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Add support for NoiseParams in minetest.get_perlin() and add docs on NoiseParams to lua_api.txt

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This commit is contained in:
kwolekr 2014-12-12 02:02:26 -05:00
parent c151099b79
commit 2b8180a417
4 changed files with 100 additions and 33 deletions
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18
src/script/lua_api/l_env.cpp
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@ -590,12 +590,20 @@ int ModApiEnvMod::l_get_perlin(lua_State *L)
{
GET_ENV_PTR;
int seeddiff = luaL_checkint(L, 1);
int octaves = luaL_checkint(L, 2);
float persistence = luaL_checknumber(L, 3);
float scale = luaL_checknumber(L, 4);
NoiseParams params;
LuaPerlinNoise *n = new LuaPerlinNoise(seeddiff + int(env->getServerMap().getSeed()), octaves, persistence, scale);
if (lua_istable(L, 1)) {
read_noiseparams(L, 1, &params);
} else {
params.seed = luaL_checkint(L, 1);
params.octaves = luaL_checkint(L, 2);
params.persist = luaL_checknumber(L, 3);
params.spread = v3f(1, 1, 1) * luaL_checknumber(L, 4);
}
params.seed += (int)env->getServerMap().getSeed();
LuaPerlinNoise *n = new LuaPerlinNoise(&params);
*(void **)(lua_newuserdata(L, sizeof(void *))) = n;
luaL_getmetatable(L, "PerlinNoise");
lua_setmetatable(L, -2);