public static Bitmap CreateLineBitmap(ERectangleF rctLine, Color clrBg, Color clrPen, float penWidth, out EPointF locOffset)
{
//Because GDI+ arrows are so limited
Bitmap bmp = null;
locOffset = new EPointF();
if (rctLine.Width != 0 && rctLine.Height != 0)
{
bmp = new Bitmap((int)Math.Abs(rctLine.Width) + 1, (int)Math.Abs(rctLine.Height) + 1, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
Graphics g = Graphics.FromImage(bmp);
g.FillRectangle(new SolidBrush(clrBg), 0, 0, bmp.Width, bmp.Height);
ERectangleF rctOrigo = rctLine.Copy();
rctOrigo.MakeTopLeftAtOrigo();
Pen pen = new Pen(clrPen, penWidth);
g.DrawLine(pen, rctOrigo.X, rctOrigo.Y, rctOrigo.X + rctOrigo.Width, rctOrigo.Y + rctOrigo.Height);
g.Dispose();
if (rctOrigo.Width < 0)
{
locOffset.X = rctOrigo.Width;
}
if (rctOrigo.Height < 0)
{
locOffset.Y = rctOrigo.Height;
}
}
return(bmp);
}
private void PlayerBall_MouseEvent(Sprite sender, System.Windows.Forms.MouseEventArgs e, MouseEventType t)
{
if (t == Sprite.MouseEventType.Down)
{
forceMarker.Visible = true;
}
else if (t == Sprite.MouseEventType.StillDown)
{
MemberSpriteBitmap mb = forceMarker.Member;
if (mb != null)
{
mb.Dispose();
}
//this.MouseDownLoc.X, this.MouseDownLoc.Y
ERectangleF rctLine = ERectangleF.FromLTRB(this.Loc.X, this.Loc.Y, this.MouseLastLoc.X, this.MouseLastLoc.Y);
forceVector = rctLine.Size;
if (rctLine.Width != 0 && rctLine.Height != 0)
{
Bitmap bmp = new Bitmap((int)Math.Abs(rctLine.Width) + 1, (int)Math.Abs(rctLine.Height) + 1, System.Drawing.Imaging.PixelFormat.Format24bppRgb);
Graphics g = Graphics.FromImage(bmp);
ERectangleF rctOrigo = rctLine.Copy();
rctOrigo.MakeTopLeftAtOrigo();
Pen pen = new Pen(Color.Red, 2);
g.DrawLine(pen, rctOrigo.X, rctOrigo.Y, rctOrigo.X + rctOrigo.Width, rctOrigo.Y + rctOrigo.Height);
g.Dispose();
EPointF locOffset = new EPointF();
if (rctOrigo.Width < 0)
{
locOffset.X = rctOrigo.Width;
}
if (rctOrigo.Height < 0)
{
locOffset.Y = rctOrigo.Height;
}
mb = new MemberSpriteBitmap(bmp);
forceMarker.Member = mb;
forceMarker.Loc = this.Loc + locOffset;
}
else
{
forceMarker.Member = null;
}
}
else if (t == Sprite.MouseEventType.UpOutside || t == Sprite.MouseEventType.Click)
{
this.Velocity = forceVector * -0.1f;
forceMarker.Visible = false;
MemberSpriteBitmap mb = forceMarker.Member;
if (mb != null)
{
forceMarker.Member = null;
mb.Dispose();
}
}
}