Tetris/Utils.java at master · codetoby/Tetris · GitHub

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import java.util.Arrays;
import java.util.Random;

public class Utils {

    public static int[][] deepCopy(int[][] original) {
        int[][] copy = new int[original.length][original[0].length];
        for (int i = 0; i < original.length; i++) {
            System.arraycopy(original[i], 0, copy[i], 0, original[i].length);
        }
        return copy;
    }

    public static void printMatrix(int[][] data) {
        for (int i = 0; i < data.length; i++) {
            System.out.println(Arrays.toString(data[i]));
        }
    }

    public static void shuffleArray(char[] inputArray) {
        Random rnd = new Random();
        for (int i = inputArray.length - 1; i > 0; i--) {
            int index = rnd.nextInt(i + 1);
            char temp = inputArray[index];
            inputArray[index] = inputArray[i];
            inputArray[i] = temp;
        }
    }

    public static int characterToID(char character) {
        int pentID = -1;
        if (character == 'X') {
            pentID = 0;
        } else if (character == 'I') {
            pentID = 1;
        } else if (character == 'Z') {
            pentID = 2;
        } else if (character == 'T') {
            pentID = 3;
        } else if (character == 'U') {
            pentID = 4;
        } else if (character == 'V') {
            pentID = 5;
        } else if (character == 'W') {
            pentID = 6;
        } else if (character == 'Y') {
            pentID = 7;
        } else if (character == 'L') {
            pentID = 8;
        } else if (character == 'P') {
            pentID = 9;
        } else if (character == 'N') {
            pentID = 10;
        } else if (character == 'F') {
            pentID = 11;
        }
        return pentID;
    }

}