forked from Mirrorlandia_minetest/minetest
Add Perlin noise map Lua API
This commit is contained in:
kwolekr
parent
a73905401a
commit
75fe948bf7
@ -693,6 +693,30 @@ static NodeBox read_nodebox(lua_State *L, int index)
|
||||
return nodebox;
|
||||
}
|
||||
|
||||
/*
|
||||
NoiseParams
|
||||
*/
|
||||
static NoiseParams *read_noiseparams(lua_State *L, int index)
|
||||
{
|
||||
if (index < 0)
|
||||
index = lua_gettop(L) + 1 + index;
|
||||
|
||||
if (!lua_istable(L, index))
|
||||
return NULL;
|
||||
|
||||
NoiseParams *np = new NoiseParams;
|
||||
|
||||
np->offset = getfloatfield_default(L, index, "offset", 0.0);
|
||||
np->scale = getfloatfield_default(L, index, "scale", 0.0);
|
||||
lua_getfield(L, index, "spread");
|
||||
np->spread = read_v3f(L, -1);
|
||||
np->seed = getintfield_default(L, index, "seed", 0);
|
||||
np->octaves = getintfield_default(L, index, "octaves", 0);
|
||||
np->persist = getfloatfield_default(L, index, "persist", 0.0);
|
||||
|
||||
return np;
|
||||
}
|
||||
|
||||
/*
|
||||
Groups
|
||||
*/
|
||||
@ -3241,11 +3265,6 @@ static void objectref_get_or_create(lua_State *L,
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
PerlinNoise
|
||||
*/
|
||||
|
||||
class LuaPerlinNoise
|
||||
{
|
||||
private:
|
||||
@ -3355,6 +3374,145 @@ const luaL_reg LuaPerlinNoise::methods[] = {
|
||||
{0,0}
|
||||
};
|
||||
|
||||
/*
|
||||
PerlinNoiseMap
|
||||
*/
|
||||
class LuaPerlinNoiseMap
|
||||
{
|
||||
private:
|
||||
Noise *noise;
|
||||
static const char className[];
|
||||
static const luaL_reg methods[];
|
||||
|
||||
static int gc_object(lua_State *L)
|
||||
{
|
||||
LuaPerlinNoiseMap *o = *(LuaPerlinNoiseMap **)(lua_touserdata(L, 1));
|
||||
delete o;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int l_get2dMap(lua_State *L)
|
||||
{
|
||||
int i = 0;
|
||||
|
||||
LuaPerlinNoiseMap *o = checkobject(L, 1);
|
||||
v2f p = read_v2f(L, 2);
|
||||
|
||||
Noise *n = o->noise;
|
||||
n->perlinMap2D(p.X, p.Y);
|
||||
|
||||
lua_newtable(L);
|
||||
for (int y = 0; y != n->sy; y++) {
|
||||
lua_newtable(L);
|
||||
for (int x = 0; x != n->sx; x++) {
|
||||
float noiseval = n->np->offset + n->np->scale * n->result[i++];
|
||||
lua_pushnumber(L, noiseval);
|
||||
lua_rawseti(L, -2, x + 1);
|
||||
}
|
||||
lua_rawseti(L, -2, y + 1);
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int l_get3dMap(lua_State *L)
|
||||
{
|
||||
int i = 0;
|
||||
|
||||
LuaPerlinNoiseMap *o = checkobject(L, 1);
|
||||
v3f p = read_v3f(L, 2);
|
||||
|
||||
Noise *n = o->noise;
|
||||
n->perlinMap3D(p.X, p.Y, p.Z);
|
||||
|
||||
lua_newtable(L);
|
||||
for (int z = 0; z != n->sz; z++) {
|
||||
lua_newtable(L);
|
||||
for (int y = 0; y != n->sy; y++) {
|
||||
lua_newtable(L);
|
||||
for (int x = 0; x != n->sx; x++) {
|
||||
lua_pushnumber(L, n->np->offset + n->np->scale * n->result[i++]);
|
||||
lua_rawseti(L, -2, x + 1);
|
||||
}
|
||||
lua_rawseti(L, -2, y + 1);
|
||||
}
|
||||
lua_rawseti(L, -2, z + 1);
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
public:
|
||||
LuaPerlinNoiseMap(NoiseParams *np, int seed, v3s16 size) {
|
||||
noise = new Noise(np, seed, size.X, size.Y, size.Z);
|
||||
}
|
||||
|
||||
~LuaPerlinNoiseMap()
|
||||
{
|
||||
delete noise->np;
|
||||
delete noise;
|
||||
}
|
||||
|
||||
// LuaPerlinNoiseMap(np, size)
|
||||
// Creates an LuaPerlinNoiseMap and leaves it on top of stack
|
||||
static int create_object(lua_State *L)
|
||||
{
|
||||
NoiseParams *np = read_noiseparams(L, 1);
|
||||
if (!np)
|
||||
return 0;
|
||||
v3s16 size = read_v3s16(L, 2);
|
||||
|
||||
LuaPerlinNoiseMap *o = new LuaPerlinNoiseMap(np, 0, size);
|
||||
*(void **)(lua_newuserdata(L, sizeof(void *))) = o;
|
||||
luaL_getmetatable(L, className);
|
||||
lua_setmetatable(L, -2);
|
||||
return 1;
|
||||
}
|
||||
|
||||
static LuaPerlinNoiseMap *checkobject(lua_State *L, int narg)
|
||||
{
|
||||
luaL_checktype(L, narg, LUA_TUSERDATA);
|
||||
|
||||
void *ud = luaL_checkudata(L, narg, className);
|
||||
if (!ud)
|
||||
luaL_typerror(L, narg, className);
|
||||
|
||||
return *(LuaPerlinNoiseMap **)ud; // unbox pointer
|
||||
}
|
||||
|
||||
static void Register(lua_State *L)
|
||||
{
|
||||
lua_newtable(L);
|
||||
int methodtable = lua_gettop(L);
|
||||
luaL_newmetatable(L, className);
|
||||
int metatable = lua_gettop(L);
|
||||
|
||||
lua_pushliteral(L, "__metatable");
|
||||
lua_pushvalue(L, methodtable);
|
||||
lua_settable(L, metatable); // hide metatable from Lua getmetatable()
|
||||
|
||||
lua_pushliteral(L, "__index");
|
||||
lua_pushvalue(L, methodtable);
|
||||
lua_settable(L, metatable);
|
||||
|
||||
lua_pushliteral(L, "__gc");
|
||||
lua_pushcfunction(L, gc_object);
|
||||
lua_settable(L, metatable);
|
||||
|
||||
lua_pop(L, 1); // drop metatable
|
||||
|
||||
luaL_openlib(L, 0, methods, 0); // fill methodtable
|
||||
lua_pop(L, 1); // drop methodtable
|
||||
|
||||
// Can be created from Lua (PerlinNoiseMap(np, size)
|
||||
lua_register(L, className, create_object);
|
||||
}
|
||||
};
|
||||
const char LuaPerlinNoiseMap::className[] = "PerlinNoiseMap";
|
||||
const luaL_reg LuaPerlinNoiseMap::methods[] = {
|
||||
method(LuaPerlinNoiseMap, get2dMap),
|
||||
method(LuaPerlinNoiseMap, get3dMap),
|
||||
{0,0}
|
||||
};
|
||||
|
||||
/*
|
||||
NodeTimerRef
|
||||
*/
|
||||
@ -4019,6 +4177,28 @@ private:
|
||||
lua_setmetatable(L, -2);
|
||||
return 1;
|
||||
}
|
||||
|
||||
// EnvRef:get_perlin_map(noiseparams, size)
|
||||
// returns world-specific PerlinNoiseMap
|
||||
static int l_get_perlin_map(lua_State *L)
|
||||
{
|
||||
EnvRef *o = checkobject(L, 1);
|
||||
ServerEnvironment *env = o->m_env;
|
||||
if (env == NULL)
|
||||
return 0;
|
||||
|
||||
NoiseParams *np = read_noiseparams(L, 2);
|
||||
if (!np)
|
||||
return 0;
|
||||
v3s16 size = read_v3s16(L, 3);
|
||||
|
||||
int seed = (int)(env->getServerMap().getSeed());
|
||||
LuaPerlinNoiseMap *n = new LuaPerlinNoiseMap(np, seed, size);
|
||||
*(void **)(lua_newuserdata(L, sizeof(void *))) = n;
|
||||
luaL_getmetatable(L, "PerlinNoiseMap");
|
||||
lua_setmetatable(L, -2);
|
||||
return 1;
|
||||
}
|
||||
|
||||
// EnvRef:clear_objects()
|
||||
// clear all objects in the environment
|
||||
@ -4158,8 +4338,7 @@ 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, get_perlin_map),
|
||||
method(EnvRef, clear_objects),
|
||||
method(EnvRef, spawn_tree),
|
||||
{0,0}
|
||||
@ -5424,6 +5603,7 @@ void scriptapi_export(lua_State *L, Server *server)
|
||||
EnvRef::Register(L);
|
||||
LuaPseudoRandom::Register(L);
|
||||
LuaPerlinNoise::Register(L);
|
||||
LuaPerlinNoiseMap::Register(L);
|
||||
}
|
||||
|
||||
bool scriptapi_loadmod(lua_State *L, const std::string &scriptpath,
|
||||
|
||||
Loading…
Reference in New Issue
Block a user