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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#pragma once
#include "irr_v3d.h"
#include "lua_api/l_base.h"
#include "noise.h"
/*
LuaPerlinNoise
*/
class LuaPerlinNoise : public ModApiBase
{
private:
NoiseParams np;
static const char className[];
static luaL_Reg methods[];
// Exported functions
// garbage collector
static int gc_object(lua_State *L);
static int l_get_2d(lua_State *L);
static int l_get_3d(lua_State *L);
public:
LuaPerlinNoise(const NoiseParams *params);
~LuaPerlinNoise() = default;
// LuaPerlinNoise(seed, octaves, persistence, scale)
// Creates an LuaPerlinNoise and leaves it on top of stack
static int create_object(lua_State *L);
static LuaPerlinNoise *checkobject(lua_State *L, int narg);
static void *packIn(lua_State *L, int idx);
static void packOut(lua_State *L, void *ptr);
static void Register(lua_State *L);
};
/*
LuaPerlinNoiseMap
*/
class LuaPerlinNoiseMap : public ModApiBase
{
Noise *noise;
static const char className[];
static luaL_Reg methods[];
// Exported functions
// garbage collector
static int gc_object(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_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(const NoiseParams *np, s32 seed, v3s16 size);
~LuaPerlinNoiseMap();
inline bool is3D() const { return noise->sz > 1; }
// LuaPerlinNoiseMap(np, size)
// Creates an LuaPerlinNoiseMap and leaves it on top of stack
static int create_object(lua_State *L);
static LuaPerlinNoiseMap *checkobject(lua_State *L, int narg);
static void *packIn(lua_State *L, int idx);
static void packOut(lua_State *L, void *ptr);
static void Register(lua_State *L);
};
/*
LuaPseudoRandom
*/
class LuaPseudoRandom : public ModApiBase
{
private:
PseudoRandom m_pseudo;
static const char className[];
static const luaL_Reg methods[];
// Exported functions
// garbage collector
static int gc_object(lua_State *L);
// next(self, min=0, max=32767) -> get next value
static int l_next(lua_State *L);
public:
LuaPseudoRandom(s32 seed) : m_pseudo(seed) {}
// LuaPseudoRandom(seed)
// Creates an LuaPseudoRandom and leaves it on top of stack
static int create_object(lua_State *L);
static LuaPseudoRandom *checkobject(lua_State *L, int narg);
static void Register(lua_State *L);
};
/*
LuaPcgRandom
*/
class LuaPcgRandom : public ModApiBase
{
private:
PcgRandom m_rnd;
static const char className[];
static const luaL_Reg methods[];
// Exported functions
// garbage collector
static int gc_object(lua_State *L);
// next(self, min=-2147483648, max=2147483647) -> get next value
static int l_next(lua_State *L);
// rand_normal_dist(self, min=-2147483648, max=2147483647, num_trials=6) ->
// get next normally distributed random value
static int l_rand_normal_dist(lua_State *L);
public:
LuaPcgRandom(u64 seed) : m_rnd(seed) {}
LuaPcgRandom(u64 seed, u64 seq) : m_rnd(seed, seq) {}
// LuaPcgRandom(seed)
// Creates an LuaPcgRandom and leaves it on top of stack
static int create_object(lua_State *L);
static LuaPcgRandom *checkobject(lua_State *L, int narg);
static void Register(lua_State *L);
};
/*
LuaSecureRandom
*/
class LuaSecureRandom : public ModApiBase
{
private:
static const size_t RAND_BUF_SIZE = 2048;
static const char className[];
static const luaL_Reg methods[];
u32 m_rand_idx;
char m_rand_buf[RAND_BUF_SIZE];
// Exported functions
// garbage collector
static int gc_object(lua_State *L);
// next_bytes(self, count) -> get count many bytes
static int l_next_bytes(lua_State *L);
public:
bool fillRandBuf();
// LuaSecureRandom()
// Creates an LuaSecureRandom and leaves it on top of stack
static int create_object(lua_State *L);
static LuaSecureRandom *checkobject(lua_State *L, int narg);
static void Register(lua_State *L);
};
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