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ios-spritekit-flappy-flying-bird/Assets/Scenes/Main Scenes/SettingsScene.sks
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ios-spritekit-flappy-flying-bird/Nodes/UI Components/TriggleButtonNode.swift
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| // | ||
| // TriggleButtonNode.swift | ||
| // ios-spritekit-flappy-flying-bird | ||
| // | ||
| // Created by Astemir Eleev on 08/10/2018. | ||
| // Copyright 漏 2018 Astemir Eleev. All rights reserved. | ||
| // | ||
|
|
||
| import SpriteKit | ||
|
|
||
| /// A type that can respond to `TriggleButtonNode` button press events. | ||
| protocol TriggleButtonNodeResponderType: class { | ||
| /// Responds to a button press. | ||
| func triggleButtonTriggered(triggle: TriggleButtonNode) | ||
| } | ||
|
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| class TriggleButtonNode: ButtonNode { | ||
|
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| // MARK: - Custom types | ||
|
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| enum TriggleState { | ||
| case off | ||
| case switched | ||
| case on | ||
|
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| static func convert(from difficultyLevel: Difficulty) -> TriggleState { | ||
| switch difficultyLevel { | ||
| case .easy: | ||
| return .off | ||
| case .medium: | ||
| return .switched | ||
| case .hard: | ||
| return .on | ||
| } | ||
| } | ||
| } | ||
|
|
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| struct Triggle { | ||
|
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| // MARK: - Properties | ||
|
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| private(set) var off: Bool | ||
| private(set) var switched: Bool | ||
| private(set) var on: Bool | ||
| private var lastTriggleState: TriggleState | ||
|
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| // MARK: - Initializers | ||
|
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| init(state: TriggleState) { | ||
| switch state { | ||
| case .off: | ||
| off = true | ||
| switched = false | ||
| on = false | ||
| lastTriggleState = .off | ||
| case .switched: | ||
| off = false | ||
| switched = true | ||
| on = false | ||
| lastTriggleState = .switched | ||
| case .on: | ||
| off = false | ||
| switched = false | ||
| on = true | ||
| lastTriggleState = .on | ||
| } | ||
| } | ||
|
|
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| // MARK: - Methods | ||
|
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| mutating func switchState() { | ||
| if off { | ||
| off = !off | ||
| switched = !switched | ||
| lastTriggleState = .switched | ||
| } else if switched { | ||
| switched = !switched | ||
| on = !on | ||
| lastTriggleState = .on | ||
| } else if on { | ||
| on = !on | ||
| off = !off | ||
| lastTriggleState = .off | ||
| } | ||
| } | ||
|
|
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| func state() -> TriggleState { | ||
| return lastTriggleState | ||
| } | ||
|
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| func toDifficultyLevel() -> Difficulty { | ||
| switch lastTriggleState { | ||
| case .off: | ||
| return Difficulty.easy | ||
| case .switched: | ||
| return Difficulty.medium | ||
| case .on: | ||
| return Difficulty.hard | ||
| } | ||
| } | ||
|
|
||
| } | ||
|
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| // MARK: - Properties | ||
|
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| var triggle: Triggle { | ||
| didSet { | ||
| guard let off = state.off, let switched = state.switched, let on = state.on else { | ||
| return | ||
| } | ||
| on.isHidden = !triggle.on | ||
| off.isHidden = !triggle.off | ||
| switched.isHidden = !triggle.switched | ||
|
|
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| if isUserInteractionEnabled { | ||
| triggleResponder.triggleButtonTriggered(triggle: self) | ||
| } | ||
| } | ||
| } | ||
|
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| private var state: (off: SKLabelNode?, switched: SKLabelNode?, on: SKLabelNode?) = (off: nil, switched: nil, on: nil) | ||
|
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| var triggleResponder: TriggleButtonNodeResponderType { | ||
| guard let responder = scene as? TriggleButtonNodeResponderType else { | ||
| fatalError("ButtonNode may only be used within a `ButtonNodeResponderType` scene.") | ||
| } | ||
| return responder | ||
| } | ||
|
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|
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| // MARK: - Initialisers | ||
|
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| required init?(coder aDecoder: NSCoder) { | ||
| let difficultyLevel = UserDefaults.standard.getDifficultyLevel() | ||
| triggle = .init(state: TriggleState.convert(from: difficultyLevel)) | ||
|
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| super.init(coder: aDecoder) | ||
|
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| guard let offState = childNode(withName: "Easy") as? SKLabelNode else { | ||
| fatalError("Could not find SKLabel node") | ||
| } | ||
| state.off = offState | ||
|
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| guard let switchedState = childNode(withName: "Medium") as? SKLabelNode else { | ||
| fatalError("Could not find SKLabel node") | ||
| } | ||
| state.switched = switchedState | ||
|
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| guard let onState = childNode(withName: "Hard") as? SKLabelNode else { | ||
| fatalError("Could not find SKLabel node") | ||
| } | ||
| state.on = onState | ||
|
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| } | ||
|
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| // MARK: - Methods | ||
|
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| override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) { | ||
| super.touchesBegan(touches, with: event) | ||
| triggle.switchState() | ||
| } | ||
| } |
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