mobile: Exclude non-mobile environments to build

mobile/compat.go

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

mobile/ebitenmobileview/funcs.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build android ios
+
 // Package ebitenmobileview offers functions for OpenGL/Metal view of mobiles.
 //
 // The functions are not intended for public usages.

mobile/ebitenmobileview/game.go

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

mobile/ebitenmobileview/impl_notmobile.go

@@ -1,28 +0,0 @@
-// Copyright 2019 The Ebiten Authors
-//
-// 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
-// +build !ios
-
-package ebitenmobileview
-
-func update() error {
-	return nil
-}
-
-func UpdateTouchesOnAndroid(action int, id int, x, y int) {
-}
-
-func UpdateTouchesOnIOS(phase int, ptr int64, x, y int) {
-}

mobile/mobile.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+// +build android ios
+
 // Package mobile provides functions for mobile platforms (Android and iOS).
 //
 // This package is used when you use `ebitenmobile bind`.