Circular Movement

[Fire Wizzrobe]

Can anyone explain to me how to make a FFC move in circles around a point?(Mathematically too?) All I know is that it has something to do with the modulus and for structure.

[Saffith]

Not too hard:

for(int i = 0; true; i = (i + 1) % 360)
{
this->X = centerX + radius * Cos(i);
this->Y = centerY + radius * Sin(i);
Waitframe();
}

[_L_]

Fun Fact: it is possible to make an FFC move in a circle using only four Changers! I leave this as an exercise to the reader.

[C-Dawg]

Clever use of accelleration, I imagine. Changers are set at the points of intersection between a square and an inscribed circle, and the changers mess with the velocity and accelleration of the FFC.

[DarkDragon]

Fun Fact: it is possible to make an FFC move in a circle using only four Changers! I leave this as an exercise to the reader.

Unlikely. In a diamond maybe, but not a circle.

[Revfan9]

I've done it before, although it's very, very difficult and requires a lot of mathematical calculations.

[DarkDragon]

I don't think so, unless something like torsion has been added as an FFC attribute. An object travelling in a circle is constantly accelerating in the direction of the vector from the object to the circle's center, and this direction changes continuously, so I don't see how such movement is possible with a finite number of attribute changes.