src/client/client_terrain.h

   1 #ifndef _CLIENT_TERRAIN_H_
   2 #define _CLIENT_TERRAIN_H_
   3
   4 #include <stdatomic.h>
   5 #include <stdbool.h>
   6 #include "client/model.h"
   7 #include "terrain.h"
   8 #include "types.h"
   9
  10 #define CHUNK_MODE_NOCREATE 2
  11
  12 typedef enum {
  13         CHUNK_STATE_INIT,
  14         CHUNK_STATE_RECV,
  15         CHUNK_STATE_DEPS,
  16         CHUNK_STATE_DIRTY,
  17         CHUNK_STATE_CLEAN,
  18 } TerrainChunkState;
  19
  20 typedef struct {
  21         bool queue;
  22         TerrainChunkState state;
  23         pthread_rwlock_t lock_state;
  24
  25         // accessed only by recv thread
  26         TerrainChunk *neighbors[6];
  27         unsigned int num_neighbors;
  28
  29         // write is protected by mtx_model, read is atomic
  30         atomic_bool depends[6];
  31
  32         bool has_model;
  33         Model *model;
  34         pthread_mutex_t mtx_model;
  35
  36         // protected by chunk data lock
  37         bool empty;
  38
  39         // accessed only by sync thread
  40         u64 sync;
  41 } TerrainChunkMeta;
  42
  43 extern Terrain *client_terrain;
  44
  45 void client_terrain_init();                                          // called on startup
  46 void client_terrain_deinit();                                        // called on shutdown
  47 void client_terrain_set_load_distance(u32 dist);                     // update load distance
  48 u32 client_terrain_get_load_distance();                              // return load distance
  49 void client_terrain_start();                                         // start meshgen and sync threads
  50 void client_terrain_stop();                                          // stop meshgen and sync threads
  51 void client_terrain_meshgen_task(TerrainChunk *chunk, bool changed); // enqueue chunk to mesh update queue
  52 void client_terrain_receive_chunk(void *peer, ToClientChunk *pkt);   // callback to deserialize chunk from network
  53
  54 #endif