twitchapon-anim

commit 2d914ffbe94bd2d82f5f95c710887e59cb33dde1
parent 31993e51017b4c26d7149eb1be431beec50aab28
Author: bsandro <brian.drosan@gmail.com>
Date:   Tue, 17 Nov 2020 03:08:47 +0300

go fmt

Diffstat:
M
ebitest.go
 | 
23
+++++++++++++----------
M
init.go
 | 
4
++--

2 files changed, 15 insertions(+), 12 deletions(-)
diff --git a/ebitest.go b/ebitest.go
@@ -25,10 +25,11 @@ var ScreenSize struct {
 var BakaHa *ebiten.Image
 
 type Sprite struct {
-	img   *ebiten.Image
-	opt   ebiten.DrawImageOptions
-	x, y  float64
-	angle float64
+	img      *ebiten.Image
+	opt      ebiten.DrawImageOptions
+	x, y     float64
+	angle    float64
+	rotation float64
 }
 
 type Game struct {
@@ -42,10 +43,6 @@ func (g *Game) Update() error {
 		g.init()
 	}
 
-	//if ebiten.IsDrawingSkipped() {
-	//	return nil
-	//}
-
 	if ebiten.IsKeyPressed(ebiten.KeyQ) || ebiten.IsKeyPressed(ebiten.KeyEscape) {
 		// @todo find out if it is possible to gracefully stop the game via ebiten structure
 		return errors.New("exit")
@@ -106,6 +103,9 @@ func (sprite *Sprite) Update() error {
 		sprite.y = y
 	}
 
+	// rotating image
+	sprite.rotation += math.Pi / 60.0
+
 	return nil
 }
 
@@ -113,8 +113,11 @@ func (g *Game) Draw(screen *ebiten.Image) {
 	defer g.ShowDebug(screen)
 
 	for _, sprite := range g.sprites {
+		//w, h := sprite.img.Size()
 		sprite.opt.GeoM.Reset()
-		sprite.opt.GeoM.Translate(float64(sprite.x), float64(sprite.y))
+		//sprite.opt.GeoM.Translate(-float64(w)/2.0, -float64(h)/2.0)
+		//sprite.opt.GeoM.Rotate(sprite.rotation)
+		sprite.opt.GeoM.Translate(sprite.x, sprite.y)
 		screen.DrawImage(sprite.img, &sprite.opt)
 	}
 }
@@ -138,7 +141,7 @@ func (g *Game) init() {
 		y := float64(ScreenSize.height) / 2.0
 		angle := rand.Float64() * math.Pi * 2.0
 		fmt.Printf("initial x, y, angle: %0.2f %0.2f %0.2f\n", x, y, angle)
-		g.sprites = append(g.sprites, &Sprite{BakaHa, ebiten.DrawImageOptions{}, x, y, angle})
+		g.sprites = append(g.sprites, &Sprite{BakaHa, ebiten.DrawImageOptions{}, x, y, angle, 0.0 /* rotation */})
 	}
 }
 
diff --git a/init.go b/init.go
@@ -4,9 +4,9 @@ import (
 	"bytes"
 	"fmt"
 	"github.com/hajimehoshi/ebiten/v2"
-	"log"
-	"image"
 	_ "golang.org/x/image/webp"
+	"image"
+	"log"
 )
 
 //go:generate go run generate/embed.go