ebiten/internal/ui/ui_mobile.go
2016-05-24 00:00:54 +09:00

166 lines
3.2 KiB
Go

// 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
package ui
import (
"errors"
"github.com/hajimehoshi/ebiten/internal/graphics/opengl"
)
func initialize() (*opengl.Context, error) {
return opengl.NewContext()
}
func Main() error {
return errors.New("ui: don't call this: use RunWithoutMainLoop instead of Run")
}
func Render(chError <-chan error) error {
if chError == nil {
return errors.New("ui: chError must not be nil")
}
// TODO: Check this is called on the rendering thread
chRender <- struct{}{}
worker := glContext.Worker()
loop:
for {
select {
case err := <-chError:
return err
case <-worker.WorkAvailable():
worker.DoWork()
case <-chRenderEnd:
break loop
}
}
return nil
}
type userInterface struct {
width int
height int
scale int
sizeChanged bool
chRender chan struct{}
chRenderEnd chan struct{}
chPause chan struct{}
chResume chan struct{}
}
var (
chRender = make(chan struct{})
chRenderEnd = make(chan struct{})
currentUI = &userInterface{
sizeChanged: true,
chRender: chRender,
chRenderEnd: chRenderEnd,
}
)
func CurrentUI() UserInterface {
return currentUI
}
func (u *userInterface) Start(width, height, scale int, title string) error {
u.width = width
u.height = height
u.scale = scale
// title is ignored?
return nil
}
func (u *userInterface) Terminate() error {
return nil
}
func (u *userInterface) Update() (interface{}, error) {
// TODO: Need lock?
if u.sizeChanged {
u.sizeChanged = false
e := ScreenSizeEvent{
Width: u.width,
Height: u.height,
Scale: u.scale,
ActualScale: u.actualScreenScale(),
}
return e, nil
}
select {
case <-u.chPause:
return PauseEvent{}, nil
case <-u.chResume:
return ResumeEvent{}, nil
case <-u.chRender:
return RenderEvent{}, nil
}
}
func (u *userInterface) SwapBuffers() error {
return nil
}
func (u *userInterface) FinishRendering() error {
u.chRenderEnd <- struct{}{}
return nil
}
func (u *userInterface) SetScreenSize(width, height int) bool {
// TODO: Implement
return false
}
func (u *userInterface) SetScreenScale(scale int) bool {
// TODO: Implement
return false
}
func (u *userInterface) ScreenScale() int {
return u.scale
}
func (u *userInterface) actualScreenScale() int {
return u.scale
}
func Pause() {
go func() {
currentUI.chPause <- struct{}{}
}()
}
func Resume() {
go func() {
currentUI.chResume <- struct{}{}
}()
}
func TouchDown(x, y int) {
s := currentUI.actualScreenScale()
currentInput.touchDown(x/s, y/s)
}
func TouchUp(x, y int) {
s := currentUI.actualScreenScale()
currentInput.touchUp(x/s, y/s)
}
func TouchMove(x, y int) {
s := currentUI.actualScreenScale()
currentInput.touchMove(x/s, y/s)
}