private void canvas_Paint(object sender, PaintEventArgs e) { if (qAgent != null) { displayBox.Text = qAgent.draw_world(e.Graphics); switch (qAgent.simspeed) { case 0: displayBox.Text += Environment.NewLine + "Simulation speed: Slow"; break; case 1: displayBox.Text += Environment.NewLine + "Simulation speed: Normal"; break; case 2: displayBox.Text += Environment.NewLine + "Simulation speed: Fast"; break; case 3: displayBox.Text += Environment.NewLine + "Simulation speed: Very Fast"; break; } } canvas.Update(); // refresh charts if (chkCharts.Checked) { updateCharts(); } // pause process if duration reached if (needToStart && duration != 0 && qAgent != null && qAgent.getTickCount() >= duration) { PauseBtn.PerformClick(); } }