package mysnake;
import mysnake.Node;
public class Gird
{
private Snake snake;
private Node food;
private int rows = Settings.row;
private int cols = Settings.col;
private Direction direction = Direction.right;
//根据设置的棋盘行列数初始化棋盘
public Gird(int rows, int cols)
{
snake = new Snake();
// newSnake();// 生成蛇的身体
createFood();// 生成食物
}
// private Snake newSnake()// 初始化蛇
// {
//
// }
//生成随机点
private Node randomnode()
{
int foodrow = (int) (Math.random() * Settings.row);
int foodcol = (int) (Math.random() * Settings.col);
Node a = new Node(foodrow, foodcol);
return a;
}
// 生成食物
private Node createFood()
{
food = this.randomnode();
while (this.issnakebody(food))
{
food = this.createFood();
}
return food;
}
//获取食物点
public Node getfood()
{
return food;
}
// 判断某一点是不是食物
private boolean isfood(Node addOne)
{
if (addOne.getROW() == food.getROW() && addOne.getCOL() == food.getCOL())
{
return true;
} else
{
return false;
}
}
//移动蛇
public Snake snakemove()
{
Node a = snake.getnextone(this.direction);
if ((!this.issnakebody(a) && a.getROW() >= 0 && a.getROW() < rows && a.getCOL() >= 0 && a.getCOL() < cols))
{
snake.getsnakebody().addFirst(a);
if (this.isfood(a))// 如果蛇头是食物就生成新的食物否则移除蛇尾
{
this.createFood();
} else
{
snake.getsnakebody().removeLast();
}
} else
{
snake = new Snake();
direction = Direction.right;
}
return snake;
}
// 判断一点是不是蛇身
private boolean issnakebody(Node someone)
{
boolean is = false;
for (Node a : snake.getsnakebody())
{
if ((a.getROW() == someone.getROW() && a.getCOL() == someone.getCOL()))
{
is = true;
break;
}
}
return is;
}
public Snake getsnake()
{
return snake;
}
//改变蛇的方向
public void changedirection(Direction d)
{
Direction up=Direction.up;
Direction down=Direction.down;
Direction left=Direction.left;
Direction right=Direction.right;
if(!(this.direction==up&&d==down
||this.direction==down&&d==up
||this.direction==left&&d==right
||this.direction==right&&d==left))
{
this.direction=d;
}
}
}
