private void radPolygon_CheckedChanged(object sender, EventArgs e)
{
const double POLYSIZE = 200d;
lblNotes.Text = "";
MyPolygon poly = null;
// Get the polygon
if (radCube.Checked)
{
poly = MyPolygon.CreateCube(POLYSIZE, true);
}
else if (radTetrahedron.Checked)
{
poly = MyPolygon.CreateTetrahedron(POLYSIZE, true);
lblNotes.Text = "Lengths:\n0,1=" + MyVector.Subtract(poly.UniquePoints[1], poly.UniquePoints[0]).GetMagnitude().ToString() + "\n0,2=" + MyVector.Subtract(poly.UniquePoints[2], poly.UniquePoints[0]).GetMagnitude().ToString() + "\n0,3=" + MyVector.Subtract(poly.UniquePoints[3], poly.UniquePoints[0]).GetMagnitude().ToString() + "\n1,2=" + MyVector.Subtract(poly.UniquePoints[2], poly.UniquePoints[1]).GetMagnitude().ToString() + "\n1,3=" + MyVector.Subtract(poly.UniquePoints[3], poly.UniquePoints[1]).GetMagnitude().ToString() + "\n2,3=" + MyVector.Subtract(poly.UniquePoints[3], poly.UniquePoints[2]).GetMagnitude().ToString();
}
else
{
_polygon = null;
MessageBox.Show("Unknown Polygon", this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
// Make a new solidball
_polygon = new SolidBallPolygon(new MyVector(0, 0, 0), new DoubleVector(1, 0, 0, 0, 1, 0), poly, 10, 10);
}
private void ShipBuildingTick()
{
MyVector centerPoint = GetMiddlePoint();
// If there is a new mass, add it before drawing the ship
if (_isMouseJustReleased)
{
_isMouseJustReleased = false;
#region Add Mass
double mass = MyVector.Subtract(new MyVector(_curMousePoint), new MyVector(_mouseDownPoint)).GetMagnitude();
if (mass > 0) // it was erroring out when I clicked without moving the mouse
{
// They just added a new mass
MyVector massPos = new MyVector(_mouseDownPoint) - centerPoint;
_ship.AddPointMass(massPos.X, massPos.Y, massPos.Z, mass);
if (_ship.PointMassCount > 2)
{
chkRunning.Enabled = true;
}
_ship.Radius = GetLargestRadius();
}
#endregion
}
// Draw the ship
DrawShipDesign(Color.MediumSlateBlue, Color.White);
DrawThrustDesign(Color.DimGray, .5d);
if (_isMouseDown)
{
// They are in the middle of adding a mass
DrawDot(new MyVector(_mouseDownPoint), MyVector.Subtract(new MyVector(_curMousePoint), new MyVector(_mouseDownPoint)).GetMagnitude(), Color.Gray);
DrawVector(new MyVector(_curMousePoint), new MyVector(_mouseDownPoint), Color.Yellow);
}
txtNumPointMasses.Text = _ship.PointMassCount.ToString();
txtTotalMass.Text = Math.Round(_ship.Mass, 1).ToString();
}
private void timer1_Tick(object sender, EventArgs e)
{
const double ELAPSEDTIME = .5;
#region Do Physics
_poolBall.PrepareForNewTimerCycle();
if (_isMouseJustReleased)
{
_isMouseJustReleased = false;
MyVector force = new MyVector(_mouseDownPoint);
force.Subtract(new MyVector(_curMousePoint));
MyVector offset = new MyVector(_mouseDownPoint);
offset.Subtract(_poolBall.Position);
_poolBall.ApplyExternalForce(offset, force);
}
_poolBall.TimerTestPosition(ELAPSEDTIME);
_poolBall.TimerFinish();
#endregion
#region Draw
ClearPictureBox();
if (_isMouseDown)
{
DrawVector(_poolBall.Position, new MyVector(_mouseDownPoint.X, _mouseDownPoint.Y, 0), Color.Olive);
DrawVector(new MyVector(_mouseDownPoint.X, _mouseDownPoint.Y, 0), new MyVector(_curMousePoint.X, _curMousePoint.Y, 0), Color.Gold);
}
DrawBall(_poolBall, Color.Silver, Color.MediumPurple, Color.Purple);
BlitImage();
#endregion
}