make penguin move

3 files changed, 37 insertions, 3 deletions

diff --git a/assets/penguin.png b/assets/penguin.png
new file mode 100644
index 0000000..435ecfe
--- /dev/null
+++ b/assets/penguin.png
diff --git a/build.sh b/build.sh
index ae7e042..d057c90 100755
--- a/build.sh
+++ b/build.sh
@@ -8,6 +8,7 @@ cd build
 env GOOS=js GOARCH=wasm go build -o $name.wasm ..
 cp $(go env GOROOT)/misc/wasm/wasm_exec.js .
 cp ../index.html .
+cp -r ../assets .
 
 [ "$1" = "serve" ] && gopherjs serve
 
diff --git a/pengui.go b/pengui.go
index 60612a9..842584b 100644
--- a/pengui.go
+++ b/pengui.go
@@ -1,29 +1,62 @@
 package main
 
 import (
+	_ "image/png"
+    "image/color"
 	"log"
 
 	"github.com/hajimehoshi/ebiten/v2"
 	"github.com/hajimehoshi/ebiten/v2/ebitenutil"
 )
 
+var img *ebiten.Image
+
+var x float64 = 0
+var y float64 = 0
+
+func init() {
+	var err error
+	img, _, err = ebitenutil.NewImageFromFile("assets/penguin.png")
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
 type Game struct{}
 
 func (g *Game) Update() error {
+    if ebiten.IsKeyPressed(ebiten.KeyArrowRight) {
+        x = x + 1
+    }
+    if ebiten.IsKeyPressed(ebiten.KeyArrowLeft) {
+        x = x - 1
+    }
+    if ebiten.IsKeyPressed(ebiten.KeyArrowUp) {
+        y = y - 1
+    }
+    if ebiten.IsKeyPressed(ebiten.KeyArrowDown) {
+        y = y + 1
+    }
+    log.Printf("%f %f\n", x, y)
+        
 	return nil
 }
 
 func (g *Game) Draw(screen *ebiten.Image) {
-	ebitenutil.DebugPrint(screen, "Hello, World!")
+    screen.Fill(color.RGBA{0xfe, 0xfe, 0xfe, 0xff})
+
+    op := &ebiten.DrawImageOptions{}
+	op.GeoM.Translate(x, y)
+    screen.DrawImage(img, op)
 }
 
 func (g *Game) Layout(outsideWidth, outsideHeight int) (screenWidth, screenHeight int) {
-	return 320, 240
+	return 640, 480
 }
 
 func main() {
 	ebiten.SetWindowSize(640, 480)
-	ebiten.SetWindowTitle("Hello, World!")
+	ebiten.SetWindowTitle("penguin")
 	if err := ebiten.RunGame(&Game{}); err != nil {
 		log.Fatal(err)
 	}