mobile: Make it buildable for desktops (just for comments)

mobile/impl_empty.go

@@ -0,0 +1,37 @@
+// Copyright 2016 Hajime Hoshi
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build darwin,!arm,!arm64 linux windows
+// +build !android
+// +build !ios
+
+package mobile
+
+import (
+	"github.com/hajimehoshi/ebiten"
+)
+
+func setScreenSize(width, height int) {
+}
+
+func setScreenScale(scale float64) {
+}
+
+func render() error {
+	return nil
+}
+
+func start(f func(*ebiten.Image) error, width, height int, scale float64, title string) (EventDispatcher, error) {
+	return nil, nil
+}

mobile/impl_mobile.go

@@ -0,0 +1,48 @@
+// Copyright 2016 Hajime Hoshi
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build android ios darwin,arm darwin,arm64
+
+package mobile
+
+import (
+	"errors"
+
+	"github.com/hajimehoshi/ebiten"
+	"github.com/hajimehoshi/ebiten/internal/ui"
+)
+
+var chError <-chan error
+
+func setScreenSize(width, height int) {
+	ui.CurrentUI().SetScreenSize(width, height)
+}
+
+func setScreenScale(scale float64) {
+	ui.CurrentUI().SetScreenScale(scale)
+}
+
+func render() error {
+	if chError == nil {
+		return errors.New("mobile: chError must not be nil: Start is not called yet?")
+	}
+	return ui.Render(chError)
+}
+
+func start(f func(*ebiten.Image) error, width, height int, scale float64, title string) (EventDispatcher, error) {
+	chError = ebiten.RunWithoutMainLoop(f, width, height, scale, title)
+	return &eventDispatcher{
+		touches: map[int]position{},
+	}, nil
+}

mobile/mobile.go

@@ -12,21 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// TODO: Fix build tags to show comment docs on any platforms
-
-// +build android ios darwin,arm darwin,arm64
-
 package mobile
 
 import (
-	"errors"
-
 	"github.com/hajimehoshi/ebiten"
 	"github.com/hajimehoshi/ebiten/internal/ui"
 )
 
-var chError <-chan error
-
 type EventDispatcher interface {
 	SetScreenSize(width, height int)
 	SetScreenScale(scale float64)
@@ -39,10 +31,7 @@ type EventDispatcher interface {
 //
 // Different from ebiten.Run, this invokes only the game loop and not the main (UI) loop.
 func Start(f func(*ebiten.Image) error, width, height int, scale float64, title string) (EventDispatcher, error) {
-	chError = ebiten.RunWithoutMainLoop(f, width, height, scale, title)
-	return &eventDispatcher{
-		touches: map[int]position{},
-	}, nil
+	return start(f, width, height, scale, title)
 }
 
 type position struct {
@@ -55,18 +44,15 @@ type eventDispatcher struct {
 }
 
 func (e *eventDispatcher) SetScreenSize(width, height int) {
-	ui.CurrentUI().SetScreenSize(width, height)
+	setScreenSize(width, height)
 }
 
 func (e *eventDispatcher) SetScreenScale(scale float64) {
-	ui.CurrentUI().SetScreenScale(scale)
+	setScreenScale(scale)
 }
 
 func (e *eventDispatcher) Render() error {
-	if chError == nil {
-		return errors.New("mobile: chError must not be nil: Start is not called yet?")
-	}
-	return ui.Render(chError)
+	return render()
 }
 
 // touch implements ui.Touch.
@@ -113,11 +99,3 @@ func (e *eventDispatcher) UpdateTouchesOnAndroid(action int, id int, x, y int) {
 func (e *eventDispatcher) UpdateTouchesOnIOS(phase int, ptr int, x, y int) {
 	e.updateTouchesOnIOSImpl(phase, ptr, x, y)
 }
-
-func (e *eventDispatcher) updateTouches() {
-	ts := []ui.Touch{}
-	for id, position := range e.touches {
-		ts = append(ts, touch{id, position})
-	}
-	ui.UpdateTouches(ts)
-}

mobile/touches_empty.go

@@ -0,0 +1,25 @@
+// Copyright 2016 Hajime Hoshi
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build darwin,!arm,!arm64 linux windows
+// +build !android
+// +build !ios
+
+package mobile
+
+func (e *eventDispatcher) updateTouchesOnIOSImpl(phase int, ptr int, x, y int) {
+}
+
+func (e *eventDispatcher) updateTouches() {
+}

mobile/touches_mobile.go

@@ -0,0 +1,29 @@
+// Copyright 2016 Hajime Hoshi
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// +build android ios darwin,arm darwin,arm64
+
+package mobile
+
+import (
+	"github.com/hajimehoshi/ebiten/internal/ui"
+)
+
+func (e *eventDispatcher) updateTouches() {
+	ts := []ui.Touch{}
+	for id, position := range e.touches {
+		ts = append(ts, touch{id, position})
+	}
+	ui.UpdateTouches(ts)
+}