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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" >
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< title > Ebiten example - mosaic< / title >
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< link rel = "stylesheet" href = "../stylesheets/bootstrap.min.css" >
< link rel = "stylesheet" href = "../stylesheets/highlight-github.css" >
< link rel = "stylesheet" href = "../stylesheets/ebiten.css" >
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< script src = "../scripts/googleanalytics.js" > < / script >
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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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< nav class = "collapse navbar-collapse" >
< ul class = "nav navbar-nav navbar-right" >
< li > < a href = "https://github.com/hajimehoshi/ebiten" > GitHub< / a > < / li >
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< li > < a href = "https://godoc.org/github.com/hajimehoshi/ebiten" > GoDoc< / a > < / li >
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< li > < a href = "https://github.com/hajimehoshi/ebiten/wiki" > Wiki< / a >
< / ul >
< / nav >
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< / header >
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< main > < div class = "container" >
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< h2 > Ebiten example - mosaic< / h2 >
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< iframe src = "mosaic.content.html" width = "640" height = "480" > < / iframe >
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< pre > < code class = "language-go" > // + build example
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package main
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import (
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_ " image/jpeg"
" log"
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" github.com/hajimehoshi/ebiten"
" github.com/hajimehoshi/ebiten/ebitenutil"
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)
const (
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screenWidth = 320
screenHeight = 240
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)
const mosaicRatio = 16
var (
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gophersImage *ebiten.Image
gophersRenderTarget *ebiten.Image
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)
func update(screen *ebiten.Image) error {
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if ebiten.IsRunningSlowly() {
return nil
}
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op := & ebiten.DrawImageOptions{}
op.GeoM.Scale(1.0/mosaicRatio, 1.0/mosaicRatio)
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gophersRenderTarget.DrawImage(gophersImage, op)
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op = & ebiten.DrawImageOptions{}
op.GeoM.Scale(mosaicRatio, mosaicRatio)
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screen.DrawImage(gophersRenderTarget, op)
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return nil
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}
func main() {
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var err error
gophersImage, _, err = ebitenutil.NewImageFromFile(" _resources/images/gophers.jpg" , ebiten.FilterNearest)
if err != nil {
log.Fatal(err)
}
w, h := gophersImage.Size()
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gophersRenderTarget, _ = ebiten.NewImage(w/mosaicRatio, h/mosaicRatio, ebiten.FilterNearest)
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if err := ebiten.Run(update, screenWidth, screenHeight, 2, " Mosaic (Ebiten Demo)" ); 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 >
< / div > < / footer >
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< script src = "../scripts/highlight.pack.js" > < / script >
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< script > hljs . initHighlightingOnLoad ( ) ; < / script >
