Bugfix: Undo/Redo works for the Doodad Editor
Changed dependencies around so the undo/redo feature works on doodads as well as levels.
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@ -2,6 +2,7 @@ package doodads
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import (
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import (
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"git.kirsle.net/apps/doodle/pkg/balance"
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"git.kirsle.net/apps/doodle/pkg/balance"
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"git.kirsle.net/apps/doodle/pkg/drawtool"
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"git.kirsle.net/apps/doodle/pkg/level"
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"git.kirsle.net/apps/doodle/pkg/level"
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"git.kirsle.net/apps/doodle/pkg/log"
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"git.kirsle.net/apps/doodle/pkg/log"
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"git.kirsle.net/go/render"
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"git.kirsle.net/go/render"
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@ -17,6 +18,9 @@ type Doodad struct {
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Hitbox render.Rect `json:"hitbox"`
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Hitbox render.Rect `json:"hitbox"`
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Layers []Layer `json:"layers"`
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Layers []Layer `json:"layers"`
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Tags map[string]string `json:"data"` // arbitrary key/value data storage
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Tags map[string]string `json:"data"` // arbitrary key/value data storage
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// Undo history, temporary live data not persisted to the level file.
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UndoHistory *drawtool.History `json:"-" msgpack:"-"`
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}
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}
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// Layer holds a layer of drawing data for a Doodad.
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// Layer holds a layer of drawing data for a Doodad.
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@ -44,6 +48,7 @@ func New(size int) *Doodad {
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},
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},
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},
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},
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Tags: map[string]string{},
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Tags: map[string]string{},
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UndoHistory: drawtool.NewHistory(balance.UndoHistory),
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}
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}
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}
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}
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@ -54,6 +54,7 @@ type Canvas struct {
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// Underlying chunk data for the drawing.
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// Underlying chunk data for the drawing.
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level *level.Level
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level *level.Level
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chunks *level.Chunker
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chunks *level.Chunker
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doodad *doodads.Doodad
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modified bool // set to True when the drawing has been modified, like in Editor Mode.
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modified bool // set to True when the drawing has been modified, like in Editor Mode.
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// Actors to superimpose on top of the drawing.
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// Actors to superimpose on top of the drawing.
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@ -179,6 +180,7 @@ func (w *Canvas) LoadLevel(level *level.Level) {
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// LoadDoodad initializes a Canvas from a Doodad object.
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// LoadDoodad initializes a Canvas from a Doodad object.
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func (w *Canvas) LoadDoodad(d *doodads.Doodad) {
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func (w *Canvas) LoadDoodad(d *doodads.Doodad) {
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// TODO more safe
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// TODO more safe
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w.doodad = d
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w.Load(d.Palette, d.Layers[0].Chunker)
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w.Load(d.Palette, d.Layers[0].Chunker)
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}
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}
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@ -106,6 +106,8 @@ func (w *Canvas) commitStroke(tool drawtool.Tool, addHistory bool) {
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// Add the stroke to level history.
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// Add the stroke to level history.
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if w.level != nil && addHistory {
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if w.level != nil && addHistory {
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w.level.UndoHistory.AddStroke(w.currentStroke)
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w.level.UndoHistory.AddStroke(w.currentStroke)
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} else if w.doodad != nil && addHistory {
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w.doodad.UndoHistory.AddStroke(w.currentStroke)
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}
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}
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w.RemoveStroke(w.currentStroke)
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w.RemoveStroke(w.currentStroke)
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@ -42,12 +42,17 @@ func (w *Canvas) RemoveStroke(stroke *drawtool.Stroke) bool {
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// added to the level. Returns false and emits a warning to the log if the
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// added to the level. Returns false and emits a warning to the log if the
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// canvas has no level loaded properly.
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// canvas has no level loaded properly.
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func (w *Canvas) UndoStroke() bool {
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func (w *Canvas) UndoStroke() bool {
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if w.level == nil {
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var undoer *drawtool.History
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log.Error("Canvas.UndoStroke: no Level currently available to the canvas")
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if w.level != nil {
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undoer = w.level.UndoHistory
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} else if w.doodad != nil {
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undoer = w.doodad.UndoHistory
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} else {
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log.Error("Canvas.UndoStroke: no Level or Doodad currently available to the canvas")
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return false
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return false
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}
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}
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latest := w.level.UndoHistory.Latest()
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latest := undoer.Latest()
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if latest != nil {
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if latest != nil {
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// TODO: only single-thickness lines will restore the original color;
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// TODO: only single-thickness lines will restore the original color;
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// thick lines just delete their pixels from the world due to performance.
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// thick lines just delete their pixels from the world due to performance.
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@ -93,23 +98,28 @@ func (w *Canvas) UndoStroke() bool {
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}
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}
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}
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}
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return w.level.UndoHistory.Undo()
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return undoer.Undo()
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}
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}
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// RedoStroke rolls the level's UndoHistory forwards again and replays the
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// RedoStroke rolls the level's UndoHistory forwards again and replays the
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// recently undone changes.
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// recently undone changes.
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func (w *Canvas) RedoStroke() bool {
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func (w *Canvas) RedoStroke() bool {
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if w.level == nil {
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var undoer *drawtool.History
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log.Error("Canvas.UndoStroke: no Level currently available to the canvas")
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if w.level != nil {
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undoer = w.level.UndoHistory
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} else if w.doodad != nil {
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undoer = w.doodad.UndoHistory
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} else {
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log.Error("Canvas.UndoStroke: no Level or Doodad currently available to the canvas")
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return false
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return false
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}
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}
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ok := w.level.UndoHistory.Redo()
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ok := undoer.Redo()
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if !ok {
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if !ok {
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return false
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return false
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}
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}
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latest := w.level.UndoHistory.Latest()
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latest := undoer.Latest()
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// We stored the ActiveSwatch on this stroke as we drew it. Recover it
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// We stored the ActiveSwatch on this stroke as we drew it. Recover it
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// and place the pixels back down.
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// and place the pixels back down.
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