Properly shut down the networking API.

src/game/instance/game_instance.c

@@ -46,6 +46,7 @@ bool game_instance_host_session(Game_Instance *instance, const Game_Session_Sett
         uint16_t host_player_id = 0xFFFF;
         if(!networking_try_host(&instance->game_networking, instance->game_session, settings, &host_player_id)) {
             printf("Failed to host session.\n");
+            
             free(instance->game_session);
             instance->game_session = NULL;
             return false;
@@ -82,10 +83,11 @@ bool game_instance_join_session(Game_Instance *instance, const char *session_id)
         return false;
     }
 
-    instance->game_session = (Game_Session *)calloc(1, sizeof(Game_Session)); // LEAK
+    instance->game_session = (Game_Session *)calloc(1, sizeof(Game_Session));
 
     if(!networking_try_join(&instance->game_networking, instance->game_session, session_id)) {
         free(instance->game_session);
+        instance->game_session = NULL;
         return false;
     }
 

src/game/presentation/states/state_ingame.c

@@ -99,6 +99,17 @@ uint32_t floor_texture_variant(uint32_t x, uint32_t y, uint32_t seed, uint32_t n
     return (wang_hash(x * 73856093u ^ y * 19349663u ^ seed)) % num_variants;
 }
 
+Color get_tint_for_player_id(uint16_t player_id) {
+    switch(player_id) {
+        case 0: {
+            return (Color) { 255, 135, 102, 255 };
+        }
+        default: {
+            return (Color) { 82, 33, 110, 255 };
+        }
+    }
+}
+
 #define SHADOW_ALPHA 64
 
 static void state_render(Presentation_State *state) {
@@ -151,7 +162,21 @@ static void state_render(Presentation_State *state) {
 
                 switch(entity->type) {
                     case Entity_Type_Snake_Head: {
-                        Color tint = (Color) { 255, 135, 102, 255 }; // TODO: SS - Get tint based on player ID.
+
+                        Color tint = (Color) { 255, 255, 255, 255 };
+                        // Set the snake's tint based on player-index.
+                        for(uint16_t i = 0; i < sim_world->max_players; i++) {
+                            Simulation_Player *player = &sim_world->players[i];
+                            if(!player->active) {
+                                continue;
+                            }
+
+                            if(player->entity_id == entity->id) {
+                                tint = get_tint_for_player_id(i); // NOTE: SS - It's more like player-index. This needs to change if they're not sorted (but they are at the moment and I don't really plan on switching that up.)
+                                break;
+                            }
+                        }
+
                         Vector2 origin = (Vector2) { GRID_CELL_SIZE/2, GRID_CELL_SIZE/2 };
 
                         Entity *e = entity;

src/game/presentation/states/state_main_menu.c

@@ -75,8 +75,6 @@ static void state_render(Presentation_State *state) {
         case Main_Menu_Mode_Singleplayer: {
             ctx->mode = Main_Menu_Mode_Game_Setup;
             game_session_init_default_settings(false, &ctx->session_settings);
-            ctx->ingame_ctx->game_instance = ctx->game_instance;
-            presentation_state_machine_go_to(&presentation_state_ingame);
 
             break;
         }
@@ -89,12 +87,7 @@ static void state_render(Presentation_State *state) {
                 ctx->mode = Main_Menu_Mode_Multiplayer_Join;
 
                 memset(&ctx->session_id_input, 0, sizeof(ctx->session_id_input));
-                ctx->session_id_input[0] = 'A';
-                ctx->session_id_input[1] = 'B';
-                ctx->session_id_input[2] = 'C';
-                ctx->session_id_input[3] = 'D';
-                ctx->session_id_input[4] = 'E';
-                ctx->session_id_input[5] = 'F';
+                // snprintf(&ctx->session_id_input[0], sizeof(ctx->session_id_input) + 1, "ABCDEF");
             }
             if (GuiButton((Rectangle){ 64, 64 + (BUTTON_HEIGHT * 2), 128, BUTTON_HEIGHT }, "Back to Main Menu")) {
                 ctx->mode = Main_Menu_Mode_Home;
@@ -136,7 +129,7 @@ static void state_render(Presentation_State *state) {
             int pressed_button_index = GuiTextInputBox(
                 (Rectangle) { 64, 64, 256, 128 }, // Bounds
                 "Session-ID", // Title
-                NULL, // Message
+                "6 characters expected. (ABCDEF)", // Message
                 "Join", // Buttons
                 &ctx->session_id_input[0], // Text
                 sizeof(ctx->session_id_input) + 1, // Text max size

src/game/session/networking.c

@@ -82,6 +82,17 @@ static inline bool setup_api(Game_Networking *networking) {
     return true;
 }
 
+static inline bool shutdown_api(Game_Networking *networking) {
+    if(networking->api == NULL) {
+        return false;
+    }
+
+    mp_api_destroy(networking->api);
+    networking->api = NULL;
+
+    return true;
+}
+
 static bool start_listening(Game_Networking *networking) {
     assert(networking != NULL);
     assert(networking->api != NULL);
@@ -130,7 +141,7 @@ bool networking_try_host(Game_Networking *networking, Game_Session *session, Gam
     );
     if(host_result != MP_API_OK) {
         printf("Failed to host; Got result: %i.\n", host_result);
-        // TODO: SS - Shutdown API.
+        shutdown_api(networking);
         return false;
     }
     
@@ -192,7 +203,7 @@ bool networking_try_join(Game_Networking *networking, Game_Session *session, con
         &received_json // Received JSON-data.
     );
     if(join_result != MP_API_OK) {
-        // TODO: SS - Shutdown API.
+        shutdown_api(networking);
         printf("Failed to join; Got result: %i.\n", join_result);
         return false;
     }
@@ -215,7 +226,6 @@ bool networking_try_join(Game_Networking *networking, Game_Session *session, con
         json_decref(received_json);
     }
     
-    // TODO: SS - Stop listening.
     assert(start_listening(networking));
 
     // TODO: SS - Set up session based on what we got in the json.
@@ -242,8 +252,7 @@ bool networking_stop(Game_Networking *networking) {
     assert(stop_listening(networking));
     networking->listener_id = 0;
     
-    mp_api_destroy(networking->api);
-    networking->api = NULL;
+    shutdown_api(networking);
     networking->game_session = NULL;
     networking->is_host = false;
 

src/game/shared/entity.h

@@ -25,7 +25,7 @@ typedef enum {
 typedef struct {
     bool active;
 
-    // TODO: SS - Maybe add an ID here.
+    Entity_ID id;
 
     Entity_Type type;
     

src/game/shared/game_world.c

@@ -78,6 +78,7 @@ bool game_world_create_entity(Game_World *world, Entity_Type type, uint16_t x, u
     
     world->entities[id] = (Entity) {
         .active = true,
+        .id = id,
         .type = type,
         .child = INVALID_ENTITY_ID
     };
@@ -98,7 +99,7 @@ void game_world_destroy_entity(Game_World *world, Entity_ID entity_id) {
         entity_id
     );
     assert(entity != NULL);
-    entity->active = false;
+    memset(&entity, 0, sizeof(Entity));
 
     Grid_Cell *cell = grid_get_cell(&world->grid, entity->x, entity->y);
     assert(cell != NULL);