Twin-stick shooter
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package main
import (
"image"
_ "image/png"
"github.com/hajimehoshi/ebiten/v2"
)
// BatSpriteSheet represents a collection of sprite images.
type BatSpriteSheet struct {
Frame1 *ebiten.Image
Frame2 *ebiten.Image
Frame3 *ebiten.Image
Frame4 *ebiten.Image
Frame5 *ebiten.Image
Frame6 *ebiten.Image
Frame7 *ebiten.Image
}
// LoadBatSpriteSheet loads the embedded BatSpriteSheet.
func LoadBatSpriteSheet() (*BatSpriteSheet, error) {
tileSize := 32
f, err := assetsFS.Open("assets/creeps/bat/fly.png")
if err != nil {
return nil, err
}
img, _, err := image.Decode(f)
if err != nil {
return nil, err
}
sheet := ebiten.NewImageFromImage(img)
// spriteAt returns a sprite at the provided coordinates.
spriteAt := func(x, y int) *ebiten.Image {
return sheet.SubImage(image.Rect(x*tileSize, (y+1)*tileSize, (x+1)*tileSize, y*tileSize)).(*ebiten.Image)
}
// Populate PlayerSpriteSheet.
s := &BatSpriteSheet{}
s.Frame1 = spriteAt(0, 0)
s.Frame2 = spriteAt(1, 0)
s.Frame3 = spriteAt(2, 0)
s.Frame4 = spriteAt(3, 0)
s.Frame5 = spriteAt(4, 0)
s.Frame6 = spriteAt(5, 0)
s.Frame7 = spriteAt(6, 0)
return s, nil
}