public class PlayActivity extends Activity {

    ImageButton[] bb= new ImageButton[6];
    int check_numbers[]={0,0,0}; // проверка на количество каждого вида карт при присвоении
    Button b;
    private boolean[] is_open={false,false,false,false,false,false};//открыта ли
    boolean[] reaction={true, true, true, true, true, true};//реагирует ли на клик
    Random random=new Random();
    int[] numbers={2,0,1,2,1,0};// номера картинок
    private int size;
    private int two_open; //счетчик открытых - до двух
    private int unreactive_pairs; //отгаданные пары


    void addCard() {
        is_open[size]=false;
        reaction[size]=true;
        int r=random.nextInt(3);
        while(check_numbers[r]>=2){
            r=random.nextInt(3);
        }
        numbers[size]=r;
        check_numbers[r]++;
        size++;
    }

    void checkCards(int index){
        if (two_open == 2) {
            try {
                sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            for (int i = 0; i < size; i++) {
                if (is_open[i]) {
                    if (i != index) {
                        if (numbers[i]==numbers[index]) {
                            reaction[i]=false;
                            is_open[i]=false;
                            reaction[index]=false;
                            is_open[index]=false;
                            unreactive_pairs++;
                            two_open=0;

                        } else {
                            closeCard(i);
                            closeCard(index);

                        }
                        break;
                    }
                }
            }
        }
    }

    void openCard(int index) {
        if (reaction[index]) {
            switch (numbers[index]) {
                case 0: {
                    bb[index].setImageResource(R.drawable.cat0);
                    break;
                }
                case 1: {
                    bb[index].setImageResource(R.drawable.cat1);
                    break;
                }
                case 2: {
                    bb[index].setImageResource(R.drawable.cat2);
                    break;
                }
            }

            is_open[index]= true;
            two_open++;
        }
    }

    void closeCard(int index) {
        if (reaction[index]) {
            bb[index].setImageResource(R.drawable.sh);
            is_open[index]=false;
            two_open--;
        }
    }


    boolean getOpen(int index){
        return (is_open[index]);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_play);
            bb[0] = (ImageButton) findViewById(R.id.ib1);
            bb[1] = (ImageButton) findViewById(R.id.ib2);
            bb[2] = (ImageButton) findViewById(R.id.ib3);
            bb[3] = (ImageButton) findViewById(R.id.ib4);
            bb[4] = (ImageButton) findViewById(R.id.ib5);
            bb[5] = (ImageButton) findViewById(R.id.ib6);
            b = (Button) findViewById(R.id.b);

            for (int i = 0; i < 6; i++) {
                addCard();
            }

            bb[0].setImageResource(R.drawable.sh);
            bb[1].setImageResource(R.drawable.sh);
            bb[2].setImageResource(R.drawable.sh);
            bb[3].setImageResource(R.drawable.sh);
            bb[4].setImageResource(R.drawable.sh);
            bb[5].setImageResource(R.drawable.sh);
            //size = 0;

            bb[0].setOnClickListener(Click1);
            bb[1].setOnClickListener(Click2);
            bb[2].setOnClickListener(Click3);
            bb[3].setOnClickListener(Click4);
            bb[4].setOnClickListener(Click5);
            bb[5].setOnClickListener(Click6);
            b.setOnClickListener(Click);
    }

    private final View.OnClickListener Click = new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent(PlayActivity.this, LevelActivity.class);
            startActivity(intent);
        }
    };

   private final View.OnClickListener Click1 = new View.OnClickListener() {
        @Override
        public void onClick(View view) {
        if(getOpen(0)){
            closeCard(0);
        }else {
            openCard(0);
            checkCards(0);
        }
        if(unreactive_pairs==3){
            try {
                sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            Intent intent = new Intent(PlayActivity.this, WinActivity.class);
            startActivity(intent);
        }
        }
   };
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