/**
* <code>performAction</code> moves the camera along it's negative direction vector at a speed of
* movement speed * time. Where time is the time between frames and 1 corresponds to 1 second.
*
* @see com.jme.input.action.KeyInputAction#performAction(InputActionEvent)
*/
public void performAction(InputActionEvent evt) {
Vector3f loc = camera.getLocation();
if (!camera.isParallelProjection()) {
loc.subtractLocal(camera.getDirection().mult(speed * evt.getTime(), tempVa));
} else {
// move down instead of backward if in parallel mode
loc.subtractLocal(camera.getUp().mult(speed * evt.getTime(), tempVa));
}
camera.update();
}
/**
* <code>performAction</code> rotates the camera about it's up vector or lock axis at a speed of
* movement speed * time. Where time is the time between frames and 1 corresponds to 1 second.
*
* @see com.jme.input.action.KeyInputAction#performAction(InputActionEvent)
*/
public void performAction(InputActionEvent evt) {
incr.loadIdentity();
if (lockAxis == null) {
node.getLocalRotation().getRotationColumn(1, tempVa);
tempVa.normalizeLocal();
incr.fromAngleNormalAxis(-speed * evt.getTime(), tempVa);
} else {
incr.fromAngleNormalAxis(-speed * evt.getTime(), lockAxis);
}
node.getLocalRotation()
.fromRotationMatrix(incr.mult(node.getLocalRotation().toRotationMatrix(tempMa), tempMb));
node.getLocalRotation().normalize();
}
/**
* <code>performAction</code> moves the camera along the negative left vector for a given distance
* of speed * time.
*
* @see com.jme.input.action.KeyInputAction#performAction(InputActionEvent)
*/
public void performAction(InputActionEvent evt) {
Vector3f loc = node.getLocalTranslation();
loc =
loc.addLocal(
node.getLocalRotation().getRotationColumn(0, tempVa).multLocal(-speed * evt.getTime()));
node.setLocalTranslation(loc);
}
