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Make flag strings clear specified flag with 'no' prefix 

Remove flagmask field from set_mapgen_params table
Add small bits of needed documentation
This commit is contained in:
kwolekr 2014-02-08 17:50:26 -05:00
parent f4f98c9550
commit 83bafbe08b
19 changed files with 122 additions and 78 deletions
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7
doc/lua_api.txt
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@ -1360,11 +1360,10 @@ minetest.get_mapgen_object(objectname)
minetest.set_mapgen_params(MapgenParams)
^ Set map generation parameters
^ Function cannot be called after the registration period; only initialization and on_mapgen_init
^ Takes a table as an argument with the fields mgname, seed, water_level, flags, and flagmask.
^ Takes a table as an argument with the fields mgname, seed, water_level, and flags.
^ Leave field unset to leave that parameter unchanged
^ flagmask field must be set to all mapgen flags that are being modified
^ flags contains only the flags that are being set
^ flags and flagmask are in the same format and have the same options as 'mgflags' in minetest.conf
^ flags contains a comma-delimited string of flags to set, or if the prefix "no" is attached, clears instead.
^ flags is in the same format and has the same options as 'mg_flags' in minetest.conf
minetest.clear_objects()
^ clear all objects in the environments
minetest.line_of_sight(pos1, pos2, stepsize) -> true/false, pos

10
minetest.conf.example
View File

@ -381,10 +381,12 @@
#water_level = 1
# Size of chunks to be generated.
#chunksize = 5
# Map generation attributes. Currently supported: trees, caves, flat, dungeons, nolight
# Map generation attributes. Currently supported: trees, caves, flat, dungeons, light
# Flags that are not specified in the flag string are not modified from the default.
# To explicitly turn off a flag, prepend "no" to the beginning, e.g. nolight.
#mg_flags = trees, caves
# Map generation attributes specific to Mapgen V6. Currently supported: v6_biome_blend, v6_jungles, v6_nomudflow
#mgv6_spflags = v6_biome_blend
# Map generation attributes specific to Mapgen V6. Currently supported: biomeblend, jungles, mudflow
#mgv6_spflags = biomeblend
# How large deserts and beaches are
#mgv6_freq_desert = 0.45
#mgv6_freq_beach = 0.15
@ -402,7 +404,7 @@
#mgv6_np_trees = 0, 1, (125, 125, 125), 2, 4, 0.66
#mgv6_np_apple_trees = 0, 1, (100, 100, 100), 342902, 3, 0.45
#mgv7_spflags = v7_mountains, v7_ridges
#mgv7_spflags = mountains, ridges
#mgv7_np_terrain = 10, 12, (350, 350, 350), 82341, 5, 0.6
#mgv7_np_bgroup = 0.5, 0.3125, (350, 350, 350), 5923, 2, 0.6
#mgv7_np_heat = 25, 50, (500, 500, 500), 35293, 1, 0

2
src/defaultsettings.cpp
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@ -249,7 +249,7 @@ void set_default_settings(Settings *settings)
settings->setDefault("mg_name", "v6");
settings->setDefault("water_level", "1");
settings->setDefault("chunksize", "5");
settings->setDefault("mg_flags", "trees, caves");
settings->setDefault("mg_flags", "");
settings->setDefault("mgmath_generator", "mandelbox");

3
src/emerge.cpp
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@ -372,7 +372,6 @@ void EmergeManager::loadParamsFromSettings(Settings *settings) {
params.sparams = createMapgenParams(params.mg_name);
if (params.sparams)
params.sparams->readParams(settings);
}
@ -381,7 +380,7 @@ void EmergeManager::saveParamsToSettings(Settings *settings) {
settings->setU64("seed", params.seed);
settings->setS16("water_level", params.water_level);
settings->setS16("chunksize", params.chunksize);
settings->setFlagStr("mg_flags", params.flags, flagdesc_mapgen);
settings->setFlagStr("mg_flags", params.flags, flagdesc_mapgen, (u32)-1);
if (params.sparams)
params.sparams->writeParams(settings);

12
src/mapgen.cpp
View File

@ -41,12 +41,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
FlagDesc flagdesc_mapgen[] = {
{"trees", MG_TREES},
{"caves", MG_CAVES},
{"dungeons", MG_DUNGEONS},
{"flat", MG_FLAT},
{"nolight", MG_NOLIGHT},
{NULL, 0}
{"trees", MG_TREES},
{"caves", MG_CAVES},
{"dungeons", MG_DUNGEONS},
{"flat", MG_FLAT},
{"light", MG_LIGHT},
{NULL, 0}
};
FlagDesc flagdesc_ore[] = {

6
src/mapgen.h
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@ -35,7 +35,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#define MG_CAVES 0x02
#define MG_DUNGEONS 0x04
#define MG_FLAT 0x08
#define MG_NOLIGHT 0x10
#define MG_LIGHT 0x10
/////////////////// Ore generation flags
// Use absolute value of height to determine ore placement
@ -114,11 +114,11 @@ struct MapgenParams {
MapgenSpecificParams *sparams;
MapgenParams() {
mg_name = "v6";
mg_name = DEFAULT_MAPGEN;
seed = 0;
water_level = 1;
chunksize = 5;
flags = MG_TREES | MG_CAVES;
flags = MG_TREES | MG_CAVES | MG_LIGHT;
sparams = NULL;
}
};

2
src/mapgen_math.cpp
View File

@ -169,7 +169,7 @@ void MapgenMathParams::writeParams(Settings *settings) {
MapgenMath::MapgenMath(int mapgenid, MapgenParams *params_, EmergeManager *emerge) : MapgenV7(mapgenid, params_, emerge) {
mg_params = (MapgenMathParams *)params_;
this->flags |= MG_NOLIGHT;
this->flags &= ~MG_LIGHT;
Json::Value & params = mg_params->params;
invert = params["invert"].empty() ? 1 : params["invert"].asBool(); //params["invert"].empty()?1:params["invert"].asBool();

2
src/mapgen_singlenode.cpp
View File

@ -89,7 +89,7 @@ void MapgenSinglenode::makeChunk(BlockMakeData *data) {
updateLiquid(&data->transforming_liquid, node_min, node_max);
// Calculate lighting
if (!(flags & MG_NOLIGHT))
if (flags & MG_LIGHT)
calcLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE,
node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);

18
src/mapgen_v6.cpp
View File

@ -38,10 +38,10 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "mapgen_v6.h"
FlagDesc flagdesc_mapgen_v6[] = {
{"v6_jungles", MGV6_JUNGLES},
{"v6_biome_blend", MGV6_BIOME_BLEND},
{"v6_nomudflow", MGV6_NOMUDFLOW},
{NULL, 0}
{"jungles", MGV6_JUNGLES},
{"biomeblend", MGV6_BIOMEBLEND},
{"mudflow", MGV6_MUDFLOW},
{NULL, 0}
};
///////////////////////////////////////////////////////////////////////////////
@ -93,7 +93,7 @@ MapgenV6::~MapgenV6() {
MapgenV6Params::MapgenV6Params() {
spflags = MGV6_BIOME_BLEND;
spflags = MGV6_BIOMEBLEND | MGV6_MUDFLOW;
freq_desert = 0.45;
freq_beach = 0.15;
@ -131,7 +131,7 @@ void MapgenV6Params::readParams(Settings *settings) {
void MapgenV6Params::writeParams(Settings *settings) {
settings->setFlagStr("mgv6_spflags", spflags, flagdesc_mapgen_v6);
settings->setFlagStr("mgv6_spflags", spflags, flagdesc_mapgen_v6, (u32)-1);
settings->setFloat("mgv6_freq_desert", freq_desert);
settings->setFloat("mgv6_freq_beach", freq_beach);
@ -365,7 +365,7 @@ BiomeType MapgenV6::getBiome(int index, v2s16 p)
if (d > freq_desert)
return BT_DESERT;
if ((spflags & MGV6_BIOME_BLEND) &&
if ((spflags & MGV6_BIOMEBLEND) &&
(d > freq_desert - 0.10) &&
((noise2d(p.X, p.Y, seed) + 1.0) > (freq_desert - d) * 20.0))
return BT_DESERT;
@ -481,7 +481,7 @@ void MapgenV6::makeChunk(BlockMakeData *data) {
addDirtGravelBlobs();
// Flow mud away from steep edges
if (!(spflags & MGV6_NOMUDFLOW))
if (spflags & MGV6_MUDFLOW)
flowMud(mudflow_minpos, mudflow_maxpos);
}
@ -543,7 +543,7 @@ void MapgenV6::makeChunk(BlockMakeData *data) {
}
// Calculate lighting
if (!(flags & MG_NOLIGHT))
if (flags & MG_LIGHT)
calcLighting(node_min - v3s16(1, 1, 1) * MAP_BLOCKSIZE,
node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);

6
src/mapgen_v6.h
View File

@ -25,9 +25,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#define AVERAGE_MUD_AMOUNT 4
/////////////////// Mapgen V6 flags
#define MGV6_JUNGLES 0x01
#define MGV6_BIOME_BLEND 0x02
#define MGV6_NOMUDFLOW 0x04
#define MGV6_JUNGLES 0x01
#define MGV6_BIOMEBLEND 0x02
#define MGV6_MUDFLOW 0x04
extern FlagDesc flagdesc_mapgen_v6[];

16
src/mapgen_v7.cpp
View File

@ -39,9 +39,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
FlagDesc flagdesc_mapgen_v7[] = {
{"v7_mountains", MGV7_MOUNTAINS},
{"v7_ridges", MGV7_RIDGES},
{NULL, 0}
{"mountains", MGV7_MOUNTAINS},
{"ridges", MGV7_RIDGES},
{NULL, 0}
};
///////////////////////////////////////////////////////////////////////////////
@ -53,10 +53,10 @@ MapgenV7::MapgenV7(int mapgenid, MapgenParams *params, EmergeManager *emerge) {
this->emerge = emerge;
this->bmgr = emerge->biomedef;
this->seed = (int)params->seed;
this->seed = (int)params->seed;
this->water_level = params->water_level;
this->flags = params->flags | MGV7_MOUNTAINS | MGV7_RIDGES;
this->gennotify = emerge->gennotify;
this->flags = params->flags;
this->gennotify = emerge->gennotify;
this->csize = v3s16(1, 1, 1) * params->chunksize * MAP_BLOCKSIZE;
@ -141,7 +141,7 @@ void MapgenV7Params::readParams(Settings *settings) {
void MapgenV7Params::writeParams(Settings *settings) {
settings->setFlagStr("mgv7_spflags", spflags, flagdesc_mapgen_v7);
settings->setFlagStr("mgv7_spflags", spflags, flagdesc_mapgen_v7, (u32)-1);
settings->setNoiseParams("mgv7_np_terrain_base", np_terrain_base);
settings->setNoiseParams("mgv7_np_terrain_alt", np_terrain_alt);
@ -262,7 +262,7 @@ void MapgenV7::makeChunk(BlockMakeData *data) {
updateLiquid(&data->transforming_liquid, full_node_min, full_node_max);
if (!(flags & MG_NOLIGHT))
if (flags & MG_LIGHT)
calcLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE,
node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
//setLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE,

1
src/porting.h
View File

@ -87,6 +87,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#define strtoll(x, y, z) _strtoi64(x, y, z)
#define strtoull(x, y, z) _strtoui64(x, y, z)
#define strcasecmp(x, y) stricmp(x, y)
#define strncasecmp(x, y, n) strnicmp(x, y, n)
#else
#define ALIGNOF(x) __alignof__(x)
#endif

11
src/script/common/c_content.cpp
View File

@ -839,12 +839,11 @@ void push_hit_params(lua_State *L,const HitParams &params)
}
/******************************************************************************/
u32 getflagsfield(lua_State *L, int table,
const char *fieldname, FlagDesc *flagdesc) {
std::string flagstring;
flagstring = getstringfield_default(L, table, fieldname, "");
return readFlagString(flagstring, flagdesc);
u32 getflagsfield(lua_State *L, int table, const char *fieldname,
FlagDesc *flagdesc, u32 *flagmask)
{
std::string flagstring = getstringfield_default(L, table, fieldname, "");
return readFlagString(flagstring, flagdesc, flagmask);
}
/******************************************************************************/

2
src/script/common/c_content.h
View File

@ -121,7 +121,7 @@ int getenumfield (lua_State *L,
u32 getflagsfield (lua_State *L, int table,
const char *fieldname,
FlagDesc *flagdesc);
FlagDesc *flagdesc, u32 *flagmask);
void push_items (lua_State *L,
const std::vector<ItemStack> &items);

3
src/script/cpp_api/s_env.cpp
View File

@ -78,7 +78,8 @@ void ScriptApiEnv::environment_OnMapgenInit(MapgenParams *mgparams)
lua_pushinteger(L, mgparams->water_level);
lua_setfield(L, -2, "water_level");
std::string flagstr = writeFlagString(mgparams->flags, flagdesc_mapgen);
std::string flagstr = writeFlagString(mgparams->flags,
flagdesc_mapgen, (u32)-1);
lua_pushstring(L, flagstr.c_str());
lua_setfield(L, -2, "flags");

21
src/script/lua_api/l_mapgen.cpp
View File

@ -210,13 +210,20 @@ int ModApiMapgen::l_set_mapgen_params(lua_State *L)
lua_getfield(L, 1, "flagmask");
if (lua_isstring(L, -1)) {
flagstr = lua_tostring(L, -1);
emerge->params.flags &= ~readFlagString(flagstr, flagdesc_mapgen);
emerge->params.flags &= ~readFlagString(flagstr, flagdesc_mapgen, NULL);
errorstream << "set_mapgen_params(): flagmask field is deprecated, "
"see lua_api.txt" << std::endl;
}
lua_getfield(L, 1, "flags");
if (lua_isstring(L, -1)) {
u32 flags, flagmask;
flagstr = lua_tostring(L, -1);
emerge->params.flags |= readFlagString(flagstr, flagdesc_mapgen);
flags = readFlagString(flagstr, flagdesc_mapgen, &flagmask);
emerge->params.flags &= ~flagmask;
emerge->params.flags |= flags;
}
return 0;
@ -227,7 +234,8 @@ int ModApiMapgen::l_set_gen_notify(lua_State *L)
{
if (lua_isstring(L, 1)) {
EmergeManager *emerge = getServer(L)->getEmergeManager();
emerge->gennotify = readFlagString(lua_tostring(L, 1), flagdesc_gennotify);
emerge->gennotify = readFlagString(lua_tostring(L, 1),
flagdesc_gennotify, NULL);
}
return 0;
}
@ -371,9 +379,10 @@ int ModApiMapgen::l_register_decoration(lua_State *L)
break; }
case DECO_SCHEMATIC: {
DecoSchematic *dschem = (DecoSchematic *)deco;
dschem->flags = getflagsfield(L, index, "flags", flagdesc_deco_schematic);
dschem->flags = getflagsfield(L, index, "flags",
flagdesc_deco_schematic, NULL);
dschem->rotation = (Rotation)getenumfield(L, index,
"rotation", es_Rotation, ROTATE_0);
"rotation", es_Rotation, ROTATE_0);
lua_getfield(L, index, "replacements");
if (lua_istable(L, -1)) {
@ -445,7 +454,7 @@ int ModApiMapgen::l_register_ore(lua_State *L)
ore->clust_size = getintfield_default(L, index, "clust_size", 0);
ore->height_min = getintfield_default(L, index, "height_min", 0);
ore->height_max = getintfield_default(L, index, "height_max", 0);
ore->flags = getflagsfield(L, index, "flags", flagdesc_ore);
ore->flags = getflagsfield(L, index, "flags", flagdesc_ore, NULL);
ore->nthresh = getfloatfield_default(L, index, "noise_threshhold", 0.);
lua_getfield(L, index, "wherein");

28
src/settings.h
View File

@ -572,12 +572,15 @@ public:
return value;
}
u32 getFlagStr(std::string name, FlagDesc *flagdesc)
u32 getFlagStr(std::string name, FlagDesc *flagdesc, u32 *flagmask)
{
std::string val = get(name);
return (isdigit(val[0])) ? stoi(val) : readFlagString(val, flagdesc);
return (isdigit(val[0])) ? stoi(val) :
readFlagString(val, flagdesc, flagmask);
}
// N.B. if getStruct() is used to read a non-POD aggregate type,
// the behavior is undefined.
bool getStruct(std::string name, std::string format, void *out, size_t olen)
{
size_t len = olen;
@ -755,10 +758,19 @@ fail:
}
}
// N.B. getFlagStrNoEx() does not set val, but merely modifies it. Thus,
// val must be initialized before using getFlagStrNoEx(). The intention of
// this is to simplify modifying a flags field from a default value.
bool getFlagStrNoEx(std::string name, u32 &val, FlagDesc *flagdesc)
{
try {
val = getFlagStr(name, flagdesc);
u32 flags, flagmask;
flags = getFlagStr(name, flagdesc, &flagmask);
val &= ~flagmask;
val |= flags;
return true;
} catch (SettingNotFoundException &e) {
return false;
@ -856,6 +868,9 @@ fail:
}
//////////// Set setting
// N.B. if setStruct() is used to write a non-POD aggregate type,
// the behavior is undefined.
bool setStruct(std::string name, std::string format, void *value)
{
char sbuf[2048];
@ -959,10 +974,11 @@ fail:
set(name, std::string(sbuf));
return true;
}
void setFlagStr(std::string name, u32 flags, FlagDesc *flagdesc)
void setFlagStr(std::string name, u32 flags,
FlagDesc *flagdesc, u32 flagmask)
{
set(name, writeFlagString(flags, flagdesc));
set(name, writeFlagString(flags, flagdesc, flagmask));
}
void setBool(std::string name, bool value)

46
src/util/string.cpp
View File

@ -108,46 +108,63 @@ std::string urldecode(std::string str)
return oss.str();
}
u32 readFlagString(std::string str, FlagDesc *flagdesc) {
u32 result = 0;
u32 readFlagString(std::string str, FlagDesc *flagdesc, u32 *flagmask)
{
u32 result = 0, mask = 0;
char *s = &str[0];
char *flagstr, *strpos = NULL;
while ((flagstr = strtok_r(s, ",", &strpos))) {
s = NULL;
while (*flagstr == ' ' || *flagstr == '\t')
flagstr++;
bool flagset = true;
if (!strncasecmp(flagstr, "no", 2)) {
flagset = false;
flagstr += 2;
}
for (int i = 0; flagdesc[i].name; i++) {
if (!strcasecmp(flagstr, flagdesc[i].name)) {
result |= flagdesc[i].flag;
mask |= flagdesc[i].flag;
if (flagset)
result |= flagdesc[i].flag;
break;
}
}
}
if (flagmask)
*flagmask = mask;
return result;
}
std::string writeFlagString(u32 flags, FlagDesc *flagdesc) {
std::string writeFlagString(u32 flags, FlagDesc *flagdesc, u32 flagmask)
{
std::string result;
for (int i = 0; flagdesc[i].name; i++) {
if (flags & flagdesc[i].flag) {
if (flagmask & flagdesc[i].flag) {
if (!(flags & flagdesc[i].flag))
result += "no";
result += flagdesc[i].name;
result += ", ";
}
}
size_t len = result.length();
if (len >= 2)
result.erase(len - 2, 2);
return result;
}
char *mystrtok_r(char *s, const char *sep, char **lasts) {
char *mystrtok_r(char *s, const char *sep, char **lasts)
{
char *t;
if (!s)
@ -172,7 +189,8 @@ char *mystrtok_r(char *s, const char *sep, char **lasts) {
return s;
}
u64 read_seed(const char *str) {
u64 read_seed(const char *str)
{
char *endptr;
u64 num;

4
src/util/string.h
View File

@ -319,8 +319,8 @@ inline std::string unescape_string(std::string &s)
std::string translatePassword(std::string playername, std::wstring password);
std::string urlencode(std::string str);
std::string urldecode(std::string str);
u32 readFlagString(std::string str, FlagDesc *flagdesc);
std::string writeFlagString(u32 flags, FlagDesc *flagdesc);
u32 readFlagString(std::string str, FlagDesc *flagdesc, u32 *flagmask);
std::string writeFlagString(u32 flags, FlagDesc *flagdesc, u32 flagmask);
char *mystrtok_r(char *s, const char *sep, char **lasts);
u64 read_seed(const char *str);