ebiten/docs/examples/font.html

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<!DOCTYPE html>
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<script src="../scripts/force-https.js"></script>
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<link rel="shortcut icon" href="../favicon.png" type="image/png" >
<link rel="icon" href="../favicon.png" type="image/png" >
<title>Ebiten example - font</title>
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<link rel="stylesheet" href="../stylesheets/bootstrap.min.css">
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<header class="navbar"><div class="container">
<div class="navbar-header">
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<a class="navbar-brand" href="..">Ebiten</a>
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</div>
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<li><a href="https://github.com/hajimehoshi/ebiten">GitHub</a></li>
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</header>
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<main><div class="container">
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<h2>Ebiten example - font</h2>
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<iframe src="font.content.html" width="640" height="480"></iframe>
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<pre><code class="language-go">// &#43;build example
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package main
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import (
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&#34;image&#34;
&#34;io/ioutil&#34;
&#34;log&#34;
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&#34;github.com/golang/freetype/truetype&#34;
&#34;github.com/hajimehoshi/ebiten&#34;
&#34;github.com/hajimehoshi/ebiten/ebitenutil&#34;
&#34;golang.org/x/image/font&#34;
&#34;golang.org/x/image/math/fixed&#34;
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)
const (
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screenWidth = 640
screenHeight = 480
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)
var (
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textImage *ebiten.Image
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)
var text = []string{
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&#34;The quick brown fox jumps over the lazy dog.&#34;,
&#34;&#34;,
// A head part of a Japanese novel 山月記 (Sangetsuki)
// See http://www.aozora.gr.jp/cards/000119/files/624_14544.html.
&#34;隴西の李徴は博学才穎、天宝の末年、&#34;,
&#34;若くして名を虎榜に連ね、&#34;,
&#34;ついで江南尉に補せられたが、&#34;,
&#34;性、狷介、自ら恃むところ頗厚く、&#34;,
&#34;賤吏に甘んずるを潔しとしなかった。&#34;,
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}
func parseFont() error {
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f, err := ebitenutil.OpenFile(&#34;_resources/fonts/mplus-1p-regular.ttf&#34;)
if err != nil {
return err
}
defer func() {
_ = f.Close()
}()
b, err := ioutil.ReadAll(f)
if err != nil {
return err
}
tt, err := truetype.Parse(b)
if err != nil {
return err
}
w, h := textImage.Size()
dst := image.NewRGBA(image.Rect(0, 0, w, h))
const size = 24
const dpi = 72
d := &amp;font.Drawer{
Dst: dst,
Src: image.White,
Face: truetype.NewFace(tt, &amp;truetype.Options{
Size: size,
DPI: dpi,
Hinting: font.HintingFull,
}),
}
y := size
for _, s := range text {
d.Dot = fixed.P(0, y)
d.DrawString(s)
y &#43;= size
}
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textImage.ReplacePixels(dst.Pix)
return nil
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}
func update(screen *ebiten.Image) error {
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if ebiten.IsRunningSlowly() {
return nil
}
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screen.DrawImage(textImage, &amp;ebiten.DrawImageOptions{})
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return nil
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}
func main() {
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textImage, _ = ebiten.NewImage(screenWidth, screenHeight, ebiten.FilterNearest)
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if err := parseFont(); err != nil {
log.Fatal(err)
}
if err := ebiten.Run(update, screenWidth, screenHeight, 1, &#34;Font (Ebiten Demo)&#34;); err != nil {
log.Fatal(err)
}
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}
</code></pre>
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</div></main>
<footer><div class="container">
<p>© 2013 Hajime Hoshi</p>
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<p>Code is licensed under <a href="https://github.com/hajimehoshi/ebiten/blob/master/LICENSE">the Apache License 2.0</a>.</p>
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<p>The content of this page is licensed under <a href="https://creativecommons.org/licenses/by/4.0/">the Creative Commons Attribution 4.0 License</a>.</p>
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