCLUDE_FILES ("GL/gl.h" ENABLE_VIDEO)
if (ENABLE_VIDEO)
add_subdirectory (libs/glfw)
add_subdirectory (libs/enet)
add_subdirectory (libs/spark)
endif(ENABLE_VIDEO)
add_subdirectory (libs/enet)
add_subdirectory (src)

37
src/CMakeLists.txt
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@ -1,10 +1,15 @@
if (ENABLE_VIDEO)
# find external software
find_package(OpenGL)
# set includes
include_directories (${GREMLIN_SOURCE_DIR}/libs/glfw/include)
include_directories (${GREMLIN_SOURCE_DIR}/libs/enet/include)
include_directories (${GREMLIN_SOURCE_DIR}/libs/spark/include)
SET(VIDEO_SOURCES Explosion oglfont)
endif(ENABLE_VIDEO)
include_directories (${GREMLIN_SOURCE_DIR}/libs/enet/include)
include_directories (${GREMLIN_SOURCE_DIR}/src)
@ -12,13 +17,13 @@ include_directories (${GREMLIN_SOURCE_DIR}/src)
add_executable( gremlin
main
game
Explosion
oglfont
Time
network
${VIDEO_SOURCES}
)
# set dependencies
add_dependencies( gremlin
glfw enet spark
enet
)
if (WIN32)
@ -26,10 +31,28 @@ if (WIN32)
endif(WIN32)
if(UNIX)
set(PLATFORM_LIBRARIES GL X11 Xrandr pthread asound)
set(PLATFORM_LIBRARIES pthread)
endif(UNIX)
target_link_libraries(gremlin
glfw enet spark ${OPENGL_LIBRARY} ${PLATFORM_LIBRARIES}
enet ${PLATFORM_LIBRARIES}
)
if (ENABLE_VIDEO)
# set dependencies
add_dependencies( gremlin
glfw spark
)
add_definitions(-DENABLE_VIDEO)
if(UNIX)
target_link_libraries(gremlin
GL GLU X11 Xrandr
)
endif(UNIX)
target_link_libraries(gremlin
glfw spark
)
endif(ENABLE_VIDEO)

128
src/Time.cpp Normal file
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@ -0,0 +1,128 @@
/*
* Timer.cpp
*
* Created on: 12.01.2011
* Author: gmueller
*/
#include "Time.h"
#ifdef _WIN32
#define MEAN_AND_LEAN
#include <windows.h>
static int _hasPerformanceCounter;
static unsigned int _t0_32;
static __int64 _t0_64;
static double _resolution = 0.0;
static bool _initialized = false;
static void _init() {
__int64 freq;
// Check if we have a performance counter
if( QueryPerformanceFrequency( (LARGE_INTEGER *)&freq ) )
{
// Performance counter is available => use it!
_hasPerformanceCounter = GL_TRUE;
// Counter resolution is 1 / counter frequency
_resolution = 1.0 / (double)freq;
// Set start time for timer
QueryPerformanceCounter( (LARGE_INTEGER *)&__t0_64 );
}
else
{
// No performace counter available => use the tick counter
_hasPerformanceCounter = 0;
// Counter resolution is 1 ms
_resolution = 0.001;
// Set start time for timer
_t0_32 = timeGetTime();
}
}
double PerformanceTimer::get() {
if (_initialized == false)
_init();
double t;
__int64 t_64;
if( _hasPerformanceCounter ) {
QueryPerformanceCounter( (LARGE_INTEGER *)&t_64 );
t = (double)(t_64 - _t0_64);
}
else
{
t = (double)(timeGetTime() - _t0_32);
}
// Calculate the current time in seconds
return t * _resolution;
}
void PerformanceTimer::set(double t) {
if (_initialized == false)
_init();
__int64 t_64;
if( _hasPerformanceCounter )
{
QueryPerformanceCounter( (LARGE_INTEGER *)&t_64 );
_t0_64 = t_64 - (__int64)(t/_resolution);
}
else
{
_t0_32 = timeGetTime() - (int)(t*1000.0);
}
}
#else
#include <sys/time.h>
static double _resolution = 0.0;
static long long _t0 = 0;
static bool _initialized = false;
static void _init() {
// "Resolution" is 1 us
_resolution = 1e-6;
// Set start-time for timer
struct timeval tv;
gettimeofday(&tv, 0);
_t0 = (long long) tv.tv_sec * (long long) 1000000 + (long long) tv.tv_usec;
_initialized = true;
}
double PerformanceTimer::get() {
if (_initialized == false)
_init();
struct timeval tv;
gettimeofday(&tv, 0);
long long t = (long long) tv.tv_sec * (long long) 1000000
+ (long long) tv.tv_usec;
return (double) (t - _t0) * _resolution;
}
void PerformanceTimer::set(double t) {
if (_initialized == false)
_init();
long long t1;
struct timeval tv;
gettimeofday(&tv, 0);
t1 = (long long) tv.tv_sec * (long long) 1000000 + (long long) tv.tv_usec;
// Calulate new starting time
_t0 = t1 - (long long) (t / _resolution);
}
#endif // else _WIN32

17
src/Time.h Normal file
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@ -0,0 +1,17 @@
/*
* Timer.h
*
* Created on: 12.01.2011
* Author: gmueller
*/
#ifndef TIME_H_
#define TIME_H_
class PerformanceTimer {
public:
static double get();
static void set(double);
};
#endif /* TIME_H_ */

4
src/game.cpp
View File

@ -207,6 +207,7 @@ void _explode_bomb(game_t *game, bomb_t *bomb) {
double distance2 = pow(player->x - bomb->x, 2) + pow(player->y
- bomb->y, 2) + pow(player->z - bomb->z, 2);
if (distance2 < pow(150, 2)) {
if (game->explosion_callback)
game->explosion_callback(player->x, player->y, player->z);
player->x = player->team->x + 100;
player->y = player->team->y;
@ -258,10 +259,13 @@ void game_update_bombs(game_t *game, double dt) {
if (bomb->ttl < 0) {
if (bomb->status == 1) {
if (game->explosion_callback)
game->explosion_callback(bomb->x, bomb->y, bomb->z);
bomb->status = 2;
} else if (bomb->ttl < -0.2) {
if (game->master) {
_explode_bomb(game, bomb);
}
bomb->status = 0;
}
}

1
src/game.h
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@ -50,6 +50,7 @@ struct game_t {
int16_t max_player_id;
int master;
double updateTime;
player_t *local_player;
void(*explosion_callback)(double x, double y, double z);
};

495
src/main.cpp
View File

@ -4,19 +4,18 @@
#include <string.h>
#include <sstream>
#include <enet/enet.h>
#include <GL/glfw.h>
#include <enet/enet.h>
#include "common.h"
#include "game.h"
#include "Explosion.h"
#include "Schedule.h"
#include "oglfont.h"
#include "Time.h"
#include "network.h"
GLUquadricObj *quadratic;
ENetHost *host;
ENetPeer *client_peer;
player_t *local_player;
Explosion explosion;
void key_callback(int key, int state) {
@ -38,11 +37,6 @@ void setup_light() {
}
void setup_opengl() {
// Initialise GLFW
if (!glfwInit()) {
fprintf(stderr, "Failed to initialize GLFW\n");
exit(EXIT_FAILURE);
}
// Open OpenGL window
if (!glfwOpenWindow(640, 480, 0, 0, 0, 0, 0, 0, GLFW_WINDOW)) {
@ -114,378 +108,6 @@ void draw_point(point_t *point) {
glPopMatrix();
}
void setup_network(const char *remote) {
if (enet_initialize() != 0) {
fprintf(stderr, "An error occurred while initializing ENet.\n");
exit(EXIT_FAILURE);
}
if (remote == NULL) {
ENetAddress address;
address.host = ENET_HOST_ANY;
address.port = 1234;
host = enet_host_create(&address, 32, 2, 0, 0);
if (host == NULL) {
fprintf(stderr,
"An error occurred while trying to create an ENet server host.\n");
exit(EXIT_FAILURE);
}
} else {
ENetAddress address;
ENetEvent event;
host = enet_host_create(NULL, 1, 2, 57600 / 8, 14400 / 8);
if (host == NULL) {
fprintf(stderr,
"An error occurred while trying to create an ENet client host.\n");
exit(EXIT_FAILURE);
}
enet_address_set_host(&address, remote);
address.port = 1234;
/* Initiate the connection, allocating the two channels 0 and 1. */
client_peer = enet_host_connect(host, &address, 2, 0);
if (client_peer == NULL) {
fprintf(stderr,
"No available peers for initiating an ENet connection.\n");
exit(EXIT_FAILURE);
}
/* Wait up to 5 seconds for the connection attempt to succeed. */
if (enet_host_service(host, &event, 5000) > 0 && event.type
== ENET_EVENT_TYPE_CONNECT) {
puts("Connection succeeded.");
} else {
/* Either the 5 seconds are up or a disconnect event was */
/* received. Reset the peer in the event the 5 seconds */
/* had run out without any significant event. */
enet_peer_reset(client_peer);
fprintf(stderr, "Connection to %s failed.", remote);
}
}
}
#define MESSAGE_PLAYER_SPAWN 0
#define MESSAGE_PLAYER_KILL 1
#define MESSAGE_ACCEPT 2
#define MESSAGE_PLAYER_UPDATE 3
#define MESSAGE_PLAYER_ACCELERATE 4
#define MESSAGE_BOMB_DROP 5
#define MESSAGE_BOMB_UPDATE 6
#define MESSAGE_POINT_UPDATE 7
#define MESSAGE_TEAM_UPDATE 8
typedef struct message_t {
uint16_t msg_id;
} message_t;
typedef struct player_spawn_message_t {
uint16_t msg_id;
uint8_t team_id;
uint16_t player_id;
} player_spawn_message_t;
typedef struct player_kill_message_t {
uint16_t msg_id;
uint16_t player_id;
} player_kill_message_t;
typedef struct accept_message_t {
uint16_t msg_id;
uint16_t player_id;
} accept_message_t;
typedef struct player_update_message_t {
uint16_t msg_id;
uint16_t player_id;
unsigned int session;
double x, y, z;
double vx, vy, vz;
uint16_t points;
} player_update_message_t;
typedef struct player_accelerate_message_t {
uint16_t msg_id;
uint16_t player_id;
double x, y, z;
} player_accelerate_message_t;
typedef struct bomb_drop_meesage_t {
uint16_t msg_id;
double x, y, z;
double vx, vy, vz;
double ttl;
} bomb_drop_meesage_t;
typedef struct bomb_update_meesage_t {
uint16_t msg_id;
uint16_t bomb_index;
double x, y, z;
double vx, vy, vz;
double ttl;
} bomb_update_meesage_t;
typedef struct point_update_mesage_t {
uint16_t msg_id;
uint16_t point_index;
uint8_t status;
double x, y, z;
} point_update_meesage_t;
struct team_update_message_t {
uint16_t msg_id;
uint16_t team_id;
uint16_t points;
uint16_t wins;
};
void send_player_updates(game_t *game) {
size_t i;
for (i = 0; i < GAME_PLAYER_COUNT; i++) {
if (game->player[i].status == 0)
continue;
player_update_message_t msg;
msg.msg_id = MESSAGE_PLAYER_UPDATE;
msg.player_id = game->player[i].id;
msg.x = game->player[i].x;
msg.y = game->player[i].y;
msg.z = game->player[i].z;
msg.vx = game->player[i].vx;
msg.vy = game->player[i].vy;
msg.vz = game->player[i].vz;
msg.points = game->player[i].points;
ENetPacket * packet = enet_packet_create(&msg, sizeof(msg), 0);
enet_host_broadcast(host, 0, packet);
}
for (i = 0; i < GAME_TEAM_COUNT; i++) {
team_update_message_t msg;
msg.msg_id = MESSAGE_TEAM_UPDATE;
msg.team_id = game->team[i].id;
msg.points = game->team[i].points;
msg.wins = game->team[i].wins;
ENetPacket * packet = enet_packet_create(&msg, sizeof(msg), 0);
enet_host_broadcast(host, 0, packet);
}
}
void dispatch_message(enet_uint8 *data, size_t length, game_t *game) {
message_t *msg = (message_t *) data;
switch (msg->msg_id) {
case MESSAGE_PLAYER_SPAWN: {
player_spawn_message_t *sm = (player_spawn_message_t *) data;
team_t *team = game_team(game, sm->team_id);
player_t *player = game_spawn_player_id(game, team, sm->player_id);
break;
}
case MESSAGE_PLAYER_KILL: {
player_kill_message_t *sm = (player_kill_message_t *) data;
player_t *player = game_player(game, sm->player_id);
player->status = 0;
player->team = 0;
break;
}
case MESSAGE_ACCEPT: {
accept_message_t *am = (accept_message_t *) data;
local_player = game_player(game, am->player_id);
printf("Spwan as %d.%d\n", local_player->team->id, local_player->id);
break;
}
case MESSAGE_PLAYER_UPDATE: {
player_update_message_t *um = (player_update_message_t *) data;
player_t *player = game_player(game, um->player_id);
player->x = um->x + um->vx * 0.0001;
player->y = um->y + um->vy * 0.0001;
player->z = um->z + um->vz * 0.0001;
player->vx = um->vx;
player->vy = um->vy;
player->vz = um->vz;
player->points = um->points;
break;
}
case MESSAGE_POINT_UPDATE: {
point_update_mesage_t *msg = (point_update_mesage_t *) data;
point_t *p = &game->point[msg->point_index];
p->status = msg->status;
p->x = msg->x;
p->y = msg->y;
p->z = msg->z;
break;
}
case MESSAGE_PLAYER_ACCELERATE: {
player_accelerate_message_t *um = (player_accelerate_message_t *) data;
player_t *player = game_player(game, um->player_id);
player->vx += um->x;
player->vy += um->y;
player->vz += um->z;
break;
}
case MESSAGE_BOMB_DROP: {
bomb_drop_meesage_t *m = (bomb_drop_meesage_t *) data;
bomb_t *bomb = game_spawn_bomb(game);
if (bomb == NULL)
return;
bomb->x = m->x + m->vx * 0.0001;
bomb->y = m->y + m->vy * 0.0001;
bomb->z = m->z + m->vz * 0.0001;
bomb->vx = m->vx;
bomb->vy = m->vy;
bomb->vz = m->vz;
bomb->ttl = m->ttl;
if (client_peer == NULL) {
ENetPacket * packet = enet_packet_create(data, length,
ENET_PACKET_FLAG_RELIABLE);
enet_host_broadcast(host, 0, packet);
}
break;
}
case MESSAGE_TEAM_UPDATE: {
team_update_message_t *m = (team_update_message_t *) data;
team_t *team = game_team(game, m->team_id);
if (team == NULL)
return;
team->points = m->points;
team->wins = m->wins;
break;
}
};
}
void service_network(game_t *game) {
ENetEvent event;
/* Wait up to 1000 milliseconds for an event. */
while (enet_host_service(host, &event, 0) > 0) {
switch (event.type) {
case ENET_EVENT_TYPE_CONNECT:
printf("A new client connected from %x:%u.\n",
event.peer->address.host, event.peer->address.port);
{
// bring new client up to date
size_t i;
for (i = 0; i < GAME_PLAYER_COUNT; i++) {
if (game->player[i].status == 0)
continue;
// send player spawn message
player_spawn_message_t spwan_msg;
spwan_msg.msg_id = MESSAGE_PLAYER_SPAWN;
spwan_msg.team_id = game->player[i].team->id;
spwan_msg.player_id = game->player[i].id;
ENetPacket * packet = enet_packet_create(&spwan_msg,
sizeof(spwan_msg), ENET_PACKET_FLAG_RELIABLE);
enet_peer_send(event.peer, 0, packet);
}
for (i = 0; i < GAME_POINT_COUNT; i++) {
if (game->point[i].status == 0)
continue;
point_update_mesage_t msg;
msg.msg_id = MESSAGE_POINT_UPDATE;
msg.point_index = i;
msg.status = game->point[i].status;
msg.x = game->point[i].x;
msg.y = game->point[i].y;
msg.z = game->point[i].z;
ENetPacket * packet = enet_packet_create(&msg, sizeof(msg),
ENET_PACKET_FLAG_RELIABLE);
enet_peer_send(event.peer, 0, packet);
}
team_t *team = game_team_with_least_players(game);
player_t *player = game_spawn_player(game, team);
printf("Spwan as %d.%d\n", team->id, player->id);
event.peer->data = player;
// send player spawn message
player_spawn_message_t spwan_msg;
spwan_msg.msg_id = MESSAGE_PLAYER_SPAWN;
spwan_msg.team_id = team->id;
spwan_msg.player_id = player->id;
ENetPacket * packet = enet_packet_create(&spwan_msg,
sizeof(spwan_msg), ENET_PACKET_FLAG_RELIABLE);
enet_host_broadcast(host, 0, packet);
// send team and player
accept_message_t msg;
msg.msg_id = MESSAGE_ACCEPT;
msg.player_id = player->id;
packet = enet_packet_create(&msg, sizeof(msg),
ENET_PACKET_FLAG_RELIABLE);
enet_peer_send(event.peer, 0, packet);
// send state
}
break;
case ENET_EVENT_TYPE_RECEIVE: {
dispatch_message(event.packet->data, event.packet->dataLength, game);
enet_packet_destroy(event.packet);
break;
}
case ENET_EVENT_TYPE_DISCONNECT:
printf("%s disconected.\n", event.peer -> data);
{
/* Reset the peer's client information. */
player_t *player = (player_t *) event.peer->data;
player->status = 0;
player->team = 0;
// send player spawn message
player_kill_message_t msg;
msg.msg_id = MESSAGE_PLAYER_KILL;
msg.player_id = player->id;
ENetPacket * packet = enet_packet_create(&msg, sizeof(msg),
ENET_PACKET_FLAG_RELIABLE);
enet_host_broadcast(host, 0, packet);
}
event.peer->data = NULL;
break;
}
}
}
void accelerate(game_t *game, double x, double y, double z) {
if (local_player == 0)
return;
player_accelerate_message_t msg;
msg.msg_id = MESSAGE_PLAYER_ACCELERATE;
msg.player_id = local_player->id;
msg.x = x;
msg.y = y;
msg.z = z;
if (client_peer) {
ENetPacket * packet = enet_packet_create(&msg, sizeof(msg),
ENET_PACKET_FLAG_RELIABLE);
enet_peer_send(client_peer, 0, packet);
} else {
dispatch_message((uint8_t*) &msg, sizeof(msg), game);
}
}
void drop_bomb(game_t *game, double rx, double ry, double rz, double ttl) {
bomb_drop_meesage_t msg;
msg.msg_id = MESSAGE_BOMB_DROP;
msg.x = local_player->x + rx * 20;
msg.y = local_player->y + ry * 20;
msg.z = local_player->z + rz * 20;
msg.vx = local_player->vx + rx * 100;
msg.vy = local_player->vy + ry * 100;
msg.vz = local_player->vz + rz * 100;
msg.ttl = ttl;
if (client_peer) {
ENetPacket * packet = enet_packet_create(&msg, sizeof(msg),
ENET_PACKET_FLAG_RELIABLE);
enet_peer_send(client_peer, 0, packet);
} else {
dispatch_message((uint8_t*) &msg, sizeof(msg), game);
}
}
void setup_explosion() {
// Loads particle texture
@ -685,10 +307,36 @@ private:
oglf_font_t font;
void prepareFrame(double rx, double ry, double rz);
void accelerate(double x, double y, double z);
void drop_bomb(double rx, double ry, double rz, double ttl);
void loadConsoleFont();
};
void Application::accelerate(double x, double y, double z) {
if (game.local_player == 0)
return;
player_accelerate_message_t msg;
msg.msg_id = MESSAGE_PLAYER_ACCELERATE;
msg.player_id = game.local_player->id;
msg.x = x;
msg.y = y;
msg.z = z;
send_message((uint8_t*) &msg, sizeof(msg), &game);
}
void Application::drop_bomb(double rx, double ry, double rz, double ttl) {
bomb_drop_meesage_t msg;
msg.msg_id = MESSAGE_BOMB_DROP;
msg.x = game.local_player->x + rx * 20;
msg.y = game.local_player->y + ry * 20;
msg.z = game.local_player->z + rz * 20;
msg.vx = game.local_player->vx + rx * 100;
msg.vy = game.local_player->vy + ry * 100;
msg.vz = game.local_player->vz + rz * 100;
msg.ttl = ttl;
send_message((uint8_t*) &msg, sizeof(msg), &game);
}
void Application::loadConsoleFont() {
GLuint font_id = 0;
@ -735,35 +383,48 @@ void Application::initialize(int argc, char ** argv) {
server = 0;
double time, last_player_update;
std::string arg1;
if (argc > 1) {
arg1 = argv[1];
if (arg1 == "server") {
server = 1;
} else {
server = 0;
}
} else {
server = 0;
arg1 = "forge.camijo.de";
}
// Initialise GLFW
if (!glfwInit()) {
fprintf(stderr, "Failed to initialize GLFW\n");
exit(EXIT_FAILURE);
}
game_setup(&game, server, explosion_callback);
setup_opengl();
setup_explosion();
quadratic = gluNewQuadric();
gluQuadricNormals(quadratic, GLU_SMOOTH);
gluQuadricTexture(quadratic, GL_TRUE);
if (argc > 1) {
server = 0;
} else {
server = 1;
}
game_setup(&game, server, explosion_callback);
setup_opengl();
setup_explosion();
if (server) {
setup_network(NULL);
team_t *team = game_team(&game, 0);
local_player = game_spawn_player(&game, team);
game.local_player = game_spawn_player(&game, team);
} else {
setup_network(argv[1]);
setup_network(arg1.c_str());
}
size_t i;
running = GL_TRUE;
last_time = glfwGetTime();
last_time = PerformanceTimer::get();
last_player_update = last_time;
last_bomb = last_time - 5.;
glfwGetMousePos(&last_x, &last_y);
glfwGetMousePos(&last_x, &last_y);
accelerate_schudule.setExact(true);
accelerate_schudule.setInterval(0.05);
@ -776,8 +437,9 @@ void Application::initialize(int argc, char ** argv) {
void Application::update() {
// Get time and mouse position
double time = glfwGetTime();
double time = PerformanceTimer::get();
double dt = time - last_time;
int x, y;
glfwGetMousePos(&x, &y);
if (glfwGetMouseButton(GLFW_MOUSE_BUTTON_2) == GLFW_PRESS) {
@ -791,13 +453,11 @@ void Application::update() {
last_x = x;
last_y = y;
game_update(&game, dt);
service_network(&game);
game_update(&game, dt);
if (server && player_update_schudule.next(time)) {
send_player_updates(&game);
}
double rx = cos(phi) * cos(theta);
double ry = sin(theta);
double rz = sin(phi) * cos(theta);
@ -805,34 +465,33 @@ void Application::update() {
double t = accelerate_schudule.getInterval();
double v = 50.0 * t;
if (glfwGetKey('W')) {
accelerate(&game, rx * v, ry * v, rz * v);
accelerate(rx * v, ry * v, rz * v);
} else if (glfwGetKey('S')) {
accelerate(&game, rx * -v, ry * -v, rz * -v);
accelerate(rx * -v, ry * -v, rz * -v);
}
if (glfwGetKey('A')) {
accelerate(&game, rz * v, 0, -rx * v);
accelerate(rz * v, 0, -rx * v);
} else if (glfwGetKey('D')) {
accelerate(&game, -rz * v, 0, rx * v);
accelerate(-rz * v, 0, rx * v);
}
if (glfwGetKey(GLFW_KEY_SPACE)) {
accelerate(&game, local_player->vx * -0.1, local_player->vy * -0.1,
local_player->vz * -0.1);
accelerate(game.local_player->vx * -0.1, game.local_player->vy
* -0.1, game.local_player->vz * -0.1);
}
}
if (glfwGetKey(GLFW_KEY_LCTRL)) {
if (time - last_bomb > 1.0) {
last_bomb = time;
drop_bomb(&game, rx, ry, rz, 5.0);
drop_bomb(rx, ry, rz, 5.0);
}
}
//service_network(&game);
if (local_player) {
camX = local_player->x;
camY = local_player->y;
camZ = local_player->z;
if (game.local_player) {
camX = game.local_player->x;
camY = game.local_player->y;
camZ = game.local_player->z;
} else {
camX = 1000.0;
camY = 1000.0;
@ -865,15 +524,15 @@ void Application::update() {
explosion.update(dt * 1000.0, camX, camY, camZ);
explosion.render();
oglf_begin(&font, width, height);
if (local_player) {
if (game.local_player) {
std::stringstream sstr;
sstr << "Points: " << local_player->points;
sstr << "Points: " << game.local_player->points;
oglf_print(&font, 10, 10, sstr.str().c_str());
}
for (size_t i = 0; i < GAME_TEAM_COUNT; i++) {
std::stringstream sstr;
if (local_player && &game.team[i] == local_player->team) {
if (game.local_player && &game.team[i] == game.local_player->team) {
sstr << "Team " << i << " (yours) : " << game.team[i].points;
} else {
sstr << "Team " << i << " (other) : " << game.team[i].points;
@ -885,7 +544,6 @@ void Application::update() {
// Swap buffers
glfwSwapBuffers();
// Check if the ESC key was pressed or the window was closed
running = !glfwGetKey(GLFW_KEY_ESC) && glfwGetWindowParam(GLFW_OPENED);
@ -896,10 +554,9 @@ void Application::update() {
void Application::shutdown() {
gluDeleteQuadric(quadratic);
enet_host_destroy(host);
enet_deinitialize();
oglf_destroy(&font);
shutdown_network();
// Close OpenGL window and terminate GLFW
glfwTerminate();
}

300
src/network.cpp Normal file
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@ -0,0 +1,300 @@
/*
* network.cpp
*
* Created on: 12.01.2011
* Author: gmueller
*/
#include "network.h"
#include <enet/enet.h>
#include <stdio.h>
ENetHost *host = 0;
ENetPeer *client_peer = 0;
void setup_network(const char *remote) {
if (enet_initialize() != 0) {
fprintf(stderr, "An error occurred while initializing ENet.\n");
exit(EXIT_FAILURE);
}
if (remote == NULL) {
fprintf(stdout, "Start server.\n");
ENetAddress address;
address.host = ENET_HOST_ANY;
address.port = 1234;
host = enet_host_create(&address, 32, 2, 0, 0);
if (host == NULL) {
fprintf(stderr,
"An error occurred while trying to create an ENet server host.\n");
exit(EXIT_FAILURE);
}
} else {
fprintf(stdout, "Start client.\n");
ENetAddress address;
ENetEvent event;
host = enet_host_create(NULL, 1, 2, 57600 / 8, 14400 / 8);
if (host == NULL) {
fprintf(stderr,
"An error occurred while trying to create an ENet client host.\n");
exit(EXIT_FAILURE);
}
enet_address_set_host(&address, remote);
address.port = 1234;
/* Initiate the connection, allocating the two channels 0 and 1. */
client_peer = enet_host_connect(host, &address, 2, 0);
if (client_peer == NULL) {
fprintf(stderr,
"No available peers for initiating an ENet connection.\n");
exit(EXIT_FAILURE);
}
/* Wait up to 5 seconds for the connection attempt to succeed. */
if (enet_host_service(host, &event, 5000) > 0 && event.type
== ENET_EVENT_TYPE_CONNECT) {
puts("Connection succeeded.");
} else {
/* Either the 5 seconds are up or a disconnect event was */
/* received. Reset the peer in the event the 5 seconds */
/* had run out without any significant event. */
enet_peer_reset(client_peer);
fprintf(stderr, "Connection to %s failed.", remote);
}
}
}
void shutdown_network() {
enet_host_destroy(host);
enet_deinitialize();
}
void send_player_updates(game_t *game) {
size_t i;
for (i = 0; i < GAME_PLAYER_COUNT; i++) {
if (game->player[i].status == 0)
continue;
player_update_message_t msg;
msg.msg_id = MESSAGE_PLAYER_UPDATE;
msg.player_id = game->player[i].id;
msg.x = game->player[i].x;
msg.y = game->player[i].y;
msg.z = game->player[i].z;
msg.vx = game->player[i].vx;
msg.vy = game->player[i].vy;
msg.vz = game->player[i].vz;
msg.points = game->player[i].points;
ENetPacket * packet = enet_packet_create(&msg, sizeof(msg), 0);
enet_host_broadcast(host, 0, packet);
}
for (i = 0; i < GAME_TEAM_COUNT; i++) {
team_update_message_t msg;
msg.msg_id = MESSAGE_TEAM_UPDATE;
msg.team_id = game->team[i].id;
msg.points = game->team[i].points;
msg.wins = game->team[i].wins;
ENetPacket * packet = enet_packet_create(&msg, sizeof(msg), 0);
enet_host_broadcast(host, 0, packet);
}
}
void dispatch_message(enet_uint8 *data, size_t length, game_t *game) {
message_t *msg = (message_t *) data;
switch (msg->msg_id) {
case MESSAGE_PLAYER_SPAWN: {
player_spawn_message_t *sm = (player_spawn_message_t *) data;
team_t *team = game_team(game, sm->team_id);
player_t *player = game_spawn_player_id(game, team, sm->player_id);
break;
}
case MESSAGE_PLAYER_KILL: {
player_kill_message_t *sm = (player_kill_message_t *) data;
player_t *player = game_player(game, sm->player_id);
player->status = 0;
player->team = 0;
break;
}
case MESSAGE_ACCEPT: {
accept_message_t *am = (accept_message_t *) data;
game->local_player = game_player(game, am->player_id);
printf("Spwan as %d.%d\n", game->local_player->team->id,
game->local_player->id);
break;
}
case MESSAGE_PLAYER_UPDATE: {
player_update_message_t *um = (player_update_message_t *) data;
player_t *player = game_player(game, um->player_id);
if (player != game->local_player) {
player->x = um->x + um->vx * 0.0001;
player->y = um->y + um->vy * 0.0001;
player->z = um->z + um->vz * 0.0001;
player->vx = um->vx;
player->vy = um->vy;
player->vz = um->vz;
} else {
player->vx = um->vx + (um->x - player->x);
player->vy = um->vy + (um->y - player->y);
player->vz = um->vz + (um->z - player->z);
}
player->points = um->points;
break;
}
case MESSAGE_POINT_UPDATE: {
point_update_mesage_t *msg = (point_update_mesage_t *) data;
point_t *p = &game->point[msg->point_index];
p->status = msg->status;
p->x = msg->x;
p->y = msg->y;
p->z = msg->z;
break;
}
case MESSAGE_PLAYER_ACCELERATE: {
player_accelerate_message_t *um = (player_accelerate_message_t *) data;
player_t *player = game_player(game, um->player_id);
player->vx += um->x;
player->vy += um->y;
player->vz += um->z;
break;
}
case MESSAGE_BOMB_DROP: {
bomb_drop_meesage_t *m = (bomb_drop_meesage_t *) data;
bomb_t *bomb = game_spawn_bomb(game);
if (bomb == NULL)
return;
bomb->x = m->x + m->vx * 0.0001;
bomb->y = m->y + m->vy * 0.0001;
bomb->z = m->z + m->vz * 0.0001;
bomb->vx = m->vx;
bomb->vy = m->vy;
bomb->vz = m->vz;
bomb->ttl = m->ttl;
if (client_peer == NULL) {
ENetPacket * packet = enet_packet_create(data, length,
ENET_PACKET_FLAG_RELIABLE);
enet_host_broadcast(host, 0, packet);
}
break;
}
case MESSAGE_TEAM_UPDATE: {
team_update_message_t *m = (team_update_message_t *) data;
team_t *team = game_team(game, m->team_id);
if (team == NULL)
return;
team->points = m->points;
team->wins = m->wins;
break;
}
};
}
void service_network(game_t *game) {
ENetEvent event;
/* Wait up to 1000 milliseconds for an event. */
while (enet_host_service(host, &event, 0) > 0) {
switch (event.type) {
case ENET_EVENT_TYPE_CONNECT:
printf("A new client connected from %x:%u.\n",
event.peer->address.host, event.peer->address.port);
{
// bring new client up to date
size_t i;
for (i = 0; i < GAME_PLAYER_COUNT; i++) {
if (game->player[i].status == 0)
continue;
// send player spawn message
player_spawn_message_t spwan_msg;
spwan_msg.msg_id = MESSAGE_PLAYER_SPAWN;
spwan_msg.team_id = game->player[i].team->id;
spwan_msg.player_id = game->player[i].id;
ENetPacket * packet = enet_packet_create(&spwan_msg,
sizeof(spwan_msg), ENET_PACKET_FLAG_RELIABLE);
enet_peer_send(event.peer, 0, packet);
}
for (i = 0; i < GAME_POINT_COUNT; i++) {
if (game->point[i].status == 0)
continue;
point_update_mesage_t msg;
msg.msg_id = MESSAGE_POINT_UPDATE;
msg.point_index = i;
msg.status = game->point[i].status;
msg.x = game->point[i].x;
msg.y = game->point[i].y;
msg.z = game->point[i].z;
ENetPacket * packet = enet_packet_create(&msg, sizeof(msg),
ENET_PACKET_FLAG_RELIABLE);
enet_peer_send(event.peer, 0, packet);
}
team_t *team = game_team_with_least_players(game);
player_t *player = game_spawn_player(game, team);
printf("Spwan as %d.%d\n", team->id, player->id);
event.peer->data = player;
// send player spawn message
player_spawn_message_t spwan_msg;
spwan_msg.msg_id = MESSAGE_PLAYER_SPAWN;
spwan_msg.team_id = team->id;
spwan_msg.player_id = player->id;
ENetPacket * packet = enet_packet_create(&spwan_msg,
sizeof(spwan_msg), ENET_PACKET_FLAG_RELIABLE);
enet_host_broadcast(host, 0, packet);
// send team and player
accept_message_t msg;
msg.msg_id = MESSAGE_ACCEPT;
msg.player_id = player->id;
packet = enet_packet_create(&msg, sizeof(msg),
ENET_PACKET_FLAG_RELIABLE);
enet_peer_send(event.peer, 0, packet);
// send state
}
break;
case ENET_EVENT_TYPE_RECEIVE: {
dispatch_message(event.packet->data, event.packet->dataLength, game);
enet_packet_destroy(event.packet);
break;
}
case ENET_EVENT_TYPE_DISCONNECT:
printf("%s disconected.\n", event.peer -> data);
{
/* Reset the peer's client information. */
player_t *player = (player_t *) event.peer->data;
player->status = 0;
player->team = 0;
// send player spawn message
player_kill_message_t msg;
msg.msg_id = MESSAGE_PLAYER_KILL;
msg.player_id = player->id;
ENetPacket * packet = enet_packet_create(&msg, sizeof(msg),
ENET_PACKET_FLAG_RELIABLE);
enet_host_broadcast(host, 0, packet);
}
event.peer->data = NULL;
break;
}
}
}
void send_message(uint8_t *data, size_t length, game_t *game) {
if (client_peer) {
ENetPacket * packet = enet_packet_create(data, length,
ENET_PACKET_FLAG_RELIABLE);
enet_peer_send(client_peer, 0, packet);
} else {
dispatch_message(data, length, game);
}
}

95
src/network.h Normal file
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@ -0,0 +1,95 @@
/*
* network.h
*
* Created on: 12.01.2011
* Author: gmueller
*/
#ifndef NETWORK_H_
#define NETWORK_H_
#include "game.h"
#include "common.h"
#define MESSAGE_PLAYER_SPAWN 0
#define MESSAGE_PLAYER_KILL 1
#define MESSAGE_ACCEPT 2
#define MESSAGE_PLAYER_UPDATE 3
#define MESSAGE_PLAYER_ACCELERATE 4
#define MESSAGE_BOMB_DROP 5
#define MESSAGE_BOMB_UPDATE 6
#define MESSAGE_POINT_UPDATE 7
#define MESSAGE_TEAM_UPDATE 8
typedef struct message_t {
uint16_t msg_id;
} message_t;
typedef struct player_spawn_message_t {
uint16_t msg_id;
uint8_t team_id;
uint16_t player_id;
} player_spawn_message_t;
typedef struct player_kill_message_t {
uint16_t msg_id;
uint16_t player_id;
} player_kill_message_t;
typedef struct accept_message_t {
uint16_t msg_id;
uint16_t player_id;
} accept_message_t;
typedef struct player_update_message_t {
uint16_t msg_id;
uint16_t player_id;
unsigned int session;
double x, y, z;
double vx, vy, vz;
uint16_t points;
} player_update_message_t;
typedef struct player_accelerate_message_t {
uint16_t msg_id;
uint16_t player_id;
double x, y, z;
} player_accelerate_message_t;
typedef struct bomb_drop_meesage_t {
uint16_t msg_id;
double x, y, z;
double vx, vy, vz;
double ttl;
} bomb_drop_meesage_t;
typedef struct bomb_update_meesage_t {
uint16_t msg_id;
uint16_t bomb_index;
double x, y, z;
double vx, vy, vz;
double ttl;
} bomb_update_meesage_t;
typedef struct point_update_mesage_t {
uint16_t msg_id;
uint16_t point_index;
uint8_t status;
double x, y, z;
} point_update_meesage_t;
struct team_update_message_t {
uint16_t msg_id;
uint16_t team_id;
uint16_t points;
uint16_t wins;
};
void setup_network(const char *remote);
void shutdown_network();
void dispatch_message(uint8_t *data, size_t length, game_t *game);
void service_network(game_t *game);
void send_player_updates(game_t *game);
void send_message(uint8_t *data, size_t length, game_t *game);
#endif /* NETWORK_H_ */