Cloud layer.

elements/cloud.go

@@ -0,0 +1,62 @@
+package elements
+
+import (
+	"math"
+	"mover/assets"
+	"mover/gamedata"
+
+	"github.com/hajimehoshi/ebiten/v2"
+)
+
+type Cloud struct {
+	Sprite   *ebiten.Image
+	position gamedata.Coordinates
+	angle    float64
+	velocity float64
+	Alpha    float64
+}
+
+func NewCloud(a gamedata.Area, angle, velocity float64) *Cloud {
+	c := &Cloud{
+		Sprite:   ebiten.NewImage(a.Width, a.Height),
+		angle:    angle, //rand.Float64() * (math.Pi * 2),
+		velocity: velocity,
+	}
+	return c
+}
+
+func (c *Cloud) Update() error {
+
+	c.position.X += c.velocity * math.Cos(c.angle)
+	c.position.Y += c.velocity * math.Sin(c.angle)
+	return nil
+}
+
+func (c *Cloud) Draw() {
+	c.Sprite.Clear()
+	//c.Sprite.Fill(color.RGBA{R: 0xff, G: 0xff, B: 0xff, A: 0xff})
+	//c.Sprite.Fill(color.White)
+
+	cloudsprite := assets.ImageBank[assets.Cloud]
+
+	spritex := cloudsprite.Bounds().Dx()
+	spritey := cloudsprite.Bounds().Dy()
+
+	cloudx := c.Sprite.Bounds().Dx()
+	cloudy := c.Sprite.Bounds().Dy()
+
+	scalex := float64(cloudx) / float64(spritex)
+	scaley := float64(cloudy) / float64(spritey)
+
+	op := &ebiten.DrawImageOptions{}
+	op.GeoM.Scale(scalex, scaley)
+	c.Sprite.DrawImage(assets.ImageBank[assets.Cloud], op)
+}
+
+func (c *Cloud) SetPosition(p gamedata.Coordinates) {
+	c.position = p
+}
+
+func (c *Cloud) GetPosition() gamedata.Coordinates {
+	return c.position
+}