C# form objelerin birbirine değdiğini nasıl kontrol edebiliriz?

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WinFormsApp1
{
    public partial class Form1 : Form
    {
       // basılan tuşların değerleri
        public bool w = false;
        public bool s = false;
        public bool a = false;
        public bool d = false;
        public bool space = false;
        //kontrol sayacı
        int sayac=5;
        //düşman gemisinin ve lazerlerin y ve x koordinatlarının değerleri
        int x3, x4, x5, y3, y4, y5;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_KeyDown(object sender, KeyEventArgs e)
        {
            //tuşları kontrol etme
            switch (e.KeyCode)
            {
                case Keys.W: w = true; break;
                case Keys.S: s = true; break;
                case Keys.A: a = true; break;
                case Keys.D: d = true; break;
                case Keys.Space: space = true; break;
            }
        }

        private void Form1_KeyUp(object sender, KeyEventArgs e)
        {
            //tuşları kontrol etme
            switch (e.KeyCode)
            {
                case Keys.W: w = false; break;
                case Keys.S: s = false; break;
                case Keys.A: a = false; break;
                case Keys.D: d = false; break;
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            timer1.Start();
            //lazerlerin görünürlüğünü kapatma
            pictureBox3.Visible = false;
            pictureBox4.Visible = false;
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            //gemimizin hareketi
            if (w == true && pictureBox2.Location.Y > 0)
            {
                pictureBox2.Top -= 20;
                //gemimizle beraber hareket eden lazerler
                if (space==false)
                {
                    pictureBox3.Top -= 20;
                    pictureBox4.Top -= 20;
                }
            }
            if (s == true && pictureBox2.Location.Y < 1400)
            {
                pictureBox2.Top += 20;
                if (space==false)
                {
                    pictureBox3.Top += 20;
                    pictureBox4.Top += 20;
                }
            }
            if (a == true &&pictureBox2.Location.X > 0)
            {
                pictureBox2.Left -= 20;
                if (space==false)
                {
                    pictureBox3.Left -= 20;
                    pictureBox4.Left -= 20;
                }
            }
            if (d == true && pictureBox2.Location.X < 1262)
            {
                pictureBox2.Left += 20;
                if (space == false)
                {
                    pictureBox3.Left += 20;
                    pictureBox4.Left += 20;
                }
            }
            //lazer ateşlenmesi
            if (space==true)
            {
                pictureBox3.Visible = true;
                pictureBox4.Visible = true;
                pictureBox3.Top -= 120;
                pictureBox4.Top -= 120;
                label2.Text = Convert.ToString(pictureBox3.Location.Y);
                label3.Text = Convert.ToString(pictureBox3.Location.X);
                if (pictureBox3.Location.Y<0 && pictureBox4.Location.Y<0)
                {
                    pictureBox3.Visible = false;
                    pictureBox4.Visible = false;
                    pictureBox3.Top = pictureBox2.Location.Y;
                    pictureBox4.Top = pictureBox2.Location.Y;
                    pictureBox3.Left = pictureBox2.Location.X+117;
                    pictureBox4.Left = pictureBox2.Location.X+27;
                    space = false;
                }
            }
            //düşman geminin hareketi
            pictureBox5.Top += 20;
            sayac++;
            label1.Text = Convert.ToString(sayac);
            x3 = pictureBox3.Left;
            x4 = pictureBox4.Left;
            x5 = pictureBox5.Left;
            y3 = pictureBox3.Top;
            y4 = pictureBox4.Top;
            y5 = pictureBox5.Top;

            //değmeyi kontrol etme
            if (x3 + 20 >= x5 - 20 && x3 - 20 <= x5 + 20 && y3 + 20 >= y5 - 20 && y3 - 20 <= y5 + 20)
            {
                label4.Text = "sağdaki lazer değdi";
            }
            if (x4 + 20 >= x5 - 20 && x4 - 20 <= x5 + 20 && y4 + 20 >= y5 - 20 && y4 - 20 <= y5 + 20)
            {
                label5.Text = "soldaki lazer değdi";
            }

        }
    }
}