ebiten/ui/cocoa/cocoa.go
2013-10-20 15:51:26 +09:00

136 lines
3.0 KiB
Go

package cocoa
// #cgo CFLAGS: -x objective-c -fobjc-arc
// #cgo LDFLAGS: -framework Cocoa -framework OpenGL -framework QuartzCore
//
// #include <stdlib.h>
// #include "input.h"
//
// void Run(size_t width, size_t height, size_t scale, const char* title);
//
import "C"
import (
"github.com/hajimehoshi/go-ebiten"
"github.com/hajimehoshi/go-ebiten/graphics/opengl"
"unsafe"
)
type UI struct {
screenWidth int
screenHeight int
screenScale int
title string
initializing chan ebiten.Game
initialized chan ebiten.Game
updating chan ebiten.Game
updated chan ebiten.Game
input chan ebiten.InputState
graphicsDevice *opengl.Device
}
var currentUI *UI
func New(screenWidth, screenHeight, screenScale int, title string) *UI {
if currentUI != nil {
panic("UI can't be duplicated.")
}
ui := &UI{
screenWidth: screenWidth,
screenHeight: screenHeight,
screenScale: screenScale,
title: title,
initializing: make(chan ebiten.Game),
initialized: make(chan ebiten.Game),
updating: make(chan ebiten.Game),
updated: make(chan ebiten.Game),
input: make(chan ebiten.InputState),
}
currentUI = ui
return ui
}
func (ui *UI) MainLoop() {
cTitle := C.CString(ui.title)
defer C.free(unsafe.Pointer(cTitle))
C.Run(C.size_t(ui.screenWidth),
C.size_t(ui.screenHeight),
C.size_t(ui.screenScale),
cTitle)
}
func (ui *UI) ScreenWidth() int {
return ui.screenWidth
}
func (ui *UI) ScreenHeight() int {
return ui.screenHeight
}
func (ui *UI) Initializing() chan<- ebiten.Game {
return ui.initializing
}
func (ui *UI) Initialized() <-chan ebiten.Game {
return ui.initialized
}
func (ui *UI) Updating() chan<- ebiten.Game {
return ui.updating
}
func (ui *UI) Updated() <-chan ebiten.Game {
return ui.updated
}
func (ui *UI) Input() <-chan ebiten.InputState {
return ui.input
}
//export ebiten_EbitenOpenGLView_Initialized
func ebiten_EbitenOpenGLView_Initialized() {
if currentUI.graphicsDevice != nil {
panic("The graphics device is already initialized")
}
currentUI.graphicsDevice = opengl.NewDevice(
currentUI.screenWidth,
currentUI.screenHeight,
currentUI.screenScale)
currentUI.graphicsDevice.Init()
game := <-currentUI.initializing
game.InitTextures(currentUI.graphicsDevice.TextureFactory())
currentUI.initialized <- game
}
//export ebiten_EbitenOpenGLView_Updating
func ebiten_EbitenOpenGLView_Updating() {
game := <-currentUI.updating
currentUI.graphicsDevice.Update(game.Draw)
currentUI.updated <- game
}
//export ebiten_EbitenOpenGLView_InputUpdated
func ebiten_EbitenOpenGLView_InputUpdated(inputType C.InputType, cx, cy C.int) {
if inputType == C.InputTypeMouseUp {
currentUI.input <- ebiten.InputState{-1, -1}
return
}
x, y := int(cx), int(cy)
x /= currentUI.screenScale
y /= currentUI.screenScale
if x < 0 {
x = 0
} else if currentUI.screenWidth <= x {
x = currentUI.screenWidth - 1
}
if y < 0 {
y = 0
} else if currentUI.screenHeight <= y {
y = currentUI.screenHeight - 1
}
currentUI.input <- ebiten.InputState{x, y}
}