54 lines
1.7 KiB
Go
54 lines
1.7 KiB
Go
package doodle
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// XXX REFACTOR XXX
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// This function only uses EditorUI and not Doodle and is a candidate for
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// refactor into a subpackage if EditorUI itself can ever be decoupled.
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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/doodads"
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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/uix"
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"git.kirsle.net/go/render"
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)
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// DraggableActor is a Doodad being dragged from the Doodad palette.
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type DraggableActor struct {
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canvas *uix.Canvas
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doodad *doodads.Doodad // if a new one from the palette
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actor *level.Actor // if a level actor
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}
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// startDragActor begins the drag event for a Doodad onto a level.
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// actor may be nil (if you drag a new doodad from the palette) or otherwise
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// is an existing actor from the level.
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func (u *EditorUI) startDragActor(doodad *doodads.Doodad, actor *level.Actor) {
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u.Supervisor.DragStart()
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if doodad == nil {
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if actor != nil {
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obj, err := doodads.LoadFile(actor.Filename)
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if err != nil {
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log.Error("startDragExistingActor: actor doodad name %s not found: %s", actor.Filename, err)
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return
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}
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doodad = obj
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} else {
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panic("EditorUI.startDragActor: doodad AND/OR actor is required, but neither were given")
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}
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}
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// Create the canvas to render on the mouse cursor.
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drawing := uix.NewCanvas(doodad.Layers[0].Chunker.Size, false)
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drawing.LoadDoodad(doodad)
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drawing.Resize(doodad.Rect())
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drawing.SetBackground(render.RGBA(0, 0, 1, 0)) // TODO: invisible becomes white
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drawing.MaskColor = balance.DragColor // blueprint effect
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u.DraggableActor = &DraggableActor{
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canvas: drawing,
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doodad: doodad,
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actor: actor,
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}
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}
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