example: Add example tags

examples/2048/2048/board.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package twenty48
 
 import (

examples/2048/2048/colors.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package twenty48
 
 import (

examples/2048/2048/game.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package twenty48
 
 import (

examples/2048/2048/input.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package twenty48
 
 import (

examples/2048/2048/tile.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package twenty48
 
 import (

examples/2048/2048/tile_test.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package twenty48_test
 
 import (

examples/blocks/blocks/field.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package blocks
 
 import (

examples/blocks/blocks/font.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package blocks
 
 import (

examples/blocks/blocks/game.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package blocks
 
 import (

examples/blocks/blocks/gamepad.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package blocks
 
 import (

examples/blocks/blocks/gamescene.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package blocks
 
 import (

examples/blocks/blocks/input.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package blocks
 
 import (

examples/blocks/blocks/piece.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package blocks
 
 import (

examples/blocks/blocks/scenemanager.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package blocks
 
 import (

examples/blocks/blocks/titlescene.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package blocks
 
 import (

examples/common/font.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build example
+
 package common
 
 import (

examples/common/internal/assets/assets.go

@@ -12,7 +12,9 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-//go:generate go-bindata -nocompress -pkg=assets arcadefont.png
+// +build example
+
+//go:generate go-bindata -nocompress -pkg=assets -tags=example arcadefont.png
 //go:generate gofmt -s -w .
 
 package assets

examples/common/internal/assets/bindata.go

@@ -1,10 +1,16 @@
+// Code generated by go-bindata.
+// sources:
+// arcadefont.png
+// DO NOT EDIT!
+
+// +build example
+
 package assets
 
 import (
 	"fmt"
 	"io/ioutil"
 	"os"
-	"path"
 	"path/filepath"
 	"strings"
 	"time"
@@ -15,45 +21,45 @@ type asset struct {
 	info  os.FileInfo
 }
 
-type bindata_file_info struct {
+type bindataFileInfo struct {
 	name    string
 	size    int64
 	mode    os.FileMode
 	modTime time.Time
 }
 
-func (fi bindata_file_info) Name() string {
+func (fi bindataFileInfo) Name() string {
 	return fi.name
 }
-func (fi bindata_file_info) Size() int64 {
+func (fi bindataFileInfo) Size() int64 {
 	return fi.size
 }
-func (fi bindata_file_info) Mode() os.FileMode {
+func (fi bindataFileInfo) Mode() os.FileMode {
 	return fi.mode
 }
-func (fi bindata_file_info) ModTime() time.Time {
+func (fi bindataFileInfo) ModTime() time.Time {
 	return fi.modTime
 }
-func (fi bindata_file_info) IsDir() bool {
+func (fi bindataFileInfo) IsDir() bool {
 	return false
 }
-func (fi bindata_file_info) Sys() interface{} {
+func (fi bindataFileInfo) Sys() interface{} {
 	return nil
 }
 
-var _arcadefont_png = []byte("\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x80\x00\x00\x000\b\x03\x00\x00\x00\xee*\x82\x8c\x00\x00\x00\x06PLTE\x00\x00\x00\xff\xff\xff\xa5ٟ\xdd\x00\x00\x00\x01tRNS\x00@\xe6\xd8f\x00\x00\x03\x98IDATx\x9c\xc4X\x89\x96\xac(\f\xe5\xd6\xf3\xff\u007f9\xd3B\x96\x9b\x18ѩ\xe99/ݥ\x82\x81\xec\v~F\x00\xa0\xd7\xf5\x10\xf3t=\xdf#\xe1\xdbCY\xf4\x0e0>\xbb\x97F\xf9\xdc{\x8e\xe6\xbf\b*\xa2\xfc\\%X,\xf7\r\ti\x18\x90\xf9\xbf(bm#sNN|\xdeW\x98\xbes\x80W\xa4\x8d~B];\xc1\t\x89\x13\x14ǧ\xa1\x8e\x9d\x01{P\x04\x10\x8f\xa3\x19\xfbz\x9a@\x1e\x99\xb5\xf5\x0e\xffG\xc2,>\x01\xb2]\xb7o\xe6(\x99@\x12G2\xff\xd6rӌ\x8b!\t\xd1\xe8\x89\tYE\xeb\x04\xbd\xc8\u007f\xef\xc7H\x174a\xf2\x10\x05\xd5i\xff\x85\x9b\xfc\nli\x81\x9d,9\xcfZ\xa63\x92\x87\x11s\xa2\xc3\xceɈ\x884\x83\xb5\xf0ϴm(y\xbd\a*G\x8d\xaf\x8b\xe5\x05\xba[*\x1b\xe9^\x9c?6\xfcy<&\x1f8=B\xc02\x12}\x01q\x1cQOq\xbb\x85\x88N\xf5\xd0I\xcd\xe5Q\t$cJ\"\xc8҇)HA\xc1u\xe3\xda\xd79\x90͏f\xc1\xf0x\x82\xe5*\x962\xe6]A\xb0\x90\xbd\xec\xef\x02\x93\x8f\xa4\xf7\x87\xaa\x9f\xe9',SM#Hp\xd4\x1b\xdb^'\x95\x13\x96\xf1\x85\xa4\xc2\xe4\xdd\xccj\x8a\x8eb1\x9b/\xf4!\rc1\xd8\xc8\xf4;\xf0*׀\x95~\t\u007fR\x84i\xc65\xa4o܉\xd9\t\x91\xe69l\v\xfe\xe9\x84ӟ\xf4\xa5\x19\vP\xf7_\xfe\x91\x8d\xd8\xe9u\x8c\xceM\xf2\x04,\x9c\x89!\xc8g\xe6!wd\xe4Œ*\xfdf\xf3\x16*Jۨ\x1c\xc1\x19\xe3u\x9b\xe7\xfc\xa03ro\xea{\x16\x91\x198ŧ\xfc\xe7q^\xa1\x98`P\xee\xbc+\xa3\xb9\xbe\xab\xa4Y\xde\xcf\xe9\x15K\xd3\"\x97*\x0f\xdc\xcaҙe\xe2rdž\a\tƩ\x01A\xed\x94\x16\x8e\x00T\fǥ\xdcI\xd3;ώ5R)\xa9\xb6\xe8\u0096\xffω\xe0\r\x1c\x1e\xbe*`\x1a\xa7\f\x99㸉k\x89b\x15\x1b \xf2^nn\x15>\xcb\xf63\fE\xbb\v\x1f\xeb\xb0v\x8b\x05\x90L-\xe4J\"\xe4r\"-\xfe\xe6`\xf2@7U\x81\xeaD\\<kG\x98\xfd\xb7e@\x95\x87\xbeϤ\x13\x93r\xa0? 9\xed\r\a?R\xb1`\a\x19\aI\x80\xb9\xd75\x1f̤\x99\xab\x9bZUz\xfa3\x01t\x82,\xf8\x90\xd5\xc4)c\xdcw\xd9Q\x16.%l\xb4\xf4\xafV(\fؾ\x00\xa7\xb6i\x02\x0e{\x1f\x8b\xd3\xcf\xf7\xe0!\x8eT\xc4\xc1\xf6|\xf4\x17\x80*S)\x9aMv\xaa}un\xe1\xae\rNid\xb7\xf9\xee\xcf(\xca\xe9TRs\xae<\xe0\xe7\xf9\xbd\x92Ϯ\xd8k+\xbbUɄ>\xc6(=\xe2(%\x83\x9e\x904\xb5\xf0y\xd9y\x8f<`\x89P3 \xf8>bl\x89\x11\x1e\xcd\"\xa5\xdc\\m\xa2\xb3\x9eZi\xffc\xa7\xa9\xbe\xa1y\v\xef\x9aރ\xd1+\x89\x8b\b<z\xf1Q\xea\xe9\xd0vB\xce\x03k\x19T]q\x1fMj\x16\xb9(\bcېd\x01\xfcT\xf8-<\xb5\x8e\xbf\a_}\x00\xe4\x95\xd8m\xb3-\xc7\xff\x11\xaa\v\xb5\x1c\x1c).s\x97㫨\xe1I?\xc3\xcd?\xdb\xf0\x15[\xb3-\x8f\x83\x90\xa2p^ٞ\x8b\a\xf5\xae.\xe8\xe0\xc3XƔ\xa1\x9f!#>:\x13\x88m\xf4`|\x17\xb6\x86\x83U\xc9.\x85\xcb\xf0/\x06\xc6@\x0e\xb7`\xa3\x8f\x11o|\xac#BtP\x89\xfe\x068\x80\x81Z\xd9\xea'\x9d\xd4s\xc8`\r'\u007f\x18\xe3\xe2\x03\x86\xd9Z䖁o\xe1\xcb\xf8\xff'\x00\x00\xff\xff\"\xd9\xedҰ\xcb\xea\x95\x00\x00\x00\x00IEND\xaeB`\x82")
+var _arcadefontPng = []byte("\x89PNG\r\n\x1a\n\x00\x00\x00\rIHDR\x00\x00\x00\x80\x00\x00\x000\b\x03\x00\x00\x00\xee*\x82\x8c\x00\x00\x00\x06PLTE\x00\x00\x00\xff\xff\xff\xa5\u065f\xdd\x00\x00\x00\x01tRNS\x00@\xe6\xd8f\x00\x00\x03\x98IDATx\x9c\xc4X\x89\x96\xac(\f\xe5\xd6\xf3\xff\u007f9\xd3B\x96\x9b\x18\u0469\xe99/\u0765\x82\x81\xec\v~F\x00\xa0\xd7\xf5\x10\xf3t=\xdf#\xe1\xdbCY\xf4\x0e0>\xbb\x97F\xf9\xdc{\x8e\xe6\xbf\b*\xa2\xfc\\%X,\xf7\r\ti\x18\x90\xf9\xbf(bm#sNN|\xdeW\x98\xbes\x80W\xa4\x8d~B];\xc1\t\x89\x13\x14\u01e7\xa1\x8e\x9d\x01{P\x04\x10\x8f\xa3\x19\xfbz\x9a@\x1e\x99\xb5\xf5\x0e\xffG\xc2,>\x01\xb2]\xb7o\xe6(\x99@\x12G2\xff\xd6r\u04cc\x8b!\t\xd1\xe8\x89\tYE\xeb\x04\xbd\xc8\u007f\xef\xc7H\x174a\xf2\x10\x05\xd5i\xff\x85\x9b\xfc\nli\x81\x9d,9\xcfZ\xa63\x92\x87\x11s\xa2\xc3\xce\u0248\x884\x83\xb5\xf0\u03f4m(y\xbd\a*G\x8d\xaf\x8b\xe5\x05\xba[*\x1b\xe9^\x9c?6\xfcy<&\x1f8=B\xc02\x12}\x01q\x1cQOq\xbb\x85\x88N\xf5\xd0I\xcd\xe5Q\t$cJ\"\xc8\u0487)HA\xc1u\xe3\xda\xd79\x90\u034ff\xc1\xf0x\x82\xe5*\x962\xe6]A\xb0\x90\xbd\xec\xef\x02\x93\x8f\xa4\xf7\x87\xaa\x9f\xe9',SM#Hp\xd4\x1b\xdb^'\x95\x13\x96\xf1\x85\xa4\xc2\xe4\xdd\xccj\x8a\x8eb1\x9b/\xf4!\rc1\xd8\xc8\xf4;\xf0*\u05c0\x95~\t\u007fR\x84i\xc65\xa4o\u0709\xd9\t\x91\xe69l\v\xfe\xe9\x84\u04df\xf4\xa5\x19\vP\xf7_\xfe\x91\x8d\xd8\xe9u\x8c\xceM\xf2\x04,\x9c\x89!\xc8g\xe6!wd\xe4\u0152*\xfdf\xf3\x16*J\u06e8\x1c\xc1\x19\xe3u\x9b\xe7\xfc\xa03ro\xea{\x16\x91\x198\u0167\xfc\xe7q^\xa1\x98`P\xee\xbc+\xa3\xb9\xbe\xab\xa4Y\xde\xcf\xe9\x15K\xd3\"\x97*\x0f\xdc\xca\u0499e\xe2r\u01c6\a\t\u01a9\x01A\xed\x94\x16\x8e\x00T\f\u01e5\xdcI\xd3;\u03ce5R)\xa9\xb6\xe8\u0096\xff\u03c9\xe0\r\x1c\x1e\xbe*`\x1a\xa7\f\x99\u3e09k\x89b\x15\x1b \xf2^nn\x15>\xcb\xf63\fE\xbb\v\x1f\xeb\xb0v\x8b\x05\x90L-\xe4J\"\xe4r\"-\xfe\xe6`\xf2@7U\x81\xeaD\\<kG\x98\xfd\xb7e@\x95\x87\xbe\u03e4\x13\x93r\xa0? 9\xed\r\a?R\xb1`\a\x19\aI\x80\xb9\xd75\x1f\u0324\x99\xab\x9bZUz\xfa3\x01t\x82,\xf8\x90\xd5\xc4)c\xdcw\xd9Q\x16.%l\xb4\xf4\xafV(\f\u063e\x00\xa7\xb6i\x02\x0e{\x1f\x8b\xd3\xcf\xf7\xe0!\x8eT\xc4\xc1\xf6|\xf4\x17\x80*S)\x9aMv\xaa}un\xe1\xae\rNid\xb7\xf9\xee\xcf(\xca\xe9TRs\xae<\xe0\xe7\xf9\xbd\x92\u03ee\xd8k+\xbbU\u0244>\xc6(=\xe2(%\x83\x9e\x904\xb5\xf0y\xd9y\x8f<`\x89P3 \xf8>bl\x89\x11\x1e\xcd\"\xa5\xdc\\m\xa2\xb3\x9eZi\xffc\xa7\xa9\xbe\xa1y\v\xef\x9a\u0783\xd1+\x89\x8b\b<z\xf1Q\xea\xe9\xd0vB\xce\x03k\x19T]q\x1fMj\x16\xb9(\bc\u06d0d\x01\xfcT\xf8-<\xb5\x8e\xbf\a_}\x00\xe4\x95\xd8m\xb3-\xc7\xff\x11\xaa\v\xb5\x1c\x1c).s\x97\u3ae8\xe1I?\xc3\xcd?\xdb\xf0\x15[\xb3-\x8f\x83\x90\xa2p^\u065e\x8b\a\xf5\xae.\xe8\xe0\xc3X\u0194\xa1\x9f!#>:\x13\x88m\xf4`|\x17\xb6\x86\x83U\xc9.\x85\xcb\xf0/\x06\xc6@\x0e\xb7`\xa3\x8f\x11o|\xac#BtP\x89\xfe\x068\x80\x81Z\xd9\xea'\x9d\xd4s\xc8`\r'\u007f\x18\xe3\xe2\x03\x86\xd9Z\u4581o\xe1\xcb\xf8\xff'\x00\x00\xff\xff\"\xd9\xed\u04b0\xcb\xea\x95\x00\x00\x00\x00IEND\xaeB`\x82")
 
-func arcadefont_png_bytes() ([]byte, error) {
+func arcadefontPngBytes() ([]byte, error) {
-	return _arcadefont_png, nil
+	return _arcadefontPng, nil
 }
 
-func arcadefont_png() (*asset, error) {
+func arcadefontPng() (*asset, error) {
-	bytes, err := arcadefont_png_bytes()
+	bytes, err := arcadefontPngBytes()
 	if err != nil {
 		return nil, err
 	}
 
-	info := bindata_file_info{name: "arcadefont.png", size: 1008, mode: os.FileMode(420), modTime: time.Unix(1463226773, 0)}
+	info := bindataFileInfo{name: "arcadefont.png", size: 1008, mode: os.FileMode(420), modTime: time.Unix(1463226773, 0)}
 	a := &asset{bytes: bytes, info: info}
 	return a, nil
 }
@@ -73,6 +79,17 @@ func Asset(name string) ([]byte, error) {
 	return nil, fmt.Errorf("Asset %s not found", name)
 }
 
+// MustAsset is like Asset but panics when Asset would return an error.
+// It simplifies safe initialization of global variables.
+func MustAsset(name string) []byte {
+	a, err := Asset(name)
+	if err != nil {
+		panic("asset: Asset(" + name + "): " + err.Error())
+	}
+
+	return a
+}
+
 // AssetInfo loads and returns the asset info for the given name.
 // It returns an error if the asset could not be found or
 // could not be loaded.
@@ -99,7 +116,7 @@ func AssetNames() []string {
 
 // _bindata is a table, holding each asset generator, mapped to its name.
 var _bindata = map[string]func() (*asset, error){
-	"arcadefont.png": arcadefont_png,
+	"arcadefont.png": arcadefontPng,
 }
 
 // AssetDir returns the file names below a certain
@@ -131,22 +148,22 @@ func AssetDir(name string) ([]string, error) {
 		return nil, fmt.Errorf("Asset %s not found", name)
 	}
 	rv := make([]string, 0, len(node.Children))
-	for name := range node.Children {
+	for childName := range node.Children {
-		rv = append(rv, name)
+		rv = append(rv, childName)
 	}
 	return rv, nil
 }
 
-type _bintree_t struct {
+type bintree struct {
 	Func     func() (*asset, error)
-	Children map[string]*_bintree_t
+	Children map[string]*bintree
 }
 
-var _bintree = &_bintree_t{nil, map[string]*_bintree_t{
+var _bintree = &bintree{nil, map[string]*bintree{
-	"arcadefont.png": {arcadefont_png, map[string]*_bintree_t{}},
+	"arcadefont.png": {arcadefontPng, map[string]*bintree{}},
 }}
 
-// Restore an asset under the given directory
+// RestoreAsset restores an asset under the given directory
 func RestoreAsset(dir, name string) error {
 	data, err := Asset(name)
 	if err != nil {
@@ -156,7 +173,7 @@ func RestoreAsset(dir, name string) error {
 	if err != nil {
 		return err
 	}
-	err = os.MkdirAll(_filePath(dir, path.Dir(name)), os.FileMode(0755))
+	err = os.MkdirAll(_filePath(dir, filepath.Dir(name)), os.FileMode(0755))
 	if err != nil {
 		return err
 	}
@@ -171,19 +188,20 @@ func RestoreAsset(dir, name string) error {
 	return nil
 }
 
-// Restore assets under the given directory recursively
+// RestoreAssets restores an asset under the given directory recursively
 func RestoreAssets(dir, name string) error {
 	children, err := AssetDir(name)
-	if err != nil { // File
+	// File
+	if err != nil {
 		return RestoreAsset(dir, name)
-	} else { // Dir
+	}
+	// Dir
 	for _, child := range children {
-			err = RestoreAssets(dir, path.Join(name, child))
+		err = RestoreAssets(dir, filepath.Join(name, child))
 		if err != nil {
 			return err
 		}
 	}
-	}
 	return nil
 }