public MotionPoint(RectangleF originBounds, MotionDirection direction, MotionSpeed speed, Color color, MotionPointCollection owner)
{
this._owner = owner;
this._orgBounds = originBounds;
this._mDir = direction;
this._mSpd = speed;
this._clr = color;
this._bubble = false;
this._life = 0;
this._aFade = AlphaFade.None;
this._drwBounds = originBounds;
this._xCen = originBounds.Width / 2;
this._yCen = originBounds.Height / 2;
if (owner != null)
{
rnd = this._owner.rnd;
}
else
{
rnd = new Random(Convert.ToInt32((DateTime.Now.Ticks / 20) + (DateTime.Now.Millisecond * (DateTime.Now.TimeOfDay.Ticks / 10))));
}
if (direction > MotionDirection.FromLeft)
{
// Calculate for Left/Right/Top/Bottom movement types.
if (direction > MotionDirection.FromTop)
{
// Top/Bottom
_xPos = rnd.Next((int)originBounds.Left, (int)originBounds.Right);
if (direction == MotionDirection.FromTop)
{
_yPos = originBounds.Top;
}
else
{
_yPos = originBounds.Bottom;
}
}
else
{
// Left/Right
if (direction == MotionDirection.FromLeft)
{
_xPos = originBounds.Left;
}
else
{
_xPos = originBounds.Right;
}
_yPos = rnd.Next((int)originBounds.Top, (int)originBounds.Bottom);
}
_xSpd = rnd.Next(1, 10);
_ySpd = rnd.Next(1, 10);
}
else
{
// For free-random origin types
_xPos = rnd.Next((int)originBounds.Left, (int)originBounds.Right);
_yPos = rnd.Next((int)originBounds.Top, (int)originBounds.Bottom);
if (direction == MotionDirection.Zoom)
{
_xSpd = (_xPos - _xCen) / 2;
_ySpd = (_yPos - _yCen) / 2;
}
else if (direction == MotionDirection.Bounce)
{
_xSpd = rnd.Next(10) - 5;
if (_xSpd == 0)
{
_xSpd = 1 * System.Math.Sign((originBounds.Width / 2) - _xPos);
}
_ySpd = rnd.Next(10) - 5;
if (_ySpd == 0)
{
_ySpd = 1 * System.Math.Sign((originBounds.Height / 2) - _yPos);
}
}
else if (direction == MotionDirection.Snow)
{
_xSpd = rnd.Next(1, 5);
_ySpd = rnd.Next(1, 5);
}
else if (direction == MotionDirection.Rotate)
{
this.RotationPrecesion = 2;
_rad = rnd.Next(2, (int)(originBounds.Width / 2));
_offset = rnd.Next(_rotPrec * 2);
}
}
}
//***************************************************************************
// Class Constructors
//
public MotionPoint(Rectangle drawBounds, MotionDirection direction, MotionSpeed speed, Color color, MotionPointCollection owner)
: this(new RectangleF((float)drawBounds.Left, (float)drawBounds.Top, (float)drawBounds.Width, (float)drawBounds.Height), direction, speed, color, owner)
{
}
