twitchapon-anim

commit 4f9e876ddba3a9ca42a901c6926dd04e60b611ce
Author: bsandro <brian.drosan@gmail.com>
Date:   Mon,  9 Nov 2020 04:00:31 +0300

initial commit

Diffstat:
A
BakaHa.png
 | 
0

A
ebitest
 | 
0

A
ebitest.go
 | 
120
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
A
go.mod
 | 
5
+++++
A
go.sum
 | 
63
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
A
init.go
 | 
21
+++++++++++++++++++++

6 files changed, 209 insertions(+), 0 deletions(-)
diff --git a/BakaHa.png b/BakaHa.png
Binary files differ.
diff --git a/ebitest b/ebitest
Binary files differ.
diff --git a/ebitest.go b/ebitest.go
@@ -0,0 +1,120 @@
+package main
+
+import (
+	_ "bytes"
+	"fmt"
+	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/hajimehoshi/ebiten/v2/ebitenutil"
+	_ "image"
+	_ "image/png"
+	"log"
+	"math/rand"
+	"time"
+)
+
+var ScreenSize struct {
+	width, height int
+}
+
+// BakaHa initialized in init()
+var BakaHa *ebiten.Image
+
+type Sprite struct {
+	img          *ebiten.Image
+	opt          ebiten.DrawImageOptions
+	x, y, vx, vy int
+}
+
+type Game struct {
+	inited  bool
+	sprites []*Sprite
+}
+
+func (g *Game) Update() error {
+	if !g.inited {
+		fmt.Println("(Game::update()) calling Game::init()")
+		g.init()
+	}
+
+	for _, sprite := range g.sprites {
+		err := sprite.Update()
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (sprite *Sprite) Update() error {
+	w, _ := sprite.img.Size()
+	fps := ebiten.CurrentFPS()
+	if fps == 0 {
+		fps = 60.0
+	}
+	//fmt.Printf("sprite x = %d, vx = %d, width = %d, fps = %0.2f\n", sprite.x, sprite.vx, w, fps)
+	// bouncing off walls
+	if sprite.x + w >= ScreenSize.width || sprite.x <= 0 {
+		fmt.Println("bounce")
+		sprite.vx *= -1
+	}
+	// correcting speed for the framerate value
+	dx := float64(sprite.vx) / fps
+	//fmt.Printf("dx = %0.2f\n", dx)
+	sprite.x += int(dx)
+
+	if sprite.x < 0 {
+		fmt.Printf("Error! x = %d\n", sprite.x)
+		sprite.x = 0
+	}
+
+	return nil
+}
+
+func (g *Game) Draw(screen *ebiten.Image) {
+	defer g.ShowDebug(screen)
+
+	for _, sprite := range g.sprites {
+		//fmt.Printf("%d - %d:%d\n", ind, sprite.x, sprite.y)
+		sprite.opt.GeoM.Reset()
+		sprite.opt.GeoM.Translate(float64(sprite.x), float64(sprite.y))
+		screen.DrawImage(sprite.img, &sprite.opt)
+	}
+}
+
+func (g *Game) Layout(outsideWidth, outsideHeight int) (screenWidth, screenHeight int) {
+	//fmt.Printf("layout %d:%d\n", outsideWidth, outsideHeight)
+	return ScreenSize.width, ScreenSize.height
+}
+
+func (g *Game) init() {
+	defer func() {
+		g.inited = true
+		fmt.Println("Game inited ok")
+	}()
+
+	fmt.Println("Game::init()")
+	rand.Seed(time.Now().UnixNano())
+
+	for i := 0; i < 5; i++ {
+		randX := rand.Intn(100)
+		fmt.Println("randX := ", randX)
+		g.sprites = append(g.sprites, &Sprite{BakaHa, ebiten.DrawImageOptions{}, randX, i * 100, 100, 0})
+	}
+}
+
+func main() {
+	fmt.Println("ebiten subgame")
+
+	game := &Game{}
+	ebiten.SetWindowSize(ScreenSize.width, ScreenSize.height)
+	ebiten.SetWindowTitle("ebiten subgame")
+	if err := ebiten.RunGame(game); err != nil {
+		log.Fatal(err)
+	}
+}
+
+func (g *Game) ShowDebug(screen *ebiten.Image) {
+	msg := fmt.Sprintf("TPS: %0.2f\nFPS: %0.2f", ebiten.CurrentTPS(), ebiten.CurrentFPS())
+	ebitenutil.DebugPrint(screen, msg)
+}
diff --git a/go.mod b/go.mod
@@ -0,0 +1,5 @@
+module bsandro.org/git/ebitest
+
+go 1.15
+
+require github.com/hajimehoshi/ebiten/v2 v2.0.0
diff --git a/go.sum b/go.sum
@@ -0,0 +1,63 @@
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
+github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200707082815-5321531c36a2 h1:Ac1OEHHkbAZ6EUnJahF0GKcU0FjPc/V8F1DvjhKngFE=
+github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200707082815-5321531c36a2/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
+github.com/gofrs/flock v0.8.0/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
+github.com/hajimehoshi/bitmapfont/v2 v2.1.0/go.mod h1:2BnYrkTQGThpr/CY6LorYtt/zEPNzvE/ND69CRTaHMs=
+github.com/hajimehoshi/ebiten v1.12.3 h1:/KYCLW5VvfMKOMb8TqjKFlDCQAibM+OiA+LUwjS8t0E=
+github.com/hajimehoshi/ebiten/v2 v2.0.0 h1:G8mhkKFtnDPPZ/ChaGWx4Bm0NusYEcafGCJ8QLxEaYs=
+github.com/hajimehoshi/ebiten/v2 v2.0.0/go.mod h1:hpZZQ/kk8DZqft7QsQ5hZLRQXHSZPdKnaa0tcJ3CZFE=
+github.com/hajimehoshi/file2byteslice v0.0.0-20200812174855-0e5e8a80490e/go.mod h1:CqqAHp7Dk/AqQiwuhV1yT2334qbA/tFWQW0MD2dGqUE=
+github.com/hajimehoshi/go-mp3 v0.3.1/go.mod h1:qMJj/CSDxx6CGHiZeCgbiq2DSUkbK0UbtXShQcnfyMM=
+github.com/hajimehoshi/oto v0.6.1/go.mod h1:0QXGEkbuJRohbJaxr7ZQSxnju7hEhseiPx2hrh6raOI=
+github.com/hajimehoshi/oto v0.6.6 h1:HYSZ8cYZqOL4iHugvbcfhNN2smiSOsBMaoSBi4nnWcw=
+github.com/hajimehoshi/oto v0.6.6/go.mod h1:0QXGEkbuJRohbJaxr7ZQSxnju7hEhseiPx2hrh6raOI=
+github.com/jakecoffman/cp v1.0.0/go.mod h1:JjY/Fp6d8E1CHnu74gWNnU0+b9VzEdUVPoJxg2PsTQg=
+github.com/jfreymuth/oggvorbis v1.0.1 h1:NT0eXBgE2WHzu6RT/6zcb2H10Kxj6Fm3PccT0LE6bqw=
+github.com/jfreymuth/oggvorbis v1.0.1/go.mod h1:NqS+K+UXKje0FUYUPosyQ+XTVvjmVjps1aEZH1sumIk=
+github.com/jfreymuth/vorbis v1.0.0 h1:SmDf783s82lIjGZi8EGUUaS7YxPHgRj4ZXW/h7rUi7U=
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+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
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diff --git a/init.go b/init.go
@@ -0,0 +1,21 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	//"github.com/hajimehoshi/ebiten/v2"
+	"github.com/hajimehoshi/ebiten/v2/ebitenutil"
+)
+
+func init() {
+	fmt.Println("init()")
+	img, _, err := ebitenutil.NewImageFromFile("BakaHa.png")
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	BakaHa = img
+
+	ScreenSize.width = 640
+	ScreenSize.height = 480
+}