void frame_KeyPressDown(Element sender, KeyEventArgs e)
{
switch (e.InterestingKeys[0])
{
case Keys.F:
factive = !factive;
if (factive)
{
foreach (var ball in PE.ActiveBodies)
{
if (rand.Next(5) == 0)
{
PE.AddBoundForceField(new BoundForceField(ball, 20, DefaultForces.StrongAttractor));
//PE.AddBoundForceField(new BoundForceField(ball, 20, DefaultForces.WeakAttractor));
}
if (rand.Next(50) == 0)
{
//PE.AddBoundForceField(new BoundForceField(ball, 100, DefaultForces.StrongAttractor));
//PE.AddBoundForceField(new BoundForceField(ball, 20, DefaultForces.WeakAttractor));
}
}
}
else
{
PE.bffields.Clear();
}
break;
case Keys.L:
var c0 = new CircleBody(30, 300, new Vector2((new System.Random()).Next(0, (int)winSize.Width - 60), winSize.Height));
c0.Velocity = -1000 * Vector2.UnitY;
PE.ActiveBodies.Add(c0);
break;
case Keys.D:
dactive = !dactive;
if (dactive)
{
PE.AddUniversalForce(DefaultForces.LinearDrag);
}
else
{
PE.RemoveUniversalForce(DefaultForces.LinearDrag);
}
break;
case Keys.G:
gactive = !gactive;
if (gactive)
{
PE.AddUniversalForce(DefaultForces.Gravity);
}
else
{
PE.RemoveUniversalForce(DefaultForces.Gravity);
}
break;
default:
break;
}
printStat();
}