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#include "structs.hpp"
#include <vector>
#include <mutex>
#include <ncurses.h>
//#define DEBUG
int handle_incoming_packet(Player* player, Packet* packet, std::vector<Player*>* players);
int handle_packet_connect(Player* player, PacketConnect* packet, std::vector<Player*>* players);
int handle_packet_disconnect(Player* player, PacketDisconnect* packet, std::vector<Player*>* players);
int handle_packet_move(Player* player, PacketMove* packet, std::vector<Player*>* players);
int handle_packet_server_info(PacketServerInfo* packet);
int add_player(Player* player, std::vector<Player*>* players);
int remove_player(unsigned int sender_id, std::vector<Player*>* players);
int initialize_new_client(Player* player, std::vector<Player*>* players);
int send_packet(Player* player, PacketType packet_type, int* sockfd, void* extra_data);
int ping_server(int* sockfd);
int draw_game(std::vector<Player*>* players);
int setup_ncurses();
int players_contain( std::vector<Player*>* players, unsigned int sender_id);
void print_debug_players( std::vector<Player*>* players);
void print_player_info(Player* player);
extern std::vector<Player*> players;
extern int max_players;
extern int fps;
extern const int server;
extern int client_id;
extern bool visual;
extern std::mutex mutex;
int handle_incoming_packet(Player* player, Packet* packet, std::vector<Player*>* players)
{
int status;
switch(packet->type)
{
case PacketType::packet_connect:
status = handle_packet_connect(player, &packet->data.packet_connect, players);
break;
case PacketType::packet_disconnect:
status = handle_packet_disconnect(player, &packet->data.packet_disconnect, players);
break;
case PacketType::packet_move:
status = handle_packet_move(player, &packet->data.packet_move, players);
break;
case PacketType::packet_ping:
return -1;
break;
case PacketType::packet_server_info:
status = handle_packet_server_info(&packet->data.packet_server_info);
break;
default:
return 2;
}
return status;
}
int handle_packet_connect(Player* player, PacketConnect* packet, std::vector<Player*>* players)
{
int player_fd;
char player_ip[20];
strncpy(player_ip, player->ip, sizeof(player_ip));
player_fd = player->fd;
memcpy(player, (const char*)&packet->player, sizeof(*player));
player->fd = player_fd;
strncpy(player->ip, player_ip, sizeof(player->ip));
memcpy(&packet->player, (const char*)player, sizeof(packet->player));
if(add_player(player, players))
return 1;
if(server)
{
initialize_new_client(player, players); //send the connect packet of all things to client
PacketServerInfo server_info {};
server_info.max_players = max_players;
server_info.fps = fps;
send_packet(player, PacketType::packet_server_info, &player->fd, &server_info);
}
#ifdef DEBUG
std::cout << "PacketConnect start -----------" << std::endl;
print_debug_players(players);
std::cout << "PacketConnect end -----------" << std::endl;
#endif
return 0;
}
int handle_packet_disconnect(Player* player, PacketDisconnect* packet, std::vector<Player*>* players)
{
remove_player(packet->player.sender_id, players);
#ifdef DEBUG
std::cout << "PacketDisconnect start -----------" << std::endl;
print_debug_players(players);
std::cout << "PacketDisconnect end -----------" << std::endl;
#endif
return 0;
}
int handle_packet_move(Player* player, PacketMove* packet, std::vector<Player*>* players)
{
int index = players_contain(players, player->sender_id);
if(index != -1)
{
//movement checks?
player->x = packet->x;
player->y = packet->y;
#ifdef DEBUG
std::cout << "PacketMove start -----------" << std::endl;
print_player_info(player);
std::cout << "PacketMove end -----------" << std::endl;
#endif
}
return 0;
}
int handle_packet_server_info(PacketServerInfo* packet)
{
max_players = packet->max_players;
fps = packet->fps;
return 0;
}
int add_player(Player* player, std::vector<Player*>* players)
{
if(players_contain(players, player->sender_id) == -1)
{
mutex.lock();
players->push_back(player);
if(server && !visual)
std::cout << "[+] New Player! [" << player->name << "-" << player->sender_id << "] (" << player->ip << ")\t(" << players->size() << "/" << max_players << " players)" << std::endl;
fflush(stdout);
mutex.unlock();
}
else
{
if(server && !visual)
std::cout << "[!] A player tried to join with the same player_id as another one! [" << player->name << "-" << player->sender_id << "] (" << player->ip << ")" << std::endl;
}
return 0;
}
int remove_player(unsigned int sender_id, std::vector<Player*>* players)
{
int index = players_contain(players, sender_id);
if(index != -1)
{
mutex.lock();
Player* player = players->at(index);
close(player->fd);
players->erase(players->begin() + index);
if(strlen(player->name))
if(server && !visual)
std::cout << "[-] Player left! [" << player->name << "-" << player->sender_id << "] (" << player->ip << ")\t(" << players->size() << "/" << max_players << " players)" << std::endl;
fflush(stdout);
mutex.unlock();
return 0;
}
return 1;
}
int initialize_new_client(Player* player, std::vector<Player*>* players)
{
for(Player* p : *players)
{
if(p->sender_id != player->sender_id)
{
send_packet(p, PacketType::packet_connect, &player->fd, NULL);
std::cout << "initialize x: " << p->x << ", and y: " << p->y << std::endl;
fflush(stdout);
}
}
return 0;
}
int send_packet(Player* player, PacketType packet_type, int* sockfd, void* extra_data)
{
switch(packet_type)
{
case PacketType::packet_connect:
{
Packet packet {};
packet.type = PacketType::packet_connect;
packet.sender_id = player->sender_id;
packet.data.packet_connect.player = *player;
if(send(*sockfd, (const char*)&packet, sizeof(packet), 0) < 0)
return 1;
break;
}
case PacketType::packet_disconnect:
{
Packet packet {};
packet.sender_id = player->sender_id;
packet.type = PacketType::packet_disconnect;
packet.data.packet_disconnect.player = *player;
if(send(*sockfd, (const char*)&packet, sizeof(packet), 0) < 0)
return 2;
break;
}
case PacketType::packet_move:
{
Packet packet {};
packet.sender_id = player->sender_id;
packet.type = PacketType::packet_move;
packet.data.packet_move.x = player->x;
packet.data.packet_move.y = player->y;
packet.data.packet_move.is_color = player->is_color;
packet.data.packet_move.player = *player;
if(send(*sockfd, (const char*)&packet, sizeof(packet), 0) < 0)
return 3;
break;
}
case PacketType::packet_ping:
{
Packet packet {};
packet.sender_id = 0;
packet.type = PacketType::packet_ping;
if(send(*sockfd, (const char*)&packet, sizeof(packet), 0) < 0)
return 4;
break;
}
case PacketType::packet_server_info:
{
PacketServerInfo* original_packet = (PacketServerInfo*)extra_data;
Packet packet {};
packet.sender_id = 0;
packet.type = PacketType::packet_server_info;
packet.data.packet_server_info.max_players = original_packet->max_players;
packet.data.packet_server_info.fps = original_packet->fps;
if(send(*sockfd, (const char*)&packet, sizeof(packet), 0) < 0)
return 5;
break;
}
default:
return -1;
}
return 0;
}
int ping_server(int* sockfd)
{
return send_packet(NULL, PacketType::packet_ping, sockfd, NULL);
}
int draw_game(std::vector<Player*>* players)
{
clear();
//iscolor as well
mutex.lock();
for(Player* p : *players)
{
mvaddstr(p->y, p->x, "x");
}
mutex.unlock();
refresh();
return 0;
}
int setup_ncurses()
{
initscr();
clear();
noecho();
timeout(0);
curs_set(0);
return 0;
}
int players_contain( std::vector<Player*>* players, unsigned int sender_id)
{
int index = 0;
mutex.lock();
for(Player* p : *players)
{
if(p->sender_id == sender_id)
{
mutex.unlock();
return index;
}
index++;
}
mutex.unlock();
return -1;
}
void print_debug_players( std::vector<Player*>* players)
{
mutex.lock();
for(Player* player : *players)
{
print_player_info(player);
}
mutex.unlock();
}
void print_player_info(Player* player)
{
std::cout << "--------------------------" << std::endl << std::endl;
std::cout << "Name: " << player->name << std::endl;
std::cout << "IP: " << player->ip << std::endl;
std::cout << "x: " << player->x << std::endl;
std::cout << "y: " << player->y << std::endl;
std::cout << "color: " << player->color << std::endl;
std::cout << "is_color: " << player->is_color << std::endl;
std::cout << "fd: " << player->fd << std::endl;
std::cout << "id: " << player->sender_id << std::endl;
std::cout << std::endl << "--------------------------" << std::endl;
fflush(stdout);
}
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