Fix naming conventions of noise userdata

doc/lua_api.txt

@@ -3893,8 +3893,8 @@ Alternatively with `minetest.get_perlin(seeddiff, octaves, persistence, scale)`
or `minetest.get_perlin(noiseparams)`.

#### Methods
* `get2d(pos)`: returns 2D noise value at `pos={x=,y=}`
* `get3d(pos)`: returns 3D noise value at `pos={x=,y=,z=}`
* `get_2d(pos)`: returns 2D noise value at `pos={x=,y=}`
* `get_3d(pos)`: returns 3D noise value at `pos={x=,y=,z=}`

### `PerlinNoiseMap`
A fast, bulk perlin noise generator.
@@ -3911,25 +3911,25 @@ nil, this table will be used to store the result instead of creating a new table


#### Methods
* `get2dMap(pos)`: returns a `<size.x>` times `<size.y>` 2D array of 2D noise
* `get_2d_map(pos)`: returns a `<size.x>` times `<size.y>` 2D array of 2D noise
  with values starting at `pos={x=,y=}`
* `get3dMap(pos)`: returns a `<size.x>` times `<size.y>` times `<size.z>` 3D array
* `get_3d_map(pos)`: returns a `<size.x>` times `<size.y>` times `<size.z>` 3D array
  of 3D noise with values starting at `pos={x=,y=,z=}`
* `get2dMap_flat(pos, buffer)`: returns a flat `<size.x * size.y>` element array of 2D noise
* `get_2d_map_flat(pos, buffer)`: returns a flat `<size.x * size.y>` element array of 2D noise
  with values starting at `pos={x=,y=}`
* `get3dMap_flat(pos, buffer)`: Same as `get2dMap_flat`, but 3D noise
* `calc2dMap(pos)`: Calculates the 2d noise map starting at `pos`.  The result is stored internally.
* `calc3dMap(pos)`: Calculates the 3d noise map starting at `pos`.  The result is stored internally.
* `getMapSlice(slice_offset, slice_size, buffer)`: In the form of an array, returns a slice of the
* `get_3d_map_flat(pos, buffer)`: Same as `get2dMap_flat`, but 3D noise
* `calc_2d_map(pos)`: Calculates the 2d noise map starting at `pos`.  The result is stored internally.
* `calc_3d_map(pos)`: Calculates the 3d noise map starting at `pos`.  The result is stored internally.
* `get_map_slice(slice_offset, slice_size, buffer)`: In the form of an array, returns a slice of the
  most recently computed noise results.  The result slice begins at coordinates `slice_offset` and
  takes a chunk of `slice_size`.
  E.g. to grab a 2-slice high horizontal 2d plane of noise starting at buffer offset y = 20:
  `noisevals = noise:getMapSlice({y=20}, {y=2})`
  `noisevals = noise:get_map_slice({y=20}, {y=2})`
  It is important to note that `slice_offset` offset coordinates begin at 1, and are relative to
  the starting position of the most recently calculated noise.
  To grab a single vertical column of noise starting at map coordinates x = 1023, y=1000, z = 1000:
  `noise:calc3dMap({x=1000, y=1000, z=1000})`
  `noisevals = noise:getMapSlice({x=24, z=1}, {x=1, z=1})`
  `noise:calc_3d_map({x=1000, y=1000, z=1000})`
  `noisevals = noise:get_map_slice({x=24, z=1}, {x=1, z=1})`

### `VoxelManip`

src/script/lua_api/l_noise.cpp

@@ -36,7 +36,7 @@ LuaPerlinNoise::LuaPerlinNoise(NoiseParams *params) :
}


int LuaPerlinNoise::l_get2d(lua_State *L)
int LuaPerlinNoise::l_get_2d(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	LuaPerlinNoise *o = checkobject(L, 1);
@@ -47,7 +47,7 @@ int LuaPerlinNoise::l_get2d(lua_State *L)
}


int LuaPerlinNoise::l_get3d(lua_State *L)
int LuaPerlinNoise::l_get_3d(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	LuaPerlinNoise *o = checkobject(L, 1);
@@ -131,8 +131,8 @@ void LuaPerlinNoise::Register(lua_State *L)

const char LuaPerlinNoise::className[] = "PerlinNoise";
const luaL_Reg LuaPerlinNoise::methods[] = {
	luamethod(LuaPerlinNoise, get2d),
	luamethod(LuaPerlinNoise, get3d),
	luamethod_aliased(LuaPerlinNoise, get_2d, get2d),
	luamethod_aliased(LuaPerlinNoise, get_3d, get3d),
	{0,0}
};

@@ -159,7 +159,7 @@ LuaPerlinNoiseMap::~LuaPerlinNoiseMap()
}


int LuaPerlinNoiseMap::l_get2dMap(lua_State *L)
int LuaPerlinNoiseMap::l_get_2d_map(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	size_t i = 0;
@@ -183,7 +183,7 @@ int LuaPerlinNoiseMap::l_get2dMap(lua_State *L)
}


int LuaPerlinNoiseMap::l_get2dMap_flat(lua_State *L)
int LuaPerlinNoiseMap::l_get_2d_map_flat(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

@@ -209,7 +209,7 @@ int LuaPerlinNoiseMap::l_get2dMap_flat(lua_State *L)
}


int LuaPerlinNoiseMap::l_get3dMap(lua_State *L)
int LuaPerlinNoiseMap::l_get_3d_map(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	size_t i = 0;
@@ -240,7 +240,7 @@ int LuaPerlinNoiseMap::l_get3dMap(lua_State *L)
}


int LuaPerlinNoiseMap::l_get3dMap_flat(lua_State *L)
int LuaPerlinNoiseMap::l_get_3d_map_flat(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

@@ -269,7 +269,7 @@ int LuaPerlinNoiseMap::l_get3dMap_flat(lua_State *L)
}


int LuaPerlinNoiseMap::l_calc2dMap(lua_State *L)
int LuaPerlinNoiseMap::l_calc_2d_map(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

@@ -282,7 +282,7 @@ int LuaPerlinNoiseMap::l_calc2dMap(lua_State *L)
	return 0;
}

int LuaPerlinNoiseMap::l_calc3dMap(lua_State *L)
int LuaPerlinNoiseMap::l_calc_3d_map(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

@@ -299,7 +299,7 @@ int LuaPerlinNoiseMap::l_calc3dMap(lua_State *L)
}


int LuaPerlinNoiseMap::l_getMapSlice(lua_State *L)
int LuaPerlinNoiseMap::l_get_map_slice(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

@@ -389,13 +389,13 @@ void LuaPerlinNoiseMap::Register(lua_State *L)

const char LuaPerlinNoiseMap::className[] = "PerlinNoiseMap";
const luaL_Reg LuaPerlinNoiseMap::methods[] = {
	luamethod(LuaPerlinNoiseMap, get2dMap),
	luamethod(LuaPerlinNoiseMap, get2dMap_flat),
	luamethod(LuaPerlinNoiseMap, calc2dMap),
	luamethod(LuaPerlinNoiseMap, get3dMap),
	luamethod(LuaPerlinNoiseMap, get3dMap_flat),
	luamethod(LuaPerlinNoiseMap, calc3dMap),
	luamethod(LuaPerlinNoiseMap, getMapSlice),
	luamethod_aliased(LuaPerlinNoiseMap, get_2d_map,      get2dMap),
	luamethod_aliased(LuaPerlinNoiseMap, get_2d_map_flat, get2dMap_flat),
	luamethod_aliased(LuaPerlinNoiseMap, calc_2d_map,     calc2dMap),
	luamethod_aliased(LuaPerlinNoiseMap, get_3d_map,      get3dMap),
	luamethod_aliased(LuaPerlinNoiseMap, get_3d_map_flat, get3dMap_flat),
	luamethod_aliased(LuaPerlinNoiseMap, calc_3d_map,     calc3dMap),
	luamethod_aliased(LuaPerlinNoiseMap, get_map_slice,   getMapSlice),
	{0,0}
};

src/script/lua_api/l_noise.h

@@ -38,8 +38,8 @@ class LuaPerlinNoise : public ModApiBase
	// garbage collector
	static int gc_object(lua_State *L);

	static int l_get2d(lua_State *L);
	static int l_get3d(lua_State *L);
	static int l_get_2d(lua_State *L);
	static int l_get_3d(lua_State *L);

public:
	LuaPerlinNoise(NoiseParams *params);
@@ -70,14 +70,14 @@ class LuaPerlinNoiseMap : public ModApiBase
	// garbage collector
	static int gc_object(lua_State *L);

	static int l_get2dMap(lua_State *L);
	static int l_get2dMap_flat(lua_State *L);
	static int l_get3dMap(lua_State *L);
	static int l_get3dMap_flat(lua_State *L);
	static int l_get_2d_map(lua_State *L);
	static int l_get_2d_map_flat(lua_State *L);
	static int l_get_3d_map(lua_State *L);
	static int l_get_3d_map_flat(lua_State *L);

	static int l_calc2dMap(lua_State *L);
	static int l_calc3dMap(lua_State *L);
	static int l_getMapSlice(lua_State *L);
	static int l_calc_2d_map(lua_State *L);
	static int l_calc_3d_map(lua_State *L);
	static int l_get_map_slice(lua_State *L);

public:
	LuaPerlinNoiseMap(NoiseParams *np, s32 seed, v3s16 size);