Function unicast

src/world/script_world.cpp:174–203

	///
	void unicast(ScriptWorld &sw
		, const char *function_name
		, ScriptId script_inst
		, const ArgType::Enum *arg_types
		, const Arg *args
		, u32 num_args
		)
	{
		if (sw._disable_callbacks)
			return;

		LuaStack stack(sw._lua_environment->L);

		lua_rawgeti(stack.L, LUA_REGISTRYINDEX, sw._script[sw._data[script_inst.i].script_i].module_ref);
		lua_getfield(stack.L, -1, function_name);

		if (lua_isnil(stack.L, -1)) {
			stack.pop(2);
			return;
		}

		stack.push_args(arg_types, args, num_args);

		int status = sw._lua_environment->call(num_args, 0);
		if (status != LUA_OK) {
			report(stack.L, status);
			device()->pause();
		}
		stack.pop(1);
	}

	void units_with_script(ScriptWorld &sw, Array<Index> &index, const UnitId *units, u32 num)
	{