@Override
public void tact(long now, long period) {
final float nextStep = MathUtils.distance(mPoint.x, mPoint.y, mNextPoint.x, mNextPoint.y);
if (nextStep > 10) {
float distance = (float) period / 1000 * mSpeed;
float m = nextStep - distance;
float x = (m * mPoint.x + distance * mNextPoint.x) / nextStep;
float y = (m * mPoint.y + distance * mNextPoint.y) / nextStep;
mPoint.x = x;
mPoint.y = y;
}
mSprite.setPosition(mPoint.x - mPointOffset.x, mPoint.y - mPointOffset.y);
mSpriteShadow.setPosition(mSprite.getX() + mPointShadow.x, mSprite.getY() + mPointShadow.y);
}
/** Calculate the euclidian distance between the first two fingers. */
private static float calculatePointerDistance(final MotionEvent pMotionEvent) {
return MathUtils.distance(
pMotionEvent.getX(0), pMotionEvent.getY(0), pMotionEvent.getX(1), pMotionEvent.getY(1));
}