Snakes

package Snake;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Point;
import java.util.ArrayList;

public class Snakes {
    public static final int UP = 0, DOWN = 1, LEFT = 2, RIGHT = 3, SCALE = 10;

    public Snake snake;
    public int direction = DOWN, score = 0, tailLength = 5;
    public ArrayList<Point> snakeParts = new ArrayList<Point>();
    public int playerNumber, x, y;
    public Point head;
    public Cherry cherry;
    public boolean over = false;

    public Snakes(Snake snake, int playerNumber, int x, int y) {
        this.head = new Point(x, y);
        this.x = x;
        this.y = y;
        this.playerNumber = playerNumber;
        for (int i = 0; i < tailLength; i++)
            snakeParts.add(new Point(head.x, head.y));
    }

    public void render(Graphics g) {
        String string = "Score: " + score + ", Length: " + tailLength;
        if (playerNumber == 1)
            g.setColor(Color.RED);
        else
            g.setColor(Color.YELLOW);
        Move(direction);
        for (Point point : this.snakeParts) {
            g.fillRect(point.x * Snake.SCALE, point.y * Snake.SCALE, Snake.SCALE, Snake.SCALE);
        }
        g.fillRect(this.head.x * Snake.SCALE, this.head.y * Snake.SCALE, Snake.SCALE, Snake.SCALE);
        g.setFont(new Font("Arial", 1, 15));
        if(playerNumber == 1) {
            g.drawString(string, 0, 10);
        }
        else
            g.drawString(string, 660, 10);
    }

    public void Move(int moveDirection) {
        // this.direction = moveDirection;
        snakeParts.add(new Point(head.x, head.y));
        if (snakeParts.size() > tailLength)
            snakeParts.remove(0);
        switch (moveDirection) {
        case (UP):
            if (this.direction != DOWN) {
                if (head.y - 1 >= 0 && NoTailAt(head.x, head.y - 1)) {
                    head = new Point(head.x, head.y - 1);
                    this.direction = moveDirection;
                } else
                    over = true;
            }
            break;
        case (DOWN):
            if (this.direction != UP) {
                if (head.y + 1 < 67 && NoTailAt(head.x, head.y + 1)) {
                    head = new Point(head.x, head.y + 1);
                    this.direction = moveDirection;
                } else
                    over = true;
            }
            break;
        case (LEFT):
            if (this.direction != RIGHT) {
                if (head.x - 1 >= 0 && NoTailAt(head.x - 1, head.y)) {
                    head = new Point(head.x - 1, head.y);
                    this.direction = moveDirection;
                } else
                    over = true;
            }
            break;
        case (RIGHT):
            if (this.direction != LEFT) {
                if (head.x + 1 < 80 && NoTailAt(head.x + 1, head.y)) {
                    head = new Point(head.x + 1, head.y);
                    this.direction = moveDirection;
                } else
                    over = true;
            }
            break;
        }
    }

    public boolean NoTailAt(int x, int y) {
        for (Point point : snakeParts) {
            if (point.equals(new Point(x, y)))
                return false;
        }
        return true;
    }
}