/// <summary>
/// Child function of async method that create random color in specific time
/// </summary>
/// <param name="time">input time</param>
private void RandomColor(int time)
{
//delay inside method, use stopwatch to get exact timing
System.Diagnostics.Stopwatch sw = new System.Diagnostics.Stopwatch();
sw.Start();
while (sw.ElapsedMilliseconds < time)
{
;
}
//random number -> random color
ShapeRock.BaseColor = RandomColorLib.RandColor();
}
/// <summary>
/// Virtual method between main & derived classes
/// </summary>
/// <param name="gr">current canvas</param>
public virtual void virtualRender(Graphics gr)
{
//if shape is buller, technicolor it for fun
if (_eItem == eItemType.Shot)
{
_itemColor = RandomColorLib.RandColor();
}
//fill the supply graphic board with supplied path and color
gr.FillPath(new SolidBrush(_itemColor), GetPath());
//draw the outline of shape, for testing purpose
//gr.DrawPath(new Pen(Color.White), GetPath());
}
/// <summary>
/// Override render method, draw shape when flag is true, else transparent it
/// </summary>
/// <param name="gr">current graphics canvas</param>
public override void virtualRender(Graphics gr)
{
//rand color everytime render
_itemColor = RandomColorLib.RandColor();
//always draw but use transparent color if thruting is not ON
if (IsThruster)
{
//make color like a flame
_fOpacity = _rnd.Next(25, 200);
gr.FillPath(new SolidBrush(_itemColor), GetPath());
}
//hide it by set the color to transparent
else
{
gr.FillPath(new SolidBrush(Color.Transparent), GetPath());
}
}