1 #ifndef INCLUDE_CAVE_PARSE_H
2 #define INCLUDE_CAVE_PARSE_H
3 
4 typedef struct
5 {
6    unsigned char block;
7    unsigned char data;
8    unsigned char light:4;
9    unsigned char skylight:4;
10 } raw_block;
11 
12 // this is the old fully-decoded chunk
13 typedef struct
14 {
15    int xpos, zpos, max_y;
16    int height[16][16];
17    raw_block rb[16][16][256]; // [z][x][y] which becomes [y][x][z] in stb
18 } chunk;
19 
20 chunk *get_decoded_chunk(int chunk_x, int chunk_z);
21 
22 #define NUM_SEGMENTS  16
23 typedef struct
24 {
25    int max_y, xpos, zpos;
26 
27    unsigned char *blockdata[NUM_SEGMENTS];
28    unsigned char *data[NUM_SEGMENTS];
29    unsigned char *skylight[NUM_SEGMENTS];
30    unsigned char *light[NUM_SEGMENTS];
31 
32    void *pointer_to_free;
33 
34    int refcount; // this allows multi-threaded building without wrapping in ANOTHER struct
35 } fast_chunk;
36 
37 fast_chunk *get_decoded_fastchunk(int chunk_x, int chunk_z); // cache, never call free()
38 
39 fast_chunk *get_decoded_fastchunk_uncached(int chunk_x, int chunk_z);
40 
41 #endif
42