};
-MapgenV5::MapgenV5(int mapgenid, MapgenParams *params, EmergeManager *emerge_) {
- this->generating = false;
- this->id = mapgenid;
- this->emerge = emerge_;
- this->bmgr = emerge->biomemgr;
-
- this->seed = (int)params->seed;
- this->water_level = params->water_level;
- this->flags = params->flags;
- this->gennotify = emerge->gennotify;
-
- this->csize = v3s16(1, 1, 1) * params->chunksize * MAP_BLOCKSIZE;
+MapgenV5::MapgenV5(int mapgenid, MapgenParams *params, EmergeManager *emerge)
+ : Mapgen(mapgenid, params, emerge)
+{
+ this->m_emerge = emerge;
+ this->bmgr = emerge->biomemgr;
// amount of elements to skip for the next index
// for noise/height/biome maps (not vmanip)
this->ystride = csize.X;
- this->zstride = csize.X * csize.Y;
+ this->zstride = csize.X * (csize.Y + 2);
this->biomemap = new u8[csize.X * csize.Z];
this->heightmap = new s16[csize.X * csize.Z];
MapgenV5Params *sp = (MapgenV5Params *)params->sparams;
-
- this->spflags = sp->spflags;
+ this->spflags = sp->spflags;
// Terrain noise
noise_filler_depth = new Noise(&sp->np_filler_depth, seed, csize.X, csize.Z);
noise_height = new Noise(&sp->np_height, seed, csize.X, csize.Z);
// 3D terrain noise
- noise_cave1 = new Noise(&sp->np_cave1, seed, csize.X, csize.Y, csize.Z);
- noise_cave2 = new Noise(&sp->np_cave2, seed, csize.X, csize.Y, csize.Z);
- noise_ground = new Noise(&sp->np_ground, seed, csize.X, csize.Y, csize.Z);
- noise_crumble = new Noise(&sp->np_crumble, seed, csize.X, csize.Y, csize.Z);
- noise_wetness = new Noise(&sp->np_wetness, seed, csize.X, csize.Y, csize.Z);
+ noise_cave1 = new Noise(&sp->np_cave1, seed, csize.X, csize.Y + 2, csize.Z);
+ noise_cave2 = new Noise(&sp->np_cave2, seed, csize.X, csize.Y + 2, csize.Z);
+ noise_ground = new Noise(&sp->np_ground, seed, csize.X, csize.Y + 2, csize.Z);
+ noise_crumble = new Noise(&sp->np_crumble, seed, csize.X, csize.Y + 2, csize.Z);
+ noise_wetness = new Noise(&sp->np_wetness, seed, csize.X, csize.Y + 2, csize.Z);
// Biome noise
- noise_heat = new Noise(bmgr->np_heat, seed, csize.X, csize.Z);
- noise_humidity = new Noise(bmgr->np_humidity, seed, csize.X, csize.Z);
+ noise_heat = new Noise(¶ms->np_biome_heat, seed, csize.X, csize.Z);
+ noise_humidity = new Noise(¶ms->np_biome_humidity, seed, csize.X, csize.Z);
//// Resolve nodes to be used
INodeDefManager *ndef = emerge->ndef;
}
-MapgenV5::~MapgenV5() {
+MapgenV5::~MapgenV5()
+{
delete noise_filler_depth;
delete noise_factor;
delete noise_height;
delete noise_heat;
delete noise_humidity;
-
+
delete[] heightmap;
delete[] biomemap;
}
-MapgenV5Params::MapgenV5Params() {
+MapgenV5Params::MapgenV5Params()
+{
spflags = MGV5_BLOBS;
- np_filler_depth = NoiseParams(0, 1, v3f(150, 150, 150), 261, 4, 0.7);
- np_factor = NoiseParams(0, 1, v3f(250, 250, 250), 920381, 3, 0.45);
- np_height = NoiseParams(0, 10, v3f(250, 250, 250), 84174, 4, 0.5);
- np_cave1 = NoiseParams(0, 6, v3f(50, 50, 50), 52534, 4, 0.5);
- np_cave2 = NoiseParams(0, 6, v3f(50, 50, 50), 10325, 4, 0.5);
- np_ground = NoiseParams(0, 40, v3f(80, 80, 80), 983240, 4, 0.55);
- np_crumble = NoiseParams(0, 1, v3f(20, 20, 20), 34413, 3, 1.3);
- np_wetness = NoiseParams(0, 1, v3f(40, 40, 40), 32474, 4, 1.1);
+ np_filler_depth = NoiseParams(0, 1, v3f(150, 150, 150), 261, 4, 0.7, 2.0);
+ np_factor = NoiseParams(0, 1, v3f(250, 250, 250), 920381, 3, 0.45, 2.0);
+ np_height = NoiseParams(0, 10, v3f(250, 250, 250), 84174, 4, 0.5, 2.0);
+ np_cave1 = NoiseParams(0, 12, v3f(50, 50, 50), 52534, 4, 0.5, 2.0);
+ np_cave2 = NoiseParams(0, 12, v3f(50, 50, 50), 10325, 4, 0.5, 2.0);
+ np_ground = NoiseParams(0, 40, v3f(80, 80, 80), 983240, 4, 0.55, 2.0, NOISE_FLAG_EASED);
+ np_crumble = NoiseParams(0, 1, v3f(20, 20, 20), 34413, 3, 1.3, 2.0, NOISE_FLAG_EASED);
+ np_wetness = NoiseParams(0, 1, v3f(40, 40, 40), 32474, 4, 1.1, 2.0);
}
-// Current caves noise scale default is 6 to compensate for new eased 3d noise amplitude
-
// Scaling the output of the noise function affects the overdrive of the
// contour function, which affects the shape of the output considerably.
-//#define CAVE_NOISE_SCALE 12.0 < original default
-//#define CAVE_NOISE_SCALE 10.0
-//#define CAVE_NOISE_SCALE 7.5
-//#define CAVE_NOISE_SCALE 5.0
-//#define CAVE_NOISE_SCALE 1.0
+// Two original MT 0.3 parameters for non-eased noise:
-//#define CAVE_NOISE_THRESHOLD (2.5/CAVE_NOISE_SCALE)
-//#define CAVE_NOISE_THRESHOLD (1.5/CAVE_NOISE_SCALE) < original and current code
+//#define CAVE_NOISE_SCALE 12.0
+//#define CAVE_NOISE_THRESHOLD (1.5/CAVE_NOISE_SCALE)
-void MapgenV5Params::readParams(Settings *settings) {
+void MapgenV5Params::readParams(Settings *settings)
+{
settings->getFlagStrNoEx("mgv5_spflags", spflags, flagdesc_mapgen_v5);
settings->getNoiseParams("mgv5_np_filler_depth", np_filler_depth);
}
-void MapgenV5Params::writeParams(Settings *settings) {
+void MapgenV5Params::writeParams(Settings *settings)
+{
settings->setFlagStr("mgv5_spflags", spflags, flagdesc_mapgen_v5, (u32)-1);
settings->setNoiseParams("mgv5_np_filler_depth", np_filler_depth);
}
-void MapgenV5::makeChunk(BlockMakeData *data) {
+int MapgenV5::getGroundLevelAtPoint(v2s16 p)
+{
+ //TimeTaker t("getGroundLevelAtPoint", NULL, PRECISION_MICRO);
+
+ float f = 0.55 + NoisePerlin2D(&noise_factor->np, p.X, p.Y, seed);
+ if(f < 0.01)
+ f = 0.01;
+ else if(f >= 1.0)
+ f *= 1.6;
+ float h = water_level + NoisePerlin2D(&noise_height->np, p.X, p.Y, seed);
+
+ s16 search_top = water_level + 15;
+ s16 search_base = water_level;
+ // Use these 2 lines instead for a slower search returning highest ground level:
+ //s16 search_top = h + f * noise_ground->np->octaves * noise_ground->np->scale;
+ //s16 search_base = h - f * noise_ground->np->octaves * noise_ground->np->scale;
+
+ s16 level = -31000;
+ for (s16 y = search_top; y >= search_base; y--) {
+ float n_ground = NoisePerlin3D(&noise_ground->np, p.X, y, p.Y, seed);
+ if(n_ground * f > y - h) {
+ if(y >= search_top - 7)
+ break;
+ else
+ level = y;
+ break;
+ }
+ }
+
+ //printf("getGroundLevelAtPoint: %dus\n", t.stop());
+ return level;
+}
+
+
+void MapgenV5::makeChunk(BlockMakeData *data)
+{
assert(data->vmanip);
assert(data->nodedef);
assert(data->blockpos_requested.X >= data->blockpos_min.X &&
- data->blockpos_requested.Y >= data->blockpos_min.Y &&
- data->blockpos_requested.Z >= data->blockpos_min.Z);
+ data->blockpos_requested.Y >= data->blockpos_min.Y &&
+ data->blockpos_requested.Z >= data->blockpos_min.Z);
assert(data->blockpos_requested.X <= data->blockpos_max.X &&
- data->blockpos_requested.Y <= data->blockpos_max.Y &&
- data->blockpos_requested.Z <= data->blockpos_max.Z);
-
+ data->blockpos_requested.Y <= data->blockpos_max.Y &&
+ data->blockpos_requested.Z <= data->blockpos_max.Z);
+
generating = true;
- vm = data->vmanip;
+ vm = data->vmanip;
ndef = data->nodedef;
//TimeTaker t("makeChunk");
-
+
v3s16 blockpos_min = data->blockpos_min;
v3s16 blockpos_max = data->blockpos_max;
node_min = blockpos_min * MAP_BLOCKSIZE;
full_node_max = (blockpos_max + 2) * MAP_BLOCKSIZE - v3s16(1, 1, 1);
// Create a block-specific seed
- blockseed = emerge->getBlockSeed(full_node_min); //////use getBlockSeed2()!
-
+ blockseed = getBlockSeed2(full_node_min, seed);
+
// Make some noise
calculateNoise();
// Generate base terrain
- generateBaseTerrain();
+ s16 stone_surface_max_y = generateBaseTerrain();
updateHeightmap(node_min, node_max);
- // Generate underground dirt, sand, gravel and lava blobs
- if (spflags & MGV5_BLOBS) {
- generateBlobs();
- }
-
// Calculate biomes
bmgr->calcBiomes(csize.X, csize.Z, noise_heat->result,
noise_humidity->result, heightmap, biomemap);
-
+
// Actually place the biome-specific nodes
generateBiomes();
+ // Generate caves
+ if ((flags & MG_CAVES) && (stone_surface_max_y >= node_min.Y))
+ generateCaves();
+
// Generate dungeons and desert temples
- if (flags & MG_DUNGEONS) {
+ if ((flags & MG_DUNGEONS) && (stone_surface_max_y >= node_min.Y)) {
DungeonGen dgen(this, NULL);
dgen.generate(blockseed, full_node_min, full_node_max);
}
// Generate the registered decorations
- emerge->decomgr->placeAllDecos(this, blockseed, node_min, node_max);
+ m_emerge->decomgr->placeAllDecos(this, blockseed, node_min, node_max);
+
+ // Generate underground dirt, sand, gravel and lava blobs
+ if (spflags & MGV5_BLOBS) {
+ generateBlobs();
+ }
// Generate the registered ores
- emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
+ m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
// Sprinkle some dust on top after everything else was generated
dustTopNodes();
// Add top and bottom side of water to transforming_liquid queue
updateLiquid(&data->transforming_liquid, full_node_min, full_node_max);
-
+
// Calculate lighting
- if (flags & MG_LIGHT)
- calcLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE,
- node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
-
+ if (flags & MG_LIGHT) {
+ calcLighting(node_min - v3s16(0, 1, 0), node_max + v3s16(0, 1, 0),
+ full_node_min, full_node_max);
+ }
+
this->generating = false;
}
-void MapgenV5::calculateNoise() {
+void MapgenV5::calculateNoise()
+{
//TimeTaker t("calculateNoise", NULL, PRECISION_MICRO);
int x = node_min.X;
- int y = node_min.Y;
+ int y = node_min.Y - 1;
int z = node_min.Z;
-
- noise_filler_depth->perlinMap2D(x, z);
+
noise_factor->perlinMap2D(x, z);
noise_height->perlinMap2D(x, z);
- noise_height->transformNoiseMap();
+ noise_ground->perlinMap3D(x, y, z);
- noise_cave1->perlinMap3D(x, y, z, true);
- noise_cave1->transformNoiseMap();
- noise_cave2->perlinMap3D(x, y, z, true);
- noise_cave2->transformNoiseMap();
- noise_ground->perlinMap3D(x, y, z, true);
- noise_ground->transformNoiseMap();
+ if (flags & MG_CAVES) {
+ noise_cave1->perlinMap3D(x, y, z);
+ noise_cave2->perlinMap3D(x, y, z);
+ }
if (spflags & MGV5_BLOBS) {
- noise_crumble->perlinMap3D(x, y, z, true);
- noise_wetness->perlinMap3D(x, y, z, false);
+ noise_crumble->perlinMap3D(x, y, z);
+ noise_wetness->perlinMap3D(x, y, z);
}
- noise_heat->perlinMap2D(x, z);
- noise_humidity->perlinMap2D(x, z);
+ if (node_max.Y >= water_level) {
+ noise_filler_depth->perlinMap2D(x, z);
+ noise_heat->perlinMap2D(x, z);
+ noise_humidity->perlinMap2D(x, z);
+ }
//printf("calculateNoise: %dus\n", t.stop());
}
+// Two original MT 0.3 functions:
+
//bool is_cave(u32 index) {
// double d1 = contour(noise_cave1->result[index]);
// double d2 = contour(noise_cave2->result[index]);
// return d1*d2 > CAVE_NOISE_THRESHOLD;
//}
-
//bool val_is_ground(v3s16 p, u32 index, u32 index2d) {
// double f = 0.55 + noise_factor->result[index2d];
// if(f < 0.01)
//}
-// Make base ground level
-void MapgenV5::generateBaseTerrain() {
+int MapgenV5::generateBaseTerrain()
+{
u32 index = 0;
u32 index2d = 0;
+ int stone_surface_max_y = -MAP_GENERATION_LIMIT;
for(s16 z=node_min.Z; z<=node_max.Z; z++) {
- for(s16 y=node_min.Y; y<=node_max.Y; y++) {
+ for(s16 y=node_min.Y - 1; y<=node_max.Y + 1; y++) {
u32 i = vm->m_area.index(node_min.X, y, z);
for(s16 x=node_min.X; x<=node_max.X; x++, i++, index++, index2d++) {
if(vm->m_data[i].getContent() != CONTENT_IGNORE)
else if(f >= 1.0)
f *= 1.6;
float h = water_level + noise_height->result[index2d];
- float d1 = contour(noise_cave1->result[index]);
- float d2 = contour(noise_cave2->result[index]);
+
if(noise_ground->result[index] * f < y - h) {
if(y <= water_level)
vm->m_data[i] = MapNode(c_water_source);
else
vm->m_data[i] = MapNode(CONTENT_AIR);
- } else if(d1*d2 > 0.2) {
- vm->m_data[i] = MapNode(CONTENT_AIR);
} else {
vm->m_data[i] = MapNode(c_stone);
+ if (y > stone_surface_max_y)
+ stone_surface_max_y = y;
}
}
index2d = index2d - ystride;
}
index2d = index2d + ystride;
}
-}
-
-// Add mud and sand and others underground (in place of stone)
-void MapgenV5::generateBlobs() {
- u32 index = 0;
-
- for(s16 z=node_min.Z; z<=node_max.Z; z++) {
- for(s16 y=node_min.Y; y<=node_max.Y; y++) {
- u32 i = vm->m_area.index(node_min.X, y, z);
- for(s16 x=node_min.X; x<=node_max.X; x++, i++, index++) {
- content_t c = vm->m_data[i].getContent();
- if(c != c_stone)
- continue;
-
- if(noise_crumble->result[index] > 1.3) {
- if(noise_wetness->result[index] > 0.0)
- vm->m_data[i] = MapNode(c_dirt);
- else
- vm->m_data[i] = MapNode(c_sand);
- } else if(noise_crumble->result[index] > 0.7) {
- if(noise_wetness->result[index] < -0.6)
- vm->m_data[i] = MapNode(c_gravel);
- } else if(noise_crumble->result[index] < -3.5 +
- MYMIN(0.1 *
- sqrt((float)MYMAX(0, -y)), 1.5)) {
- vm->m_data[i] = MapNode(c_lava_source);
- }
- }
- }
- }
+ return stone_surface_max_y;
}
-void MapgenV5::generateBiomes() {
+void MapgenV5::generateBiomes()
+{
if (node_max.Y < water_level)
return;
v3s16 em = vm->m_area.getExtent();
u32 index = 0;
-
+
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 = (Biome *)bmgr->get(biomemap[index]);
- s16 dfiller = biome->depth_filler + noise_filler_depth->result[index];
- s16 y0_top = biome->depth_top;
- s16 y0_filler = biome->depth_filler + biome->depth_top + dfiller;
-
+ Biome *biome = (Biome *)bmgr->get(biomemap[index]);
+ s16 dfiller = biome->depth_filler + noise_filler_depth->result[index];
+ s16 y0_top = biome->depth_top;
+ s16 y0_filler = biome->depth_top + dfiller;
+ s16 shore_max = water_level + biome->height_shore;
+ s16 depth_water_top = biome->depth_water_top;
+
s16 nplaced = 0;
- u32 i = vm->m_area.index(x, node_max.Y, z);
+ u32 i = vm->m_area.index(x, node_max.Y, z);
content_t c_above = vm->m_data[i + em.X].getContent();
bool have_air = c_above == CONTENT_AIR;
-
+
for (s16 y = node_max.Y; y >= node_min.Y; y--) {
content_t c = vm->m_data[i].getContent();
- bool is_replaceable_content =
- c == c_stone || c == c_dirt_with_grass || c == c_dirt ||
- c == c_sand || c == c_lava_source || c == c_gravel;
- if (is_replaceable_content && have_air) {
+ if (c == c_stone && have_air) {
content_t c_below = vm->m_data[i - em.X].getContent();
-
+
if (c_below != CONTENT_AIR) {
if (nplaced < y0_top) {
- // A hack to prevent dirt_with_grass from being
- // placed below water. TODO: fix later
- content_t c_place = ((y < water_level) &&
- (biome->c_top ==
- c_dirt_with_grass)) ?
- c_dirt : biome->c_top;
-
- vm->m_data[i] = MapNode(c_place);
+ if(y < water_level)
+ vm->m_data[i] = MapNode(biome->c_underwater);
+ else if(y <= shore_max)
+ vm->m_data[i] = MapNode(biome->c_shore_top);
+ else
+ vm->m_data[i] = MapNode(biome->c_top);
nplaced++;
} else if (nplaced < y0_filler && nplaced >= y0_top) {
- vm->m_data[i] = MapNode(biome->c_filler);
+ if(y < water_level)
+ vm->m_data[i] = MapNode(biome->c_underwater);
+ else if(y <= shore_max)
+ vm->m_data[i] = MapNode(biome->c_shore_filler);
+ else
+ vm->m_data[i] = MapNode(biome->c_filler);
nplaced++;
+ } else if (c == c_stone) {
+ have_air = false;
+ nplaced = 0;
+ vm->m_data[i] = MapNode(biome->c_stone);
} else {
have_air = false;
nplaced = 0;
}
+ } else if (c == c_stone) {
+ have_air = false;
+ nplaced = 0;
+ vm->m_data[i] = MapNode(biome->c_stone);
}
+ } else if (c == c_stone) {
+ have_air = false;
+ nplaced = 0;
+ vm->m_data[i] = MapNode(biome->c_stone);
} else if (c == c_water_source) {
have_air = true;
nplaced = 0;
- vm->m_data[i] = MapNode(biome->c_water);
+ if(y > water_level - depth_water_top)
+ vm->m_data[i] = MapNode(biome->c_water_top);
+ else
+ vm->m_data[i] = MapNode(biome->c_water);
} else if (c == CONTENT_AIR) {
have_air = true;
nplaced = 0;
}
-
+
vm->m_area.add_y(em, i, -1);
}
}
}
-void MapgenV5::dustTopNodes() {
- v3s16 em = vm->m_area.getExtent();
+
+void MapgenV5::generateCaves()
+{
u32 index = 0;
-
- if (water_level > node_max.Y)
+ u32 index2d = 0;
+
+ for(s16 z=node_min.Z; z<=node_max.Z; z++) {
+ for(s16 y=node_min.Y - 1; y<=node_max.Y + 1; y++) {
+ u32 i = vm->m_area.index(node_min.X, y, z);
+ for(s16 x=node_min.X; x<=node_max.X; x++, i++, index++, index2d++) {
+ Biome *biome = (Biome *)bmgr->get(biomemap[index2d]);
+ content_t c = vm->m_data[i].getContent();
+ if(c == CONTENT_AIR
+ || (y <= water_level
+ && c != biome->c_stone
+ && c != c_stone))
+ continue;
+
+ float d1 = contour(noise_cave1->result[index]);
+ float d2 = contour(noise_cave2->result[index]);
+ if(d1*d2 > 0.125)
+ vm->m_data[i] = MapNode(CONTENT_AIR);
+ }
+ index2d = index2d - ystride;
+ }
+ index2d = index2d + ystride;
+ }
+}
+
+
+void MapgenV5::generateBlobs()
+{
+ u32 index = 0;
+
+ for(s16 z=node_min.Z; z<=node_max.Z; z++) {
+ for(s16 y=node_min.Y - 1; y<=node_max.Y + 1; y++) {
+ u32 i = vm->m_area.index(node_min.X, y, z);
+ for(s16 x=node_min.X; x<=node_max.X; x++, i++, index++) {
+ content_t c = vm->m_data[i].getContent();
+ if(c != c_stone)
+ continue;
+
+ if(noise_crumble->result[index] > 1.3) {
+ if(noise_wetness->result[index] > 0.0)
+ vm->m_data[i] = MapNode(c_dirt);
+ else
+ vm->m_data[i] = MapNode(c_sand);
+ } else if(noise_crumble->result[index] > 0.7) {
+ if(noise_wetness->result[index] < -0.6)
+ vm->m_data[i] = MapNode(c_gravel);
+ } else if(noise_crumble->result[index] < -3.5 +
+ MYMIN(0.1 *
+ sqrt((float)MYMAX(0, -y)), 1.5)) {
+ vm->m_data[i] = MapNode(c_lava_source);
+ }
+ }
+ }
+ }
+}
+
+
+void MapgenV5::dustTopNodes()
+{
+ if (node_max.Y < water_level)
return;
+ v3s16 em = vm->m_area.getExtent();
+ u32 index = 0;
+
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 = (Biome *)bmgr->get(biomemap[index]);
-
+
if (biome->c_dust == CONTENT_IGNORE)
continue;
- s16 y = node_max.Y;
+ s16 y = node_max.Y + 1;
u32 vi = vm->m_area.index(x, y, z);
for (; y >= node_min.Y; y--) {
if (vm->m_data[vi].getContent() != CONTENT_AIR)
vm->m_area.add_y(em, vi, -1);
}
-
+
content_t c = vm->m_data[vi].getContent();
- if (c == biome->c_water && biome->c_dust_water != CONTENT_IGNORE) {
- if (y < node_min.Y)
+ if (!ndef->get(c).buildable_to && c != CONTENT_IGNORE
+ && c != biome->c_dust) {
+ if (y == node_max.Y + 1)
continue;
-
- vm->m_data[vi] = MapNode(biome->c_dust_water);
- } else if (!ndef->get(c).buildable_to && c != CONTENT_IGNORE) {
- if (y == node_max.Y)
- continue;
-
+
vm->m_area.add_y(em, vi, 1);
vm->m_data[vi] = MapNode(biome->c_dust);
}
projects / minetest.git / blobdiff