ml
31 lines
778 B
Go
31 lines
778 B
Go
package cmd
|
|
|
|
import "github.com/inkyblackness/hacked/ss1/world"
|
|
|
|
// List is a sequence of commands, which are executed as one step.
|
|
type List []Command
|
|
|
|
// Do performs the entries in the list in ascending order.
|
|
// If an entry returns an error, the iteration is aborted and that error is returned.
|
|
func (list List) Do(modder world.Modder) error {
|
|
for _, entry := range list {
|
|
err := entry.Do(modder)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// Undo performs the entries in the list in descending order.
|
|
// If an entry returns an error, the iteration is aborted and that error is returned.
|
|
func (list List) Undo(modder world.Modder) error {
|
|
for i := len(list) - 1; i >= 0; i-- {
|
|
err := list[i].Undo(modder)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|