new()

///@desc Creates an instance on a layer with varying sets of arguments
///
///@param [x]
///@param [y]
///@param [layer]
///@param object_index

switch (argument_count) {
    case 1:
        return instance_create_layer(0, 0, layer, argument[0])

    case 2:
        return instance_create_layer(0, 0, argument[0], argument[1])

    case 3:
        return instance_create_layer(argument[0], argument[1], layer, argument[2])

    case 4:
        return instance_create_layer(argument[0], argument[1], argument[2], argument[3])

    default:
        show_error("Wrong number of arguments to 'new()' script", true)
}