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Mgv7 floatlands: Add exponent parameter

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Allows more control over shape of floatland mountain terrain.
Terrain shape is unchanged.
This commit is contained in:
paramat 2017-12-24 22:38:35 +00:00 committed by paramat
parent f3b9d87076
commit 2aad3be2cb
2 changed files with 44 additions and 37 deletions
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9
src/mapgen/mapgen_v7.cpp
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@ -60,6 +60,7 @@ MapgenV7::MapgenV7(int mapgenid, MapgenV7Params *params, EmergeManager *emerge)
large_cave_depth = params->large_cave_depth;
lava_depth = params->lava_depth;
float_mount_density = params->float_mount_density;
float_mount_exponent = params->float_mount_exponent;
floatland_level = params->floatland_level;
shadow_limit = params->shadow_limit;
cavern_limit = params->cavern_limit;
@ -155,6 +156,7 @@ void MapgenV7Params::readParams(const Settings *settings)
settings->getS16NoEx("mgv7_lava_depth", lava_depth);
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);
@ -187,6 +189,7 @@ void MapgenV7Params::writeParams(Settings *settings) const
settings->setS16("mgv7_lava_depth", lava_depth);
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);
@ -416,8 +419,10 @@ 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) ?
-pow((float)(y - floatland_level) / float_mount_height, 0.75f) :
-pow((float)(floatland_level - 1 - y) / float_mount_height, 0.75f);
-pow((float)(y - floatland_level) / float_mount_height,
float_mount_exponent) :
-pow((float)(floatland_level - 1 - y) / float_mount_height,
float_mount_exponent);
float floatn = noise_mountain->result[idx_xyz] + float_mount_density;

2
src/mapgen/mapgen_v7.h
View File

@ -42,6 +42,7 @@ struct MapgenV7Params : public MapgenParams {
s16 lava_depth = -256;
float float_mount_density = 0.6f;
float float_mount_height = 128.0f;
float float_mount_exponent = 0.75f;
s16 floatland_level = 1280;
s16 shadow_limit = 1024;
s16 cavern_limit = -256;
@ -95,6 +96,7 @@ private:
s16 large_cave_depth;
float float_mount_density;
float float_mount_height;
float float_mount_exponent;
s16 floatland_level;
s16 shadow_limit;