计算机科学

public class Ant
{
    public Square SQUARE;           //蚂蚁所在方格
    public Food CARRYING = null;    //所搬的食物数
    public int ID;                  //蚂蚁的编号
    public boolean HELPING = false; //是否帮忙搬运食物
 
public void move(int turn)
{
    //蚂蚁移动到下一个方格
}
}

public class Square
{ public Square NE;            //附近的8个方向的方格
 
     public Square N;
     public Square NW;
     public Square W;
     public Square SW;
     public Square S;
     public Square SE;
     public Square E;
     public LinkedList ANTS;        //本方格中包含的蚂蚁
     public Food FOOD;            //本方格中包含的食物数
     public Nest NEST;                //方格为蚁穴
     public Pheromone_1 PHEROMONE_1;            //本方格中的外激素含量
     public int X;            //本方格的坐标
     public int Y;
     private World WORLD;            //所属的环境
     public boolean WALL;            //是否有障碍物
 
    public Square(int x, int y, World world)
    {
        FOOD = null;
        NEST = null;
        PHEROMONE_1 = null;
        X = x;
        Y = y;
        WORLD = world;
        WALL = false;
        ANTS = new LinkedList();
    }

public class World
{
    private Square[][] WORLD;        //定义环境二维数组
    private int WIDTH;                //环境的长宽
    private int HEIGHT;
    private Pheromone_1List P1LIST;        //保存所有外激素的列表
 
    public World(Pheromone_1List p1list)
    {
        this.WIDTH = Settings.WIDTH;
        this.HEIGHT = Settings.HEIGHT;
        this.P1LIST = p1list;
        WORLD = new Square[WIDTH][HEIGHT];
    }

private Square chooseBestSquare()
{
     Square[] square_list = {SQUARE.E, SQUARE.NE, SQUARE.N, SQUARE.NW, SQUARE.W, SQUARE.SW, SQUARE.S, SQUARE.SE};
        double current_best_value = 0;
        double value = 0;
        Square square = SQUARE;
        // 选择最好的方格
 
        for(int i=0;i<square_list.length;i++)
        {
            value = calculateSquareValue(square_list[i]);//计算方格值
            if(value > current_best_value)
            {
                current_best_value = value;
                square = square_list[i];
            }
        }
        if(square.ANTS.size() >= Settings.MAXIMUM_NUMBER_OF_ANTS)
        {
          return SQUARE;
        }
        return square;
    }

private double calculateSquareValue(Square s)
{
    double[] thresholds = Settings.THRESHOLDS;
    if(s==null || s.WALL) // 方格有障碍物
    {
        return -100000;
    }
 
    // 计算方格中各项参数的值
    return s.getFood()*thresholds[0]        // 食物
    + s.getPheromone_1() * thresholds[1]    // 外激素
}

private void putPheromone_1(double amount)
{
    if(SQUARE.getPheromone_1() < Settings.PHEROMONE_LIMIT)
     SQUARE.addPheromone_1(amount);
}