Brought in screen manager, minor refactor.

elements/mover.go

@@ -0,0 +1,150 @@
+package elements
+
+import (
+	"image"
+	"mover/assets"
+	"mover/gamedata"
+
+	_ "embed"
+	"image/color"
+	_ "image/png"
+
+	"github.com/hajimehoshi/ebiten/v2"
+)
+
+const (
+	MoverActionDefault = iota
+	MoverActionDamaged
+	MoverActionDying
+	MoverActionExploding
+	MoverActionDead
+	MoverActionMax
+)
+
+type MoverAction uint
+
+type Mover struct {
+	Sprite     *ebiten.Image
+	Maks       *ebiten.Image
+	MaksDest   *ebiten.Image
+	Angle      float64
+	Pos        gamedata.Coordinates
+	Origin     gamedata.Coordinates
+	Action     MoverAction
+	cycles     int
+	rotating   bool
+	Toggled    bool
+	Hit        bool
+	Touched    bool
+	dyingcount int
+}
+
+func NewMover() *Mover {
+	m := &Mover{
+		Sprite:     ebiten.NewImage(MOVER_WIDTH, MOVER_HEIGHT),
+		Maks:       ebiten.NewImage(MOVER_WIDTH, MOVER_HEIGHT),
+		MaksDest:   ebiten.NewImage(MOVER_WIDTH, MOVER_HEIGHT),
+		Action:     MoverActionDefault,
+		cycles:     4,
+		Angle:      0,
+		rotating:   false,
+		Toggled:    false,
+		dyingcount: 0,
+	}
+
+	m.Maks.Fill(color.White)
+	return m
+}
+
+func (m *Mover) ToggleRotate() {
+	m.rotating = !m.rotating
+}
+
+func (m *Mover) SetAngle(a float64) {
+	m.Angle = a
+}
+
+func (m *Mover) SetOrigin(coords gamedata.Coordinates) {
+	m.Origin = coords
+	m.Pos = coords
+}
+
+func (m *Mover) Draw() {
+	m.Sprite.Clear()
+	m.MaksDest.Clear()
+
+	idx := (m.cycles / 8) % 4
+
+	y0 := 0
+	y1 := 48
+	x0 := 48 * idx
+	x1 := x0 + 48
+
+	switch m.Action {
+	case MoverActionDefault:
+		op := &ebiten.DrawImageOptions{}
+		op.GeoM.Translate(14, 40)
+		m.Sprite.DrawImage(assets.ImageBank[assets.FlyEyeShadow], op)
+		m.Sprite.DrawImage(assets.ImageBank[assets.FlyEyeNormal].SubImage(image.Rect(x0, y0, x1, y1)).(*ebiten.Image), nil)
+	case MoverActionDamaged:
+		op := &ebiten.DrawImageOptions{}
+		op.GeoM.Translate(14, 40)
+		m.Sprite.DrawImage(assets.ImageBank[assets.FlyEyeShadow], op)
+		m.Sprite.DrawImage(assets.ImageBank[assets.FlyEyeDamaged].SubImage(image.Rect(x0, y0, x1, y1)).(*ebiten.Image), nil)
+	case MoverActionDying:
+
+		if (m.cycles/5)%2 == 0 {
+
+			m.MaksDest.DrawImage(assets.ImageBank[assets.FlyEyeDamaged].SubImage(image.Rect(x0, y0, x1, y1)).(*ebiten.Image), nil)
+			op := &ebiten.DrawImageOptions{}
+			op.GeoM.Reset()
+			op.Blend = ebiten.BlendSourceAtop
+			m.MaksDest.DrawImage(m.Maks, op)
+			m.Sprite.DrawImage(m.MaksDest, nil)
+
+		} else {
+			m.Sprite.DrawImage(assets.ImageBank[assets.FlyEyeDamaged].SubImage(image.Rect(x0, y0, x1, y1)).(*ebiten.Image), nil)
+		}
+		if m.dyingcount >= 31 {
+			m.cycles = 0
+			m.SetHit()
+		}
+	case MoverActionExploding:
+		m.Sprite.DrawImage(assets.ImageBank[assets.FlyEyeDying].SubImage(image.Rect(x0, y0, x1, y1)).(*ebiten.Image), nil)
+		if idx == 3 {
+			m.SetHit()
+		}
+	default:
+	}
+}
+
+func (m *Mover) Update() {
+	/*
+		dx := 0. //40 * math.Cos(float64(m.cycles)/16)
+		dy := 0. //40 * math.Sin(float64(m.cycles)/16)
+
+		m.Pos = Coordinates{X: m.Origin.X + dx, Y: m.Origin.Y + dy}
+	*/
+	/*
+		if m.rotating {
+			m.Angle = float64(m.cycles) / (math.Pi * 2)
+		}
+	*/
+	if m.Action == MoverActionDying {
+		m.dyingcount++
+	}
+	m.cycles++
+}
+
+func (m *Mover) SetHit() {
+	m.Action++ // = (m.Action + 1) % MoverActionMax
+}
+
+func (m *Mover) ToggleColor() {
+	//m.Toggled = !m.Toggled
+	if m.Action == MoverActionDefault {
+		m.Action = MoverActionDamaged
+	} else if m.Action == MoverActionDamaged {
+		m.Action = MoverActionDefault
+	}
+}