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Add initial Lua biomedef support, fixed biome selection

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This commit is contained in:
kwolekr 2012-12-18 13:23:16 -05:00 committed by Perttu Ahola
parent 11afcbff69
commit 96898c1794
8 changed files with 419 additions and 197 deletions
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76
games/minimal/mods/default/init.lua
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@ -1586,6 +1586,82 @@ minetest.register_alias("mapgen_stone_with_coal", "default:stone_with_coal")
minetest.register_alias("mapgen_stone_with_iron", "default:stone_with_iron")
minetest.register_alias("mapgen_mese", "default:mese")
minetest.register_biome_groups({
0.35, 0.30, 0.20
})
--
-- Register the biomes for the map generator
--
minetest.register_biome({
group_id = 0,
name = "Ocean",
terrain_type = "liquid",
node_top = "default:gravel",
node_filler = "default:stone",
num_top_nodes = 4,
height_min = -3000,
height_max = 3000,
heat_min = -20.0,
heat_max = 100.0,
humidity_min = 0.0,
humidity_max = 100.0,
scale = 10.0,
offset = -10.0,
})
minetest.register_biome({
group_id = 1,
name = "Beach",
terrain_type = "normal",
node_top = "default:sand",
node_filler = "default:stone",
num_top_nodes = 5,
height_min = -3000,
height_max = 3000,
heat_min = 60.0,
heat_max = 100.0,
humidity_min = 0.0,
humidity_max = 100.0,
scale = 5.0,
offset = 5.0,
})
minetest.register_biome({
group_id = 2,
name = "Land",
terrain_type = "normal",
node_top = "default:dirt_with_grass",
node_filler = "default:stone",
num_top_nodes = 5,
height_min = -3000,
height_max = 3000,
heat_min = -50.0,
heat_max = 100.0,
humidity_min = 0.0,
humidity_max = 100.0,
scale = 12.0,
offset = 10.0,
})
minetest.register_biome({
group_id = 3,
name = "Hills",
terrain_type = "normal",
node_top = "default:dirt",
node_filler = "default:stone",
num_top_nodes = 3,
height_min = -3000,
height_max = 3000,
heat_min = -50.0,
heat_max = 100.0,
humidity_min = 0.0,
humidity_max = 100.0,
scale = 70.0,
offset = 30.0,
})
-- Support old code
function default.spawn_falling_node(p, nodename)
spawn_falling_node(p, nodename)

119
src/biome.cpp
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@ -64,11 +64,14 @@ int bg4_biomes[] = {BT_HILLS, BT_EXTREMEHILLS, BT_MOUNTAINS, BT_DESERT, BT_DESE
float bg5_temps[] = {5.0, 40.0};
int bg5_biomes[] = {BT_LAKE, BT_PLAINS, BT_DESERT};*/
NoiseParams np_default = {0.0, 20.0, v3f(250., 250., 250.), 82341, 5, 0.6};
BiomeDefManager::BiomeDefManager(IGameDef *gamedef) {
this->m_gamedef = gamedef;
this->ndef = gamedef->ndef();
bgroups.push_back(new std::vector<Biome *>); //the initial biome group
//addDefaultBiomes(); //can't do this in the ctor, too early
}
@ -79,19 +82,51 @@ BiomeDefManager::~BiomeDefManager() {
}
void BiomeDefManager::addBiome() {
Biome *BiomeDefManager::createBiome(BiomeTerrainType btt) {
switch (btt) {
case BIOME_TERRAIN_NORMAL:
return new Biome;
case BIOME_TERRAIN_LIQUID:
return new BiomeLiquid;
case BIOME_TERRAIN_NETHER:
return new BiomeHell;
case BIOME_TERRAIN_AETHER:
return new BiomeAether;
case BIOME_TERRAIN_FLAT:
return new BiomeSuperflat;
}
}
NoiseParams npmtdef = {0.0, 20.0, v3f(250., 250., 250.), 82341, 5, 0.6};
void BiomeDefManager::addBiomeGroup(float freq) {
int size = bgroup_freqs.size();
float newfreq = freq;
if (size)
newfreq += bgroup_freqs[size - 1];
bgroup_freqs.push_back(newfreq);
bgroups.push_back(new std::vector<Biome *>);
printf("added biome with freq %f\n", newfreq);
}
void BiomeDefManager::addBiome(int groupid, Biome *b) {
std::vector<Biome *> *bgroup;
if (groupid >= bgroups.size()) {
printf("blahblahblah");
return;
}
bgroup = bgroups[groupid];
bgroup->push_back(b);
}
void BiomeDefManager::addDefaultBiomes() {
std::vector<Biome *> *bgroup;
Biome *b;
//bgroup = new std::vector<Biome *>;
b = new Biome;
b->name = "Default";
b->n_top = MapNode(ndef->getId("mapgen_stone"));
@ -103,30 +138,25 @@ void BiomeDefManager::addDefaultBiomes() {
b->heat_max = FLT_MAX;
b->humidity_min = FLT_MIN;
b->humidity_max = FLT_MAX;
b->np = &npmtdef;
b->np = &np_default;
biome_default = b;
//bgroup->push_back(b);
//bgroups.push_back(bgroup);
}
Biome *BiomeDefManager::getBiome(float bgfreq, float heat, float humidity) {
std::vector<Biome *> bgroup;
std::vector<Biome *> *bgroup;
Biome *b;
int i;
int ngroups = bgroup_freqs.size();
if (!ngroups)
return biome_default;
for (i = 0; (i != ngroups - 1) && (bgfreq > bgroup_freqs[i]); i++);
bgroup = *(bgroups[i]);
for (i = 0; (i != ngroups) && (bgfreq > bgroup_freqs[i]); i++);
bgroup = bgroups[i];
int nbiomes = bgroup.size();
if (!nbiomes)
return biome_default;
for (i = 0; i != nbiomes - 1; i++) {
b = bgroup[i];
int nbiomes = bgroup->size();
for (i = 0; i != nbiomes; i++) {
b = bgroup->operator[](i);///////////////////////////
if (heat >= b->heat_min && heat <= b->heat_max &&
humidity >= b->humidity_min && humidity <= b->humidity_max)
return b;
@ -145,13 +175,11 @@ int Biome::getSurfaceHeight(float noise_terrain) {
void Biome::genColumn(Mapgen *mg, int x, int z, int y1, int y2) {
//printf("(%d, %d): %f\n", x, z, mg->map_terrain[z * mg->ystride + x]);
//int surfaceh = 4;
int surfaceh = np->offset + np->scale * mg->map_terrain[(z - mg->node_min.Z) * 80 /*THIS IS TEMPORARY mg->ystride*/ + (x - mg->node_min.X)];
//printf("gen column %f\n", );
int i = (z - mg->node_min.Z) * mg->csize.Z + (x - mg->node_min.X);
int surfaceh = np->offset + np->scale * mg->map_terrain[i];
int y = y1;
int i = mg->vmanip->m_area.index(x, y, z); //z * mg->zstride + x + (y - mg->vmanip->m_area.MinEdge.Y) * mg->ystride;
i = mg->vmanip->m_area.index(x, y, z);
for (; y <= surfaceh - ntopnodes && y <= y2; y++, i += mg->ystride)
mg->vmanip->m_data[i] = n_filler;
for (; y <= surfaceh && y <= y2; y++, i += mg->ystride)
@ -166,16 +194,18 @@ void Biome::genColumn(Mapgen *mg, int x, int z, int y1, int y2) {
void BiomeOcean::genColumn(Mapgen *mg, int x, int z, int y1, int y2) {
int y, i = 0;
void BiomeLiquid::genColumn(Mapgen *mg, int x, int z, int y1, int y2) {
int i = (z - mg->node_min.Z) * mg->csize.Z + (x - mg->node_min.X);
int surfaceh = np->offset + np->scale * mg->map_terrain[i];
int y = y1;
int surfaceh = np->offset + np->scale * mg->map_terrain[z * mg->ystride + x];
i = z * mg->zstride + x;
for (y = y1; y <= surfaceh - ntopnodes && y <= y2; y++, i += mg->ystride)
i = mg->vmanip->m_area.index(x, y, z);
for (; y <= surfaceh - ntopnodes && y <= y2; y++, i += mg->ystride)
mg->vmanip->m_data[i] = n_filler;
for (; y <= surfaceh && y <= y2; y++, i += mg->ystride)
mg->vmanip->m_data[i] = n_top;
for (; y <= mg->water_level && y <= y2; y++, i += mg->ystride)
mg->vmanip->m_data[i] = mg->n_water;
for (; y <= y2; y++, i += mg->ystride)
mg->vmanip->m_data[i] = mg->n_air;
}
@ -190,22 +220,23 @@ int BiomeHell::getSurfaceHeight(float noise_terrain) {
void BiomeHell::genColumn(Mapgen *mg, int x, int z, int y1, int y2) {
int y, i = 0;
int surfaceh = np->offset + np->scale * mg->map_terrain[z * mg->ystride + x];
i = z * mg->zstride + x;
for (y = y1; y <= surfaceh - ntopnodes && y <= y2; y++, i += mg->ystride)
mg->vmanip->m_data[i] = n_filler;
for (; y <= surfaceh && y <= y2; y++, i += mg->ystride)
mg->vmanip->m_data[i] = n_top;
for (; y <= y2; y++, i += mg->ystride)
mg->vmanip->m_data[i] = mg->n_air;
}
///////////////////////////// [ Aether biome ] ////////////////////////////////
int BiomeAether::getSurfaceHeight(float noise_terrain) {
return np->offset + np->scale * noise_terrain;
}
void BiomeAether::genColumn(Mapgen *mg, int x, int z, int y1, int y2) {
}
/////////////////////////// [ Superflat biome ] ///////////////////////////////
@ -215,15 +246,5 @@ int BiomeSuperflat::getSurfaceHeight(float noise_terrain) {
void BiomeSuperflat::genColumn(Mapgen *mg, int x, int z, int y1, int y2) {
int y, i = 0;
int surfaceh = ntopnodes;
i = z * mg->zstride + x;
for (y = y1; y <= surfaceh - ntopnodes && y <= y2; y++, i += mg->ystride)
mg->vmanip->m_data[i] = n_filler;
for (; y <= surfaceh && y <= y2; y++, i += mg->ystride)
mg->vmanip->m_data[i] = n_top;
for (; y <= y2; y++, i += mg->ystride)
mg->vmanip->m_data[i] = mg->n_air;
}

24
src/biome.h
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@ -20,12 +20,23 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#ifndef BIOME_HEADER
#define BIOME_HEADER
#include <string>
#include "nodedef.h"
#include "gamedef.h"
#include "mapnode.h"
#include "noise.h"
#include "mapgen.h"
enum BiomeTerrainType
{
BIOME_TERRAIN_NORMAL,
BIOME_TERRAIN_LIQUID,
BIOME_TERRAIN_NETHER,
BIOME_TERRAIN_AETHER,
BIOME_TERRAIN_FLAT
};
class Biome {
public:
MapNode n_top;
@ -38,14 +49,14 @@ public:
float heat_max;
float humidity_min;
float humidity_max;
const char *name;
std::string name;
NoiseParams *np;
virtual void genColumn(Mapgen *mg, int x, int z, int y1, int y2);
virtual int getSurfaceHeight(float noise_terrain);
};
class BiomeOcean : public Biome {
class BiomeLiquid : public Biome {
virtual void genColumn(Mapgen *mg, int x, int z, int y1, int y2);
};
@ -54,6 +65,11 @@ class BiomeHell : public Biome {
virtual int getSurfaceHeight(float noise_terrain);
};
class BiomeAether : public Biome {
virtual void genColumn(Mapgen *mg, int x, int z, int y1, int y2);
virtual int getSurfaceHeight(float noise_terrain);
};
class BiomeSuperflat : public Biome {
virtual void genColumn(Mapgen *mg, int x, int z, int y1, int y2);
virtual int getSurfaceHeight(float noise_terrain);
@ -70,9 +86,11 @@ public:
BiomeDefManager(IGameDef *gamedef);
~BiomeDefManager();
Biome *createBiome(BiomeTerrainType btt);
Biome *getBiome(float bgfreq, float heat, float humidity);
void addBiome();
void addBiomeGroup(float freq);
void addBiome(int groupid, Biome *b);
void addDefaultBiomes();
};

15
src/mapgen.cpp
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@ -35,9 +35,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "treegen.h"
NoiseParams nparams_mtdefault =
{0.0, 20.0, v3f(250., 250., 250.), 82341, 5, 0.6}; //terrain
{10.0, 12.0, v3f(350., 350., 350.), 82341, 5, 0.6}; //terrain
NoiseParams nparams_def_bgroup =
{0.5, 1/(2*1.6), v3f(250., 250., 250.), 5923, 2, 0.60}; //0 to 1
{0.5, 1/(2*1.6), v3f(350., 350., 350.), 5923, 2, 0.60}; //0 to 1
NoiseParams nparams_def_heat =
{25.0, 50.0, v3f(500., 500., 500.), 35293, 1, 0.00}; //-25 to 75
NoiseParams nparams_def_humidity =
@ -139,9 +139,13 @@ void Mapgen::makeChunk(BlockMakeData *data) {
map_heat = noise_heat->perlinMap2D(x, z);
map_humidity = noise_humidity->perlinMap2D(x, z);
noise_bgroup->transformNoiseMap();
noise_heat->transformNoiseMap();
noise_humidity->transformNoiseMap();
int i = 0;
for (x = node_min.X; x <= node_max.X; x++) {
for (z = node_min.Z; z <= node_max.Z; z++) {
for (z = node_min.Z; z <= node_max.Z; z++) {
for (x = node_min.X; x <= node_max.X; x++) {
Biome *biome = biomedef->getBiome(map_bgroup[i], map_heat[i], map_humidity[i]);
biome->genColumn(this, x, z, y1, y2);
i++;
@ -153,7 +157,7 @@ void Mapgen::makeChunk(BlockMakeData *data) {
//genDungeon();
//add blobs of dirt and gravel underground
//decorateChunk();
//updateLiquid(full_node_min, full_node_max);
updateLiquid(full_node_min, full_node_max);
updateLighting(node_min, node_max);
this->generating = false;
@ -164,7 +168,6 @@ void Mapgen::makeChunk(BlockMakeData *data) {
void Mapgen::updateLiquid(v3s16 node_min, v3s16 node_max) {
bool isliquid, wasliquid;
u32 i;
content_t c;
for (s16 z = node_min.Z; z <= node_max.Z; z++) {
for (s16 x = node_min.X; x <= node_max.X; x++) {

15
src/noise.cpp
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@ -287,7 +287,7 @@ Noise::Noise(NoiseParams *np, int seed, int sx, int sy) {
this->seed = seed;
this->sx = sx;
this->sy = sy;
this->sz = 0;
this->sz = 1;
this->noisebuf = new float[nlx * nly];
this->buf = new float[sx * sy];
this->result = new float[sx * sy];
@ -538,3 +538,16 @@ float *Noise::perlinMap3D(float x, float y, float z) {
return result;
}
void Noise::transformNoiseMap() {
int i = 0;
for (int z = 0; z != sz; z++) {
for (int y = 0; y != sy; y++) {
for (int x = 0; x != sx; x++) {
result[i] = result[i] * np->scale + np->offset;
i++;
}
}
}
}

1
src/noise.h
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@ -95,6 +95,7 @@ public:
int seed);
float *perlinMap2D(float x, float y);
float *perlinMap3D(float x, float y, float z);
void transformNoiseMap();
};
// Return value: -1 ... 1

86
src/scriptapi.cpp
View File

@ -37,6 +37,7 @@ extern "C" {
#include "content_sao.h" // For LuaEntitySAO and PlayerSAO
#include "itemdef.h"
#include "nodedef.h"
#include "biome.h"
#include "craftdef.h"
#include "main.h" // For g_settings
#include "settings.h" // For accessing g_settings
@ -436,6 +437,16 @@ struct EnumString es_TileAnimationType[] =
{0, NULL},
};
struct EnumString es_BiomeTerrainType[] =
{
{BIOME_TERRAIN_NORMAL, "normal"},
{BIOME_TERRAIN_LIQUID, "liquid"},
{BIOME_TERRAIN_NETHER, "nether"},
{BIOME_TERRAIN_AETHER, "aether"},
{BIOME_TERRAIN_FLAT, "flat"},
{0, NULL},
};
/*
C struct <-> Lua table converter functions
*/
@ -4147,6 +4158,8 @@ const luaL_reg EnvRef::methods[] = {
method(EnvRef, find_node_near),
method(EnvRef, find_nodes_in_area),
method(EnvRef, get_perlin),
//method{EnvRef, get_perlin_map_2d},
//method{EnvRef, get_perlin_map_3d},
method(EnvRef, clear_objects),
method(EnvRef, spawn_tree),
{0,0}
@ -4442,6 +4455,77 @@ static int l_get_server_status(lua_State *L)
return 1;
}
// register_biome_groups({frequencies})
static int l_register_biome_groups(lua_State *L)
{
luaL_checktype(L, 1, LUA_TTABLE);
int index = 1;
if (!lua_istable(L, index)) {
return 0;
}
BiomeDefManager *bmgr = get_server(L)->getEmergeManager()->biomedef;
lua_pushnil(L);
for (int i = 1; lua_next(L, index) != 0; i++) {
bmgr->addBiomeGroup(lua_tonumber(L, -1));
lua_pop(L, 1);
}
lua_pop(L, 1);
return 0;
}
// register_biome({lots of stuff})
static int l_register_biome(lua_State *L)
{
luaL_checktype(L, 1, LUA_TTABLE);
int index = 1, groupid;
std::string nodename;
IWritableNodeDefManager *ndef = get_server(L)->getWritableNodeDefManager();
BiomeDefManager *bmgr = get_server(L)->getEmergeManager()->biomedef;
groupid = getintfield_default(L, index, "group_id", 0);
enum BiomeTerrainType terrain = (BiomeTerrainType)getenumfield(L, index,
"terrain_type", es_BiomeTerrainType, BIOME_TERRAIN_NORMAL);
Biome *b = bmgr->createBiome(terrain);
b->name = getstringfield_default(L, index, "name", "");
if (getstringfield(L, index, "node_top", nodename))
b->n_top = MapNode(ndef->getId(nodename));
else
b->n_top = MapNode(CONTENT_IGNORE);
if (getstringfield(L, index, "node_filler", nodename))
b->n_filler = MapNode(ndef->getId(nodename));
else
b->n_filler = b->n_top;
b->ntopnodes = getintfield_default(L, index, "num_top_nodes", 0);
b->height_min = getintfield_default(L, index, "height_min", 0);
b->height_max = getintfield_default(L, index, "height_max", 0);
b->heat_min = getfloatfield_default(L, index, "heat_min", 0.);
b->heat_max = getfloatfield_default(L, index, "heat_max", 0.);
b->humidity_min = getfloatfield_default(L, index, "humidity_min", 0.);
b->humidity_max = getfloatfield_default(L, index, "humidity_max", 0.);
//////hrm, what to do about the noiseparams...
b->np = new NoiseParams; /////just a hacky solution
getfloatfield(L, index, "scale", b->np->scale);
getfloatfield(L, index, "offset", b->np->offset);
//TODO: add configurable spread factor and octaves!?
//I'd have to create a Noise for every Biome...
bmgr->addBiome(groupid, b);
printf(" - added biome '%s' - %d %d\n", b->name.c_str(), b->n_top.param0, b->n_filler.param0);
return 0;
}
// register_item_raw({lots of stuff})
static int l_register_item_raw(lua_State *L)
{
@ -5254,6 +5338,8 @@ static const struct luaL_Reg minetest_f [] = {
{"register_item_raw", l_register_item_raw},
{"register_alias_raw", l_register_alias_raw},
{"register_craft", l_register_craft},
{"register_biome", l_register_biome},
{"register_biome_groups", l_register_biome_groups},
{"setting_set", l_setting_set},
{"setting_get", l_setting_get},
{"setting_getbool", l_setting_getbool},

4
src/server.h
View File

@ -549,6 +549,10 @@ public:
// Envlock should be locked when using the rollback manager
IRollbackManager *getRollbackManager(){ return m_rollback; }
//TODO: determine what should be locked when accessing the emerge manager
EmergeManager *getEmergeManager(){ return m_emerge; }
// actions: time-reversed list
// Return value: success/failure
bool rollbackRevertActions(const std::list<RollbackAction> &actions,