/*

    Copyright (C) 2016 Apple Inc. All Rights Reserved.

    See LICENSE.txt for this sample’s licensing information

    Abstract:

    A state for use in a dispenser's state machine. This state represents when the dispenser is full. It turns on the dispenser's indicator light.

*/

import SpriteKit

import GameplayKit

class FullState: DispenserState {

    // MARK: Initialization

    required init(game: GameScene) {

        super.init(game: game, associatedNodeName: "FullState")

    }

    // MARK: GKState overrides

    override func didEnter(from previousState: GKState?) {

        super.didEnter(from: previousState)

        // Turn on the indicator light with a green color.

        let greenColor = SKColor.green

        changeIndicatorLightToColor(greenColor)

    }

    override func willExit(to nextState: GKState) {

        super.willExit(to: nextState)

        // Turn off the indicator light.

        let blackColor = SKColor.black

        changeIndicatorLightToColor(blackColor)

    }

    override func isValidNextState(_ stateClass: AnyClass) -> Bool {

        // This state can only transition to the serve state. 

        return stateClass is ServeState.Type

    }

}