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docs: Add examples/tiles
2018-02-05 19:59:10 +01:00
<!DOCTYPE html>
<meta charset="utf-8">
<meta property="og:image" itemprop="image primaryImageOfPage" content="https://hajimehoshi.github.io/ebiten/images/examples/tiles.png">
<meta name="description" content="Ebiten example - tiles">
<link rel="shortcut icon" href="../favicon.png" type="image/png" >
<link rel="icon" href="../favicon.png" type="image/png" >
<title>Ebiten example - tiles</title>
<link rel="stylesheet" href="../stylesheets/bootstrap.min.css">
<link rel="stylesheet" href="../stylesheets/highlight-github.css">
<link rel="stylesheet" href="../stylesheets/ebiten.css">
<script src="../scripts/googleanalytics.js"></script>
<nav class="navbar"><div class="container">
<nav class="d-flex flex-row" style="width: 100%;">
<div class="nav mr-auto"><a class="navbar-brand" href="../"><img src="../images/logo_white.svg" alt="EBITEN"></a></div>
<ul class="nav">
<li class="nav-item"><a class="nav-link" href="https://github.com/hajimehoshi/ebiten">GitHub</a></li>
<li class="nav-item"><a class="nav-link" href="https://godoc.org/github.com/hajimehoshi/ebiten">GoDoc</a></li>
<li class="nav-item"><a class="nav-link" href="https://github.com/hajimehoshi/ebiten/wiki">Wiki</a>
<li class="nav-item"><a class="nav-link" href="https://ebiten-playground.github.io/">Playground</a>
</ul>
</nav>
</div></nav>
<main><div class="container">
<h2>Ebiten example - tiles</h2>
<iframe src="tiles.content.html" width="480" height="480"></iframe>
<div class="card"><pre class="card-body"><code class="language-go">// &#43;build example
package main
import (
&#34;fmt&#34;
&#34;image&#34;
&#34;log&#34;
&#34;github.com/hajimehoshi/ebiten&#34;
&#34;github.com/hajimehoshi/ebiten/ebitenutil&#34;
)
const (
screenWidth = 240
screenHeight = 240
)
const (
tileSize = 16
tileXNum = 25
)
var (
tilesImage *ebiten.Image
)
func init() {
var err error
tilesImage, _, err = ebitenutil.NewImageFromFile(&#34;_resources/images/tiles.png&#34;, ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
}
var (
layers = [][]int{
{
243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243,
243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243,
243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243,
243, 218, 243, 243, 243, 243, 243, 243, 243, 243, 243, 218, 243, 244, 243,
243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243,
243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243,
243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243,
243, 243, 244, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243,
243, 243, 243, 243, 243, 243, 243, 243, 243, 219, 243, 243, 243, 219, 243,
243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243,
243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243,
243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243,
243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243,
243, 218, 243, 243, 243, 243, 243, 243, 243, 243, 243, 244, 243, 243, 243,
243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243, 243,
},
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 26, 27, 28, 29, 30, 31, 0, 0, 0, 0,
0, 0, 0, 0, 0, 51, 52, 53, 54, 55, 56, 0, 0, 0, 0,
0, 0, 0, 0, 0, 76, 77, 78, 79, 80, 81, 0, 0, 0, 0,
0, 0, 0, 0, 0, 101, 102, 103, 104, 105, 106, 0, 0, 0, 0,
0, 0, 0, 0, 0, 126, 127, 128, 129, 130, 131, 0, 0, 0, 0,
0, 0, 0, 0, 0, 303, 303, 245, 242, 303, 303, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 245, 242, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 245, 242, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 245, 242, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 245, 242, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 245, 242, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 245, 242, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 245, 242, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 245, 242, 0, 0, 0, 0, 0, 0,
},
}
)
func update(screen *ebiten.Image) error {
if ebiten.IsRunningSlowly() {
return nil
}
// Draw each tile with each DrawImage call.
// As the source images of all DrawImage calls are always same,
// this rendering is done very effectively.
// For more detail, see https://godoc.org/github.com/hajimehoshi/ebiten#Image.DrawImage
const xNum = screenWidth / tileSize
for _, l := range layers {
for i, t := range l {
op := &amp;ebiten.DrawImageOptions{}
op.GeoM.Translate(float64((i%xNum)*tileSize), float64((i/xNum)*tileSize))
sx := (t % tileXNum) * tileSize
sy := (t / tileXNum) * tileSize
r := image.Rect(sx, sy, sx&#43;tileSize, sy&#43;tileSize)
op.SourceRect = &amp;r
screen.DrawImage(tilesImage, op)
}
}
ebitenutil.DebugPrint(screen, fmt.Sprintf(&#34;FPS: %0.2f&#34;, ebiten.CurrentFPS()))
return nil
}
func main() {
if err := ebiten.Run(update, screenWidth, screenHeight, 2, &#34;Tiles (Ebiten Demo)&#34;); err != nil {
log.Fatal(err)
}
}
</code></pre></div>
</div></main>
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<p>© 2013 Hajime Hoshi</p>
<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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