package lect78_impl.model;

/**
 * @overview Represents a single cell on the game board
 * 
 * @attributes
 *  position    Position    Position on the board
 *  tank        Tank        Tank on this cell (or null)
 */
public class Cell {
    private Position position;
    private Tank tank;
    
    /**
     * @effects Initializes this as an empty Cell at given position
     */
    public Cell(Position position) {
        this.position = position;
        this.tank = null;
    }
    
    /**
     * @effects Returns the position of this cell
     */
    public Position getPosition() {
        return position;
    }
    
    /**
     * @effects Returns the tank on this cell, or null if empty
     */
    public Tank getTank() {
        return tank;
    }
    
    /**
     * @effects Places a tank on this cell
     */
    public void setTank(Tank tank) {
        this.tank = tank;
    }
    
    /**
     * @effects Checks if this cell is empty (has no tank)
     */
    public boolean isEmpty() {
        return tank == null;
    }
    
    /**
     * @effects Returns string representation of this cell
     */
    @Override
    public String toString() {
        return "Cell at " + position + (isEmpty() ? " (empty)" : " (has tank)");
    }
}