ebiten/docs/examples/typewriter.html

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<!DOCTYPE html>
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<meta name="description" content="Ebiten example - typewriter">
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<title>Ebiten example - typewriter</title>
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<h2>Ebiten example - typewriter</h2>
<iframe src="typewriter.content.html" width="640" height="480"></iframe>
<div class="card"><pre class="card-body"><code class="language-go">// &#43;build example
package main
import (
&#34;log&#34;
&#34;strings&#34;
&#34;github.com/hajimehoshi/ebiten&#34;
&#34;github.com/hajimehoshi/ebiten/ebitenutil&#34;
)
var (
text = &#34;Type on the keyboard:\n&#34;
counter = 0
bsPrevPressed = false
)
func update(screen *ebiten.Image) error {
text &#43;= string(ebiten.InputChars())
ss := strings.Split(text, &#34;\n&#34;)
if len(ss) &gt; 10 {
text = strings.Join(ss[len(ss)-10:], &#34;\n&#34;)
}
if ebiten.IsKeyPressed(ebiten.KeyEnter) &amp;&amp; !strings.HasSuffix(text, &#34;\n&#34;) {
text &#43;= &#34;\n&#34;
}
bsPressed := ebiten.IsKeyPressed(ebiten.KeyBackspace)
if !bsPrevPressed &amp;&amp; bsPressed {
if len(text) &gt;= 1 {
text = text[:len(text)-1]
}
}
bsPrevPressed = bsPressed
counter&#43;&#43;
if ebiten.IsRunningSlowly() {
return nil
}
t := text
if counter%60 &lt; 30 {
t &#43;= &#34;_&#34;
}
ebitenutil.DebugPrint(screen, t)
return nil
}
func main() {
if err := ebiten.Run(update, 320, 240, 2.0, &#34;Typewriter (Ebiten Demo)&#34;); err != nil {
log.Fatal(err)
}
}
</code></pre></div>
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2017-11-09 17:48:01 +01:00