public CCShake(float t, Vector2 pamplitude, bool pdampening, int shakeNum):base(t){
startAmplitude = pamplitude;
dampening = pdampening;
// calculate shake intervals based on the number of shakes
if(shakeNum == CCSHAKE_EVERY_FRAME)
shakeInterval = 0;
else
shakeInterval = 1.0f/shakeNum;
}