void KinematicCharacterController::playerStep(btCollisionWorld* collisionWorld, btScalar dt)
{
// printf("playerStep(): ");
// printf(" dt = %f", dt);
// quick check...
if (!m_useWalkDirection && (m_velocityTimeInterval <= 0.0 || m_walkDirection.fuzzyZero())) {
// printf("\n");
return; // no motion
}
m_wasOnGround = onGround();
// Update fall velocity.
m_verticalVelocity -= m_gravity * dt;
if (m_verticalVelocity > 0.0 && m_verticalVelocity > m_jumpSpeed)
{
m_verticalVelocity = m_jumpSpeed;
}
if (m_verticalVelocity < 0.0 && btFabs(m_verticalVelocity) > btFabs(m_fallSpeed))
{
m_verticalVelocity = -btFabs(m_fallSpeed);
}
m_verticalOffset = m_verticalVelocity * dt;
btTransform xform;
xform = m_ghostObject->getWorldTransform();
// printf("walkDirection(%f,%f,%f)\n",walkDirection[0],walkDirection[1],walkDirection[2]);
// printf("walkSpeed=%f\n",walkSpeed);
stepUp(collisionWorld);
if (m_useWalkDirection) {
stepForwardAndStrafe(collisionWorld, m_walkDirection);
}
else {
//printf(" time: %f", m_velocityTimeInterval);
// still have some time left for moving!
btScalar dtMoving =
(dt < m_velocityTimeInterval) ? dt : m_velocityTimeInterval;
m_velocityTimeInterval -= dt;
// how far will we move while we are moving?
btVector3 move = m_walkDirection * dtMoving;
//printf(" dtMoving: %f", dtMoving);
// okay, step
stepForwardAndStrafe(collisionWorld, move);
}
stepDown(collisionWorld, dt);
// printf("\n");
xform.setOrigin(m_currentPosition);
m_ghostObject->setWorldTransform(xform);
}
void btKinematicCharacterController::playerStep ( btCollisionWorld* collisionWorld, btScalar dt)
{
// printf("playerStep(): ");
// printf(" dt = %f", dt);
// quick check...
if (!m_useWalkDirection && m_velocityTimeInterval <= 0.0) {
// printf("\n");
return; // no motion
}
btTransform xform;
xform = m_ghostObject->getWorldTransform ();
// printf("walkDirection(%f,%f,%f)\n",walkDirection[0],walkDirection[1],walkDirection[2]);
// printf("walkSpeed=%f\n",walkSpeed);
stepUp (collisionWorld);
if (m_useWalkDirection) {
stepForwardAndStrafe (collisionWorld, m_walkDirection);
} else {
//printf(" time: %f", m_velocityTimeInterval);
// still have some time left for moving!
btScalar dtMoving =
(dt < m_velocityTimeInterval) ? dt : m_velocityTimeInterval;
m_velocityTimeInterval -= dt;
// how far will we move while we are moving?
btVector3 move = m_walkDirection * dtMoving;
// printf(" dtMoving: %f", dtMoving);
// okay, step
stepForwardAndStrafe(collisionWorld, move);
}
stepDown (collisionWorld, dt);
// printf("\n");
xform.setOrigin (m_currentPosition);
m_ghostObject->setWorldTransform (xform);
}
//-----------------------------------------------------------------------
// p l a y e r S t e p
//-----------------------------------------------------------------------
void TKinematicCharacterTest::playerStep ( btCollisionWorld* collisionWorld, btScalar dt)
{
// btKinematicCharacterController::playerStep(collisionWorld, dt);
btTransform xform;
xform = m_ghostObject->getWorldTransform ();
stepUp (collisionWorld);
stepForwardAndStrafe (collisionWorld, m_walkDirection);
stepDown (collisionWorld, dt);
xform.setOrigin (m_currentPosition);
m_ghostObject->setWorldTransform (xform);
}
void btKinematicCharacterController::playerStep( btCollisionWorld* collisionWorld, btScalar dt )
{
BT_PROFILE( "playerStep" );
if( !m_useWalkDirection && m_velocityTimeInterval <= btScalar( 0.0 ) )
return;
bool wasOnGround = onGround();
// Handle the gravity
//
m_verticalVelocity -= m_gravity * dt;
if( m_verticalVelocity > 0.0 && m_verticalVelocity > m_jumpSpeed )
m_verticalVelocity = m_jumpSpeed;
if( m_verticalVelocity < 0.0 && btFabs( m_verticalVelocity ) > btFabs( m_fallSpeed ) )
m_verticalVelocity = -btFabs( m_fallSpeed );
m_verticalOffset = m_verticalVelocity * dt;
// This forced stepping up can cause problems when the character
// walks (jump in fact...) under too low ceilings.
//
btVector3 currentPosition = externalGhostObject->getWorldTransform().getOrigin();
btScalar currentStepOffset;
currentPosition = stepUp( collisionWorld, currentPosition, currentStepOffset );
// Move in the air and slide against the walls ignoring the stair steps.
//
if( m_useWalkDirection )
currentPosition = stepForwardAndStrafe( collisionWorld, currentPosition, m_walkDirection );
else
{
btScalar dtMoving = ( dt < m_velocityTimeInterval ) ? dt : m_velocityTimeInterval;
m_velocityTimeInterval -= dt;
// How far will we move while we are moving ?
//
btVector3 moveDirection = m_walkDirection * dtMoving;
currentPosition = stepForwardAndStrafe( collisionWorld, currentPosition, moveDirection );
}
// Finally find the ground.
//
currentStepOffset = addFallOffset( wasOnGround, currentStepOffset, dt );
currentPosition = stepDown( collisionWorld, currentPosition, currentStepOffset );
// Apply the new position to the collision objects.
//
btTransform tranform;
tranform = externalGhostObject->getWorldTransform();
tranform.setOrigin( currentPosition );
externalGhostObject->setWorldTransform( tranform );
internalGhostObject->setWorldTransform( tranform );
}
