doodle/pkg/commands.go
Noah Petherbridge 4dd1bebc5f Add MenuScene with New Level UI
* Debug mode: no longer enables the DebugOverlay (F3) by default, but
  does now insert the current FPS counter into the window title bar.
* ui.Frame: set a default "mostly transparent" BG color so the frame
  background doesn't render as white.
* Add the MenuScene which will house the game's main menus.
* The "New Level" menu is first to be added.
  * UI lets you pick Page Type and Wallpaper using radio buttons.
  * Page Type: Unbounded, Bounded (default), No Negative Space, Bordered
  * Fix bugs in uix.Canvas to fully support all these page types.
2019-06-25 15:01:37 -07:00

255 lines
5.5 KiB
Go

package doodle
import (
"errors"
"fmt"
"strconv"
"git.kirsle.net/apps/doodle/pkg/enum"
"github.com/robertkrimen/otto"
)
// Command is a parsed shell command.
type Command struct {
Raw string // The complete raw command the user typed.
Command string // The first word of their command.
Args []string // The shell-args array of parameters.
ArgsLiteral string // The args portion of the command literally.
}
// Run the command.
func (c Command) Run(d *Doodle) error {
if len(c.Raw) == 0 {
return nil
}
// Cheat codes
if c.Raw == "unleash the beast" {
if fpsDoNotCap {
d.Flash("Reset frame rate throttle to factory default FPS")
} else {
d.Flash("Unleashing as many frames as we can render!")
}
fpsDoNotCap = !fpsDoNotCap
return nil
} else if c.Raw == "don't edit and drive" {
if playScene, ok := d.Scene.(*PlayScene); ok {
playScene.drawing.Editable = true
d.Flash("Level canvas is now editable. Don't edit and drive!")
} else {
d.Flash("Use this cheat in Play Mode to make the level canvas editable.")
}
return nil
} else if c.Raw == "scroll scroll scroll your boat" {
if playScene, ok := d.Scene.(*PlayScene); ok {
playScene.drawing.Scrollable = true
d.Flash("Level canvas is now scrollable with the arrow keys.")
} else {
d.Flash("Use this cheat in Play Mode to make the level scrollable.")
}
return nil
}
switch c.Command {
case "echo":
d.Flash(c.ArgsLiteral)
return nil
case "new":
return c.New(d)
case "save":
return c.Save(d)
case "edit":
return c.Edit(d)
case "play":
return c.Play(d)
case "close":
return c.Close(d)
case "exit":
case "quit":
return c.Quit()
case "help":
return c.Help(d)
case "reload":
d.Goto(d.Scene)
return nil
case "guitest":
d.Goto(&GUITestScene{})
return nil
case "eval":
case "$":
out, err := c.RunScript(d, c.ArgsLiteral)
d.Flash("%+v", out)
return err
case "repl":
d.shell.Repl = true
d.shell.Text = "$ "
case "boolProp":
return c.BoolProp(d)
default:
return c.Default()
}
return nil
}
// New opens a new map in the editor mode.
func (c Command) New(d *Doodle) error {
d.GotoNewMenu()
return nil
}
// Close returns to the Main Scene.
func (c Command) Close(d *Doodle) error {
main := &MainScene{}
d.Goto(main)
return nil
}
// Help prints the help info.
func (c Command) Help(d *Doodle) error {
if len(c.Args) == 0 {
d.Flash("Available commands: new save edit play quit echo clear help")
d.Flash("Type `help` and then the command, like: `help edit`")
return nil
}
switch c.Args[0] {
case "new":
d.Flash("Usage: new")
d.Flash("Create a new drawing in Edit Mode")
case "save":
d.Flash("Usage: save [filename.json]")
d.Flash("Save the map to disk (in Edit Mode only)")
case "edit":
d.Flash("Usage: edit <filename.json>")
d.Flash("Open a file on disk in Edit Mode")
case "play":
d.Flash("Usage: play <filename.json>")
d.Flash("Open a map from disk in Play Mode")
case "echo":
d.Flash("Usage: echo <message>")
d.Flash("Flash a message back to the console")
case "quit":
case "exit":
d.Flash("Usage: quit")
d.Flash("Closes the dev console")
case "clear":
d.Flash("Usage: clear")
d.Flash("Clears the terminal output history")
case "help":
d.Flash("Usage: help <command>")
default:
d.Flash("Unknown help topic.")
}
return nil
}
// Save the current map to disk.
func (c Command) Save(d *Doodle) error {
if scene, ok := d.Scene.(*EditorScene); ok {
filename := ""
if len(c.Args) > 0 {
filename = c.Args[0]
} else if scene.filename != "" {
filename = scene.filename
} else {
return errors.New("usage: save <filename>")
}
switch scene.DrawingType {
case enum.LevelDrawing:
d.shell.Write("Saving Level: " + filename)
scene.SaveLevel(filename)
case enum.DoodadDrawing:
d.shell.Write("Saving Doodad: " + filename)
scene.SaveDoodad(filename)
}
} else {
return errors.New("save: only available in Edit Mode")
}
return nil
}
// Edit a map from disk.
func (c Command) Edit(d *Doodle) error {
if len(c.Args) == 0 {
return errors.New("Usage: edit <file name>")
}
filename := c.Args[0]
d.shell.Write("Editing file: " + filename)
return d.EditFile(filename)
}
// Play a map.
func (c Command) Play(d *Doodle) error {
if len(c.Args) == 0 {
return errors.New("Usage: play <file name>")
}
filename := c.Args[0]
d.shell.Write("Playing level: " + filename)
d.PlayLevel(filename)
return nil
}
// Quit the command line shell.
func (c Command) Quit() error {
return nil
}
// BoolProp command sets available boolean variables.
func (c Command) BoolProp(d *Doodle) error {
if len(c.Args) != 2 {
return errors.New("Usage: boolProp <name> <true or false>")
}
var (
name = c.Args[0]
value = c.Args[1]
truthy = value[0] == 't' || value[0] == 'T' || value[0] == '1'
ok = true
)
switch name {
case "Debug":
case "D":
d.Debug = truthy
case "DebugOverlay":
case "DO":
DebugOverlay = truthy
case "DebugCollision":
case "DC":
DebugCollision = truthy
default:
ok = false
}
if ok {
d.Flash("Set boolProp %s=%s", name, strconv.FormatBool(truthy))
} else {
d.Flash("Unknown boolProp name %s", name)
}
return nil
}
// RunScript evaluates some JavaScript code safely.
func (c Command) RunScript(d *Doodle, code interface{}) (otto.Value, error) {
defer func() {
if err := recover(); err != nil {
d.Flash("Panic: %s", err)
}
}()
out, err := d.shell.js.Run(code)
return out, err
}
// Default command.
func (c Command) Default() error {
return fmt.Errorf("%s: command not found. Try `help` for help",
c.Command,
)
}