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Added love.math.noise(x, [y, z, w]). Calculates the 1D, 2D, 3D or 4D Simplex noise value at a particular coordinate

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Alex Szpakowski
2013-05-01 18:26:40 -07:00
parent 1edfbb766f
commit 9ccf013570
6 changed files with 618 additions and 0 deletions
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src/modules/math/wrap_Math.cpp
+37
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@@ -148,6 +148,42 @@ int w_triangulate(lua_State *L)
return 1;
}
int w_noise(lua_State *L)
{
float w, x, y, z;
float val;
switch (lua_gettop(L))
{
case 1:
x = luaL_checknumber(L, 1);
val = Math::instance.simplexNoise1(x);
break;
case 2:
x = luaL_checknumber(L, 1);
y = luaL_checknumber(L, 2);
val = Math::instance.simplexNoise2(x, y);
break;
case 3:
x = luaL_checknumber(L, 1);
y = luaL_checknumber(L, 2);
z = luaL_checknumber(L, 3);
val = Math::instance.simplexNoise3(x, y, z);
break;
case 4:
default:
x = luaL_checknumber(L, 1);
y = luaL_checknumber(L, 2);
z = luaL_checknumber(L, 3);
w = luaL_checknumber(L, 4);
val = Math::instance.simplexNoise4(x, y, z, w);
break;
}
lua_pushnumber(L, (lua_Number) val);
return 1;
}
// List of functions to wrap.
static const luaL_Reg functions[] =
{
@@ -156,6 +192,7 @@ static const luaL_Reg functions[] =
{ "randomnormal", w_randomnormal },
{ "newRandomGenerator", w_newRandomGenerator },
{ "triangulate", w_triangulate },
{ "noise", w_noise },
{ 0, 0 }
};