Mirrorlandia_minetest/minetest
1
0
Fork 1
mirror of https://github.com/minetest/minetest.git synced 2024-11-23 16:13:46 +01:00
Code Issues Packages Projects Releases Wiki Activity

Biomes/decorations/ores: Make relative to 'water_level' setting

Browse Source 
Add 'biome_zero_level' argument to 'generateBiomes()', 'deco_zero_level'
argument to 'placeAllDecos()' and 'ore_zero_level' to 'placeAllOres()'
to allow mapgens to vertically shift the registered biomes, decorations
and ores per-mapchunk.
Will also allow many realm possibilities in future mapgens.
This commit is contained in:
paramat 2017-06-14 02:00:51 +01:00 committed by paramat
parent ef285b2815
commit 8299e4b67e
14 changed files with 90 additions and 43 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
doc/lua_api.txt
View File

@ -4420,6 +4420,9 @@ Definition tables
-- ^ In this example, there is a 3x3x3 cluster where 8 out of the 27 nodes are coal ore
y_min = -31000,
y_max = 64,
-- ^ Lower and upper limits for ore.
-- ^ Limits are relative to y = water_level - 1 for core mapgen, or
-- ^ relative to y = 0 for minetest.generate_ores().
flags = "",
-- ^ Attributes for this ore generation
noise_threshold = 0.5,
@ -4429,7 +4432,7 @@ Definition tables
-- ^ Needed for sheet ore_type. Omit from scatter ore_type for a uniform ore distribution
random_factor = 1.0,
-- ^ Multiplier of the randomness contribution to the noise value at any
-- given point to decide if ore should be placed. Set to 0 for solid veins.
-- ^ given point to decide if ore should be placed. Set to 0 for solid veins.
-- ^ This parameter is only valid for ore_type == "vein".
biomes = {"desert", "rainforest"}
-- ^ List of biomes in which this decoration occurs. Occurs in all biomes if this is omitted,
@ -4467,6 +4470,7 @@ The Biome API is still in an experimental phase and subject to change.
y_min = 1,
y_max = 31000,
-- ^ Lower and upper limits for biome.
-- ^ Limits are relative to y = water_level - 1.
-- ^ Because biome is not recalculated for every node in a node column
-- ^ some biome materials can exceed their limits, especially stone.
-- ^ For each node column in a mapchunk, biome is only recalculated at column
@ -4509,9 +4513,11 @@ The Biome API is still in an experimental phase and subject to change.
-- ^ Can be a list of (or a single) biome names, IDs, or definitions.
y_min = -31000
y_max = 31000
-- ^ Minimum and maximum `y` positions these decorations can be generated at.
-- ^ This parameter refers to the `y` position of the decoration base, so
-- the actual maximum height would be `height_max + size.Y`.
-- ^ Lower and upper limits for decoration.
-- ^ Limits are relative to y = water_level - 1 for core mapgen, or
-- ^ relative to y = 0 for minetest.generate_decorations().
-- ^ This parameter refers to the `y` position of the decoration base, so
-- the actual maximum height would be `height_max + size.Y`.
spawn_by = "default:water",
-- ^ Node (or list of nodes) that the decoration only spawns next to.
-- ^ Checks two horizontal planes of neighbouring nodes (including diagonal neighbours),

7
src/mapgen.cpp
View File

@ -621,7 +621,7 @@ MapgenBasic::~MapgenBasic()
}
MgStoneType MapgenBasic::generateBiomes()
MgStoneType MapgenBasic::generateBiomes(s16 biome_zero_level)
{
// can't generate biomes without a biome generator!
assert(biomegen);
@ -673,7 +673,10 @@ MgStoneType MapgenBasic::generateBiomes()
(air_above || !biome);
if (is_stone_surface || is_water_surface) {
biome = biomegen->getBiomeAtIndex(index, y);
// Limit to +-MAX MAP GENERATION LIMIT to work with biome y_min / y_max.
s32 relative_y = rangelim(y - biome_zero_level,
-MAX_MAP_GENERATION_LIMIT, MAX_MAP_GENERATION_LIMIT);
biome = biomegen->getBiomeAtIndex(index, relative_y);
if (biomemap[index] == BIOME_NONE && is_stone_surface)
biomemap[index] = biome->index;

2
src/mapgen.h
View File

@ -251,7 +251,7 @@ public:
virtual void generateCaves(s16 max_stone_y, s16 large_cave_depth);
virtual bool generateCaverns(s16 max_stone_y);
virtual void generateDungeons(s16 max_stone_y, MgStoneType stone_type);
virtual MgStoneType generateBiomes();
virtual MgStoneType generateBiomes(s16 biome_zero_level = 0);
virtual void dustTopNodes();
protected:

10
src/mapgen_carpathian.cpp
View File

@ -242,7 +242,7 @@ void MapgenCarpathian::makeChunk(BlockMakeData *data)
// Init biome generator, place biome-specific nodes, and build biomemap
biomegen->calcBiomeNoise(node_min);
MgStoneType stone_type = generateBiomes();
MgStoneType stone_type = generateBiomes(water_level - 1);
// Generate caverns, tunnels and classic caves
if (flags & MG_CAVES) {
@ -266,10 +266,12 @@ void MapgenCarpathian::makeChunk(BlockMakeData *data)
// 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();
@ -448,4 +450,4 @@ int MapgenCarpathian::generateTerrain()
}
return stone_surface_max_y;
}
}

8
src/mapgen_flat.cpp
View File

@ -189,7 +189,7 @@ void MapgenFlat::makeChunk(BlockMakeData *data)
// Init biome generator, place biome-specific nodes, and build biomemap
biomegen->calcBiomeNoise(node_min);
MgStoneType stone_type = generateBiomes();
MgStoneType stone_type = generateBiomes(water_level - 1);
if (flags & MG_CAVES)
generateCaves(stone_surface_max_y, large_cave_depth);
@ -199,10 +199,12 @@ void MapgenFlat::makeChunk(BlockMakeData *data)
// 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();

8
src/mapgen_fractal.cpp
View File

@ -199,7 +199,7 @@ void MapgenFractal::makeChunk(BlockMakeData *data)
// Init biome generator, place biome-specific nodes, and build biomemap
biomegen->calcBiomeNoise(node_min);
MgStoneType stone_type = generateBiomes();
MgStoneType stone_type = generateBiomes(water_level - 1);
if (flags & MG_CAVES)
generateCaves(stone_surface_max_y, large_cave_depth);
@ -209,10 +209,12 @@ void MapgenFractal::makeChunk(BlockMakeData *data)
// 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();

8
src/mapgen_v5.cpp
View File

@ -200,7 +200,7 @@ void MapgenV5::makeChunk(BlockMakeData *data)
// Init biome generator, place biome-specific nodes, and build biomemap
biomegen->calcBiomeNoise(node_min);
MgStoneType stone_type = generateBiomes();
MgStoneType stone_type = generateBiomes(water_level - 1);
// Generate caverns, tunnels and classic caves
if (flags & MG_CAVES) {
@ -224,10 +224,12 @@ void MapgenV5::makeChunk(BlockMakeData *data)
// 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();

6
src/mapgen_v6.cpp
View File

@ -619,10 +619,12 @@ void MapgenV6::makeChunk(BlockMakeData *data)
// 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);
// Calculate lighting
if (flags & MG_LIGHT)

8
src/mapgen_v7.cpp
View File

@ -298,7 +298,7 @@ void MapgenV7::makeChunk(BlockMakeData *data)
// Init biome generator, place biome-specific nodes, and build biomemap
biomegen->calcBiomeNoise(node_min);
MgStoneType stone_type = generateBiomes();
MgStoneType stone_type = generateBiomes(water_level - 1);
// Generate caverns, tunnels and classic caves
if (flags & MG_CAVES) {
@ -322,10 +322,12 @@ void MapgenV7::makeChunk(BlockMakeData *data)
// 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();

8
src/mapgen_valleys.cpp
View File

@ -236,7 +236,7 @@ void MapgenValleys::makeChunk(BlockMakeData *data)
updateHeightmap(node_min, node_max);
// Place biome-specific nodes and build biomemap
MgStoneType stone_type = generateBiomes();
MgStoneType stone_type = generateBiomes(water_level - 1);
// Cave creation.
if (flags & MG_CAVES)
@ -248,10 +248,12 @@ void MapgenValleys::makeChunk(BlockMakeData *data)
// 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();

19
src/mg_decoration.cpp
View File

@ -48,7 +48,7 @@ DecorationManager::DecorationManager(IGameDef *gamedef) :
size_t DecorationManager::placeAllDecos(Mapgen *mg, u32 blockseed,
v3s16 nmin, v3s16 nmax)
v3s16 nmin, v3s16 nmax, s16 deco_zero_level)
{
size_t nplaced = 0;
@ -57,7 +57,7 @@ size_t DecorationManager::placeAllDecos(Mapgen *mg, u32 blockseed,
if (!deco)
continue;
nplaced += deco->placeDeco(mg, blockseed, nmin, nmax);
nplaced += deco->placeDeco(mg, blockseed, nmin, nmax, deco_zero_level);
blockseed++;
}
@ -123,8 +123,18 @@ bool Decoration::canPlaceDecoration(MMVManip *vm, v3s16 p)
}
size_t Decoration::placeDeco(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
size_t Decoration::placeDeco(Mapgen *mg, u32 blockseed,
v3s16 nmin, v3s16 nmax, s16 deco_zero_level)
{
// Decoration y_min / y_max is displaced by deco_zero_level or remains
// unchanged. Any decoration with a limit at +-MAX_MAP_GENERATION_LIMIT is
// considered to have that limit at +-infinity, so we do not alter that limit.
s32 y_min_disp = (y_min <= -MAX_MAP_GENERATION_LIMIT) ?
-MAX_MAP_GENERATION_LIMIT : y_min + deco_zero_level;
s32 y_max_disp = (y_max >= MAX_MAP_GENERATION_LIMIT) ?
MAX_MAP_GENERATION_LIMIT : y_max + deco_zero_level;
PcgRandom ps(blockseed + 53);
int carea_size = nmax.X - nmin.X + 1;
@ -179,8 +189,7 @@ size_t Decoration::placeDeco(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
else
y = mg->findGroundLevel(v2s16(x, z), nmin.Y, nmax.Y);
if (y < nmin.Y || y > nmax.Y ||
y < y_min || y > y_max)
if (y < y_min_disp || y > y_max_disp || y < nmin.Y || y > nmax.Y)
continue;
if (y + getHeight() > mg->vm->m_area.MaxEdge.Y) {

6
src/mg_decoration.h
View File

@ -70,7 +70,8 @@ public:
virtual void resolveNodeNames();
bool canPlaceDecoration(MMVManip *vm, v3s16 p);
size_t placeDeco(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
size_t placeDeco(Mapgen *mg, u32 blockseed,
v3s16 nmin, v3s16 nmax, s16 deco_zero_level);
//size_t placeCutoffs(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
virtual size_t generate(MMVManip *vm, PcgRandom *pr, v3s16 p) = 0;
@ -145,7 +146,8 @@ public:
}
}
size_t placeAllDecos(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
size_t placeAllDecos(Mapgen *mg, u32 blockseed,
v3s16 nmin, v3s16 nmax, s16 deco_zero_level = 0);
};
#endif

23
src/mg_ore.cpp
View File

@ -43,7 +43,8 @@ OreManager::OreManager(IGameDef *gamedef) :
}
size_t OreManager::placeAllOres(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
size_t OreManager::placeAllOres(Mapgen *mg, u32 blockseed,
v3s16 nmin, v3s16 nmax, s16 ore_zero_level)
{
size_t nplaced = 0;
@ -52,7 +53,7 @@ size_t OreManager::placeAllOres(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nma
if (!ore)
continue;
nplaced += ore->placeOre(mg, blockseed, nmin, nmax);
nplaced += ore->placeOre(mg, blockseed, nmin, nmax, ore_zero_level);
blockseed++;
}
@ -85,13 +86,23 @@ void Ore::resolveNodeNames()
}
size_t Ore::placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax)
size_t Ore::placeOre(Mapgen *mg, u32 blockseed,
v3s16 nmin, v3s16 nmax, s16 ore_zero_level)
{
if (!(nmin.Y <= y_max && nmax.Y >= y_min))
// Ore y_min / y_max is displaced by ore_zero_level or remains unchanged.
// Any ore with a limit at +-MAX_MAP_GENERATION_LIMIT is considered to have
// that limit at +-infinity, so we do not alter that limit.
s32 y_min_disp = (y_min <= -MAX_MAP_GENERATION_LIMIT) ?
-MAX_MAP_GENERATION_LIMIT : y_min + ore_zero_level;
s32 y_max_disp = (y_max >= MAX_MAP_GENERATION_LIMIT) ?
MAX_MAP_GENERATION_LIMIT : y_max + ore_zero_level;
if (nmin.Y > y_max_disp || nmax.Y < y_min_disp)
return 0;
int actual_ymin = MYMAX(nmin.Y, y_min);
int actual_ymax = MYMIN(nmax.Y, y_max);
int actual_ymin = MYMAX(nmin.Y, y_min_disp);
int actual_ymax = MYMIN(nmax.Y, y_max_disp);
if (clust_size >= actual_ymax - actual_ymin + 1)
return 0;

6
src/mg_ore.h
View File

@ -70,7 +70,8 @@ public:
virtual void resolveNodeNames();
size_t placeOre(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
size_t placeOre(Mapgen *mg, u32 blockseed,
v3s16 nmin, v3s16 nmax, s16 ore_zero_level);
virtual void generate(MMVManip *vm, int mapseed, u32 blockseed,
v3s16 nmin, v3s16 nmax, u8 *biomemap) = 0;
};
@ -163,7 +164,8 @@ public:
void clear();
size_t placeAllOres(Mapgen *mg, u32 blockseed, v3s16 nmin, v3s16 nmax);
size_t placeAllOres(Mapgen *mg, u32 blockseed,
v3s16 nmin, v3s16 nmax, s16 ore_zero_level = 0);
};
#endif