735 lines
28 KiB
Swift
735 lines
28 KiB
Swift
//
|
|
// GameViewController.swift
|
|
// Delta
|
|
//
|
|
// Created by Riley Testut on 5/5/15.
|
|
// Copyright © 2016 Riley Testut. All rights reserved.
|
|
//
|
|
|
|
import UIKit
|
|
|
|
import DeltaCore
|
|
|
|
import Roxas
|
|
|
|
private var kvoContext = 0
|
|
|
|
private extension GameViewController
|
|
{
|
|
struct PausedSaveState: SaveStateProtocol
|
|
{
|
|
var fileURL: URL
|
|
var gameType: GameType
|
|
|
|
var isSaved = false
|
|
|
|
init(fileURL: URL, gameType: GameType)
|
|
{
|
|
self.fileURL = fileURL
|
|
self.gameType = gameType
|
|
}
|
|
}
|
|
}
|
|
|
|
class GameViewController: DeltaCore.GameViewController
|
|
{
|
|
/// Assumed to be Delta.Game instance
|
|
override var game: GameProtocol? {
|
|
willSet {
|
|
self.emulatorCore?.removeObserver(self, forKeyPath: #keyPath(EmulatorCore.state), context: &kvoContext)
|
|
|
|
let game = self.game as? Game
|
|
NotificationCenter.default.removeObserver(self, name: .NSManagedObjectContextDidSave, object: game?.managedObjectContext)
|
|
}
|
|
didSet {
|
|
self.emulatorCore?.addObserver(self, forKeyPath: #keyPath(EmulatorCore.state), options: [.old], context: &kvoContext)
|
|
|
|
let game = self.game as? Game
|
|
NotificationCenter.default.addObserver(self, selector: #selector(GameViewController.managedObjectContextDidChange(with:)), name: .NSManagedObjectContextObjectsDidChange, object: game?.managedObjectContext)
|
|
}
|
|
}
|
|
|
|
//MARK: - Private Properties -
|
|
fileprivate var pauseViewController: PauseViewController?
|
|
fileprivate var pausingGameController: GameController?
|
|
|
|
// Prevents the same save state from being saved multiple times
|
|
fileprivate var pausedSaveState: PausedSaveState? {
|
|
didSet
|
|
{
|
|
if let saveState = oldValue, self.pausedSaveState == nil
|
|
{
|
|
do
|
|
{
|
|
try FileManager.default.removeItem(at: saveState.fileURL)
|
|
}
|
|
catch
|
|
{
|
|
print(error)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
fileprivate var context = CIContext(options: [kCIContextWorkingColorSpace: NSNull()])
|
|
|
|
// Sustain Buttons
|
|
fileprivate var updateSemaphores = Set<DispatchSemaphore>()
|
|
fileprivate var sustainedInputs = [ObjectIdentifier: [Input]]()
|
|
fileprivate var reactivateSustainedInputsQueue: OperationQueue
|
|
fileprivate var selectingSustainedButtons = false
|
|
|
|
fileprivate var sustainButtonsContentView: UIView!
|
|
fileprivate var sustainButtonsBlurView: UIVisualEffectView!
|
|
fileprivate var sustainButtonsBackgroundView: RSTBackgroundView!
|
|
|
|
required init()
|
|
{
|
|
self.reactivateSustainedInputsQueue = OperationQueue()
|
|
self.reactivateSustainedInputsQueue.maxConcurrentOperationCount = 1
|
|
|
|
super.init()
|
|
|
|
self.initialize()
|
|
}
|
|
|
|
required init?(coder aDecoder: NSCoder)
|
|
{
|
|
self.reactivateSustainedInputsQueue = OperationQueue()
|
|
self.reactivateSustainedInputsQueue.maxConcurrentOperationCount = 1
|
|
|
|
super.init(coder: aDecoder)
|
|
|
|
self.initialize()
|
|
}
|
|
|
|
private func initialize()
|
|
{
|
|
self.delegate = self
|
|
|
|
NotificationCenter.default.addObserver(self, selector: #selector(GameViewController.updateControllers), name: .externalControllerDidConnect, object: nil)
|
|
NotificationCenter.default.addObserver(self, selector: #selector(GameViewController.updateControllers), name: .externalControllerDidDisconnect, object: nil)
|
|
NotificationCenter.default.addObserver(self, selector: #selector(GameViewController.didEnterBackground(with:)), name: .UIApplicationDidEnterBackground, object: UIApplication.shared)
|
|
}
|
|
|
|
deinit
|
|
{
|
|
self.emulatorCore?.removeObserver(self, forKeyPath: #keyPath(EmulatorCore.state), context: &kvoContext)
|
|
}
|
|
|
|
// MARK: - GameControllerReceiver -
|
|
override func gameController(_ gameController: GameController, didActivate input: Input)
|
|
{
|
|
super.gameController(gameController, didActivate: input)
|
|
|
|
if gameController is ControllerView && UIDevice.current.isVibrationSupported
|
|
{
|
|
UIDevice.current.vibrate()
|
|
}
|
|
|
|
guard (input as? ControllerInput) != .menu else { return }
|
|
|
|
if self.selectingSustainedButtons
|
|
{
|
|
self.addSustainedInput(input, for: gameController)
|
|
}
|
|
else if let sustainedInputs = self.sustainedInputs[ObjectIdentifier(gameController)], sustainedInputs.contains(where: { $0.isEqual(input) })
|
|
{
|
|
// Perform on next run loop
|
|
DispatchQueue.main.async {
|
|
self.reactivateSustainedInput(input, for: gameController)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
//MARK: - UIViewController -
|
|
/// UIViewController
|
|
extension GameViewController
|
|
{
|
|
override func viewDidLoad()
|
|
{
|
|
super.viewDidLoad()
|
|
|
|
self.sustainButtonsContentView = UIView(frame: CGRect(x: 0, y: 0, width: self.gameView.bounds.width, height: self.gameView.bounds.height))
|
|
self.sustainButtonsContentView.translatesAutoresizingMaskIntoConstraints = false
|
|
self.sustainButtonsContentView.isHidden = true
|
|
self.view.insertSubview(self.sustainButtonsContentView, aboveSubview: self.gameView)
|
|
|
|
let blurEffect = UIBlurEffect(style: .dark)
|
|
let vibrancyEffect = UIVibrancyEffect(blurEffect: blurEffect)
|
|
|
|
self.sustainButtonsBlurView = UIVisualEffectView(effect: blurEffect)
|
|
self.sustainButtonsBlurView.frame = CGRect(x: 0, y: 0, width: self.sustainButtonsContentView.bounds.width, height: self.sustainButtonsContentView.bounds.height)
|
|
self.sustainButtonsBlurView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
|
|
self.sustainButtonsContentView.addSubview(self.sustainButtonsBlurView)
|
|
|
|
let vibrancyView = UIVisualEffectView(effect: vibrancyEffect)
|
|
vibrancyView.frame = CGRect(x: 0, y: 0, width: self.sustainButtonsBlurView.contentView.bounds.width, height: self.sustainButtonsBlurView.contentView.bounds.height)
|
|
vibrancyView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
|
|
self.sustainButtonsBlurView.contentView.addSubview(vibrancyView)
|
|
|
|
self.sustainButtonsBackgroundView = RSTBackgroundView(frame: CGRect(x: 0, y: 0, width: vibrancyView.contentView.bounds.width, height: vibrancyView.contentView.bounds.height))
|
|
self.sustainButtonsBackgroundView.autoresizingMask = [.flexibleWidth, .flexibleHeight]
|
|
self.sustainButtonsBackgroundView.textLabel.text = NSLocalizedString("Select Buttons to Sustain", comment: "")
|
|
self.sustainButtonsBackgroundView.textLabel.numberOfLines = 1
|
|
self.sustainButtonsBackgroundView.textLabel.minimumScaleFactor = 0.5
|
|
self.sustainButtonsBackgroundView.textLabel.adjustsFontSizeToFitWidth = true
|
|
self.sustainButtonsBackgroundView.detailTextLabel.text = NSLocalizedString("Press the Menu button when finished.", comment: "")
|
|
self.sustainButtonsBackgroundView.alpha = 0.0
|
|
vibrancyView.contentView.addSubview(self.sustainButtonsBackgroundView)
|
|
|
|
// Auto Layout
|
|
self.sustainButtonsContentView.leadingAnchor.constraint(equalTo: self.gameView.leadingAnchor).isActive = true
|
|
self.sustainButtonsContentView.trailingAnchor.constraint(equalTo: self.gameView.trailingAnchor).isActive = true
|
|
self.sustainButtonsContentView.topAnchor.constraint(equalTo: self.gameView.topAnchor).isActive = true
|
|
self.sustainButtonsContentView.bottomAnchor.constraint(equalTo: self.gameView.bottomAnchor).isActive = true
|
|
|
|
self.updateControllers()
|
|
}
|
|
|
|
// MARK: - Segues
|
|
/// KVO
|
|
|
|
override func prepare(for segue: UIStoryboardSegue, sender: Any?)
|
|
{
|
|
guard let identifier = segue.identifier else { return }
|
|
|
|
switch identifier
|
|
{
|
|
case "showGamesViewController":
|
|
let gamesViewController = (segue.destination as! UINavigationController).topViewController as! GamesViewController
|
|
gamesViewController.theme = .dark
|
|
gamesViewController.activeEmulatorCore = self.emulatorCore
|
|
|
|
self.updateAutoSaveState()
|
|
|
|
case "pause":
|
|
|
|
if let game = self.game
|
|
{
|
|
let fileURL = FileManager.uniqueTemporaryURL()
|
|
self.pausedSaveState = PausedSaveState(fileURL: fileURL, gameType: game.type)
|
|
|
|
self.emulatorCore?.saveSaveState(to: fileURL)
|
|
}
|
|
|
|
guard let gameController = sender as? GameController else {
|
|
fatalError("sender for pauseSegue must be the game controller that pressed the Menu button")
|
|
}
|
|
|
|
self.pausingGameController = gameController
|
|
|
|
let pauseViewController = segue.destination as! PauseViewController
|
|
pauseViewController.pauseText = (self.game as? Game)?.name ?? NSLocalizedString("Delta", comment: "")
|
|
pauseViewController.emulatorCore = self.emulatorCore
|
|
pauseViewController.saveStatesViewControllerDelegate = self
|
|
pauseViewController.cheatsViewControllerDelegate = self
|
|
|
|
pauseViewController.fastForwardItem?.selected = (self.emulatorCore?.rate != self.emulatorCore?.configuration.supportedRates.lowerBound)
|
|
pauseViewController.fastForwardItem?.action = { [unowned self] item in
|
|
guard let emulatorCore = self.emulatorCore else { return }
|
|
emulatorCore.rate = item.selected ? emulatorCore.configuration.supportedRates.upperBound : emulatorCore.configuration.supportedRates.lowerBound
|
|
}
|
|
|
|
pauseViewController.sustainButtonsItem?.selected = (self.sustainedInputs[ObjectIdentifier(gameController)]?.count ?? 0) > 0
|
|
pauseViewController.sustainButtonsItem?.action = { [unowned self, unowned pauseViewController] item in
|
|
|
|
self.resetSustainedInputs(for: gameController)
|
|
|
|
if item.selected
|
|
{
|
|
self.showSustainButtonView()
|
|
pauseViewController.dismiss()
|
|
}
|
|
}
|
|
|
|
self.pauseViewController = pauseViewController
|
|
|
|
default: break
|
|
}
|
|
}
|
|
|
|
@IBAction private func unwindFromPauseViewController(_ segue: UIStoryboardSegue)
|
|
{
|
|
self.pauseViewController = nil
|
|
self.pausingGameController = nil
|
|
|
|
guard let identifier = segue.identifier else { return }
|
|
|
|
switch identifier
|
|
{
|
|
case "unwindFromPauseMenu":
|
|
|
|
self.pausedSaveState = nil
|
|
|
|
DispatchQueue.main.async {
|
|
if
|
|
let transitionCoordinator = self.transitionCoordinator,
|
|
let navigationController = segue.source.navigationController,
|
|
navigationController.viewControllers.count == 1
|
|
{
|
|
// If user pressed "Resume" from Pause Menu, we wait for the transition to complete before resuming emulation
|
|
transitionCoordinator.animate(alongsideTransition: nil, completion: { (context) in
|
|
self.resumeEmulation()
|
|
})
|
|
}
|
|
else
|
|
{
|
|
// Otherwise, we resume emulation immediately (such as when loading save states and the game view needs to be updated ASAP)
|
|
|
|
if self.resumeEmulation()
|
|
{
|
|
// Temporarily disable audioManager to prevent delayed audio bug when using 3D Touch Peek & Pop
|
|
self.emulatorCore?.audioManager.isEnabled = false
|
|
|
|
// Re-enable after delay
|
|
|
|
DispatchQueue.main.asyncAfter(deadline: .now() + 0.1) {
|
|
self.emulatorCore?.audioManager.isEnabled = true
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
case "unwindToGames":
|
|
DispatchQueue.main.async {
|
|
self.transitionCoordinator?.animate(alongsideTransition: nil, completion: { (context) in
|
|
self.performSegue(withIdentifier: "showGamesViewController", sender: nil)
|
|
})
|
|
}
|
|
|
|
default: break
|
|
}
|
|
}
|
|
|
|
@IBAction private func unwindFromGamesViewController(with segue: UIStoryboardSegue)
|
|
{
|
|
self.pausedSaveState = nil
|
|
self.emulatorCore?.resume()
|
|
}
|
|
|
|
// MARK: - KVO
|
|
/// KVO
|
|
override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?)
|
|
{
|
|
guard context == &kvoContext else { return super.observeValue(forKeyPath: keyPath, of: object, change: change, context: context) }
|
|
|
|
guard let rawValue = change?[.oldKey] as? Int, let previousState = EmulatorCore.State(rawValue: rawValue) else { return }
|
|
|
|
if previousState == .stopped
|
|
{
|
|
self.emulatorCore?.updateCheats()
|
|
}
|
|
}
|
|
}
|
|
|
|
//MARK: - Controllers -
|
|
private extension GameViewController
|
|
{
|
|
@objc func updateControllers()
|
|
{
|
|
self.emulatorCore?.removeAllGameControllers()
|
|
|
|
if let index = Settings.localControllerPlayerIndex
|
|
{
|
|
self.controllerView.playerIndex = index
|
|
}
|
|
|
|
var controllers = [GameController]()
|
|
controllers.append(self.controllerView)
|
|
|
|
// We need to map each item as a GameControllerProtocol due to a Swift bug
|
|
controllers.append(contentsOf: ExternalControllerManager.shared.connectedControllers.map { $0 as GameController })
|
|
|
|
for controller in controllers
|
|
{
|
|
if let index = controller.playerIndex
|
|
{
|
|
// We need to place the underscore here to silence erroneous unused result warning despite annotating function with @discardableResult
|
|
// Hopefully this bug won't be around for too long...
|
|
_ = self.emulatorCore?.setGameController(controller, at: index)
|
|
controller.addReceiver(self)
|
|
}
|
|
else
|
|
{
|
|
controller.removeReceiver(self)
|
|
}
|
|
}
|
|
|
|
self.view.setNeedsLayout()
|
|
}
|
|
}
|
|
|
|
//MARK: - Save States -
|
|
/// Save States
|
|
extension GameViewController: SaveStatesViewControllerDelegate
|
|
{
|
|
fileprivate func updateAutoSaveState()
|
|
{
|
|
// Ensures game is non-nil and also a Game subclass
|
|
guard let game = self.game as? Game else { return }
|
|
|
|
// If pausedSaveState exists and has already been saved, don't update auto save state
|
|
// This prevents us from filling our auto save state slots with the same save state
|
|
let savedPausedSaveState = self.pausedSaveState?.isSaved ?? false
|
|
guard !savedPausedSaveState else { return }
|
|
|
|
self.pausedSaveState?.isSaved = true
|
|
|
|
// Must be done synchronously
|
|
let backgroundContext = DatabaseManager.shared.newBackgroundContext()
|
|
backgroundContext.performAndWait {
|
|
|
|
let game = backgroundContext.object(with: game.objectID) as! Game
|
|
|
|
let predicate = NSPredicate(format: "%K == %d AND %K == %@", #keyPath(SaveState.type), SaveStateType.auto.rawValue, #keyPath(SaveState.game), game)
|
|
|
|
let fetchRequest = SaveState.fetchRequest()
|
|
fetchRequest.predicate = predicate
|
|
fetchRequest.sortDescriptors = [NSSortDescriptor(key: #keyPath(SaveState.creationDate), ascending: true)]
|
|
|
|
var saveStates: [SaveState]? = nil
|
|
|
|
do
|
|
{
|
|
saveStates = try fetchRequest.execute() as? [SaveState]
|
|
}
|
|
catch
|
|
{
|
|
print(error)
|
|
}
|
|
|
|
if let saveStates = saveStates, let saveState = saveStates.first, saveStates.count >= 2
|
|
{
|
|
// If there are two or more auto save states, update the oldest one
|
|
self.update(saveState, with: self.pausedSaveState)
|
|
|
|
// Tiny hack; SaveStatesViewController sorts save states by creation date, so we update the creation date too
|
|
// Simpler than deleting old save states ¯\_(ツ)_/¯
|
|
saveState.creationDate = saveState.modifiedDate
|
|
}
|
|
else
|
|
{
|
|
// Otherwise, create a new one
|
|
let saveState = SaveState.insertIntoManagedObjectContext(backgroundContext)
|
|
saveState.type = .auto
|
|
saveState.game = game
|
|
|
|
self.update(saveState, with: self.pausedSaveState)
|
|
}
|
|
|
|
backgroundContext.saveWithErrorLogging()
|
|
}
|
|
}
|
|
|
|
fileprivate func update(_ saveState: SaveState, with replacementSaveState: SaveStateProtocol? = nil)
|
|
{
|
|
let isRunning = (self.emulatorCore?.state == .running)
|
|
|
|
if isRunning
|
|
{
|
|
self.pauseEmulation()
|
|
}
|
|
|
|
if let replacementSaveState = replacementSaveState
|
|
{
|
|
do
|
|
{
|
|
if FileManager.default.fileExists(atPath: saveState.fileURL.path)
|
|
{
|
|
// Don't use replaceItem(), since that removes the original file as well
|
|
try FileManager.default.removeItem(at: saveState.fileURL)
|
|
}
|
|
|
|
try FileManager.default.copyItem(at: replacementSaveState.fileURL, to: saveState.fileURL)
|
|
}
|
|
catch
|
|
{
|
|
print(error)
|
|
}
|
|
}
|
|
else
|
|
{
|
|
self.emulatorCore?.saveSaveState(to: saveState.fileURL)
|
|
}
|
|
|
|
if
|
|
let outputImage = self.gameView.outputImage,
|
|
let quartzImage = self.context.createCGImage(outputImage, from: outputImage.extent),
|
|
let data = UIImagePNGRepresentation(UIImage(cgImage: quartzImage))
|
|
{
|
|
do
|
|
{
|
|
try data.write(to: saveState.imageFileURL, options: [.atomicWrite])
|
|
}
|
|
catch
|
|
{
|
|
print(error)
|
|
}
|
|
}
|
|
|
|
saveState.modifiedDate = Date()
|
|
|
|
if isRunning
|
|
{
|
|
self.resumeEmulation()
|
|
}
|
|
}
|
|
|
|
//MARK: - SaveStatesViewControllerDelegate
|
|
|
|
func saveStatesViewController(_ saveStatesViewController: SaveStatesViewController, updateSaveState saveState: SaveState)
|
|
{
|
|
let updatingExistingSaveState = FileManager.default.fileExists(atPath: saveState.fileURL.path)
|
|
|
|
self.update(saveState)
|
|
|
|
// Dismiss if updating an existing save state.
|
|
// If creating a new one, don't dismiss.
|
|
if updatingExistingSaveState
|
|
{
|
|
self.pauseViewController?.dismiss()
|
|
}
|
|
}
|
|
|
|
func saveStatesViewController(_ saveStatesViewController: SaveStatesViewController, loadSaveState saveState: SaveStateProtocol)
|
|
{
|
|
// If we're loading the auto save state, we need to create a temporary copy of saveState.
|
|
// Then, we update the auto save state, but load our copy so everything works out.
|
|
var temporarySaveState: SaveStateProtocol? = nil
|
|
|
|
if let autoSaveState = saveState as? SaveState, autoSaveState.type == .auto
|
|
{
|
|
let temporaryURL = FileManager.uniqueTemporaryURL()
|
|
|
|
do
|
|
{
|
|
try FileManager.default.moveItem(at: saveState.fileURL, to: temporaryURL)
|
|
temporarySaveState = DeltaCore.SaveState(fileURL: temporaryURL, gameType: saveState.gameType)
|
|
}
|
|
catch
|
|
{
|
|
print(error)
|
|
}
|
|
}
|
|
|
|
self.updateAutoSaveState()
|
|
|
|
do
|
|
{
|
|
if let temporarySaveState = temporarySaveState
|
|
{
|
|
try self.emulatorCore?.load(temporarySaveState)
|
|
try FileManager.default.removeItem(at: temporarySaveState.fileURL)
|
|
}
|
|
else
|
|
{
|
|
try self.emulatorCore?.load(saveState)
|
|
}
|
|
}
|
|
catch EmulatorCore.SaveStateError.doesNotExist
|
|
{
|
|
print("Save State does not exist.")
|
|
}
|
|
catch let error as NSError
|
|
{
|
|
print(error)
|
|
}
|
|
|
|
self.emulatorCore?.updateCheats()
|
|
|
|
self.pauseViewController?.dismiss()
|
|
}
|
|
}
|
|
|
|
//MARK: - Cheats -
|
|
/// Cheats
|
|
extension GameViewController: CheatsViewControllerDelegate
|
|
{
|
|
func cheatsViewController(_ cheatsViewController: CheatsViewController, activateCheat cheat: Cheat)
|
|
{
|
|
self.emulatorCore?.activateCheatWithErrorLogging(cheat)
|
|
}
|
|
|
|
func cheatsViewController(_ cheatsViewController: CheatsViewController, deactivateCheat cheat: Cheat)
|
|
{
|
|
self.emulatorCore?.deactivate(cheat)
|
|
}
|
|
}
|
|
|
|
//MARK: - Sustain Buttons -
|
|
private extension GameViewController
|
|
{
|
|
func showSustainButtonView()
|
|
{
|
|
self.selectingSustainedButtons = true
|
|
|
|
let blurEffect = self.sustainButtonsBlurView.effect
|
|
self.sustainButtonsBlurView.effect = nil
|
|
|
|
self.sustainButtonsContentView.isHidden = false
|
|
|
|
UIView.animate(withDuration: 0.4) {
|
|
self.sustainButtonsBlurView.effect = blurEffect
|
|
self.sustainButtonsBackgroundView.alpha = 1.0
|
|
}
|
|
}
|
|
|
|
func hideSustainButtonView()
|
|
{
|
|
self.selectingSustainedButtons = false
|
|
|
|
let blurEffect = self.sustainButtonsBlurView.effect
|
|
|
|
UIView.animate(withDuration: 0.4, animations: {
|
|
self.sustainButtonsBlurView.effect = nil
|
|
self.sustainButtonsBackgroundView.alpha = 0.0
|
|
}) { (finished) in
|
|
self.sustainButtonsContentView.isHidden = true
|
|
self.sustainButtonsBlurView.effect = blurEffect
|
|
}
|
|
}
|
|
|
|
func resetSustainedInputs(for gameController: GameController)
|
|
{
|
|
if let previousInputs = self.sustainedInputs[ObjectIdentifier(gameController)]
|
|
{
|
|
let receivers = gameController.receivers
|
|
receivers.forEach { gameController.removeReceiver($0) }
|
|
|
|
// Activate previousInputs without notifying anyone so we can then deactivate them
|
|
// We do this because deactivating an already deactivated input has no effect
|
|
previousInputs.forEach { gameController.activate($0) }
|
|
|
|
receivers.forEach { gameController.addReceiver($0) }
|
|
|
|
// Deactivate previously sustained inputs
|
|
previousInputs.forEach { gameController.deactivate($0) }
|
|
}
|
|
|
|
self.sustainedInputs[ObjectIdentifier(gameController)] = []
|
|
}
|
|
|
|
func addSustainedInput(_ input: Input, for gameController: GameController)
|
|
{
|
|
var inputs = self.sustainedInputs[ObjectIdentifier(gameController)] ?? []
|
|
|
|
guard !inputs.contains(where: { $0.isEqual(input) }) else { return }
|
|
|
|
inputs.append(input)
|
|
self.sustainedInputs[ObjectIdentifier(gameController)] = inputs
|
|
|
|
let receivers = gameController.receivers
|
|
receivers.forEach { gameController.removeReceiver($0) }
|
|
|
|
// Causes input to be considered deactivated, so gameController won't send a subsequent message to observers when user actually deactivates
|
|
// However, at this point the core still thinks it is activated, and is temporarily not a receiver, thus sustaining it
|
|
gameController.deactivate(input)
|
|
|
|
receivers.forEach { gameController.addReceiver($0) }
|
|
}
|
|
|
|
func reactivateSustainedInput(_ input: Input, for gameController: GameController)
|
|
{
|
|
// These MUST be performed serially, or else Bad Things Happen™ if multiple inputs are reactivated at once
|
|
self.reactivateSustainedInputsQueue.addOperation {
|
|
|
|
// The manual activations/deactivations here are hidden implementation details, so we won't notify ourselves about them
|
|
gameController.removeReceiver(self)
|
|
|
|
// Must deactivate first so core recognizes a secondary activation
|
|
gameController.deactivate(input)
|
|
|
|
let dispatchQueue = DispatchQueue(label: "com.rileytestut.Delta.sustainButtonsQueue")
|
|
dispatchQueue.async {
|
|
|
|
let semaphore = DispatchSemaphore(value: 0)
|
|
self.updateSemaphores.insert(semaphore)
|
|
|
|
// To ensure the emulator core recognizes us activating the input again, we need to wait at least two frames
|
|
// Unfortunately we cannot init DispatchSemaphore with value less than 0
|
|
// To compensate, we simply wait twice; once the first wait returns, we wait again
|
|
semaphore.wait()
|
|
semaphore.wait()
|
|
|
|
// These MUST be performed serially, or else Bad Things Happen™ if multiple inputs are reactivated at once
|
|
self.reactivateSustainedInputsQueue.addOperation {
|
|
|
|
self.updateSemaphores.remove(semaphore)
|
|
|
|
// Ensure we still are not a receiver (to prevent rare race conditions)
|
|
gameController.removeReceiver(self)
|
|
|
|
gameController.activate(input)
|
|
|
|
let receivers = gameController.receivers
|
|
receivers.forEach { gameController.removeReceiver($0) }
|
|
|
|
// Causes input to be considered deactivated, so gameController won't send a subsequent message to observers when user actually deactivates
|
|
// However, at this point the core still thinks it is activated, and is temporarily not a receiver, thus sustaining it
|
|
gameController.deactivate(input)
|
|
|
|
receivers.forEach { gameController.addReceiver($0) }
|
|
}
|
|
|
|
// More Bad Things Happen™ if we add self as observer before ALL reactivations have occurred (notable, infinite loops)
|
|
self.reactivateSustainedInputsQueue.waitUntilAllOperationsAreFinished()
|
|
|
|
gameController.addReceiver(self)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//MARK: - GameViewControllerDelegate -
|
|
/// GameViewControllerDelegate
|
|
extension GameViewController: GameViewControllerDelegate
|
|
{
|
|
func gameViewController(_ gameViewController: DeltaCore.GameViewController, handleMenuInputFrom gameController: GameController)
|
|
{
|
|
if self.selectingSustainedButtons
|
|
{
|
|
self.hideSustainButtonView()
|
|
}
|
|
|
|
self.pauseEmulation()
|
|
self.performSegue(withIdentifier: "pause", sender: gameController)
|
|
}
|
|
|
|
func gameViewControllerShouldResumeEmulation(_ gameViewController: DeltaCore.GameViewController) -> Bool
|
|
{
|
|
return (self.presentedViewController == nil || self.presentedViewController?.isDisappearing == true) && !self.selectingSustainedButtons && self.view.window != nil
|
|
}
|
|
|
|
func gameViewControllerDidUpdate(_ gameViewController: DeltaCore.GameViewController)
|
|
{
|
|
for semaphore in self.updateSemaphores
|
|
{
|
|
semaphore.signal()
|
|
}
|
|
}
|
|
}
|
|
|
|
//MARK: - Notifications -
|
|
private extension GameViewController
|
|
{
|
|
@objc func didEnterBackground(with notification: Notification)
|
|
{
|
|
self.updateAutoSaveState()
|
|
}
|
|
|
|
@objc func managedObjectContextDidChange(with notification: Notification)
|
|
{
|
|
guard let deletedObjects = notification.userInfo?[NSDeletedObjectsKey] as? Set<NSManagedObject> else { return }
|
|
guard let game = self.game as? Game else { return }
|
|
|
|
if deletedObjects.contains(game)
|
|
{
|
|
self.emulatorCore?.gameViews.forEach { $0.inputImage = nil }
|
|
self.game = nil
|
|
}
|
|
}
|
|
}
|