First commit >:]

flame.go

@@ -0,0 +1,69 @@
+package main
+
+import (
+	"bytes"
+	_ "embed"
+	"image"
+	_ "image/png"
+	"log"
+
+	"github.com/hajimehoshi/ebiten/v2"
+)
+
+const (
+	FLAME_ANIMATION_CYCLES = 8
+	FLAME_WIDTH            = 24
+	FLAME_HEIGHT           = 32
+)
+
+var (
+	//go:embed resources/images/hot.png
+	flameAssets_png []byte
+	assetsFlame     *ebiten.Image
+)
+
+type Flame struct {
+	Sprite *ebiten.Image //our principle sprite representing the flame
+	cycle  int           //current animation cycle for the character
+}
+
+func NewFlame() *Flame {
+	return &Flame{
+		cycle:  0,
+		Sprite: ebiten.NewImage(FLAME_WIDTH, FLAME_HEIGHT),
+	}
+}
+
+func (f *Flame) CycleUpdate() {
+	f.cycle = (f.cycle + 1) % CHARACTER_ANIMATION_CYCLES
+}
+
+func (f *Flame) Animate() {
+
+	//compute start and end location of asset to use for animation frame cycle
+	sx := FLAME_WIDTH * f.cycle
+	sy := 0
+	ex := FLAME_WIDTH * (f.cycle + 1)
+	ey := FLAME_HEIGHT
+
+	f.Sprite.Clear()
+	f.Sprite.DrawImage(assetsFlame.SubImage(image.Rect(sx, sy, ex, ey)).(*ebiten.Image), nil)
+
+	f.CycleUpdate()
+}
+
+func (f *Flame) GetWidth() int {
+	return f.Sprite.Bounds().Dx()
+}
+
+func (f *Flame) GetHeight() int {
+	return f.Sprite.Bounds().Dy()
+}
+
+func init() {
+	img, _, err := image.Decode(bytes.NewReader(flameAssets_png))
+	if err != nil {
+		log.Fatal(err)
+	}
+	assetsFlame = ebiten.NewImageFromImage(img)
+}