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Weather: Clean up getHeat/getHumidity somewhat

master
kwolekr 2013-09-16 22:52:24 -04:00
parent c9eb17aba3
commit 9bccd75e34
13 changed files with 143 additions and 77 deletions
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52
src/biome.cpp
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@ -21,6 +21,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "nodedef.h"
#include "map.h" //for ManualMapVoxelManipulator
#include "log.h"
#include "util/numeric.h"
#include "main.h"
@ -203,3 +204,54 @@ u8 BiomeDefManager::getBiomeIdByName(const char *name) {
return 0;
}
///////////////////////////// Weather
s16 BiomeDefManager::calcBlockHeat(v3s16 p, u64 seed, float timeofday, float totaltime) {
//variant 1: full random
//f32 heat = NoisePerlin3D(np_heat, p.X, env->getGameTime()/100, p.Z, seed);
//variant 2: season change based on default heat map
const f32 offset = 20; // = np_heat->offset
const f32 scale = 20; // = np_heat->scale
const f32 range = 20;
f32 heat = NoisePerlin2D(np_heat, p.X, p.Z, seed); // 0..50..100
heat -= np_heat->offset; // -50..0..+50
// normalizing - todo REMOVE after fixed NoiseParams nparams_biome_def_heat = {50, 50, -> 20, 50,
if (np_heat->scale)
heat /= np_heat->scale / scale; // -20..0..+20
f32 seasonv = totaltime;
seasonv /= 86400 * g_settings->getS16("year_days"); // season change speed
seasonv += (f32)p.X / 3000; // you can walk to area with other season
seasonv = sin(seasonv * M_PI);
heat += (range * (heat < 0 ? 2 : 0.5)) * seasonv; // -60..0..30
heat += offset; // -40..0..50
heat += p.Y / -333; // upper=colder, lower=hotter, 3c per 1000
// daily change, hotter at sun +4, colder at night -4
heat += 8 * (sin(cycle_shift(timeofday, -0.25) * M_PI) - 0.5); //-44..20..54
return heat;
}
s16 BiomeDefManager::calcBlockHumidity(v3s16 p, u64 seed, float timeofday, float totaltime) {
f32 humidity = NoisePerlin2D(np_humidity, p.X, p.Z, seed);
f32 seasonv = totaltime;
seasonv /= 86400 * 2; // bad weather change speed (2 days)
seasonv += (f32)p.Z / 300;
humidity += 30 * sin(seasonv * M_PI);
humidity += -12 * (sin(cycle_shift(timeofday, -0.1) * M_PI) - 0.5);
humidity = rangelim(humidity, 0, 100);
return humidity;
}

3
src/biome.h
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@ -91,6 +91,9 @@ public:
void addBiome(Biome *b);
void resolveNodeNames(INodeDefManager *ndef);
u8 getBiomeIdByName(const char *name);
s16 calcBlockHeat(v3s16 p, u64 seed, float timeofday, float totaltime);
s16 calcBlockHumidity(v3s16 p, u64 seed, float timeofday, float totaltime);
};
#endif

6
src/constants.h
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@ -89,5 +89,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
// Maximum hit points of a player
#define PLAYER_MAX_HP 20
/*
Environmental condition constants
*/
#define HEAT_UNDEFINED (-0x7fff-1)
#define HUMIDITY_UNDEFINED (-0x7fff-1)
#endif

6
src/content_abm.cpp
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@ -253,7 +253,7 @@ class LiquidFreeze : public ActiveBlockModifier {
ServerMap *map = &env->getServerMap();
INodeDefManager *ndef = env->getGameDef()->ndef();
float heat = map->getHeat(env, p);
float heat = map->updateBlockHeat(env, p);
//heater = rare
content_t c = map->getNodeNoEx(p - v3s16(0, -1, 0 )).getContent(); // top
//more chance to freeze if air at top
@ -315,7 +315,7 @@ class LiquidMeltWeather : public ActiveBlockModifier {
ServerMap *map = &env->getServerMap();
INodeDefManager *ndef = env->getGameDef()->ndef();
float heat = map->getHeat(env, p);
float heat = map->updateBlockHeat(env, p);
content_t c = map->getNodeNoEx(p - v3s16(0, -1, 0 )).getContent(); // top
if (heat >= 1 && (heat >= 40 || ((myrand_range(heat, 40)) >= (c == CONTENT_AIR ? 10 : 20)))) {
n.freezeMelt(ndef);
@ -378,7 +378,7 @@ void add_legacy_abms(ServerEnvironment *env, INodeDefManager *nodedef) {
env->addActiveBlockModifier(new LiquidDropABM(env, nodedef));
env->addActiveBlockModifier(new LiquidMeltHot(env, nodedef));
//env->addActiveBlockModifier(new LiquidMeltAround(env, nodedef));
if (g_settings->getBool("weather")) {
if (env->m_use_weather) {
env->addActiveBlockModifier(new LiquidFreeze(env, nodedef));
env->addActiveBlockModifier(new LiquidMeltWeather(env, nodedef));
}

11
src/emerge.cpp
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@ -512,8 +512,7 @@ void *EmergeThread::Thread() {
ign(&m_server->m_ignore_map_edit_events_area,
VoxelArea(minp, maxp));
{ // takes about 90ms with -O1 on an e3-1230v2
m_server->getScriptIface()->
environment_OnGenerated(
m_server->getScriptIface()->environment_OnGenerated(
minp, maxp, emerge->getBlockSeed(minp));
}
@ -535,14 +534,6 @@ void *EmergeThread::Thread() {
if (block)
modified_blocks[p] = block;
// Update weather data in mapblock
for(std::map<v3s16, MapBlock *>::iterator
i = modified_blocks.begin();
i != modified_blocks.end(); ++i) {
map->getHeat(m_server->m_env, MAP_BLOCKSIZE*i->first ,i->second);
map->getHumidity(m_server->m_env, MAP_BLOCKSIZE*i->first, i->second);
}
// Set the modified blocks unsent for all the clients
for (std::map<u16, RemoteClient*>::iterator
i = m_server->m_clients.begin();

11
src/environment.cpp
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@ -322,6 +322,7 @@ ServerEnvironment::ServerEnvironment(ServerMap *map,
m_recommended_send_interval(0.1),
m_max_lag_estimate(0.1)
{
m_use_weather = g_settings->getBool("weather");
}
ServerEnvironment::~ServerEnvironment()
@ -809,6 +810,16 @@ void ServerEnvironment::activateBlock(MapBlock *block, u32 additional_dtime)
// Activate stored objects
activateObjects(block, dtime_s);
// Calculate weather conditions
if (m_use_weather) {
m_map->updateBlockHeat(this, block->getPos() * MAP_BLOCKSIZE, block);
m_map->updateBlockHumidity(this, block->getPos() * MAP_BLOCKSIZE, block);
} else {
block->heat = HEAT_UNDEFINED;
block->humidity = HUMIDITY_UNDEFINED;
block->weather_update_time = 0;
}
// Run node timers
std::map<v3s16, NodeTimer> elapsed_timers =
block->m_node_timers.step((float)dtime_s);

4
src/environment.h
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@ -300,6 +300,10 @@ public:
void reportMaxLagEstimate(float f) { m_max_lag_estimate = f; }
float getMaxLagEstimate() { return m_max_lag_estimate; }
// is weather active in this environment?
bool m_use_weather;
private:
/*

106
src/map.cpp
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@ -39,6 +39,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "mapgen_v6.h"
#include "biome.h"
#include "config.h"
#include "server.h"
#include "database.h"
#include "database-dummy.h"
#include "database-sqlite3.h"
@ -2824,6 +2825,38 @@ MapBlock* ServerMap::finishBlockMake(BlockMakeData *data,
/*infostream<<"finishBlockMake() done for ("<<blockpos_requested.X
<<","<<blockpos_requested.Y<<","
<<blockpos_requested.Z<<")"<<std::endl;*/
/*
Update weather data in central blocks if needed
*/
ServerEnvironment *senv = &((Server *)m_gamedef)->getEnv();
if (senv->m_use_weather) {
for(s16 x=blockpos_min.X-extra_borders.X;
x<=blockpos_max.X+extra_borders.X; x++)
for(s16 z=blockpos_min.Z-extra_borders.Z;
z<=blockpos_max.Z+extra_borders.Z; z++)
for(s16 y=blockpos_min.Y-extra_borders.Y;
y<=blockpos_max.Y+extra_borders.Y; y++)
{
v3s16 p(x, y, z);
updateBlockHeat(senv, p * MAP_BLOCKSIZE, NULL);
updateBlockHumidity(senv, p * MAP_BLOCKSIZE, NULL);
}
} else {
for(s16 x=blockpos_min.X-extra_borders.X;
x<=blockpos_max.X+extra_borders.X; x++)
for(s16 z=blockpos_min.Z-extra_borders.Z;
z<=blockpos_max.Z+extra_borders.Z; z++)
for(s16 y=blockpos_min.Y-extra_borders.Y;
y<=blockpos_max.Y+extra_borders.Y; y++)
{
MapBlock *block = getBlockNoCreateNoEx(v3s16(x, y, z));
block->heat = HEAT_UNDEFINED;
block->humidity = HUMIDITY_UNDEFINED;
block->weather_update_time = 0;
}
}
#if 0
if(enable_mapgen_debug_info)
{
@ -3888,74 +3921,41 @@ void ServerMap::PrintInfo(std::ostream &out)
out<<"ServerMap: ";
}
s16 ServerMap::getHeat(ServerEnvironment *env, v3s16 p, MapBlock *block)
s16 ServerMap::updateBlockHeat(ServerEnvironment *env, v3s16 p, MapBlock *block)
{
if(block == NULL)
block = getBlockNoCreateNoEx(getNodeBlockPos(p));
if(block != NULL) {
if (env->getGameTime() - block->heat_time < 10)
u32 gametime = env->getGameTime();
if (block) {
if (gametime - block->weather_update_time < 10)
return block->heat;
} else {
block = getBlockNoCreateNoEx(getNodeBlockPos(p));
}
//variant 1: full random
//f32 heat = NoisePerlin3D(m_emerge->biomedef->np_heat, p.X, env->getGameTime()/100, p.Z, m_emerge->params->seed);
f32 heat = m_emerge->biomedef->calcBlockHeat(p, m_seed,
env->getTimeOfDayF(), gametime * env->getTimeOfDaySpeed());
//variant 2: season change based on default heat map
const f32 offset = 20; // = m_emerge->biomedef->np_heat->offset
const f32 scale = 20; // = m_emerge->biomedef->np_heat->scale
const f32 range = 20;
f32 heat = NoisePerlin2D(m_emerge->biomedef->np_heat, p.X, p.Z,
m_emerge->params->seed); // 0..50..100
heat -= m_emerge->biomedef->np_heat->offset; // -50..0..+50
// normalizing - todo REMOVE after fixed NoiseParams nparams_biome_def_heat = {50, 50, -> 20, 50,
if(m_emerge->biomedef->np_heat->scale)
heat /= m_emerge->biomedef->np_heat->scale / scale; // -20..0..+20
f32 seasonv = (f32)env->getGameTime() * env->getTimeOfDaySpeed();
seasonv /= 86400 * g_settings->getS16("year_days"); // season change speed
seasonv += (f32)p.X / 3000; // you can walk to area with other season
seasonv = sin(seasonv * M_PI);
heat += (range * (heat < 0 ? 2 : 0.5)) * seasonv; // -60..0..30
heat += offset; // -40..0..50
heat += p.Y / -333; // upper=colder, lower=hotter, 3c per 1000
// daily change, hotter at sun +4, colder at night -4
heat += 8 * (sin(cycle_shift(env->getTimeOfDayF(), -0.25) * M_PI) - 0.5); //-44..20..54
if(block != NULL) {
block->heat = heat;
block->heat_time = env->getGameTime();
}
block->weather_update_time = gametime;
return heat;
}
s16 ServerMap::getHumidity(ServerEnvironment *env, v3s16 p, MapBlock *block)
s16 ServerMap::updateBlockHumidity(ServerEnvironment *env, v3s16 p, MapBlock *block)
{
if(block == NULL)
block = getBlockNoCreateNoEx(getNodeBlockPos(p));
if(block != NULL) {
if (env->getGameTime() - block->humidity_time < 10)
u32 gametime = env->getGameTime();
if (block) {
if (gametime - block->weather_update_time < 10)
return block->humidity;
} else {
block = getBlockNoCreateNoEx(getNodeBlockPos(p));
}
f32 humidity = NoisePerlin2D(m_emerge->biomedef->np_humidity, p.X, p.Z,
m_emerge->params->seed);
f32 humidity = m_emerge->biomedef->calcBlockHumidity(p, m_seed,
env->getTimeOfDayF(), gametime * env->getTimeOfDaySpeed());
f32 seasonv = (f32)env->getGameTime() * env->getTimeOfDaySpeed();
seasonv /= 86400 * 2; // bad weather change speed (2 days)
seasonv += (f32)p.Z / 300;
humidity += 30 * sin(seasonv * M_PI);
humidity += -12 * ( sin(cycle_shift(env->getTimeOfDayF(), -0.1) * M_PI) - 0.5);
humidity = rangelim(humidity, 0, 100);
if(block != NULL) {
block->humidity = humidity;
block->humidity_time = env->getGameTime();
}
block->weather_update_time = gametime;
return humidity;
}

4
src/map.h
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@ -477,8 +477,8 @@ public:
// Parameters fed to the Mapgen
MapgenParams *m_mgparams;
virtual s16 getHeat(ServerEnvironment *env, v3s16 p, MapBlock *block = NULL);
virtual s16 getHumidity(ServerEnvironment *env, v3s16 p, MapBlock *block = NULL);
virtual s16 updateBlockHeat(ServerEnvironment *env, v3s16 p, MapBlock *block = NULL);
virtual s16 updateBlockHumidity(ServerEnvironment *env, v3s16 p, MapBlock *block = NULL);
private:
// Seed used for all kinds of randomness in generation

3
src/mapblock.cpp
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@ -44,9 +44,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
MapBlock::MapBlock(Map *parent, v3s16 pos, IGameDef *gamedef, bool dummy):
heat(0),
heat_time(0),
humidity(0),
humidity_time(0),
weather_update_time(0),
m_parent(parent),
m_pos(pos),
m_gamedef(gamedef),

3
src/mapblock.h
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@ -515,9 +515,8 @@ public:
StaticObjectList m_static_objects;
s16 heat;
u32 heat_time;
s16 humidity;
u32 humidity_time;
u32 weather_update_time;
private:
/*

4
src/script/lua_api/l_env.cpp
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@ -764,7 +764,7 @@ int ModApiEnvMod::l_get_heat(lua_State *L)
GET_ENV_PTR;
v3s16 pos = read_v3s16(L, 1);
lua_pushnumber(L, env->getServerMap().getHeat(env, pos));
lua_pushnumber(L, env->getServerMap().updateBlockHeat(env, pos));
return 1;
}
@ -775,7 +775,7 @@ int ModApiEnvMod::l_get_humidity(lua_State *L)
GET_ENV_PTR;
v3s16 pos = read_v3s16(L, 1);
lua_pushnumber(L, env->getServerMap().getHumidity(env, pos));
lua_pushnumber(L, env->getServerMap().updateBlockHumidity(env, pos));
return 1;
}

1
src/server.h
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@ -489,6 +489,7 @@ public:
bool showFormspec(const char *name, const std::string &formspec, const std::string &formname);
Map & getMap() { return m_env->getMap(); }
ServerEnvironment & getEnv() { return *m_env; }
u32 hudAdd(Player *player, HudElement *element);
bool hudRemove(Player *player, u32 id);