如何在单击图片框后使类中的变量输出到标签

我对OOP相当陌生，不确定如何在我的程序中实现某些东西。我的程序与打鼹鼠非常相似，并且有一个带有图像的图片框数组，并且怪物的图像在应用时间间隔的图片框之间随机移动，或者每当用户点击怪物时，就会移动到一个新的随机图片框及时。我创建了一个怪物和一个玩家子类来尝试将一些 OOP 概念添加到程序中，但不确定如何实现我想要的。基本上，我的主窗体上有一个分数标签，在我的动物类中有一个带有值的分数变量。我希望当用户单击带有痣的图片框时，能够从表单上的标签中添加分数值，并在他们未及时单击标签时从标签中删除分数值。

这是我的代码：

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        PictureBox[] boxes;
        int initialscore = 0;
        int time = 0;
        int randPos;
        public Form1()
        {
            InitializeComponent();
        }
        private void boxes_MouseClick(object sender, MouseEventArgs e)
        {
            PictureBox pb2 = new PictureBox() { Image = Image.FromFile("sword2.png") };
            this.Cursor = new Cursor(((Bitmap)pb2.Image).GetHicon());
            for (int x = 0; x < 27; x++)
            {
                if (sender.Equals(boxes[x]))
                {
                    Image grass = Image.FromFile("swamp.png");
                    PictureBox temp = (PictureBox)sender;
                    temp.Image = grass;
                }
                if (sender.Equals(boxes[x]))
                {
                PictureBox pb = (PictureBox)sender;
                if (pb.Tag == "skeleton.png")
                initialscore++;
                }

            }
            label1.Text = " Score: " +initialscore.ToString();  
        }
        public void timer1_Tick(object sender, EventArgs e)
        {
            boxes[randPos].Image = Image.FromFile("swamp.png"); 
            boxes[randPos].Tag = "swamp.png"; 
            Random r = new Random();
            randPos=r.Next(0, 27);
            boxes[randPos].Image = Image.FromFile("skeleton.png"); 
            boxes[randPos].Tag = "skeleton.png";
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            boxes = new PictureBox[27];
            int top = 100; 
            int left = 100; 
            for (int x = 0; x < 27; x++)
            {
                boxes[x] = new PictureBox();
                boxes[x].Image = Image.FromFile("swamp.png");
                boxes[x].Height = 100;
                boxes[x].Width = 100;
                if (x % 9 == 0)
                {
                    top += 120;
                    left = 120;
                }
                else
                    left += 120;
                boxes[x].Top = top;
                boxes[x].Left = (50 + left);
                Controls.Add(boxes[x]);
                this.boxes[x].MouseClick += new
                System.Windows.Forms.MouseEventHandler(this.boxes_MouseClick);
                label1.Text = " Score: " + initialscore.ToString();
                label2.Text = " Time: " + time.ToString();
        }
    }

}

namespace WindowsFormsApplication1
{
    class Monster
    {
        protected int score;
        public Monster()
        {
            score = 10;
        }
    }
} 
namespace WindowsFormsApplication1
{
    class Player:Monster
    {
    }
}

玩家类中尚未添加任何内容。

我需要添加或更改什么才能在点击移动图像时获得初始分数以改变怪物类中的分数值？

public void incrementScore(int increment)
{
  initialscore += increment;
  label1.Text = " Score: " + initialscore.ToString();
}

incrementScore(0);

protected static int Score = 10;

incrementScore(Monster.Score);