/**
* Calculates a spin with which the given karttu will be at given angle when it lands.
*
* @param k karttu which desired spin should be calculated
* @param angle angle at which the karttu should land
* @return spin at which Karttu k will land at angle angle
*/
public static double calculateDesiredSpin(Karttu k, double angle) {
int time = calculateLandingTime(k);
double spin = (((angle - k.getAngle()) % 360 + 360) % 360) / time;
return spin;
}
/**
* Calculates the angle given karttu will have when it lands.
*
* @param k karttu which landing angle to calculate
* @return angle of landing
*/
public static double calculateLandingAngle(Karttu k) {
int time = calculateLandingTime(k);
double angle = k.getAngle() + k.getSpin() * time;
angle %= 360;
return angle;
}