4 #include "environment.h"
6 #include "server/biomes.h"
7 #include "server/mapgen.h"
8 #include "server/server_map.h"
9 #include "server/trees.h"
12 void mapgen_set_node(v3s32 pos, MapNode node, MapgenStage mgs, List *changed_blocks)
14 MapgenSetNodeArg arg = {
16 .changed_blocks = changed_blocks,
19 map_set_node(server_map.map, pos, node, true, &arg);
22 // generate a block (does not manage block state or threading)
23 void mapgen_generate_block(MapBlock *block, List *changed_blocks)
25 MapBlockExtraData *extra = block->extra;
27 v3s32 block_node_pos = {block->pos.x * MAPBLOCK_SIZE, block->pos.y * MAPBLOCK_SIZE, block->pos.z * MAPBLOCK_SIZE};
29 char *block_data[BIOME_COUNT] = {NULL};
30 bool preprocessed_block[BIOME_COUNT];
32 for (u8 x = 0; x < MAPBLOCK_SIZE; x++) {
33 s32 pos_x = block_node_pos.x + x;
35 for (u8 z = 0; z < MAPBLOCK_SIZE; z++) {
36 v2s32 pos_horizontal = {pos_x, block_node_pos.z + z};
38 s32 default_height = (pnoise2d(U32(pos_horizontal.x) / 32.0, U32(pos_horizontal.y) / 32.0, 0.45, 5, seed + SO_HEIGHT) * 16.0)
39 * (pnoise2d(U32(pos_horizontal.x) / 256.0, U32(pos_horizontal.y) / 256.0, 0.45, 5, seed + SO_HILLYNESS) * 0.5 + 0.5)
43 Biome biome = get_biome(pos_horizontal, &factor);
44 BiomeDef *biome_def = &biomes[biome];
46 if (biome_def->block_data_size > 0 && ! block_data[biome])
47 block_data[biome] = malloc(biome_def->block_data_size);
49 if (biome_def->preprocess_block && ! preprocessed_block[biome]) {
50 biome_def->preprocess_block(block, changed_blocks, block_data[biome]);
51 preprocessed_block[biome] = true;
54 char row_data[biome_def->row_data_size];
56 if (biome_def->preprocess_row)
57 biome_def->preprocess_row(pos_horizontal, factor, row_data, block_data[biome]);
59 s32 height = biome_def->height(pos_horizontal, factor, default_height, row_data, block_data[biome]);
61 for (u8 y = 0; y < MAPBLOCK_SIZE; y++) {
62 v3s32 pos = {pos_horizontal.x, block_node_pos.y + y, pos_horizontal.y};
64 f64 humidity = get_humidity(pos);
65 f64 temperature = get_temperature(pos);
67 s32 diff = pos.y - height;
69 Node node = biome_def->generate(pos, diff, humidity, temperature, factor, block, changed_blocks, row_data, block_data[biome]);
71 if (biome_def->snow && diff <= 1 && temperature < 0.0 && node == NODE_AIR)
75 for (int i = 0; i < NUM_TREES; i++) {
76 TreeDef *def = &tree_definitions[i];
78 if (def->condition(pos, humidity, temperature, biome, factor, block, row_data, block_data)
79 && noise2d(pos.x, pos.z, 0, seed + def->offset) * 0.5 + 0.5 < def->probability
80 && smooth2d(U32(pos.x) / def->spread, U32(pos.z) / def->spread, 0, seed + def->area_offset) * 0.5 + 0.5 < def->area_probability) {
81 def->generate(pos, changed_blocks);
87 pthread_mutex_lock(&block->mtx);
88 if (extra->mgsb.raw.nodes[x][y][z] <= MGS_TERRAIN) {
89 block->data[x][y][z] = map_node_create(node, (Blob) {0, NULL});
90 extra->mgsb.raw.nodes[x][y][z] = MGS_TERRAIN;
92 pthread_mutex_unlock(&block->mtx);
97 for (Biome i = 0; i < BIOME_COUNT; i++) {