51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
+#include <cmath>
#include "mapgen.h"
#include "voxel.h"
#include "noise.h"
{"dungeons", MG_DUNGEONS},
{"light", MG_LIGHT},
{"decorations", MG_DECORATIONS},
- {NULL, 0}
+ {"biomes", MG_BIOMES},
+ {NULL, 0}
};
FlagDesc flagdesc_gennotify[] = {
//// Built-in mapgens
////
+// Order used here defines the order of appearence in mainmenu.
+// v6 always last to discourage selection.
+// Special mapgens flat, fractal, singlenode, next to last. Of these, singlenode
+// last to discourage selection.
+// Of the remaining, v5 last due to age, v7 first due to being the default.
+// The order of 'enum MapgenType' in mapgen.h must match this order.
static MapgenDesc g_reg_mapgens[] = {
- {"v5", true},
- {"v6", true},
{"v7", true},
+ {"valleys", true},
+ {"carpathian", true},
+ {"v5", true},
{"flat", true},
{"fractal", true},
- {"valleys", true},
{"singlenode", true},
- {"carpathian", true},
+ {"v6", true},
};
STATIC_ASSERT(
}
-Mapgen *Mapgen::createMapgen(MapgenType mgtype, int mgid,
- MapgenParams *params, EmergeManager *emerge)
+Mapgen *Mapgen::createMapgen(MapgenType mgtype, MapgenParams *params,
+ EmergeManager *emerge)
{
switch (mgtype) {
case MAPGEN_CARPATHIAN:
- return new MapgenCarpathian(mgid, (MapgenCarpathianParams *)params, emerge);
+ return new MapgenCarpathian((MapgenCarpathianParams *)params, emerge);
case MAPGEN_FLAT:
- return new MapgenFlat(mgid, (MapgenFlatParams *)params, emerge);
+ return new MapgenFlat((MapgenFlatParams *)params, emerge);
case MAPGEN_FRACTAL:
- return new MapgenFractal(mgid, (MapgenFractalParams *)params, emerge);
+ return new MapgenFractal((MapgenFractalParams *)params, emerge);
case MAPGEN_SINGLENODE:
- return new MapgenSinglenode(mgid, (MapgenSinglenodeParams *)params, emerge);
+ return new MapgenSinglenode((MapgenSinglenodeParams *)params, emerge);
case MAPGEN_V5:
- return new MapgenV5(mgid, (MapgenV5Params *)params, emerge);
+ return new MapgenV5((MapgenV5Params *)params, emerge);
case MAPGEN_V6:
- return new MapgenV6(mgid, (MapgenV6Params *)params, emerge);
+ return new MapgenV6((MapgenV6Params *)params, emerge);
case MAPGEN_V7:
- return new MapgenV7(mgid, (MapgenV7Params *)params, emerge);
+ return new MapgenV7((MapgenV7Params *)params, emerge);
case MAPGEN_VALLEYS:
- return new MapgenValleys(mgid, (MapgenValleysParams *)params, emerge);
+ return new MapgenValleys((MapgenValleysParams *)params, emerge);
default:
- return NULL;
+ return nullptr;
}
}
case MAPGEN_VALLEYS:
return new MapgenValleysParams;
default:
- return NULL;
+ return nullptr;
}
}
this->heightmap = new s16[csize.X * csize.Z];
//// Initialize biome generator
- // TODO(hmmmm): should we have a way to disable biomemanager biomes?
biomegen = m_bmgr->createBiomeGen(BIOMEGEN_ORIGINAL, params->bparams, csize);
biomemap = biomegen->biomemap;
//// Look up some commonly used content
c_stone = ndef->getId("mapgen_stone");
- c_desert_stone = ndef->getId("mapgen_desert_stone");
- c_sandstone = ndef->getId("mapgen_sandstone");
c_water_source = ndef->getId("mapgen_water_source");
c_river_water_source = ndef->getId("mapgen_river_water_source");
c_lava_source = ndef->getId("mapgen_lava_source");
+ c_cobble = ndef->getId("mapgen_cobble");
- // Fall back to more basic content if not defined
- // river_water_source cannot fallback to water_source because river water
- // needs to be non-renewable and have a short flow range.
- if (c_desert_stone == CONTENT_IGNORE)
- c_desert_stone = c_stone;
- if (c_sandstone == CONTENT_IGNORE)
- c_sandstone = c_stone;
-
- //// Content used for dungeon generation
- c_cobble = ndef->getId("mapgen_cobble");
- c_mossycobble = ndef->getId("mapgen_mossycobble");
- c_stair_cobble = ndef->getId("mapgen_stair_cobble");
- c_stair_desert_stone = ndef->getId("mapgen_stair_desert_stone");
- c_sandstonebrick = ndef->getId("mapgen_sandstonebrick");
- c_stair_sandstone_block = ndef->getId("mapgen_stair_sandstone_block");
-
- // Fall back to more basic content if not defined
- if (c_mossycobble == CONTENT_IGNORE)
- c_mossycobble = c_cobble;
- if (c_stair_cobble == CONTENT_IGNORE)
- c_stair_cobble = c_cobble;
- if (c_stair_desert_stone == CONTENT_IGNORE)
- c_stair_desert_stone = c_desert_stone;
- if (c_sandstonebrick == CONTENT_IGNORE)
- c_sandstonebrick = c_sandstone;
- if (c_stair_sandstone_block == CONTENT_IGNORE)
- c_stair_sandstone_block = c_sandstonebrick;
+ // Fall back to more basic content if not defined.
+ // Lava falls back to water as both are suitable as cave liquids.
+ if (c_lava_source == CONTENT_IGNORE)
+ c_lava_source = c_water_source;
}
}
-void MapgenBasic::generateBiomes(MgStoneType *mgstone_type,
- content_t *biome_stone)
+void MapgenBasic::generateBiomes()
{
// can't generate biomes without a biome generator!
assert(biomegen);
const v3s16 &em = vm->m_area.getExtent();
u32 index = 0;
- MgStoneType stone_type = MGSTONE_OTHER;
- content_t c_biome_stone = c_stone;
noise_filler_depth->perlinMap2D(node_min.X, node_min.Z);
for (s16 z = node_min.Z; z <= node_max.Z; z++)
for (s16 x = node_min.X; x <= node_max.X; x++, index++) {
Biome *biome = NULL;
+ biome_t water_biome_index = 0;
u16 depth_top = 0;
u16 base_filler = 0;
u16 depth_water_top = 0;
// (Re)calculate biome
biome = biomegen->getBiomeAtIndex(index, v3s16(x, y, z));
+ // Add biome to biomemap at first stone surface detected
if (biomemap[index] == BIOME_NONE && is_stone_surface)
biomemap[index] = biome->index;
+ // Store biome of first water surface detected, as a fallback
+ // entry for the biomemap.
+ if (water_biome_index == 0 && is_water_surface)
+ water_biome_index = biome->index;
+
depth_top = biome->depth_top;
base_filler = MYMAX(depth_top +
biome->depth_filler +
depth_water_top = biome->depth_water_top;
depth_riverbed = biome->depth_riverbed;
biome_y_min = biome->min_pos.Y;
-
- // Detect stone type for dungeons during every biome calculation.
- // If none detected the last selected biome stone is chosen.
- if (biome->c_stone == c_stone)
- stone_type = MGSTONE_STONE;
- else if (biome->c_stone == c_desert_stone)
- stone_type = MGSTONE_DESERT_STONE;
- else if (biome->c_stone == c_sandstone)
- stone_type = MGSTONE_SANDSTONE;
-
- c_biome_stone = biome->c_stone;
}
if (c == c_stone) {
VoxelArea::add_y(em, vi, -1);
}
+ // If no stone surface detected in mapchunk column and a water surface
+ // biome fallback exists, add it to the biomemap. This avoids water
+ // surface decorations failing in deep water.
+ if (biomemap[index] == BIOME_NONE && water_biome_index != 0)
+ biomemap[index] = water_biome_index;
}
-
- *mgstone_type = stone_type;
- *biome_stone = c_biome_stone;
}
if (biome->c_dust == CONTENT_IGNORE)
continue;
+ // Check if mapchunk above has generated, if so, drop dust from 16 nodes
+ // above current mapchunk top, above decorations that will extend above
+ // the current mapchunk. If the mapchunk above has not generated, it
+ // will provide this required dust when it does.
u32 vi = vm->m_area.index(x, full_node_max.Y, z);
content_t c_full_max = vm->m_data[vi].getContent();
s16 y_start;
content_t c = vm->m_data[vi].getContent();
NodeDrawType dtype = ndef->get(c).drawtype;
- // Only place on walkable cubic non-liquid nodes
- // Dust check needed due to vertical overgeneration
+ // Only place on cubic, walkable, non-dust nodes.
+ // Dust check needed due to avoid double layer of dust caused by
+ // dropping dust from 16 nodes above mapchunk top.
if ((dtype == NDT_NORMAL ||
+ dtype == NDT_ALLFACES ||
dtype == NDT_ALLFACES_OPTIONAL ||
- dtype == NDT_GLASSLIKE_FRAMED_OPTIONAL ||
dtype == NDT_GLASSLIKE ||
dtype == NDT_GLASSLIKE_FRAMED ||
- dtype == NDT_ALLFACES) &&
+ dtype == NDT_GLASSLIKE_FRAMED_OPTIONAL) &&
ndef->get(c).walkable && c != biome->c_dust) {
VoxelArea::add_y(em, vi, 1);
vm->m_data[vi] = MapNode(biome->c_dust);
}
-void MapgenBasic::generateCaves(s16 max_stone_y, s16 large_cave_depth)
+void MapgenBasic::generateCavesNoiseIntersection(s16 max_stone_y)
{
- if (max_stone_y < node_min.Y)
+ if (node_min.Y > max_stone_y)
return;
CavesNoiseIntersection caves_noise(ndef, m_bmgr, csize,
&np_cave1, &np_cave2, seed, cave_width);
caves_noise.generateCaves(vm, node_min, node_max, biomemap);
+}
+
- if (node_max.Y > large_cave_depth)
+void MapgenBasic::generateCavesRandomWalk(s16 max_stone_y, s16 large_cave_depth)
+{
+ if (node_min.Y > max_stone_y || node_max.Y > large_cave_depth)
return;
PseudoRandom ps(blockseed + 21343);
u32 bruises_count = ps.range(0, 2);
+
for (u32 i = 0; i < bruises_count; i++) {
CavesRandomWalk cave(ndef, &gennotify, seed, water_level,
c_water_source, c_lava_source, lava_depth, biomegen);
}
-bool MapgenBasic::generateCaverns(s16 max_stone_y)
+bool MapgenBasic::generateCavernsNoise(s16 max_stone_y)
{
if (node_min.Y > max_stone_y || node_min.Y > cavern_limit)
return false;
}
-void MapgenBasic::generateDungeons(s16 max_stone_y,
- MgStoneType stone_type, content_t biome_stone)
+void MapgenBasic::generateDungeons(s16 max_stone_y)
{
if (max_stone_y < node_min.Y)
return;
- DungeonParams dp;
-
- dp.seed = seed;
-
- dp.only_in_ground = true;
- dp.corridor_len_min = 1;
- dp.corridor_len_max = 13;
- dp.rooms_min = 2;
- dp.rooms_max = 16;
- dp.y_min = -MAX_MAP_GENERATION_LIMIT;
- dp.y_max = MAX_MAP_GENERATION_LIMIT;
+ u16 num_dungeons = std::fmax(std::floor(
+ NoisePerlin3D(&np_dungeons, node_min.X, node_min.Y, node_min.Z, seed)), 0.0f);
+ if (num_dungeons == 0)
+ return;
- dp.np_density = nparams_dungeon_density;
- dp.np_alt_wall = nparams_dungeon_alt_wall;
+ PseudoRandom ps(blockseed + 70033);
+
+ DungeonParams dp;
- switch (stone_type) {
- default:
- case MGSTONE_STONE:
- dp.c_wall = c_cobble;
- dp.c_alt_wall = c_mossycobble;
- dp.c_stair = c_stair_cobble;
-
- dp.diagonal_dirs = false;
- dp.holesize = v3s16(1, 2, 1);
- dp.room_size_min = v3s16(4, 4, 4);
- dp.room_size_max = v3s16(8, 6, 8);
- dp.room_size_large_min = v3s16(8, 8, 8);
- dp.room_size_large_max = v3s16(16, 16, 16);
- dp.notifytype = GENNOTIFY_DUNGEON;
- break;
- case MGSTONE_DESERT_STONE:
- dp.c_wall = c_desert_stone;
- dp.c_alt_wall = CONTENT_IGNORE;
- dp.c_stair = c_stair_desert_stone;
-
- dp.diagonal_dirs = true;
- dp.holesize = v3s16(2, 3, 2);
- dp.room_size_min = v3s16(6, 9, 6);
- dp.room_size_max = v3s16(10, 11, 10);
- dp.room_size_large_min = v3s16(10, 13, 10);
- dp.room_size_large_max = v3s16(18, 21, 18);
- dp.notifytype = GENNOTIFY_TEMPLE;
- break;
- case MGSTONE_SANDSTONE:
- dp.c_wall = c_sandstonebrick;
- dp.c_alt_wall = CONTENT_IGNORE;
- dp.c_stair = c_stair_sandstone_block;
-
- dp.diagonal_dirs = false;
- dp.holesize = v3s16(2, 2, 2);
- dp.room_size_min = v3s16(6, 4, 6);
- dp.room_size_max = v3s16(10, 6, 10);
- dp.room_size_large_min = v3s16(10, 8, 10);
- dp.room_size_large_max = v3s16(18, 16, 18);
- dp.notifytype = GENNOTIFY_DUNGEON;
- break;
- case MGSTONE_OTHER:
- dp.c_wall = biome_stone;
- dp.c_alt_wall = biome_stone;
- dp.c_stair = biome_stone;
-
- dp.diagonal_dirs = false;
- dp.holesize = v3s16(1, 2, 1);
- dp.room_size_min = v3s16(4, 4, 4);
- dp.room_size_max = v3s16(8, 6, 8);
- dp.room_size_large_min = v3s16(8, 8, 8);
- dp.room_size_large_max = v3s16(16, 16, 16);
- dp.notifytype = GENNOTIFY_DUNGEON;
- break;
+ dp.np_alt_wall =
+ NoiseParams(-0.4, 1.0, v3f(40.0, 40.0, 40.0), 32474, 6, 1.1, 2.0);
+
+ dp.seed = seed;
+ dp.num_dungeons = num_dungeons;
+ dp.only_in_ground = true;
+ dp.num_rooms = ps.range(2, 16);
+ dp.room_size_min = v3s16(6, 5, 6);
+ dp.room_size_max = v3s16(10, 6, 10);
+ dp.room_size_large_min = v3s16(10, 8, 10);
+ dp.room_size_large_max = v3s16(18, 16, 18);
+ dp.large_room_chance = (ps.range(1, 4) == 1) ? 1 : 0;
+ dp.holesize = v3s16(2, 3, 2);
+ dp.corridor_len_min = 1;
+ dp.corridor_len_max = 13;
+ dp.diagonal_dirs = ps.range(1, 12) == 1;
+ dp.notifytype = GENNOTIFY_DUNGEON;
+
+ // Get biome at mapchunk midpoint
+ v3s16 chunk_mid = node_min + (node_max - node_min) / v3s16(2, 2, 2);
+ Biome *biome = (Biome *)biomegen->getBiomeAtPoint(chunk_mid);
+
+ // Use biome-defined dungeon nodes if defined
+ if (biome->c_dungeon != CONTENT_IGNORE) {
+ dp.c_wall = biome->c_dungeon;
+ // If 'node_dungeon_alt' is not defined by biome, it and dp.c_alt_wall
+ // become CONTENT_IGNORE which skips the alt wall node placement loop in
+ // dungeongen.cpp.
+ dp.c_alt_wall = biome->c_dungeon_alt;
+ // Stairs fall back to 'c_dungeon' if not defined by biome
+ dp.c_stair = (biome->c_dungeon_stair != CONTENT_IGNORE) ?
+ biome->c_dungeon_stair : biome->c_dungeon;
+ // Fallback to using cobble mapgen alias if defined
+ } else if (c_cobble != CONTENT_IGNORE) {
+ dp.c_wall = c_cobble;
+ dp.c_alt_wall = CONTENT_IGNORE;
+ dp.c_stair = c_cobble;
+ // Fallback to using biome-defined stone
+ } else {
+ dp.c_wall = biome->c_stone;
+ dp.c_alt_wall = CONTENT_IGNORE;
+ dp.c_stair = biome->c_stone;
}
DungeonGen dgen(ndef, &gennotify, &dp);