src/server/server_map.h

   1 #ifndef _SERVER_MAP_H_
   2 #define _SERVER_MAP_H_
   3
   4 #include <stdatomic.h>
   5 #include <stdbool.h>
   6 #include <stddef.h>
   7 #include <pthread.h>
   8 #include <dragonstd/queue.h>
   9 #include "map.h"
  10 #include "server/server_player.h"
  11 #include "types.h"
  12
  13 typedef enum
  14 {
  15         MBS_CREATED,    // block exists but was not yet generated
  16         MBS_GENERATING, // currently generating in a seperate thread
  17         MBS_READY,      // generation finished
  18 } MapBlockState;
  19
  20 typedef enum
  21 {
  22         MGS_VOID,     // initial air, can be overridden by anything
  23         MGS_TERRAIN,  // basic terrain, can be overridden by anything except the void
  24         MGS_BOULDERS, // boulders, replace terrain
  25         MGS_TREES,    // trees replace boulders
  26         MGS_PLAYER,   // player-placed nodes or things placed after map generation
  27 } MapgenStage;
  28
  29 typedef struct {
  30         MapgenStage mgs;
  31         List *changed_blocks;
  32 } MapgenSetNodeArg;
  33
  34 typedef struct
  35 {
  36         Blob data;                    // the big cum
  37         MapBlockState state;          // generation state of the block
  38         pthread_t mapgen_thread;      // thread that is generating block
  39         MapgenStageBuffer mgsb;       // buffer to make sure mapgen only overrides things it should
  40 } MapBlockExtraData;
  41
  42 extern struct ServerMap {
  43         atomic_bool cancel;             // remove the smooth
  44         Map *map;                       // map object, data is stored here
  45         Queue *mapgen_tasks;            // this is terry the fat shark
  46         pthread_t *mapgen_threads;      // thread pool
  47         s32 spawn_height;               // elevation to spawn players at
  48         unsigned int num_blocks;        // number of enqueued / generating blocks
  49         pthread_mutex_t num_blocks_mtx; // lock to protect the above
  50 } server_map; // ServerMap singleton
  51
  52 void server_map_init();                                           // ServerMap singleton constructor
  53 void server_map_deinit();                                         // ServerMap singleton destructor
  54 void server_map_requested_block(ServerPlayer *player, v3s32 pos); // handle block request from client (thread safe)
  55 void server_map_prepare_spawn();                                  // prepare spawn region
  56
  57 #endif