void RacketPhysics::testCollisionWithBall()
{
if (timeSinceLastHit < 0.5f)
return;
Ogre::Vector3 racketNormal = Ogre::Vector3::UNIT_Y;
racketNormal = ori * racketNormal;
Ogre::Vector3 ballPos = ball->getPosition();
Ogre::Plane racketPlane(racketNormal, pos);
float distanceFromPlane = racketPlane.getDistance(ballPos);
if (distanceFromPlane < 0.0f)
{
racketNormal = -racketNormal;
distanceFromPlane = -distanceFromPlane;
}
//if (distanceFromPlane < g_RacketThickness + g_BallRadius)
if (distanceFromPlane < 0.03f)
{
Ogre::Vector3 distanceVector = racketNormal * distanceFromPlane;
Ogre::Vector3 nearestPointOnPlane = ballPos - distanceVector;
Ogre::Vector3 distanceOnPlane = nearestPointOnPlane - pos;
//odprintf("dist before: %f, %f, %f", distanceOnPlane.x, distanceOnPlane.y, distanceOnPlane.z);
distanceOnPlane.z *= 0.5f;
distanceOnPlane.y *= 0.5f;
//odprintf("dist after: %f, %f, %f", distanceOnPlane.x, distanceOnPlane.y, distanceOnPlane.z);
float projectedDistance = distanceOnPlane.length();
//odprintf("dist sum: %f", projectedDistance);
//if (projectedDistance < g_RacketRadiusB)
if (projectedDistance < 0.3f)
{
odprintf("HIT, time sinc last hit: %f", timeSinceLastHit);
timeSinceLastHit = 0;
// Collision
ballPos += distanceVector * (0.03f/abs(distanceFromPlane));
ball->setPosition(ballPos);
Ogre::Vector3 ballSpeed = ball->getSpeed();
ballSpeed = ballSpeed.reflect(racketNormal);
// Perpendicular element, used for spin
Ogre::Vector3 speedPerp = racketPlane.projectVector(speed);
ball->setSpin(speedPerp.crossProduct(racketNormal));
// Parallel element, used for speed
Ogre::Vector3 speedPara = speed - speedPerp;
ballSpeed += speedPara * g_HitStrength;
ball->setSpeed(ballSpeed);
gameLogic->onTouchRacket(playerId);
}
else
{
//odprintf("no hit, time sinc last hit: %f", timeSinceLastHit);
}
}
}
