mirror of
https://github.com/hajimehoshi/ebiten.git
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327 lines
8.2 KiB
HTML
327 lines
8.2 KiB
HTML
<!DOCTYPE html>
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<!--
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Copyright 2015 Hajime Hoshi
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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-->
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<link rel="shortcut icon" href="./favicon.png" type="image/png" >
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<link rel="icon" href="./favicon.png" type="image/png" >
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<title>Ebiten - A simple SNES-like 2D game library in Go</title>
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<style>
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body {
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font-family: sans-serif;
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}
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table.examples td {
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vertical-align: top;
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}
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table.examples td.code {
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border-color: #999;
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border-style: solid;
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border-width: 1px;
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}
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table.examples td.code pre {
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height: 240px;
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overflow: auto;
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}
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</style>
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<h1>Ebiten (海老天)</h1>
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<p>v1.1.0-alpha</p>
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<ul>
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<li>A simple SNES-like 2D game library in Go</li>
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<li>Works on
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<ul>
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<li>HTML5 (powered by <a href="http://gopherjs.org/">GopherJS</a>)
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<li>Mac OS X</li>
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<li>Linux (maybe)</li>
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<li>Windows (possibly)</li>
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</ul>
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</li>
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<li><a href="http://godoc.org/github.com/hajimehoshi/ebiten">API Docs</a></li>
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<li><a href="http://github.com/hajimehoshi/ebiten">Source Code</a> (Development version: v1.1.0-alpha)</li>
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</ul>
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<h2>Features</h2>
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<ul>
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<li>2D Graphics</li>
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<li>Input (Mouse, Keyboard)</li>
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</ul>
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<h2>Example</h2>
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<table class="examples">
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<tr>
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<td class="code"><pre><code>// <b>blocks</b>
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// Please read example/blocks/main.go and example/blocks/blocks/*.go</code></pre></td>
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<td><img src="blocks.gif" width="256" height="240"></td>
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</tr>
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<tr>
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<td class="code"><pre><code>// <b>hue</b>
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package main
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import (
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"github.com/hajimehoshi/ebiten"
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"github.com/hajimehoshi/ebiten/ebitenutil"
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_ "image/jpeg"
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"log"
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"math"
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)
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const (
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screenWidth = 320
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screenHeight = 240
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)
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var (
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count int
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gophersImage *ebiten.Image
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)
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func update(screen *ebiten.Image) error {
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count++
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w, h := gophersImage.Size()
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op := &ebiten.DrawImageOptions{}
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op.GeoM.Translate(float64(screenWidth-w)/2, float64(screenHeight-h)/2)
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op.ColorM.Concat(ebiten.RotateHue(float64(count%360) * 2 * math.Pi / 360))
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if err := screen.DrawImage(gophersImage, op); err != nil {
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return err
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}
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return nil
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}
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func main() {
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var err error
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gophersImage, _, err = ebitenutil.NewImageFromFile("images/gophers.jpg", ebiten.FilterNearest)
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if err != nil {
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log.Fatal(err)
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}
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if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Hue (Ebiten Demo)"); err != nil {
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log.Fatal(err)
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}
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}
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</code></pre></td>
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<td><img src="hue.gif" width="320" height="240"></td>
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</tr>
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<tr>
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<td class="code"><pre><code>// <b>mosaic</b>
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package main
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import (
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"github.com/hajimehoshi/ebiten"
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"github.com/hajimehoshi/ebiten/ebitenutil"
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_ "image/jpeg"
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"log"
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)
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const (
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screenWidth = 320
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screenHeight = 240
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)
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const mosaicRatio = 16
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var (
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gophersImage *ebiten.Image
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gophersRenderTarget *ebiten.Image
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)
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func update(screen *ebiten.Image) error {
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op := &ebiten.DrawImageOptions{}
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op.GeoM.Scale(1.0/mosaicRatio, 1.0/mosaicRatio)
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gophersRenderTarget.DrawImage(gophersImage, op)
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op = &ebiten.DrawImageOptions{}
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op.GeoM.Scale(mosaicRatio, mosaicRatio)
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screen.DrawImage(gophersRenderTarget, op)
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return nil
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}
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func main() {
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var err error
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gophersImage, _, err = ebitenutil.NewImageFromFile("images/gophers.jpg", ebiten.FilterNearest)
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if err != nil {
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log.Fatal(err)
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}
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w, h := gophersImage.Size()
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gophersRenderTarget, err = ebiten.NewImage(w/mosaicRatio, h/mosaicRatio, ebiten.FilterNearest)
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if err != nil {
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log.Fatal(err)
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}
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if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Mosaic (Ebiten Demo)"); err != nil {
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log.Fatal(err)
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}
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}
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</code></pre></td>
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<td><img src="mosaic.gif" width="320" height="240"></td>
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</tr>
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<tr>
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<td class="code"><pre><code>// <b>perspective</b>
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package main
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import (
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"github.com/hajimehoshi/ebiten"
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"github.com/hajimehoshi/ebiten/ebitenutil"
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_ "image/jpeg"
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"log"
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)
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const (
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screenWidth = 320
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screenHeight = 240
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)
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var (
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gophersImage *ebiten.Image
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)
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type parts struct {
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image *ebiten.Image
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}
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func (p parts) Len() int {
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_, h := p.image.Size()
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return h
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}
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func (p parts) Dst(i int) (x0, y0, x1, y1 int) {
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w, h := p.image.Size()
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width := w + i*3/4
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x := ((h - i) * 3 / 4) / 2
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return x, i, x + width, i + 1
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}
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func (p parts) Src(i int) (x0, y0, x1, y1 int) {
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w, _ := p.image.Size()
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return 0, i, w, i + 1
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}
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func update(screen *ebiten.Image) error {
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op := &ebiten.DrawImageOptions{
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ImageParts: &parts{gophersImage},
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}
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w, h := gophersImage.Size()
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maxWidth := float64(w) + float64(h)*0.75
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op.GeoM.Translate(-maxWidth/2, -float64(h)/2)
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op.GeoM.Translate(screenWidth/2, screenHeight/2)
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screen.DrawImage(gophersImage, op)
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return nil
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}
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func main() {
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var err error
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gophersImage, _, err = ebitenutil.NewImageFromFile("images/gophers.jpg", ebiten.FilterNearest)
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if err != nil {
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log.Fatal(err)
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}
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if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Perspective (Ebiten Demo)"); err != nil {
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log.Fatal(err)
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}
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}
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</code></pre></td>
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<td><img src="perspective.gif" width="320" height="240"></td>
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</tr>
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<tr>
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<td class="code"><pre><code>// <b>rotate</b>
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package main
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import (
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"github.com/hajimehoshi/ebiten"
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"github.com/hajimehoshi/ebiten/ebitenutil"
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_ "image/jpeg"
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"log"
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"math"
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)
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const (
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screenWidth = 320
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screenHeight = 240
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)
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var (
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count int
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gophersImage *ebiten.Image
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)
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func update(screen *ebiten.Image) error {
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count++
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w, h := gophersImage.Size()
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op := &ebiten.DrawImageOptions{}
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op.GeoM.Translate(-float64(w)/2, -float64(h)/2)
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op.GeoM.Rotate(float64(count%360) * 2 * math.Pi / 360)
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op.GeoM.Translate(screenWidth/2, screenHeight/2)
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if err := screen.DrawImage(gophersImage, op); err != nil {
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return err
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}
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return nil
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}
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func main() {
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var err error
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gophersImage, _, err = ebitenutil.NewImageFromFile("images/gophers.jpg", ebiten.FilterNearest)
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if err != nil {
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log.Fatal(err)
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}
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if err := ebiten.Run(update, screenWidth, screenHeight, 2, "Rotate (Ebiten Demo)"); err != nil {
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log.Fatal(err)
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}
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}
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</code></pre></td>
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<td><img src="rotate.gif" width="320" height="240"></td>
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</tr>
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</table>
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<h2>Install on Mac OS X</h2>
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<pre><code>:; brew install glew
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:; brew install glfw3 # or homebrew/versions/glfw3
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:; go get -u github.com/hajimehoshi/ebiten</code></pre>
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<p>If you want to use GopherJS, execute this:</p>
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<pre><code>:; go get -u -tag=js github.com/hajimehoshi/ebiten</code></pre>
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<h2>Execute the example</h2>
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<pre><code>:; cd $GOHOME/src/github.com/hajimehoshi/ebiten/example
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:; go run rotate/main.go</code></pre>
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<h2>Execute the example on your browser</h2>
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<pre><code>:; go get github.com/gopherjs/gopherjs
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:; go run $GOPATH/src/github.com/hajimehoshi/ebiten/example/server/main.go</code></pre>
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<p>Then, open <code>localhost:8000</code> on your browser.</p>
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<p><code>localhost:8000/?EXAMPLE_NAME</code> shows other examples (e.g. <code>localhost:8000/?rotate</code>).</p>
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<h2>License</h2>
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<h3>Ebiten</h3>
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<pre>Copyright 2015 Hajime Hoshi
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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</pre>
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<h3>Go Gopher photograph</h3>
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<p><a href="http://blog.golang.org/go-programming-language-turns-two">The original photograph of Go gophers by Chris Nokleberg</a> is licensed under the Creative Commons 3.0 Attributions license.</p>
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