How to fix - I'm trying to move the bitmap across the field?

Question

C++ / C#

Hello. In general, I load the map / level:

private void Form1_Paint(object sender, PaintEventArgs e)
        {
            var lines = File.ReadAllLines(@"C:\Users\MAKSIM\source\repos\LoadLevel\WindowsFormsApp5\Level\level1.txt");
            width = lines[0].Length;
            height = lines.Length;

            for (int j = 0; j < height; j++)
            {
                for (int i = 0; i < width; i++)
                {
                    switch (lines[j][i])
                    {
                        case 'x':
                            g.DrawImage(image1, i * 32, j * 32, 32, 32);
                            coordBoll[i, j] = 1;
                            break;
                        case 'b':
                            g.DrawImage(image2, i * 32, j * 32, 32, 32);
                            coordBoll[i, j] = 2;
                            break;
                        case ' ':
                            g.DrawImage(image3, i * 32, j * 32, 32, 32);
                            coordBoll[i, j] = 0;
                            break;
                        case 'p':
                            g.DrawImage(image4, i * 32, j * 32, 32, 32);
                            coordBoll[i, j] = 3;
                            break;
                        case 's':
                            g.DrawImage(image5, i * 32, j * 32, 32, 32); posSX = i; posSY = j;
                            coordBoll[i, j] = 4;
                            break;
                    }
                }
            }
        }

Further, I try to move bitmap. The player himself moves successfully (image5). When colliding with (image2), you need to move image2 left/right/up/down - depending on the buttons pressed. I check the collision condition like this:

case Keys.Left:
                    image5 = new Bitmap(@"C:\Users\MAKSIM\source\repos\LoadLevel\WindowsFormsApp5\Image\left.png");
                    g.DrawImage(image3, posSX * 32, posSY * 32);
                    g.DrawImage(image5, posSX * 32 - 32, posSY * 32);
                    posSX -= 1;

                    if (coordBoll[posSX, posSY] == 2)
                    {                     
                        for (int j = 0; j < height; j++)
                        {
                            for (int i = 0; i < width; i++)
                            {
                                g.DrawImage(image2, posSX * 32 - 32, posSY * 32);
                            }
                        }
                    }

                    g.DrawImage(image2, posSX * 32 - 32, posSY * 32);
                    break;

But every time you press the button, another image2 is drawn. How to fix it??? I do not ask you to rewrite the entire code, if there are any methodological instructions, I will gladly read or simple examples where you can move one object to another and so that they move further together. THANK YOU

Answer 1

case Keys.Left:
                    image5 = new Bitmap(@"C:\Users\MAKSIM\source\repos\LoadLevel\WindowsFormsApp5\Image\left.png");
                    g.DrawImage(image3, posSX * 32, posSY * 32);
                    g.DrawImage(image5, posSX * 32 - 32, posSY * 32);
                    posSX -= 1;

                    if (coordBoll[posSX, posSY] == 2)
                    {                     
                        for (int j = 0; j < height; j++)
                        {
                            for (int i = 0; i < width; i++)
                            {
                                g.DrawImage(image2, posSX * 32 - 32, posSY * 32);
                            }
                        }
                    }

                    g.DrawImage(image2, posSX * 32 - 32, posSY * 32); // а зачем в условии эта последняя строчка с прорисованием image2 вновь....
                    break;

and why in the condition this last line with drawing image2 again ....
And one more thing. I didn't understand these two nested loops at all. Because they don't affect anything. Why are they?
And further. Of course, I am not a specialist in games, but I would keep a grid with coordinates in my head (memory) and the drawing of elements would be independent of the number of pixels in one cell (32), so that I could always scale.