Added weapon drops and collection. New laser item asset.

elements/weapondrop.go

@@ -0,0 +1,66 @@
+package elements
+
+import (
+	"math"
+	"mover/assets"
+	"mover/gamedata"
+
+	"github.com/hajimehoshi/ebiten/v2"
+)
+
+type WeaponDrop struct {
+	Sprite     *ebiten.Image
+	position   gamedata.Coordinates
+	weapontype gamedata.WeaponType
+	cycle      int
+	collected  bool
+}
+
+func NewWeaponDrop(wt gamedata.WeaponType) *WeaponDrop {
+	wp := &WeaponDrop{
+		Sprite:     ebiten.NewImage(32, 32),
+		weapontype: wt,
+		cycle:      0,
+		collected:  false,
+	}
+	return wp
+}
+
+func (wp *WeaponDrop) SetPosition(pos gamedata.Coordinates) {
+	wp.position = pos
+}
+
+func (wp *WeaponDrop) GetPosition() gamedata.Coordinates {
+	return wp.position
+}
+
+func (wp *WeaponDrop) GetWeaponType() gamedata.WeaponType {
+	return wp.weapontype
+}
+
+func (wp *WeaponDrop) Update() error {
+	wp.cycle++
+	return nil
+}
+
+func (wp *WeaponDrop) Draw() {
+	wp.Sprite.Clear()
+
+	dy := 2 * math.Sin(float64(wp.cycle)/(math.Pi*2))
+	op := &ebiten.DrawImageOptions{}
+	op.GeoM.Translate(0, dy)
+
+	switch wp.weapontype {
+	case gamedata.WeaponTypeLaser:
+		wp.Sprite.DrawImage(assets.ImageBank[assets.ItemLaser], op)
+	}
+
+}
+
+func (wp *WeaponDrop) SetCollected(c bool) {
+	wp.collected = c
+}
+
+func (wp *WeaponDrop) IsCollected() bool {
+	return wp.collected
+}