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#ifndef PACKET_H
#define PACKET_H
#include <game.h>
#include <net.h>
#include <stdbool.h>
#include <stddef.h>
#ifdef __cplusplus
extern "C"
{
#endif
union packet
{
struct packet_common
{
enum packet_type
{
PACKET_TYPE_NAME,
PACKET_TYPE_CHAT,
PACKET_TYPE_READY,
MAX_PACKET_TYPES
} type;
} common;
struct packet_name
{
struct packet_common common;
const char *name;
} name;
struct packet_chat
{
struct packet_common common;
const char *msg;
} chat;
struct packet_ready
{
struct packet_common common;
bool ready;
} ready;
};
enum {PACKET_MAX_MESSAGE_LEN = 64};
struct packet_ctx
{
struct net_host *host;
void (*cb)(net_peer, const union packet *, void *);
void *arg;
};
struct packet_input
{
union packet p;
size_t body_i;
enum
{
PACKET_STATE_HEADER,
PACKET_STATE_BODY
} state;
union packet_data
{
struct packet_ctx_name
{
size_t len;
char name[GAME_PLAYER_NAME_LEN];
} name;
struct packet_ctx_chat
{
size_t len;
char msg[PACKET_MAX_MESSAGE_LEN];
} chat;
} data;
};
int packet_send(const struct packet_ctx *h, net_peer peer, const union packet *pkt);
int packet_feed(const struct packet_ctx *h, net_peer p,
struct packet_input *in, const void *buf, size_t n);
#ifdef __cplusplus
}
#endif
#endif /* PACKET_H */
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