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Add support for the PCG32 PRNG algo (and associated script APIs)

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This commit is contained in:
kwolekr 2015-03-22 00:01:46 -04:00
parent 7679396ebb
commit 3993093f51
10 changed files with 415 additions and 179 deletions
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50
src/script/lua_api/l_noise.h
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@ -64,6 +64,9 @@ class LuaPerlinNoiseMap : public ModApiBase {
static const char className[];
static const luaL_reg methods[];
// Exported functions
// garbage collector
static int gc_object(lua_State *L);
static int l_get2dMap(lua_State *L);
@ -104,18 +107,51 @@ private:
static int l_next(lua_State *L);
public:
LuaPseudoRandom(int seed);
~LuaPseudoRandom();
const PseudoRandom& getItem() const;
PseudoRandom& getItem();
LuaPseudoRandom(int 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 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);
};