public static void DrawShape(Graphics gfx, RectangleF area, Shapes shape, Boolean randomWithin, Boolean isfilled)
{
Shapes trueshape = shape;
if (trueshape == Shapes.RandomShape)
{
trueshape = GetRandomShape();
}
RectangleF rect = area;
if (randomWithin)
{
float x = Rando.RandomFloat(area.X, area.X + area.Width);
float y = Rando.RandomFloat(area.Y, area.Y + area.Height);
float width = Rando.RandomFloat(1, area.Width);
float height = Rando.RandomFloat(1, area.Height);
rect = new RectangleF(x, y, width, height);
}
if (trueshape == Shapes.Square || trueshape == Shapes.Circle)
{
rect.Width = Math.Min(rect.Width, rect.Height);
rect.Height = rect.Width;
}
using (var brush = new SolidBrush(Rando.RandomColor()))
using (var pen = new Pen(brush, Rando.RandomFloat(0.5f, 10.0f)))
{
switch (trueshape)
{
case Shapes.Circle:
case Shapes.Ellipse:
DrawEllipse(gfx, brush, pen, rect, isfilled);
break;
default:
{
PointF[] points = GeneratePoints(trueshape, rect);
DrawPolygon(gfx, brush, pen, points, isfilled);
}
break;
}
}
}
public static PointF[] GeneratePoints(Shapes shape, RectangleF bounds)
{
List <PointF> ans = new List <PointF>();
float cx = bounds.X + (bounds.Width / 2);
float cy = bounds.Y + (bounds.Height / 2);
float radius = Math.Min(bounds.Width, bounds.Height) / 2;
switch (shape)
{
case Shapes.Rectangle:
case Shapes.Square:
ans.Add(new PointF(bounds.X, bounds.Y));
ans.Add(new PointF(bounds.X + bounds.Width, bounds.Y));
ans.Add(new PointF(bounds.X + bounds.Width, bounds.Y + bounds.Height));
ans.Add(new PointF(bounds.X, bounds.Y + bounds.Height));
ans.Add(new PointF(bounds.X, bounds.Y));
break;
case Shapes.Diamond:
ans.Add(new PointF(cx, cy - radius));
ans.Add(new PointF(cx + radius, cy));
ans.Add(new PointF(cx, cy + radius));
ans.Add(new PointF(cx - radius, cy));
break;
case Shapes.Triangle_Right:
ans.Add(new PointF(bounds.X, bounds.Y));
ans.Add(new PointF(bounds.X + bounds.Width, bounds.Y + bounds.Height));
ans.Add(new PointF(bounds.X, bounds.Y + bounds.Height));
ans.Add(new PointF(bounds.X, bounds.Y));
break;
case Shapes.Triangle_CenterTop:
ans.Add(new PointF(cx, bounds.Y));
ans.Add(new PointF(bounds.X + bounds.Width, bounds.Y + bounds.Height));
ans.Add(new PointF(bounds.X, bounds.Y + bounds.Height));
ans.Add(new PointF(cx, bounds.Y));
break;
case Shapes.Triangle_CenterBottom:
ans.Add(new PointF(cx, bounds.Y + bounds.Height));
ans.Add(new PointF(bounds.X, bounds.Y));
ans.Add(new PointF(bounds.X + bounds.Width, bounds.Y));
ans.Add(new PointF(cx, bounds.Y + bounds.Height));
break;
case Shapes.Triangle_CenterLeft:
ans.Add(new PointF(bounds.X, bounds.Y));
ans.Add(new PointF(bounds.X + bounds.Width, cy));
ans.Add(new PointF(bounds.X, bounds.Y + bounds.Height));
ans.Add(new PointF(bounds.X, bounds.Y));
break;
case Shapes.Triangle_CenterRight:
ans.Add(new PointF(bounds.X, cy));
ans.Add(new PointF(bounds.X + bounds.Width, bounds.Y));
ans.Add(new PointF(bounds.X + bounds.Width, bounds.Y + bounds.Height));
ans.Add(new PointF(bounds.X, cy));
break;
case Shapes.RandomPolygon:
{
int count = Rando.RandomInt(3, 10);
for (int i = 0; i < count; i++)
{
float x, y;
Boolean isXBorder = Rando.RandomBoolean();
if (isXBorder)
{
if (Rando.RandomBoolean())
{
x = bounds.X;
}
else
{
x = bounds.X + bounds.Width;
}
y = Rando.RandomFloat(bounds.Y, bounds.Y + bounds.Height);
}
else
{
x = Rando.RandomFloat(bounds.X, bounds.X + bounds.Width);
if (Rando.RandomBoolean())
{
y = bounds.Y;
}
else
{
y = bounds.Y + bounds.Height;
}
}
ans.Add(new PointF(x, y));
}
}
break;
default:
throw new NotSupportedException(String.Format("Generate Points does not support: {0}", shape.ToString()));
}
return(ans.ToArray());
}
