103 lines
2.0 KiB
Go
103 lines
2.0 KiB
Go
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package doodle
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import (
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"errors"
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"fmt"
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)
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// Command is a parsed shell command.
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type Command struct {
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Raw string // The complete raw command the user typed.
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Command string // The first word of their command.
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Args []string // The shell-args array of parameters.
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ArgsLiteral string // The args portion of the command literally.
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}
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// Run the command.
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func (c Command) Run(d *Doodle) error {
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if len(c.Raw) == 0 {
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return nil
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}
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switch c.Command {
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case "new":
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return c.New(d)
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case "save":
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return c.Save(d)
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case "edit":
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return c.Edit(d)
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case "play":
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return c.Play(d)
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case "exit":
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case "quit":
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return c.Quit()
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default:
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return c.Default()
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}
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return nil
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}
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// New opens a new map in the editor mode.
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func (c Command) New(d *Doodle) error {
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d.shell.Write("Starting a new map")
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d.NewMap()
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return nil
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}
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// Save the current map to disk.
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func (c Command) Save(d *Doodle) error {
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if scene, ok := d.scene.(*EditorScene); ok {
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filename := ""
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if len(c.Args) > 0 {
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filename = c.Args[0]
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} else if scene.filename != "" {
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filename = scene.filename
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} else {
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return errors.New("usage: save <filename.json>")
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}
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d.shell.Write("Saving to file: " + filename)
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scene.SaveLevel(filename)
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} else {
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return errors.New("save: only available in Edit Mode")
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}
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return nil
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}
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// Edit a map from disk.
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func (c Command) Edit(d *Doodle) error {
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if len(c.Args) == 0 {
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return errors.New("Usage: edit <file name>")
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}
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filename := c.Args[0]
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d.shell.Write("Editing level: " + filename)
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d.EditLevel(filename)
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return nil
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}
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// Play a map.
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func (c Command) Play(d *Doodle) error {
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if len(c.Args) == 0 {
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return errors.New("Usage: play <file name>")
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}
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filename := c.Args[0]
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d.shell.Write("Playing level: " + filename)
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d.PlayLevel(filename)
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return nil
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}
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// Quit the command line shell.
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func (c Command) Quit() error {
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return nil
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}
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// Default command.
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func (c Command) Default() error {
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return fmt.Errorf("%s: command not found. Try `help` for help",
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c.Command,
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)
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}
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