Noah Petherbridge
2b42a072a0
* All private Doodle source code into the pkg/ folder. * Potentially public code into the lib/ folder. * Centralize the logger into a subpackage.
108 lines
2.7 KiB
Go
108 lines
2.7 KiB
Go
package uix
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import (
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"git.kirsle.net/apps/doodle/lib/events"
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"git.kirsle.net/apps/doodle/lib/render"
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"git.kirsle.net/apps/doodle/lib/ui"
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"git.kirsle.net/apps/doodle/pkg/level"
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)
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// loopEditable handles the Loop() part for editable canvases.
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func (w *Canvas) loopEditable(ev *events.State) error {
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// Get the absolute position of the canvas on screen to accurately match
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// it up to mouse clicks.
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var (
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P = ui.AbsolutePosition(w)
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cursor = render.Point{
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X: ev.CursorX.Now - P.X - w.Scroll.X,
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Y: ev.CursorY.Now - P.Y - w.Scroll.Y,
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}
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)
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switch w.Tool {
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case PencilTool:
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// If no swatch is active, do nothing with mouse clicks.
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if w.Palette.ActiveSwatch == nil {
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return nil
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}
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// Clicking? Log all the pixels while doing so.
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if ev.Button1.Now {
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lastPixel := w.lastPixel
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pixel := &level.Pixel{
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X: cursor.X,
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Y: cursor.Y,
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Swatch: w.Palette.ActiveSwatch,
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}
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// Append unique new pixels.
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if len(w.pixelHistory) == 0 || w.pixelHistory[len(w.pixelHistory)-1] != pixel {
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if lastPixel != nil {
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// Draw the pixels in between.
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if lastPixel != pixel {
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for point := range render.IterLine(lastPixel.X, lastPixel.Y, pixel.X, pixel.Y) {
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w.chunks.Set(point, lastPixel.Swatch)
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}
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}
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}
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w.lastPixel = pixel
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w.pixelHistory = append(w.pixelHistory, pixel)
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// Save in the pixel canvas map.
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w.chunks.Set(cursor, pixel.Swatch)
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}
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} else {
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w.lastPixel = nil
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}
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case ActorTool:
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// See if any of the actors are below the mouse cursor.
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var WP = w.WorldIndexAt(cursor)
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_ = WP
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var deleteActors = []*level.Actor{}
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for _, actor := range w.actors {
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box := render.Rect{
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X: actor.Actor.Point.X - P.X - w.Scroll.X,
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Y: actor.Actor.Point.Y - P.Y - w.Scroll.Y,
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W: actor.Canvas.Size().W,
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H: actor.Canvas.Size().H,
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}
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if WP.Inside(box) {
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actor.Canvas.Configure(ui.Config{
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BorderSize: 1,
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BorderColor: render.RGBA(255, 153, 0, 255),
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BorderStyle: ui.BorderSolid,
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Background: render.White, // TODO: cuz the border draws a bgcolor
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})
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// Check for a mouse down event to begin dragging this
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// canvas around.
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if ev.Button1.Read() {
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// Pop this canvas out for the drag/drop.
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if w.OnDragStart != nil {
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deleteActors = append(deleteActors, actor.Actor)
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w.OnDragStart(actor.Actor.Filename)
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}
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break
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} else if ev.Button2.Read() {
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// Right click to delete an actor.
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deleteActors = append(deleteActors, actor.Actor)
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}
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} else {
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actor.Canvas.SetBorderSize(0)
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actor.Canvas.SetBackground(render.RGBA(0, 0, 1, 0)) // TODO
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}
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}
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// Change in actor count?
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if len(deleteActors) > 0 && w.OnDeleteActors != nil {
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w.OnDeleteActors(deleteActors)
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}
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}
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return nil
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}
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