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🏗 Integrates GameplayKit components with the SpriteKit scene editor
Closes #29
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| // | ||
| // BlinkComponent.swift | ||
| // SKTetris | ||
| // | ||
| // Created by Christophe SAUVEUR on 28/05/2021. | ||
| // | ||
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| import GameplayKit | ||
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| class BlinkComponent: GKComponent { | ||
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| private let BLINK_TIME_INTERVAL = 0.1 | ||
| private let MAX_BLINK_PHASE = 10 | ||
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| var blinking = false | ||
| private var blinkTimeBuffer: TimeInterval = 0 | ||
| private var blinkPhase = 0 | ||
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| override func update(deltaTime seconds: TimeInterval) { | ||
| if blinking { | ||
| blinkTimeBuffer += seconds | ||
| while blinkTimeBuffer > BLINK_TIME_INTERVAL && blinkPhase < MAX_BLINK_PHASE { | ||
| blinkTimeBuffer -= BLINK_TIME_INTERVAL | ||
| blinkPhase = min(blinkPhase + 1, MAX_BLINK_PHASE) | ||
| } | ||
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| guard let skNode = entity?.component(ofType: GKSKNodeComponent.self)?.node else { | ||
| return | ||
| } | ||
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| if blinkPhase % 2 == 1 { | ||
| skNode.alpha = 0.5 | ||
| } | ||
| else { | ||
| skNode.alpha = 1 | ||
| } | ||
| } | ||
| } | ||
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| } |
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