1/**
  2 * Assignment 2, COMP268 Class: Robot.java
  3 *
  4 * @description A class used to represent the location of a robot on a grid.
  5 * @author: mo khan Student ID: 3431709
  6 * @date August 5, 2019
  7 * @version 1.0
  8 */
  9package Q9;
 10
 11public class Robot {
 12  public static final int UP = 1;
 13  public static final int DOWN = 2;
 14  public static final int LEFT = 3;
 15  public static final int RIGHT = 4;
 16  public static final int LEFT_UP_CORNER = 5;
 17  public static final int LEFT_DOWN_CORNER = 6;
 18  public static final int RIGHT_UP_CORNER = 7;
 19  public static final int RIGHT_DOWN_CORNER = 8;
 20
 21  public static final int NORTH = UP;
 22  public static final int NORTH_EAST = RIGHT_UP_CORNER;
 23  public static final int EAST = RIGHT;
 24  public static final int SOUTH_EAST = RIGHT_DOWN_CORNER;
 25  public static final int SOUTH = DOWN;
 26  public static final int SOUTH_WEST = LEFT_DOWN_CORNER;
 27  public static final int WEST = LEFT;
 28  public static final int NORTH_WEST = LEFT_UP_CORNER;
 29  public static final String R1 = "1";
 30  public static final String R2 = "2";
 31  public static final String COLLISION = "X";
 32  public static final String SPACE = " ";
 33  public static final String SEPARATOR = "|";
 34
 35  private int x;
 36  private int y;
 37
 38  /**
 39   * Constructs an instance of a robot.
 40   *
 41   * @param x the x coordinate of the robot.
 42   * @param y the y coordinate of the robot.
 43   */
 44  public Robot(int x, int y) {
 45    this.x = x;
 46    this.y = y;
 47  }
 48
 49  /** @return the x coordinate */
 50  public int getX() {
 51    return x;
 52  }
 53
 54  /** @return the y coordinate */
 55  public int getY() {
 56    return y;
 57  }
 58
 59  /** @param x the x coordinate to move to. */
 60  public void setX(int x) {
 61    this.x = x;
 62  }
 63
 64  /** @param y the y coordinate to move to. */
 65  public void setY(int y) {
 66    this.y = y;
 67  }
 68
 69  /**
 70   * @param x the x coordinate
 71   * @param y the y coordinate
 72   * @return true if the robot is at the given coordinate
 73   */
 74  public boolean atPosition(int x, int y) {
 75    return getX() == x && getY() == y;
 76  }
 77
 78  /**
 79   * @param r1 robot one.
 80   * @param r2 robot two.
 81   * @return the grid with each of the robots printed.
 82   */
 83  public static String printGrid(Robot r1, Robot r2) {
 84    String grid = "";
 85
 86    for (int row = 0; row < 10; row++) {
 87      for (int column = 0; column < 10; column++) {
 88        boolean r1InCell = r1.atPosition(row, column);
 89        boolean r2InCell = r2.atPosition(row, column);
 90
 91        grid += SEPARATOR;
 92        if (r1InCell && r2InCell) grid += COLLISION;
 93        else if (r1InCell) grid += R1;
 94        else if (r2InCell) grid += R2;
 95        else grid += SPACE;
 96      }
 97      grid += String.format("%s%s", SEPARATOR, System.lineSeparator());
 98    }
 99    return grid;
100  }
101}