Tetris/Tetris Mac/TetrisHostingView.swift

//
//  TetrisHostingView.swift
//  Tetris Mac
//
//  Created by Shadowfacts on 10/16/19.
//  Copyright © 2019 Shadowfacts. All rights reserved.
//

import Cocoa
import SwiftUI
import Carbon
import TetrisKit

class TetrisHostingView: NSHostingView<ContentView> {

    let gameController: GameController
    
    override var acceptsFirstResponder: Bool {
        return true
    }
    
    init(_ gameController: GameController) {
        self.gameController = gameController
        super.init(rootView: ContentView(controller: gameController))
    }

    required init(rootView: ContentView) {
        fatalError("init(rootView:) has not been implemented")
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    override func keyDown(with event: NSEvent) {
        switch Int(event.keyCode) {
        case kVK_LeftArrow:
            gameController.left()
        case kVK_RightArrow:
            gameController.right()
        case kVK_UpArrow:
            gameController.rotate(direction: .clockwise)
        case kVK_DownArrow:
            gameController.drop()
        case kVK_Space:
            gameController.togglePause()
        default:
            super.keyDown(with: event)
        }
    }
    
    override func flagsChanged(with event: NSEvent) {
        if event.modifierFlags.contains(.control) {
            gameController.rotate(direction: .counterClockwise)
        } else if event.modifierFlags.contains(.shift) {
            gameController.hold()
        } else {
            super.flagsChanged(with: event)
        }
    }

}