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-rw-r--r--src/mapgen/mapgen_v7.cpp235
1 files changed, 64 insertions, 171 deletions
diff --git a/src/mapgen/mapgen_v7.cpp b/src/mapgen/mapgen_v7.cpp
index 43b73ebae..23cbd4e0a 100644
--- a/src/mapgen/mapgen_v7.cpp
+++ b/src/mapgen/mapgen_v7.cpp
@@ -1,7 +1,7 @@
/*
Minetest
-Copyright (C) 2013-2018 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
-Copyright (C) 2014-2018 paramat
+Copyright (C) 2013-2019 kwolekr, Ryan Kwolek <kwolekr@minetest.net>
+Copyright (C) 2014-2019 paramat
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
@@ -55,12 +55,8 @@ FlagDesc flagdesc_mapgen_v7[] = {
MapgenV7::MapgenV7(MapgenV7Params *params, EmergeManager *emerge)
: MapgenBasic(MAPGEN_V7, params, emerge)
{
- spflags = params->spflags;
- mount_zero_level = params->mount_zero_level;
- float_mount_density = params->float_mount_density;
- float_mount_exponent = params->float_mount_exponent;
- floatland_level = params->floatland_level;
- shadow_limit = params->shadow_limit;
+ spflags = params->spflags;
+ mount_zero_level = params->mount_zero_level;
cave_width = params->cave_width;
large_cave_depth = params->large_cave_depth;
@@ -75,11 +71,6 @@ MapgenV7::MapgenV7(MapgenV7Params *params, EmergeManager *emerge)
dungeon_ymin = params->dungeon_ymin;
dungeon_ymax = params->dungeon_ymax;
- // This is to avoid a divide-by-zero.
- // Parameter will be saved to map_meta.txt in limited form.
- params->float_mount_height = std::fmax(params->float_mount_height, 1.0f);
- float_mount_height = params->float_mount_height;
-
// 2D noise
noise_terrain_base =
new Noise(&params->np_terrain_base, seed, csize.X, csize.Z);
@@ -92,34 +83,29 @@ MapgenV7::MapgenV7(MapgenV7Params *params, EmergeManager *emerge)
noise_filler_depth =
new Noise(&params->np_filler_depth, seed, csize.X, csize.Z);
- if (spflags & MGV7_MOUNTAINS)
+ if (spflags & MGV7_MOUNTAINS) {
+ // 2D noise
noise_mount_height =
- new Noise(&params->np_mount_height, seed, csize.X, csize.Z);
-
- if (spflags & MGV7_FLOATLANDS) {
- noise_floatland_base =
- new Noise(&params->np_floatland_base, seed, csize.X, csize.Z);
- noise_float_base_height =
- new Noise(&params->np_float_base_height, seed, csize.X, csize.Z);
+ new Noise(&params->np_mount_height, seed, csize.X, csize.Z);
+ // 3D noise, 1 up, 1 down overgeneration
+ noise_mountain =
+ new Noise(&params->np_mountain, seed, csize.X, csize.Y + 2, csize.Z);
}
if (spflags & MGV7_RIDGES) {
+ // 2D noise
noise_ridge_uwater =
- new Noise(&params->np_ridge_uwater, seed, csize.X, csize.Z);
- // 3D noise, 1 up, 1 down overgeneration
+ new Noise(&params->np_ridge_uwater, seed, csize.X, csize.Z);
+ // 3D noise, 1 up, 1 down overgeneration
noise_ridge =
- new Noise(&params->np_ridge, seed, csize.X, csize.Y + 2, csize.Z);
+ new Noise(&params->np_ridge, seed, csize.X, csize.Y + 2, csize.Z);
}
- // 3D noise, 1 up, 1 down overgeneration
- if ((spflags & MGV7_MOUNTAINS) || (spflags & MGV7_FLOATLANDS))
- noise_mountain =
- new Noise(&params->np_mountain, seed, csize.X, csize.Y + 2, csize.Z);
-
// 3D noise, 1 down overgeneration
MapgenBasic::np_cave1 = params->np_cave1;
MapgenBasic::np_cave2 = params->np_cave2;
MapgenBasic::np_cavern = params->np_cavern;
+ // 3D noise
MapgenBasic::np_dungeons = params->np_dungeons;
}
@@ -132,21 +118,15 @@ MapgenV7::~MapgenV7()
delete noise_height_select;
delete noise_filler_depth;
- if (spflags & MGV7_MOUNTAINS)
+ if (spflags & MGV7_MOUNTAINS) {
delete noise_mount_height;
-
- if (spflags & MGV7_FLOATLANDS) {
- delete noise_floatland_base;
- delete noise_float_base_height;
+ delete noise_mountain;
}
if (spflags & MGV7_RIDGES) {
delete noise_ridge_uwater;
delete noise_ridge;
}
-
- if ((spflags & MGV7_MOUNTAINS) || (spflags & MGV7_FLOATLANDS))
- delete noise_mountain;
}
@@ -158,8 +138,6 @@ MapgenV7Params::MapgenV7Params():
np_filler_depth (0.0, 1.2, v3f(150, 150, 150), 261, 3, 0.7, 2.0),
np_mount_height (256.0, 112.0, v3f(1000, 1000, 1000), 72449, 3, 0.6, 2.0),
np_ridge_uwater (0.0, 1.0, v3f(1000, 1000, 1000), 85039, 5, 0.6, 2.0),
- np_floatland_base (-0.6, 1.5, v3f(600, 600, 600), 114, 5, 0.6, 2.0),
- np_float_base_height (48.0, 24.0, v3f(300, 300, 300), 907, 4, 0.7, 2.0),
np_mountain (-0.6, 1.0, v3f(250, 350, 250), 5333, 5, 0.63, 2.0),
np_ridge (0.0, 1.0, v3f(100, 100, 100), 6467, 4, 0.75, 2.0),
np_cavern (0.0, 1.0, v3f(384, 128, 384), 723, 5, 0.63, 2.0),
@@ -181,72 +159,58 @@ void MapgenV7Params::readParams(const Settings *settings)
settings->getU16NoEx("mgv7_large_cave_num_min", large_cave_num_min);
settings->getU16NoEx("mgv7_large_cave_num_max", large_cave_num_max);
settings->getFloatNoEx("mgv7_large_cave_flooded", large_cave_flooded);
- settings->getFloatNoEx("mgv7_float_mount_density", float_mount_density);
- settings->getFloatNoEx("mgv7_float_mount_height", float_mount_height);
- settings->getFloatNoEx("mgv7_float_mount_exponent", float_mount_exponent);
- settings->getS16NoEx("mgv7_floatland_level", floatland_level);
- settings->getS16NoEx("mgv7_shadow_limit", shadow_limit);
settings->getS16NoEx("mgv7_cavern_limit", cavern_limit);
settings->getS16NoEx("mgv7_cavern_taper", cavern_taper);
settings->getFloatNoEx("mgv7_cavern_threshold", cavern_threshold);
settings->getS16NoEx("mgv7_dungeon_ymin", dungeon_ymin);
settings->getS16NoEx("mgv7_dungeon_ymax", dungeon_ymax);
- settings->getNoiseParams("mgv7_np_terrain_base", np_terrain_base);
- settings->getNoiseParams("mgv7_np_terrain_alt", np_terrain_alt);
- settings->getNoiseParams("mgv7_np_terrain_persist", np_terrain_persist);
- settings->getNoiseParams("mgv7_np_height_select", np_height_select);
- settings->getNoiseParams("mgv7_np_filler_depth", np_filler_depth);
- settings->getNoiseParams("mgv7_np_mount_height", np_mount_height);
- settings->getNoiseParams("mgv7_np_ridge_uwater", np_ridge_uwater);
- settings->getNoiseParams("mgv7_np_floatland_base", np_floatland_base);
- settings->getNoiseParams("mgv7_np_float_base_height", np_float_base_height);
- settings->getNoiseParams("mgv7_np_mountain", np_mountain);
- settings->getNoiseParams("mgv7_np_ridge", np_ridge);
- settings->getNoiseParams("mgv7_np_cavern", np_cavern);
- settings->getNoiseParams("mgv7_np_cave1", np_cave1);
- settings->getNoiseParams("mgv7_np_cave2", np_cave2);
- settings->getNoiseParams("mgv7_np_dungeons", np_dungeons);
+ settings->getNoiseParams("mgv7_np_terrain_base", np_terrain_base);
+ settings->getNoiseParams("mgv7_np_terrain_alt", np_terrain_alt);
+ settings->getNoiseParams("mgv7_np_terrain_persist", np_terrain_persist);
+ settings->getNoiseParams("mgv7_np_height_select", np_height_select);
+ settings->getNoiseParams("mgv7_np_filler_depth", np_filler_depth);
+ settings->getNoiseParams("mgv7_np_mount_height", np_mount_height);
+ settings->getNoiseParams("mgv7_np_ridge_uwater", np_ridge_uwater);
+ settings->getNoiseParams("mgv7_np_mountain", np_mountain);
+ settings->getNoiseParams("mgv7_np_ridge", np_ridge);
+ settings->getNoiseParams("mgv7_np_cavern", np_cavern);
+ settings->getNoiseParams("mgv7_np_cave1", np_cave1);
+ settings->getNoiseParams("mgv7_np_cave2", np_cave2);
+ settings->getNoiseParams("mgv7_np_dungeons", np_dungeons);
}
void MapgenV7Params::writeParams(Settings *settings) const
{
settings->setFlagStr("mgv7_spflags", spflags, flagdesc_mapgen_v7, U32_MAX);
- settings->setS16("mgv7_mount_zero_level", mount_zero_level);
- settings->setFloat("mgv7_cave_width", cave_width);
- settings->setS16("mgv7_large_cave_depth", large_cave_depth);
- settings->setU16("mgv7_small_cave_num_min", small_cave_num_min);
- settings->setU16("mgv7_small_cave_num_max", small_cave_num_max);
- settings->setU16("mgv7_large_cave_num_min", large_cave_num_min);
- settings->setU16("mgv7_large_cave_num_max", large_cave_num_max);
- settings->setFloat("mgv7_large_cave_flooded", large_cave_flooded);
- settings->setFloat("mgv7_float_mount_density", float_mount_density);
- settings->setFloat("mgv7_float_mount_height", float_mount_height);
- settings->setFloat("mgv7_float_mount_exponent", float_mount_exponent);
- settings->setS16("mgv7_floatland_level", floatland_level);
- settings->setS16("mgv7_shadow_limit", shadow_limit);
- settings->setS16("mgv7_cavern_limit", cavern_limit);
- settings->setS16("mgv7_cavern_taper", cavern_taper);
- settings->setFloat("mgv7_cavern_threshold", cavern_threshold);
- settings->setS16("mgv7_dungeon_ymin", dungeon_ymin);
- settings->setS16("mgv7_dungeon_ymax", dungeon_ymax);
-
- settings->setNoiseParams("mgv7_np_terrain_base", np_terrain_base);
- settings->setNoiseParams("mgv7_np_terrain_alt", np_terrain_alt);
- settings->setNoiseParams("mgv7_np_terrain_persist", np_terrain_persist);
- settings->setNoiseParams("mgv7_np_height_select", np_height_select);
- settings->setNoiseParams("mgv7_np_filler_depth", np_filler_depth);
- settings->setNoiseParams("mgv7_np_mount_height", np_mount_height);
- settings->setNoiseParams("mgv7_np_ridge_uwater", np_ridge_uwater);
- settings->setNoiseParams("mgv7_np_floatland_base", np_floatland_base);
- settings->setNoiseParams("mgv7_np_float_base_height", np_float_base_height);
- settings->setNoiseParams("mgv7_np_mountain", np_mountain);
- settings->setNoiseParams("mgv7_np_ridge", np_ridge);
- settings->setNoiseParams("mgv7_np_cavern", np_cavern);
- settings->setNoiseParams("mgv7_np_cave1", np_cave1);
- settings->setNoiseParams("mgv7_np_cave2", np_cave2);
- settings->setNoiseParams("mgv7_np_dungeons", np_dungeons);
+ settings->setS16("mgv7_mount_zero_level", mount_zero_level);
+ settings->setFloat("mgv7_cave_width", cave_width);
+ settings->setS16("mgv7_large_cave_depth", large_cave_depth);
+ settings->setU16("mgv7_small_cave_num_min", small_cave_num_min);
+ settings->setU16("mgv7_small_cave_num_max", small_cave_num_max);
+ settings->setU16("mgv7_large_cave_num_min", large_cave_num_min);
+ settings->setU16("mgv7_large_cave_num_max", large_cave_num_max);
+ settings->setFloat("mgv7_large_cave_flooded", large_cave_flooded);
+ settings->setS16("mgv7_cavern_limit", cavern_limit);
+ settings->setS16("mgv7_cavern_taper", cavern_taper);
+ settings->setFloat("mgv7_cavern_threshold", cavern_threshold);
+ settings->setS16("mgv7_dungeon_ymin", dungeon_ymin);
+ settings->setS16("mgv7_dungeon_ymax", dungeon_ymax);
+
+ settings->setNoiseParams("mgv7_np_terrain_base", np_terrain_base);
+ settings->setNoiseParams("mgv7_np_terrain_alt", np_terrain_alt);
+ settings->setNoiseParams("mgv7_np_terrain_persist", np_terrain_persist);
+ settings->setNoiseParams("mgv7_np_height_select", np_height_select);
+ settings->setNoiseParams("mgv7_np_filler_depth", np_filler_depth);
+ settings->setNoiseParams("mgv7_np_mount_height", np_mount_height);
+ settings->setNoiseParams("mgv7_np_ridge_uwater", np_ridge_uwater);
+ settings->setNoiseParams("mgv7_np_mountain", np_mountain);
+ settings->setNoiseParams("mgv7_np_ridge", np_ridge);
+ settings->setNoiseParams("mgv7_np_cavern", np_cavern);
+ settings->setNoiseParams("mgv7_np_cave1", np_cave1);
+ settings->setNoiseParams("mgv7_np_cave2", np_cave2);
+ settings->setNoiseParams("mgv7_np_dungeons", np_dungeons);
}
@@ -386,10 +350,9 @@ void MapgenV7::makeChunk(BlockMakeData *data)
// Update liquids
updateLiquid(&data->transforming_liquid, full_node_min, full_node_max);
- // Calculate lighting.
- // Limit floatland shadow.
- bool propagate_shadow = !((spflags & MGV7_FLOATLANDS) &&
- node_min.Y <= shadow_limit && node_max.Y >= shadow_limit);
+ // Calculate lighting
+ // TODO disable in and just below floatlands
+ bool propagate_shadow = true;
if (flags & MG_LIGHT)
calcLighting(node_min - v3s16(0, 1, 0), node_max + v3s16(0, 1, 0),
@@ -458,53 +421,6 @@ bool MapgenV7::getMountainTerrainFromMap(int idx_xyz, int idx_xz, s16 y)
}
-bool MapgenV7::getFloatlandMountainFromMap(int idx_xyz, int idx_xz, s16 y)
-{
- // Make rim 2 nodes thick to match floatland base terrain
- float density_gradient = (y >= floatland_level) ?
- -std::pow((float)(y - floatland_level) / float_mount_height,
- float_mount_exponent) :
- -std::pow((float)(floatland_level - 1 - y) / float_mount_height,
- float_mount_exponent);
-
- float floatn = noise_mountain->result[idx_xyz] + float_mount_density;
-
- return floatn + density_gradient >= 0.0f;
-}
-
-
-void MapgenV7::floatBaseExtentFromMap(s16 *float_base_min, s16 *float_base_max,
- int idx_xz)
-{
- // '+1' to avoid a layer of stone at y = MAX_MAP_GENERATION_LIMIT
- s16 base_min = MAX_MAP_GENERATION_LIMIT + 1;
- s16 base_max = MAX_MAP_GENERATION_LIMIT;
-
- float n_base = noise_floatland_base->result[idx_xz];
- if (n_base > 0.0f) {
- float n_base_height =
- std::fmax(noise_float_base_height->result[idx_xz], 1.0f);
- float amp = n_base * n_base_height;
- float ridge = n_base_height / 3.0f;
- base_min = floatland_level - amp / 1.5f;
-
- if (amp > ridge * 2.0f) {
- // Lake bed
- base_max = floatland_level - (amp - ridge * 2.0f) / 2.0f;
- } else {
- // Hills and ridges
- float diff = std::fabs(amp - ridge) / ridge;
- // Smooth ridges using the 'smoothstep function'
- float smooth_diff = diff * diff * (3.0f - 2.0f * diff);
- base_max = floatland_level + ridge - smooth_diff * ridge;
- }
- }
-
- *float_base_min = base_min;
- *float_base_max = base_max;
-}
-
-
int MapgenV7::generateTerrain()
{
MapNode n_air(CONTENT_AIR);
@@ -519,17 +435,9 @@ int MapgenV7::generateTerrain()
noise_terrain_alt->perlinMap2D(node_min.X, node_min.Z, persistmap);
noise_height_select->perlinMap2D(node_min.X, node_min.Z);
- if ((spflags & MGV7_MOUNTAINS) || (spflags & MGV7_FLOATLANDS)) {
- noise_mountain->perlinMap3D(node_min.X, node_min.Y - 1, node_min.Z);
- }
-
if (spflags & MGV7_MOUNTAINS) {
noise_mount_height->perlinMap2D(node_min.X, node_min.Z);
- }
-
- if (spflags & MGV7_FLOATLANDS) {
- noise_floatland_base->perlinMap2D(node_min.X, node_min.Z);
- noise_float_base_height->perlinMap2D(node_min.X, node_min.Z);
+ noise_mountain->perlinMap3D(node_min.X, node_min.Y - 1, node_min.Z);
}
//// Place nodes
@@ -543,13 +451,6 @@ int MapgenV7::generateTerrain()
if (surface_y > stone_surface_max_y)
stone_surface_max_y = surface_y;
- // Get extent of floatland base terrain
- // '+1' to avoid a layer of stone at y = MAX_MAP_GENERATION_LIMIT
- s16 float_base_min = MAX_MAP_GENERATION_LIMIT + 1;
- s16 float_base_max = MAX_MAP_GENERATION_LIMIT;
- if (spflags & MGV7_FLOATLANDS)
- floatBaseExtentFromMap(&float_base_min, &float_base_max, index2d);
-
u32 vi = vm->m_area.index(x, node_min.Y - 1, z);
u32 index3d = (z - node_min.Z) * zstride_1u1d + (x - node_min.X);
@@ -567,16 +468,8 @@ int MapgenV7::generateTerrain()
vm->m_data[vi] = n_stone; // Mountain terrain
if (y > stone_surface_max_y)
stone_surface_max_y = y;
- } else if ((spflags & MGV7_FLOATLANDS) &&
- ((y >= float_base_min && y <= float_base_max) ||
- getFloatlandMountainFromMap(index3d, index2d, y))) {
- vm->m_data[vi] = n_stone; // Floatland terrain
- stone_surface_max_y = node_max.Y;
} else if (y <= water_level) {
- vm->m_data[vi] = n_water; // Ground level water
- } else if ((spflags & MGV7_FLOATLANDS) &&
- (y >= float_base_max && y <= floatland_level)) {
- vm->m_data[vi] = n_water; // Floatland water
+ vm->m_data[vi] = n_water;
} else {
vm->m_data[vi] = n_air;
}
@@ -589,8 +482,8 @@ int MapgenV7::generateTerrain()
void MapgenV7::generateRidgeTerrain()
{
- if (node_max.Y < water_level - 16 ||
- ((spflags & MGV7_FLOATLANDS) && node_max.Y > shadow_limit))
+ // TODO disable river canyons in floatlands
+ if (node_max.Y < water_level - 16)
return;
noise_ridge->perlinMap3D(node_min.X, node_min.Y - 1, node_min.Z);