example/sprite: delete
Andrew's new example/flappy does a better job of demoing off these
packages, and I would like to keep our example count under contorl.
Change-Id: I77f4da78815055ab91510ce0cb97bbd7ac1bac3b
Reviewed-on: https://go-review.googlesource.com/18381
Reviewed-by: Andrew Gerrand <adg@golang.org>
diff --git a/example/sprite/assets/waza-gophers.jpeg b/example/sprite/assets/waza-gophers.jpeg
deleted file mode 100644
index 17db10f..0000000
--- a/example/sprite/assets/waza-gophers.jpeg
+++ /dev/null
Binary files differ
diff --git a/example/sprite/main.go b/example/sprite/main.go
deleted file mode 100644
index e85c3c0..0000000
--- a/example/sprite/main.go
+++ /dev/null
@@ -1,201 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build darwin linux windows
-
-// An app that demonstrates the sprite package.
-//
-// Note: This demo is an early preview of Go 1.5. In order to build this
-// program as an Android APK using the gomobile tool.
-//
-// See http://godoc.org/golang.org/x/mobile/cmd/gomobile to install gomobile.
-//
-// Get the sprite example and use gomobile to build or install it on your device.
-//
-// $ go get -d golang.org/x/mobile/example/sprite
-// $ gomobile build golang.org/x/mobile/example/sprite # will build an APK
-//
-// # plug your Android device to your computer or start an Android emulator.
-// # if you have adb installed on your machine, use gomobile install to
-// # build and deploy the APK to an Android target.
-// $ gomobile install golang.org/x/mobile/example/sprite
-//
-// Switch to your device or emulator to start the Basic application from
-// the launcher.
-// You can also run the application on your desktop by running the command
-// below. (Note: It currently doesn't work on Windows.)
-// $ go install golang.org/x/mobile/example/sprite && sprite
-package main
-
-import (
- "image"
- "log"
- "math"
- "time"
-
- _ "image/jpeg"
-
- "golang.org/x/mobile/app"
- "golang.org/x/mobile/asset"
- "golang.org/x/mobile/event/lifecycle"
- "golang.org/x/mobile/event/paint"
- "golang.org/x/mobile/event/size"
- "golang.org/x/mobile/exp/app/debug"
- "golang.org/x/mobile/exp/f32"
- "golang.org/x/mobile/exp/gl/glutil"
- "golang.org/x/mobile/exp/sprite"
- "golang.org/x/mobile/exp/sprite/clock"
- "golang.org/x/mobile/exp/sprite/glsprite"
- "golang.org/x/mobile/gl"
-)
-
-var (
- startTime = time.Now()
- images *glutil.Images
- eng sprite.Engine
- scene *sprite.Node
- fps *debug.FPS
-)
-
-func main() {
- app.Main(func(a app.App) {
- var glctx gl.Context
- var sz size.Event
- for e := range a.Events() {
- switch e := a.Filter(e).(type) {
- case lifecycle.Event:
- switch e.Crosses(lifecycle.StageVisible) {
- case lifecycle.CrossOn:
- glctx, _ = e.DrawContext.(gl.Context)
- onStart(glctx)
- a.Send(paint.Event{})
- case lifecycle.CrossOff:
- onStop()
- glctx = nil
- }
- case size.Event:
- sz = e
- case paint.Event:
- if glctx == nil || e.External {
- continue
- }
- onPaint(glctx, sz)
- a.Publish()
- a.Send(paint.Event{}) // keep animating
- }
- }
- })
-}
-
-func onStart(glctx gl.Context) {
- images = glutil.NewImages(glctx)
- fps = debug.NewFPS(images)
- eng = glsprite.Engine(images)
- loadScene()
-}
-
-func onStop() {
- eng.Release()
- fps.Release()
- images.Release()
-}
-
-func onPaint(glctx gl.Context, sz size.Event) {
- glctx.ClearColor(1, 1, 1, 1)
- glctx.Clear(gl.COLOR_BUFFER_BIT)
- now := clock.Time(time.Since(startTime) * 60 / time.Second)
- eng.Render(scene, now, sz)
- fps.Draw(sz)
-}
-
-func newNode() *sprite.Node {
- n := &sprite.Node{}
- eng.Register(n)
- scene.AppendChild(n)
- return n
-}
-
-func loadScene() {
- texs := loadTextures()
- scene = &sprite.Node{}
- eng.Register(scene)
- eng.SetTransform(scene, f32.Affine{
- {1, 0, 0},
- {0, 1, 0},
- })
-
- var n *sprite.Node
-
- n = newNode()
- eng.SetSubTex(n, texs[texBooks])
- eng.SetTransform(n, f32.Affine{
- {36, 0, 0},
- {0, 36, 0},
- })
-
- n = newNode()
- eng.SetSubTex(n, texs[texFire])
- eng.SetTransform(n, f32.Affine{
- {72, 0, 144},
- {0, 72, 144},
- })
-
- n = newNode()
- n.Arranger = arrangerFunc(func(eng sprite.Engine, n *sprite.Node, t clock.Time) {
- // TODO: use a tweening library instead of manually arranging.
- t0 := uint32(t) % 120
- if t0 < 60 {
- eng.SetSubTex(n, texs[texGopherR])
- } else {
- eng.SetSubTex(n, texs[texGopherL])
- }
-
- u := float32(t0) / 120
- u = (1 - f32.Cos(u*2*math.Pi)) / 2
-
- tx := 18 + u*48
- ty := 36 + u*108
- sx := 36 + u*36
- sy := 36 + u*36
- eng.SetTransform(n, f32.Affine{
- {sx, 0, tx},
- {0, sy, ty},
- })
- })
-}
-
-const (
- texBooks = iota
- texFire
- texGopherR
- texGopherL
-)
-
-func loadTextures() []sprite.SubTex {
- a, err := asset.Open("waza-gophers.jpeg")
- if err != nil {
- log.Fatal(err)
- }
- defer a.Close()
-
- img, _, err := image.Decode(a)
- if err != nil {
- log.Fatal(err)
- }
- t, err := eng.LoadTexture(img)
- if err != nil {
- log.Fatal(err)
- }
-
- return []sprite.SubTex{
- texBooks: sprite.SubTex{t, image.Rect(4, 71, 132, 182)},
- texFire: sprite.SubTex{t, image.Rect(330, 56, 440, 155)},
- texGopherR: sprite.SubTex{t, image.Rect(152, 10, 152+140, 10+90)},
- texGopherL: sprite.SubTex{t, image.Rect(162, 120, 162+140, 120+90)},
- }
-}
-
-type arrangerFunc func(e sprite.Engine, n *sprite.Node, t clock.Time)
-
-func (a arrangerFunc) Arrange(e sprite.Engine, n *sprite.Node, t clock.Time) { a(e, n, t) }
diff --git a/example/sprite/main_x.go b/example/sprite/main_x.go
deleted file mode 100644
index 6b8c13f..0000000
--- a/example/sprite/main_x.go
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright 2014 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// +build !darwin,!linux,!windows
-
-package main
-
-func main() {
-}
