C++ (Cpp) BiomeManager::getByName Examples

Example #1

File: l_mapgen.cpp Project: DarkDracoon/minetest

// get_biome_id(biomename)
// returns the biome id used in biomemap
int ModApiMapgen::l_get_biome_id(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

	const char *biome_str = lua_tostring(L, 1);
	if (!biome_str)
		return 0;

	BiomeManager *bmgr = getServer(L)->getEmergeManager()->biomemgr;

	if (!bmgr)
		return 0;

	Biome *biome = (Biome *)bmgr->getByName(biome_str);

	if (!biome || biome->index == OBJDEF_INVALID_INDEX)
		return 0;

	lua_pushinteger(L, biome->index);

	return 1;
}

Example #2

File: l_mapgen.cpp Project: AnnXGame/Minetest

// register_decoration({lots of stuff})
int ModApiMapgen::l_register_decoration(lua_State *L)
{
	int index = 1;
	luaL_checktype(L, index, LUA_TTABLE);

	INodeDefManager *ndef      = getServer(L)->getNodeDefManager();
	DecorationManager *decomgr = getServer(L)->getEmergeManager()->decomgr;
	BiomeManager *biomemgr     = getServer(L)->getEmergeManager()->biomemgr;

	enum DecorationType decotype = (DecorationType)getenumfield(L, index,
				"deco_type", es_DecorationType, -1);

	Decoration *deco = decomgr->create(decotype);
	if (!deco) {
		errorstream << "register_decoration: decoration placement type "
			<< decotype << " not implemented";
		return 0;
	}

	deco->name       = getstringfield_default(L, index, "name", "");
	deco->fill_ratio = getfloatfield_default(L, index, "fill_ratio", 0.02);
	deco->y_min      = getintfield_default(L, index, "y_min", -31000);
	deco->y_max      = getintfield_default(L, index, "y_max", 31000);
	deco->sidelen    = getintfield_default(L, index, "sidelen", 8);
	if (deco->sidelen <= 0) {
		errorstream << "register_decoration: sidelen must be "
			"greater than 0" << std::endl;
		delete deco;
		return 0;
	}

	NodeResolveInfo *nri = new NodeResolveInfo(deco);

	//// Get node name(s) to place decoration on
	std::vector<const char *> place_on_names;
	getstringlistfield(L, index, "place_on", place_on_names);
	nri->nodelistinfo.push_back(NodeListInfo(place_on_names.size()));
	for (size_t i = 0; i != place_on_names.size(); i++)
		nri->nodenames.push_back(place_on_names[i]);

	getflagsfield(L, index, "flags", flagdesc_deco, &deco->flags, NULL);

	//// Get NoiseParams to define how decoration is placed
	lua_getfield(L, index, "noise_params");
	if (read_noiseparams(L, -1, &deco->np))
		deco->flags |= DECO_USE_NOISE;
	lua_pop(L, 1);

	//// Get biomes associated with this decoration (if any)
	std::vector<const char *> biome_list;
	getstringlistfield(L, index, "biomes", biome_list);
	for (size_t i = 0; i != biome_list.size(); i++) {
		Biome *b = (Biome *)biomemgr->getByName(biome_list[i]);
		if (!b)
			continue;

		deco->biomes.insert(b->id);
	}

	//// Handle decoration type-specific parameters
	bool success = false;
	switch (decotype) {
		case DECO_SIMPLE:
			success = regDecoSimple(L, nri, (DecoSimple *)deco);
			break;
		case DECO_SCHEMATIC:
			success = regDecoSchematic(L, ndef, (DecoSchematic *)deco);
			break;
		case DECO_LSYSTEM:
			break;
	}

	ndef->pendNodeResolve(nri);

	if (!success) {
		delete deco;
		return 0;
	}

	u32 id = decomgr->add(deco);
	if (id == (u32)-1) {
		delete deco;
		return 0;
	}

	verbosestream << "register_decoration: " << deco->name << std::endl;

	lua_pushinteger(L, id);
	return 1;
}