/*
Minetest
-Copyright (C) 2010-2015 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
-Copyright (C) 2010-2015 paramat, Matt Gregory
+Copyright (C) 2014-2017 paramat
+Copyright (C) 2014-2016 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
MapgenV5::MapgenV5(int mapgenid, MapgenV5Params *params, EmergeManager *emerge)
: MapgenBasic(mapgenid, params, emerge)
{
- this->spflags = params->spflags;
- this->cave_width = params->cave_width;
- this->cavern_limit = params->cavern_limit;
- this->cavern_taper = params->cavern_taper;
- this->cavern_threshold = params->cavern_threshold;
+ spflags = params->spflags;
+ cave_width = params->cave_width;
+ large_cave_depth = params->large_cave_depth;
+ lava_depth = params->lava_depth;
+ cavern_limit = params->cavern_limit;
+ cavern_taper = params->cavern_taper;
+ cavern_threshold = params->cavern_threshold;
// Terrain noise
noise_filler_depth = new Noise(¶ms->np_filler_depth, seed, csize.X, csize.Z);
MapgenV5Params::MapgenV5Params()
{
- spflags = MGV5_CAVERNS;
- cave_width = 0.125;
- cavern_limit = -256;
- cavern_taper = 256;
- cavern_threshold = 0.7;
-
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);
{
settings->getFlagStrNoEx("mgv5_spflags", spflags, flagdesc_mapgen_v5);
settings->getFloatNoEx("mgv5_cave_width", cave_width);
+ settings->getS16NoEx("mgv5_large_cave_depth", large_cave_depth);
+ settings->getS16NoEx("mgv5_lava_depth", lava_depth);
settings->getS16NoEx("mgv5_cavern_limit", cavern_limit);
settings->getS16NoEx("mgv5_cavern_taper", cavern_taper);
settings->getFloatNoEx("mgv5_cavern_threshold", cavern_threshold);
{
settings->setFlagStr("mgv5_spflags", spflags, flagdesc_mapgen_v5, U32_MAX);
settings->setFloat("mgv5_cave_width", cave_width);
+ settings->setS16("mgv5_large_cave_depth", large_cave_depth);
+ settings->setS16("mgv5_lava_depth", lava_depth);
settings->setS16("mgv5_cavern_limit", cavern_limit);
settings->setS16("mgv5_cavern_taper", cavern_taper);
settings->setFloat("mgv5_cavern_threshold", cavern_threshold);
int MapgenV5::getSpawnLevelAtPoint(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 *= 1.6;
float h = NoisePerlin2D(&noise_height->np, p.X, p.Y, seed);
- for (s16 y = 128; y >= -128; y--) {
+ // noise_height 'offset' is the average level of terrain. At least 50% of
+ // terrain will be below this.
+ // Raising the maximum spawn level above 'water_level + 16' is necessary
+ // for when noise_height 'offset' is set much higher than water_level.
+ s16 max_spawn_y = MYMAX(noise_height->np.offset, water_level + 16);
+
+ // Starting spawn search at max_spawn_y + 128 ensures 128 nodes of open
+ // space above spawn position. Avoids spawning in possibly sealed voids.
+ for (s16 y = max_spawn_y + 128; y >= water_level; y--) {
float n_ground = NoisePerlin3D(&noise_ground->np, p.X, y, p.Y, seed);
if (n_ground * f > y - h) { // If solid
- // If either top 2 nodes of search are solid this is inside a
- // mountain or floatland with possibly no space for the player to spawn.
- if (y >= 127) {
+ if (y < water_level || y > max_spawn_y)
return MAX_MAP_GENERATION_LIMIT; // Unsuitable spawn point
- } else { // Ground below at least 2 nodes of empty space
- if (y <= water_level || y > water_level + 16)
- return MAX_MAP_GENERATION_LIMIT; // Unsuitable spawn point
- else
- return y;
- }
+ else
+ // y + 2 because y is surface and due to biome 'dust' nodes.
+ return y + 2;
}
}
-
- //printf("getGroundLevelAtPoint: %dus\n", t.stop());
- return MAX_MAP_GENERATION_LIMIT; // Unsuitable spawn position, no ground found
+ // Unsuitable spawn position, no ground found
+ return MAX_MAP_GENERATION_LIMIT;
}
// Init biome generator, place biome-specific nodes, and build biomemap
biomegen->calcBiomeNoise(node_min);
- MgStoneType stone_type = generateBiomes();
+
+ MgStoneType mgstone_type;
+ content_t biome_stone;
+ generateBiomes(&mgstone_type, &biome_stone, water_level - 1);
// Generate caverns, tunnels and classic caves
if (flags & MG_CAVES) {
// large caverns and floating blobs of overgenerated liquid.
generateCaves(stone_surface_max_y, -MAX_MAP_GENERATION_LIMIT);
else
- generateCaves(stone_surface_max_y, MGV5_LARGE_CAVE_DEPTH);
+ generateCaves(stone_surface_max_y, large_cave_depth);
}
// Generate dungeons and desert temples
if (flags & MG_DUNGEONS)
- generateDungeons(stone_surface_max_y, stone_type);
+ generateDungeons(stone_surface_max_y, mgstone_type, biome_stone);
// Generate the registered decorations
if (flags & MG_DECORATIONS)
- m_emerge->decomgr->placeAllDecos(this, blockseed, node_min, node_max);
+ m_emerge->decomgr->placeAllDecos(this, blockseed,
+ node_min, node_max, water_level - 1);
// Generate the registered ores
- m_emerge->oremgr->placeAllOres(this, blockseed, node_min, node_max);
+ m_emerge->oremgr->placeAllOres(this, blockseed,
+ node_min, node_max, water_level - 1);
// Sprinkle some dust on top after everything else was generated
dustTopNodes();
projects / oweals / minetest.git / blobdiff