Implement Developer Console with Initial Commands
Implements the dev console in-game with various commands to start out
with.
Press the Enter key to show or hide the console. Commands supported:
new
Start a new map in Edit Mode.
save [filename.json]
Save the current map to disk. Filename is required unless you
have saved recently.
edit filename.json
Open a map from disk in Edit Mode.
play filename.json
Play a map from disk in Play Mode.
chunks
parent
30be42c343
commit
9356502a50
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@ -0,0 +1,17 @@
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package balance
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import "git.kirsle.net/apps/doodle/render"
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// Shell related variables.
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var (
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// TODO: why not renders transparent
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ShellBackgroundColor = render.Color{0, 10, 20, 128}
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ShellForegroundColor = render.White
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ShellPadding int32 = 8
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ShellFontSize = 14
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ShellCursorBlinkRate uint64 = 20
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ShellHistoryLineCount = 8
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// Ticks that a flashed message persists for.
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FlashTTL uint64 = 200
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)
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@ -0,0 +1,102 @@
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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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58
doodle.go
58
doodle.go
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@ -4,7 +4,6 @@ import (
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"fmt"
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"time"
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"git.kirsle.net/apps/doodle/events"
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"git.kirsle.net/apps/doodle/render"
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"github.com/kirsle/golog"
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)
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@ -28,10 +27,12 @@ type Doodle struct {
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startTime time.Time
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running bool
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ticks uint64
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events *events.State
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width int32
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height int32
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// Command line shell options.
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shell Shell
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scene Scene
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}
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@ -41,11 +42,11 @@ func New(debug bool, engine render.Engine) *Doodle {
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Debug: debug,
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Engine: engine,
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startTime: time.Now(),
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events: events.New(),
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running: true,
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width: 800,
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height: 600,
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}
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d.shell = NewShell(d)
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if !debug {
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log.Config.Level = golog.InfoLevel
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@ -68,6 +69,8 @@ func (d *Doodle) Run() error {
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log.Info("Enter Main Loop")
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for d.running {
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d.Engine.Clear(render.White)
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start := time.Now() // Record how long this frame took.
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d.ticks++
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@ -79,24 +82,43 @@ func (d *Doodle) Run() error {
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break
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}
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// Global event handlers.
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if ev.EscapeKey.Pressed() {
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log.Error("Escape key pressed, shutting down")
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d.running = false
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break
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// Command line shell.
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if d.shell.Open {
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} else if ev.EnterKey.Read() {
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log.Debug("Shell: opening shell")
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d.shell.Open = true
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} else {
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// Global event handlers.
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if ev.EscapeKey.Read() {
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log.Error("Escape key pressed, shutting down")
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d.running = false
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break
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}
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// Run the scene's logic.
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err = d.scene.Loop(d, ev)
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if err != nil {
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return err
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}
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}
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// Run the scene's logic.
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err = d.scene.Loop(d, ev)
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// Draw the scene.
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d.scene.Draw(d)
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// Draw the shell.
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err = d.shell.Draw(d, ev)
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if err != nil {
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return err
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log.Error("shell error: %s", err)
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d.running = false
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break
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}
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// Draw the debug overlay over all scenes.
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d.DrawDebugOverlay()
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// Render the pixels to the screen.
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err = d.Engine.Draw()
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err = d.Engine.Present()
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if err != nil {
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log.Error("draw error: %s", err)
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d.running = false
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@ -114,12 +136,22 @@ func (d *Doodle) Run() error {
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// Track how long this frame took to measure FPS over time.
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d.TrackFPS(delay)
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// Consume any lingering key sym.
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ev.KeyName.Read()
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}
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log.Warn("Main Loop Exited! Shutting down...")
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return nil
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}
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// NewMap loads a new map in Edit Mode.
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func (d *Doodle) NewMap() {
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log.Info("Starting a new map")
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scene := &EditorScene{}
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d.Goto(scene)
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}
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// EditLevel loads a map from JSON into the EditorScene.
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func (d *Doodle) EditLevel(filename string) error {
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log.Info("Loading level from file: %s", filename)
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return nil
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}
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// TODO: not a global
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// Pixel TODO: not a global
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type Pixel struct {
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start bool
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x int32
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@ -19,6 +19,7 @@ type EditorScene struct {
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// History of all the pixels placed by the user.
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pixelHistory []Pixel
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canvas Grid
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filename string // Last saved filename.
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// Canvas size
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width int32
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@ -49,7 +50,6 @@ func (s *EditorScene) Loop(d *Doodle, ev *events.State) error {
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if ev.ScreenshotKey.Pressed() {
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log.Info("Taking a screenshot")
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s.Screenshot()
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s.SaveLevel()
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}
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// Clear the canvas and fill it with white.
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}
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}
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return nil
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}
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// Draw the current frame.
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func (s *EditorScene) Draw(d *Doodle) error {
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for i, pixel := range s.pixelHistory {
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if !pixel.start && i > 0 {
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prev := s.pixelHistory[i-1]
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// LoadLevel loads a level from disk.
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func (s *EditorScene) LoadLevel(filename string) error {
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s.filename = filename
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s.pixelHistory = []Pixel{}
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s.canvas = Grid{}
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}
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// SaveLevel saves the level to disk.
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func (s *EditorScene) SaveLevel() {
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func (s *EditorScene) SaveLevel(filename string) {
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s.filename = filename
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m := level.Level{
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Version: 1,
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Title: "Alpha",
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return
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}
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filename := fmt.Sprintf("./map-%s.json",
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time.Now().Format("2006-01-02T15-04-05"),
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)
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err = ioutil.WriteFile(filename, json, 0644)
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if err != nil {
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log.Error("Create map file error: %s", err)
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// Package events manages mouse and keyboard SDL events for Doodle.
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package events
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import "strings"
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// State keeps track of event states.
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type State struct {
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// Mouse buttons.
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// Screenshot key.
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ScreenshotKey *BoolTick
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EscapeKey *BoolTick
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EnterKey *BoolTick
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ShiftActive *BoolTick
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KeyName *StringTick
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Up *BoolTick
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Left *BoolTick
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Right *BoolTick
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@ -27,6 +32,9 @@ func New() *State {
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Button2: &BoolTick{},
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ScreenshotKey: &BoolTick{},
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EscapeKey: &BoolTick{},
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EnterKey: &BoolTick{},
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ShiftActive: &BoolTick{},
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KeyName: &StringTick{},
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Up: &BoolTick{},
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Left: &BoolTick{},
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Right: &BoolTick{},
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CursorY: &Int32Tick{},
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}
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}
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// ReadKey returns the normalized key symbol being pressed,
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// taking the Shift key into account. QWERTY keyboard only, probably.
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func (ev *State) ReadKey() string {
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if key := ev.KeyName.Read(); key != "" {
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if ev.ShiftActive.Pressed() {
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if symbol, ok := shiftMap[key]; ok {
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return symbol
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}
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return strings.ToUpper(key)
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}
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return key
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}
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return ""
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}
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// shiftMap maps keys to their Shift versions.
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var shiftMap = map[string]string{
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"`": "~",
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"1": "!",
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"2": "@",
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"3": "#",
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"4": "$",
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"5": "%",
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"6": "^",
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"7": "&",
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"8": "*",
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"9": "(",
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"0": ")",
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"-": "_",
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"=": "+",
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"[": "{",
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"]": "}",
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`\`: "|",
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";": ":",
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`'`: `"`,
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",": "<",
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".": ">",
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"/": "?",
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}
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@ -12,6 +12,12 @@ type Int32Tick struct {
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Last int32
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}
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// StringTick manages strings between this frame and the previous.
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type StringTick struct {
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Now string
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Last string
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}
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// Push a bool state, copying the current Now value to Last.
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func (bs *BoolTick) Push(v bool) {
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bs.Last = bs.Now
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@ -23,8 +29,28 @@ func (bs *BoolTick) Pressed() bool {
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return bs.Now && !bs.Last
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}
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// Read a bool state, resetting its value to false.
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func (bs *BoolTick) Read() bool {
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now := bs.Now
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bs.Push(false)
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return now
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}
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// Push an int32 state, copying the current Now value to Last.
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func (is *Int32Tick) Push(v int32) {
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is.Last = is.Now
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is.Now = v
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}
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// Push a string state.
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func (s *StringTick) Push(v string) {
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s.Last = s.Now
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s.Now = v
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}
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// Read a string state, resetting its value.
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func (s *StringTick) Read() string {
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now := s.Now
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s.Push("")
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return now
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}
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21
fps.go
21
fps.go
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@ -2,7 +2,6 @@ package doodle
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import (
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"fmt"
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"time"
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"git.kirsle.net/apps/doodle/render"
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)
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@ -26,11 +25,9 @@ func (d *Doodle) DrawDebugOverlay() {
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}
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label := fmt.Sprintf(
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"FPS: %d (%dms) (%d,%d) S:%s F12=screenshot",
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"FPS: %d (%dms) S:%s F12=screenshot",
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fpsCurrent,
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fpsSkipped,
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d.events.CursorX.Now,
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d.events.CursorY.Now,
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d.scene.Name(),
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)
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@ -42,11 +39,9 @@ func (d *Doodle) DrawDebugOverlay() {
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Stroke: DebugTextStroke,
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Shadow: DebugTextShadow,
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},
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render.Rect{
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render.Point{
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X: DebugTextPadding,
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Y: DebugTextPadding,
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W: d.width,
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H: d.height,
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},
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)
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if err != nil {
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@ -65,12 +60,12 @@ func (d *Doodle) TrackFPS(skipped uint32) {
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}
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if fpsLastTime < fpsCurrentTicks-fpsInterval {
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log.Debug("Uptime: %s FPS: %d deltaTicks: %d skipped: %dms",
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time.Now().Sub(d.startTime),
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fpsCurrent,
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fpsCurrentTicks-fpsLastTime,
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skipped,
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)
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// log.Debug("Uptime: %s FPS: %d deltaTicks: %d skipped: %dms",
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// time.Now().Sub(d.startTime),
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// fpsCurrent,
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// fpsCurrentTicks-fpsLastTime,
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// skipped,
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// )
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fpsLastTime = fpsCurrentTicks
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fpsCurrent = fpsFrames
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@ -42,9 +42,7 @@ func (s *PlayScene) Setup(d *Doodle) error {
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// Loop the editor scene.
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func (s *PlayScene) Loop(d *Doodle, ev *events.State) error {
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s.movePlayer(ev)
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// Apply gravity.
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return s.Draw(d)
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return nil
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}
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// Draw the pixels on this frame.
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@ -57,7 +55,6 @@ func (s *PlayScene) Draw(d *Doodle) error {
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}
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// Draw our hero.
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log.Info("hero %s %+v", render.Magenta, render.Magenta)
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d.Engine.DrawRect(render.Magenta, render.Rect{s.x, s.y, 16, 16})
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return nil
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@ -15,15 +15,16 @@ type Engine interface {
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Poll() (*events.State, error)
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GetTicks() uint32
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// Draw presents the current state to the screen.
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Draw() error
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// Present presents the current state to the screen.
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Present() error
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// Clear the full canvas and set this color.
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Clear(Color)
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DrawPoint(Color, Point)
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DrawLine(Color, Point, Point)
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DrawRect(Color, Rect)
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DrawText(Text, Rect) error
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DrawBox(Color, Rect)
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DrawText(Text, Point) error
|
||||
|
||||
// Delay for a moment using the render engine's delay method,
|
||||
// implemented by sdl.Delay(uint32)
|
||||
|
|
|
|||
|
|
@ -42,3 +42,16 @@ func (r *Renderer) DrawRect(color render.Color, rect render.Rect) {
|
|||
H: rect.H,
|
||||
})
|
||||
}
|
||||
|
||||
// DrawBox draws a filled rectangle.
|
||||
func (r *Renderer) DrawBox(color render.Color, rect render.Rect) {
|
||||
if color != r.lastColor {
|
||||
r.renderer.SetDrawColor(color.Red, color.Green, color.Blue, color.Alpha)
|
||||
}
|
||||
r.renderer.FillRect(&sdl.Rect{
|
||||
X: rect.X,
|
||||
Y: rect.Y,
|
||||
W: rect.W,
|
||||
H: rect.H,
|
||||
})
|
||||
}
|
||||
|
|
|
|||
|
|
@ -8,6 +8,7 @@ var log *golog.Logger
|
|||
var (
|
||||
DebugMouseEvents = false
|
||||
DebugClickEvents = false
|
||||
DebugKeyEvents = false
|
||||
)
|
||||
|
||||
func init() {
|
||||
|
|
|
|||
|
|
@ -159,16 +159,23 @@ func (r *Renderer) Poll() (*events.State, error) {
|
|||
)
|
||||
}
|
||||
case *sdl.KeyboardEvent:
|
||||
log.Debug("[%d ms] tick:%d Keyboard type:%d sym:%c modifiers:%d state:%d repeat:%d\n",
|
||||
t.Timestamp, r.ticks, t.Type, t.Keysym.Sym, t.Keysym.Mod, t.State, t.Repeat,
|
||||
)
|
||||
if t.Repeat == 1 {
|
||||
continue
|
||||
if DebugKeyEvents {
|
||||
log.Debug("[%d ms] tick:%d Keyboard type:%d sym:%c modifiers:%d state:%d repeat:%d\n",
|
||||
t.Timestamp, r.ticks, t.Type, t.Keysym.Sym, t.Keysym.Mod, t.State, t.Repeat,
|
||||
)
|
||||
}
|
||||
|
||||
switch t.Keysym.Scancode {
|
||||
case sdl.SCANCODE_ESCAPE:
|
||||
if t.Repeat == 1 {
|
||||
continue
|
||||
}
|
||||
s.EscapeKey.Push(t.State == 1)
|
||||
case sdl.SCANCODE_RETURN:
|
||||
if t.Repeat == 1 {
|
||||
continue
|
||||
}
|
||||
s.EnterKey.Push(t.State == 1)
|
||||
case sdl.SCANCODE_F12:
|
||||
s.ScreenshotKey.Push(t.State == 1)
|
||||
case sdl.SCANCODE_UP:
|
||||
|
|
@ -179,6 +186,25 @@ func (r *Renderer) Poll() (*events.State, error) {
|
|||
s.Right.Push(t.State == 1)
|
||||
case sdl.SCANCODE_DOWN:
|
||||
s.Down.Push(t.State == 1)
|
||||
case sdl.SCANCODE_LSHIFT:
|
||||
case sdl.SCANCODE_RSHIFT:
|
||||
s.ShiftActive.Push(t.State == 1)
|
||||
continue
|
||||
case sdl.SCANCODE_LALT:
|
||||
case sdl.SCANCODE_RALT:
|
||||
case sdl.SCANCODE_LCTRL:
|
||||
case sdl.SCANCODE_RCTRL:
|
||||
continue
|
||||
case sdl.SCANCODE_BACKSPACE:
|
||||
// Make it a key event with "\b" as the sequence.
|
||||
if t.State == 1 || t.Repeat == 1 {
|
||||
s.KeyName.Push(`\b`)
|
||||
}
|
||||
default:
|
||||
// Push the string value of the key.
|
||||
if t.State == 1 {
|
||||
s.KeyName.Push(string(t.Keysym.Sym))
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -186,8 +212,8 @@ func (r *Renderer) Poll() (*events.State, error) {
|
|||
return s, nil
|
||||
}
|
||||
|
||||
// Draw a single frame.
|
||||
func (r *Renderer) Draw() error {
|
||||
// Present the current frame.
|
||||
func (r *Renderer) Present() error {
|
||||
r.renderer.Present()
|
||||
return nil
|
||||
}
|
||||
|
|
|
|||
|
|
@ -1,6 +1,9 @@
|
|||
package sdl
|
||||
|
||||
import (
|
||||
"strings"
|
||||
|
||||
"git.kirsle.net/apps/doodle/events"
|
||||
"git.kirsle.net/apps/doodle/render"
|
||||
"github.com/veandco/go-sdl2/sdl"
|
||||
"github.com/veandco/go-sdl2/ttf"
|
||||
|
|
@ -23,8 +26,22 @@ func LoadFont(size int) (*ttf.Font, error) {
|
|||
return font, nil
|
||||
}
|
||||
|
||||
// Keysym returns the current key pressed, taking into account the Shift
|
||||
// key modifier.
|
||||
func (r *Renderer) Keysym(ev *events.State) string {
|
||||
if key := ev.KeyName.Read(); key != "" {
|
||||
if ev.ShiftActive.Pressed() {
|
||||
if symbol, ok := shiftMap[key]; ok {
|
||||
return symbol
|
||||
}
|
||||
return strings.ToUpper(key)
|
||||
}
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
// DrawText draws text on the canvas.
|
||||
func (r *Renderer) DrawText(text render.Text, rect render.Rect) error {
|
||||
func (r *Renderer) DrawText(text render.Text, point render.Point) error {
|
||||
var (
|
||||
font *ttf.Font
|
||||
surface *sdl.Surface
|
||||
|
|
@ -48,8 +65,8 @@ func (r *Renderer) DrawText(text render.Text, rect render.Rect) error {
|
|||
defer tex.Destroy()
|
||||
|
||||
tmp := &sdl.Rect{
|
||||
X: rect.X + dx,
|
||||
Y: rect.Y + dy,
|
||||
X: point.X + dx,
|
||||
Y: point.Y + dy,
|
||||
W: surface.W,
|
||||
H: surface.H,
|
||||
}
|
||||
|
|
@ -79,3 +96,28 @@ func (r *Renderer) DrawText(text render.Text, rect render.Rect) error {
|
|||
|
||||
return err
|
||||
}
|
||||
|
||||
// shiftMap maps keys to their Shift versions.
|
||||
var shiftMap = map[string]string{
|
||||
"`": "~",
|
||||
"1": "!",
|
||||
"2": "@",
|
||||
"3": "#",
|
||||
"4": "$",
|
||||
"5": "%",
|
||||
"6": "^",
|
||||
"7": "&",
|
||||
"8": "*",
|
||||
"9": "(",
|
||||
"0": ")",
|
||||
"-": "_",
|
||||
"=": "+",
|
||||
"[": "{",
|
||||
"]": "}",
|
||||
`\`: "|",
|
||||
";": ":",
|
||||
`'`: `"`,
|
||||
",": "<",
|
||||
".": ">",
|
||||
"/": "?",
|
||||
}
|
||||
|
|
|
|||
6
scene.go
6
scene.go
|
|
@ -8,7 +8,13 @@ import "git.kirsle.net/apps/doodle/events"
|
|||
type Scene interface {
|
||||
Name() string
|
||||
Setup(*Doodle) error
|
||||
|
||||
// Loop should update the scene's state but not draw anything.
|
||||
Loop(*Doodle, *events.State) error
|
||||
|
||||
// Draw should use the scene's state to figure out what pixels need
|
||||
// to draw to the screen.
|
||||
Draw(*Doodle) error
|
||||
}
|
||||
|
||||
// Goto a scene. First it unloads the current scene.
|
||||
|
|
|
|||
|
|
@ -1,86 +0,0 @@
|
|||
package scene
|
||||
|
||||
import "git.kirsle.net/apps/doodle/events"
|
||||
|
||||
// Editor is the drawing mode of the game where the user is clicking and
|
||||
// dragging to draw pixels.
|
||||
type Editor struct{}
|
||||
|
||||
func (s *Editor) String() string {
|
||||
return "Editor"
|
||||
}
|
||||
|
||||
// Setup the scene.
|
||||
func (s *Editor) Setup() error {
|
||||
return nil
|
||||
}
|
||||
|
||||
// Loop the scene.
|
||||
func (s *Editor) Loop(ev *events.State) error {
|
||||
// Taking a screenshot?
|
||||
if ev.ScreenshotKey.Pressed() {
|
||||
log.Info("Taking a screenshot")
|
||||
d.Screenshot()
|
||||
d.SaveLevel()
|
||||
}
|
||||
|
||||
// Clear the canvas and fill it with white.
|
||||
d.renderer.SetDrawColor(255, 255, 255, 255)
|
||||
d.renderer.Clear()
|
||||
|
||||
// Clicking? Log all the pixels while doing so.
|
||||
if ev.Button1.Now {
|
||||
pixel := Pixel{
|
||||
start: ev.Button1.Pressed(),
|
||||
x: ev.CursorX.Now,
|
||||
y: ev.CursorY.Now,
|
||||
dx: ev.CursorX.Now,
|
||||
dy: ev.CursorY.Now,
|
||||
}
|
||||
|
||||
// Append unique new pixels.
|
||||
if len(pixelHistory) == 0 || pixelHistory[len(pixelHistory)-1] != pixel {
|
||||
// If not a start pixel, make the delta coord the previous one.
|
||||
if !pixel.start && len(pixelHistory) > 0 {
|
||||
prev := pixelHistory[len(pixelHistory)-1]
|
||||
pixel.dx = prev.x
|
||||
pixel.dy = prev.y
|
||||
}
|
||||
|
||||
pixelHistory = append(pixelHistory, pixel)
|
||||
|
||||
// Save in the pixel canvas map.
|
||||
d.canvas[pixel] = nil
|
||||
}
|
||||
}
|
||||
|
||||
d.renderer.SetDrawColor(0, 0, 0, 255)
|
||||
for i, pixel := range pixelHistory {
|
||||
if !pixel.start && i > 0 {
|
||||
prev := pixelHistory[i-1]
|
||||
if prev.x == pixel.x && prev.y == pixel.y {
|
||||
d.renderer.DrawPoint(pixel.x, pixel.y)
|
||||
} else {
|
||||
d.renderer.DrawLine(
|
||||
pixel.x,
|
||||
pixel.y,
|
||||
prev.x,
|
||||
prev.y,
|
||||
)
|
||||
}
|
||||
}
|
||||
d.renderer.DrawPoint(pixel.x, pixel.y)
|
||||
}
|
||||
|
||||
// Draw the FPS.
|
||||
d.DrawDebugOverlay()
|
||||
|
||||
d.renderer.Present()
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Destroy the scene.
|
||||
func (s *Editor) Destroy() error {
|
||||
return nil
|
||||
}
|
||||
|
|
@ -1,9 +0,0 @@
|
|||
package scene
|
||||
|
||||
import "github.com/kirsle/golog"
|
||||
|
||||
var log *golog.Logger
|
||||
|
||||
func init() {
|
||||
log = golog.GetLogger("doodle")
|
||||
}
|
||||
|
|
@ -1,67 +0,0 @@
|
|||
package scene
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"fmt"
|
||||
|
||||
"git.kirsle.net/apps/doodle/events"
|
||||
)
|
||||
|
||||
// Scene is an interface for the top level of a game mode. The game points to
|
||||
// one Scene at a time, and that Scene has majority control of the main loop,
|
||||
// and maintains its own state local to that scene.
|
||||
type Scene interface {
|
||||
String() string // the scene's name
|
||||
Setup() error
|
||||
Loop() error
|
||||
Destroy() error
|
||||
}
|
||||
|
||||
// Manager is a type that provides context switching features to manage scenes.
|
||||
type Manager struct {
|
||||
events *events.State
|
||||
scene Scene
|
||||
ticks uint64
|
||||
}
|
||||
|
||||
// NewManager creates the new manager.
|
||||
func NewManager(events *events.State) Manager {
|
||||
return Manager{
|
||||
events: events,
|
||||
scene: nil,
|
||||
}
|
||||
}
|
||||
|
||||
// Go to a new scene. This tears down the existing scene, sets up the new one,
|
||||
// and switches control to the new scene.
|
||||
func (m *Manager) Go(scene Scene) error {
|
||||
// Already running a scene?
|
||||
if m.scene != nil {
|
||||
if err := m.scene.Destroy(); err != nil {
|
||||
return fmt.Errorf("couldn't destroy scene %s: %s", m.scene, err)
|
||||
}
|
||||
m.scene = nil
|
||||
}
|
||||
|
||||
// Initialize the new scene.
|
||||
m.scene = scene
|
||||
return m.scene.Setup()
|
||||
}
|
||||
|
||||
// Loop the scene manager. This is the game's main loop which runs all the tasks
|
||||
// that fall in the realm of the scene manager.
|
||||
func (m *Manager) Loop() error {
|
||||
if m.scene == nil {
|
||||
return errors.New("no scene loaded")
|
||||
}
|
||||
|
||||
// Poll for events.
|
||||
ev, err := m.events.Poll(m.ticks)
|
||||
if err != nil {
|
||||
log.Error("event poll error: %s", err)
|
||||
return err
|
||||
}
|
||||
_ = ev
|
||||
|
||||
return m.scene.Loop()
|
||||
}
|
||||
|
|
@ -0,0 +1,252 @@
|
|||
package doodle
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"strings"
|
||||
|
||||
"git.kirsle.net/apps/doodle/balance"
|
||||
"git.kirsle.net/apps/doodle/events"
|
||||
"git.kirsle.net/apps/doodle/render"
|
||||
)
|
||||
|
||||
// Shell implements the developer console in-game.
|
||||
type Shell struct {
|
||||
parent *Doodle
|
||||
Open bool
|
||||
Prompt string
|
||||
Text string
|
||||
History []string
|
||||
Output []string
|
||||
Flashes []Flash
|
||||
Cursor string
|
||||
cursorFlip uint64 // ticks until cursor flip
|
||||
cursorRate uint64
|
||||
}
|
||||
|
||||
// Flash holds a message to flash on screen.
|
||||
type Flash struct {
|
||||
Text string
|
||||
Expires uint64 // tick that it expires
|
||||
}
|
||||
|
||||
// NewShell initializes the shell helper (the "Shellper").
|
||||
func NewShell(d *Doodle) Shell {
|
||||
return Shell{
|
||||
parent: d,
|
||||
History: []string{},
|
||||
Output: []string{},
|
||||
Flashes: []Flash{},
|
||||
Prompt: ">",
|
||||
Cursor: "_",
|
||||
cursorRate: balance.ShellCursorBlinkRate,
|
||||
}
|
||||
}
|
||||
|
||||
// Close the shell, resetting its internal state.
|
||||
func (s *Shell) Close() {
|
||||
log.Debug("Shell: closing shell")
|
||||
s.Open = false
|
||||
s.Prompt = ">"
|
||||
s.Text = ""
|
||||
}
|
||||
|
||||
// Execute a command in the shell.
|
||||
func (s *Shell) Execute(input string) {
|
||||
command := s.Parse(input)
|
||||
err := command.Run(s.parent)
|
||||
if err != nil {
|
||||
s.Write(err.Error())
|
||||
}
|
||||
|
||||
if command.Raw != "" {
|
||||
s.History = append(s.History, command.Raw)
|
||||
}
|
||||
|
||||
// Reset the text buffer in the shell.
|
||||
s.Text = ""
|
||||
}
|
||||
|
||||
// Write a line of output text to the console.
|
||||
func (s *Shell) Write(line string) {
|
||||
s.Output = append(s.Output, line)
|
||||
s.Flashes = append(s.Flashes, Flash{
|
||||
Text: line,
|
||||
Expires: s.parent.ticks + balance.FlashTTL,
|
||||
})
|
||||
}
|
||||
|
||||
// Parse the command line.
|
||||
func (s *Shell) Parse(input string) Command {
|
||||
input = strings.TrimSpace(input)
|
||||
if len(input) == 0 {
|
||||
return Command{}
|
||||
}
|
||||
|
||||
var (
|
||||
inQuote bool
|
||||
buffer = bytes.NewBuffer([]byte{})
|
||||
words = []string{}
|
||||
)
|
||||
for i := 0; i < len(input); i++ {
|
||||
char := input[i]
|
||||
switch char {
|
||||
case ' ':
|
||||
if inQuote {
|
||||
buffer.WriteByte(char)
|
||||
continue
|
||||
}
|
||||
|
||||
if word := buffer.String(); word != "" {
|
||||
words = append(words, word)
|
||||
buffer.Reset()
|
||||
}
|
||||
case '"':
|
||||
if !inQuote {
|
||||
// An opening quote character.
|
||||
inQuote = true
|
||||
} else {
|
||||
// The closing quote.
|
||||
inQuote = false
|
||||
|
||||
if word := buffer.String(); word != "" {
|
||||
words = append(words, word)
|
||||
buffer.Reset()
|
||||
}
|
||||
}
|
||||
default:
|
||||
buffer.WriteByte(char)
|
||||
}
|
||||
}
|
||||
|
||||
if remainder := buffer.String(); remainder != "" {
|
||||
words = append(words, remainder)
|
||||
}
|
||||
|
||||
return Command{
|
||||
Raw: input,
|
||||
Command: words[0],
|
||||
Args: words[1:],
|
||||
ArgsLiteral: strings.TrimSpace(input[len(words[0]):]),
|
||||
}
|
||||
}
|
||||
|
||||
// Draw the shell.
|
||||
func (s *Shell) Draw(d *Doodle, ev *events.State) error {
|
||||
if ev.EscapeKey.Read() {
|
||||
s.Close()
|
||||
return nil
|
||||
} else if ev.EnterKey.Read() || ev.EscapeKey.Read() {
|
||||
s.Execute(s.Text)
|
||||
s.Close()
|
||||
return nil
|
||||
}
|
||||
|
||||
// Compute the line height we can draw.
|
||||
lineHeight := balance.ShellFontSize + int(balance.ShellPadding)
|
||||
|
||||
// If the console is open, draw the console.
|
||||
if s.Open {
|
||||
// Cursor flip?
|
||||
if d.ticks > s.cursorFlip {
|
||||
s.cursorFlip = d.ticks + s.cursorRate
|
||||
if s.Cursor == "" {
|
||||
s.Cursor = "_"
|
||||
} else {
|
||||
s.Cursor = ""
|
||||
}
|
||||
}
|
||||
|
||||
// Read a character from the keyboard.
|
||||
if key := ev.ReadKey(); key != "" {
|
||||
// Backspace?
|
||||
if key == `\b` {
|
||||
if len(s.Text) > 0 {
|
||||
s.Text = s.Text[:len(s.Text)-1]
|
||||
}
|
||||
} else {
|
||||
s.Text += key
|
||||
}
|
||||
}
|
||||
|
||||
// How tall is the box?
|
||||
boxHeight := int32(lineHeight*(balance.ShellHistoryLineCount+1)) + balance.ShellPadding
|
||||
|
||||
// Draw the background color.
|
||||
d.Engine.DrawBox(
|
||||
balance.ShellBackgroundColor,
|
||||
render.Rect{
|
||||
X: 0,
|
||||
Y: d.height - boxHeight,
|
||||
W: d.width,
|
||||
H: boxHeight,
|
||||
},
|
||||
)
|
||||
|
||||
// Draw the recent commands.
|
||||
outputY := d.height - int32(lineHeight*2)
|
||||
for i := 0; i < balance.ShellHistoryLineCount; i++ {
|
||||
if len(s.Output) > i {
|
||||
line := s.Output[len(s.Output)-1-i]
|
||||
d.Engine.DrawText(
|
||||
render.Text{
|
||||
Text: line,
|
||||
Size: balance.ShellFontSize,
|
||||
Color: render.Grey,
|
||||
},
|
||||
render.Point{
|
||||
X: balance.ShellPadding,
|
||||
Y: outputY,
|
||||
},
|
||||
)
|
||||
}
|
||||
outputY -= int32(lineHeight)
|
||||
}
|
||||
|
||||
// Draw the command prompt.
|
||||
d.Engine.DrawText(
|
||||
render.Text{
|
||||
Text: s.Prompt + s.Text + s.Cursor,
|
||||
Size: balance.ShellFontSize,
|
||||
Color: balance.ShellForegroundColor,
|
||||
},
|
||||
render.Point{
|
||||
X: balance.ShellPadding,
|
||||
Y: d.height - int32(balance.ShellFontSize) - balance.ShellPadding,
|
||||
},
|
||||
)
|
||||
} else if len(s.Flashes) > 0 {
|
||||
// Otherwise, just draw flashed messages.
|
||||
valid := false // Did we actually draw any?
|
||||
|
||||
outputY := d.height - int32(lineHeight*2)
|
||||
for i := len(s.Flashes); i > 0; i-- {
|
||||
flash := s.Flashes[i-1]
|
||||
if d.ticks >= flash.Expires {
|
||||
continue
|
||||
}
|
||||
|
||||
d.Engine.DrawText(
|
||||
render.Text{
|
||||
Text: flash.Text,
|
||||
Size: balance.ShellFontSize,
|
||||
Color: render.SkyBlue,
|
||||
Stroke: render.Grey,
|
||||
Shadow: render.Black,
|
||||
},
|
||||
render.Point{
|
||||
X: balance.ShellPadding,
|
||||
Y: outputY,
|
||||
},
|
||||
)
|
||||
outputY -= int32(lineHeight)
|
||||
valid = true
|
||||
}
|
||||
|
||||
// If we've exhausted all flashes, free up the memory.
|
||||
if !valid {
|
||||
s.Flashes = []Flash{}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
Loading…
Reference in New Issue