Move an Ellipse in angular direction

Question

hey there I am new to C# Graphics Programming. I need to know how can I move an Ellipse inside my windows form in angular directions. I have been successfully moved my Ellipse in default direction using my code.

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My Code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Paddle_Test
{
    public partial class Form1 : Form
    {
        Rectangle rec;
        int wLoc=0;
        int hLoc=0;
        int dx=3;
        int dy=3;

    public Form1()
    {
     InitializeComponent();
     rec = new Rectangle(wLoc,hLoc , 100, 10);
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        this.Refresh();
    }

    private void Form1_Paint(object sender, PaintEventArgs e)
    {
        Graphics g = e.Graphics;
        g.SmoothingMode = SmoothingMode.AntiAlias;
        g.FillEllipse(new SolidBrush(Color.Blue), rec);

    }

    private void timer_Tick(object sender, EventArgs e)
    {
        //moving inside my timer
        rec.X += dx;  
        rec.Y += dy;  
    }


}
  }

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In simple words my Ellipse is only moving diagonally! So the Question in simple words is is it possible for me to move it like 30' or 80' or Angle Specified!

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Answer 1

I believe you're looking for some basic trigonometry functions, like:

x = cos(degrees) * maxX;
y = sin(degrees) * maxY;