public void Loop()
{
LoopResultStates.Clear();
// update input.
controller.Loop(this);
// position and angle memory.
ox = x;
oy = y;
odx = dx;
ody = dy;
oa = a;
oda = da;
// overridable control and friction physics.
LoopControlPhysics();
LoopFrictionPhysics();
LoopCollisionPhysics();
// advance position.
x += dx;
y += dy;
oa = a % 360 + oa - a;
a = a % 360 + da;
}
public void Loop()
{
LoopResultStates.Clear();
for (var i = 0; i < elementList.Count; i++)
{
var element = elementList[i];
if (i == elementList.Count - elementsToDestroy) // hide the tail elements.
{
element.Width = 0;
element.Color = ColorEx.Black;
}
else // decay the visible elements.
{
element.Width *= 0.65f;
element.Color *= 0.6f;
}
}
if (trailState == TrailState.Stopping) // allow decay.
{
elementsToDestroy--;
elementPositions[elementList.Count - 1].Origin = finalPosition;
elementPositions[elementList.Count - 1].Direction = Vector3.Zero;
if (elementsToDestroy == 0) // remove completely.
{
LoopResultStates.Remove = true;
}
else
{
RemoveTail();
}
}
else // continue to follow.
{
AddHead();
RemoveTail();
}
}