1 files changed, 91 insertions, 0 deletions
diff --git a/src/packet/inc/packet.h b/src/packet/inc/packet.h
new file mode 100644
index 0000000..6f555a6
--- /dev/null
+++ b/src/packet/inc/packet.h
@@ -0,0 +1,91 @@
+#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 */