Add Ebiten VN files

Ebiten/VN/main.go

@@ -0,0 +1,113 @@
+package main
+
+import (
+	_ "image/jpeg"
+    "fmt"
+    "image/color"
+    "io/ioutil"
+    "log"
+
+    "github.com/golang/freetype/truetype"
+    "golang.org/x/image/font"
+
+    "github.com/hajimehoshi/ebiten"
+    "github.com/hajimehoshi/ebiten/ebitenutil"
+    "github.com/hajimehoshi/ebiten/text"
+)
+
+const (
+    screenWidth  = 640
+    screenHeight = 480
+)
+
+type dialogue struct {
+	Speaker character
+	Text string
+}
+
+type character struct {
+	Name string
+	Color color.RGBA
+}
+
+var (
+	m = character{`Me`, color.RGBA{255, 0, 0, 255}}
+	s = character{`Sylvie`, color.RGBA{0, 255, 0, 255}}
+	d = character{``, color.RGBA{0, 255, 0, 0}}
+	messages = []dialogue{
+		{s, `Hi there! How was class?`}, 
+		{m, `Good...`}, 
+		{d, `I can't bring myself to admit that it all went in one ear and out the other.`},
+	}
+    mplusNormalFont font.Face
+    line = 0
+    bg *ebiten.Image
+)
+
+
+func init() {
+
+    f, err := ebitenutil.OpenFile("./mplus-1p-regular.ttf")
+    if err != nil {
+        log.Fatal(err)
+    }
+    defer f.Close()
+
+    b, err := ioutil.ReadAll(f)
+    if err != nil {
+        log.Fatal(err)
+    }
+
+    tt, err := truetype.Parse(b)
+    if err != nil {
+        log.Fatal(err)
+    }
+
+    const dpi = 72
+    mplusNormalFont = truetype.NewFace(tt, &truetype.Options{
+        Size:    24,
+        DPI:     dpi,
+        Hinting: font.HintingFull,
+    })
+}
+
+
+func update(screen *ebiten.Image) error {
+
+    if ebiten.IsRunningSlowly() {
+        return nil
+    }
+
+    for _, v := range ebiten.InputChars() {
+    	if v == 32 {
+    		if line+1 != len(messages) {
+    			line++
+    		}
+    	}
+    }
+
+    msg := fmt.Sprintf("FPS: %0.2f", ebiten.CurrentFPS())
+    const x = 20
+
+    op := &ebiten.DrawImageOptions{}
+
+    screen.DrawImage(bg, op)
+
+    ebitenutil.DrawRect(screen, 30, 350, screenWidth-60, 100, color.RGBA{128, 128, 128, 200})
+
+    text.Draw(screen, msg, mplusNormalFont, x, 40, color.White)
+    text.Draw(screen, messages[line].Speaker.Name, mplusNormalFont, 50, 370, messages[line].Speaker.Color)
+    text.Draw(screen, messages[line].Text, mplusNormalFont, 50, 400, color.White)
+    return nil
+}
+
+func main() {
+	var err error
+	bg, _, err = ebitenutil.NewImageFromFile("./bg.jpg", ebiten.FilterNearest)
+    if err != nil {
+        log.Fatal(err)
+    }
+    if err := ebiten.Run(update, screenWidth, screenHeight, 1, "Font (Ebiten Demo)"); err != nil {
+        log.Fatal(err)
+    }
+}