.. _program_listing_file_server_game_events_player_object_interact.c:

Program Listing for File player_object_interact.c
=================================================

|exhale_lsh| :ref:`Return to documentation for file <file_server_game_events_player_object_interact.c>` (``server/game_events/player_object_interact.c``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #include <stdint.h>
   #include <string.h>
   
   #include "handler.h"
   #include "client/client.h"
   
   static constexpr const uint8_t INVALID_OBJECT_ID = 255;
   
   static
   uint8_t get_ressource_id(char *command)
   {
       static const char *ressources[] = {
           "food", "linemate", "deraumere", "sibur", "mendiane",
           "phiras", "thystame"
       };
   
       if (!command)
           return INVALID_OBJECT_ID;
       for (size_t i = 0; i < sizeof(ressources) / sizeof(ressources[0]); i++) {
           if (!strcmp(command, ressources[i]))
               return i;
       }
       return INVALID_OBJECT_ID;
   }
   
   bool player_take_object_handler(server_t *srv, const event_t *event)
   {
       uint8_t object_id = get_ressource_id(event->command[1]);
       client_state_t *cs = event_get_client(srv, event);
       inventory_t *tile = &srv->map[cs->y][cs->x];
   
       if (cs == nullptr)
           return false;
       if (event->arg_count != 2
           || object_id == INVALID_OBJECT_ID
           || tile->qnts[object_id] == 0
       ) {
           append_to_output(srv, cs, "ko\n");
           return true;
       }
       tile->qnts[object_id]--;
       cs->inv.qnts[object_id]++;
       append_to_output(srv, cs, "ok\n");
       send_to_guis(srv, "pin #%hu %hhu %hhu %s\nbct %hhu %hhu %s\n",
           cs->id, cs->x, cs->y, serialize_inventory(&cs->inv),
           cs->x, cs->y, serialize_inventory(tile));
       return true;
   }
   
   bool player_set_object_handler(server_t *srv, const event_t *event)
   {
       client_state_t *cs = event_get_client(srv, event);
       uint8_t object_id = get_ressource_id(event->command[1]);
       inventory_t *tile;
   
       if (cs == nullptr)
           return false;
       tile = &srv->map[cs->y][cs->x];
       if (event->arg_count != 2 || object_id == INVALID_OBJECT_ID)
           return append_to_output(srv, cs, "ko\n"), true;
       if (cs->inv.qnts[object_id] == 0)
           return append_to_output(srv, cs, "ko\n"), true;
       tile->qnts[object_id]++;
       cs->inv.qnts[object_id]--;
       srv->total_item_in_map.qnts[object_id]++;
       append_to_output(srv, cs, "ok\n");
       send_to_guis(srv, "pin #%hu %hhu %hhu %s\nbct %hhu %hhu %s\n",
           cs->id, cs->x, cs->y, serialize_inventory(&cs->inv),
           cs->x, cs->y, serialize_inventory(tile));
       return true;
   }