private void rotate(float radians) {
Geocentric lookVector = mUser.getLookDir();
Geocentric upVector = mUser.getLookNormal();
Matrix3x3 rotationMatrix = MathUtils.createRotationMatrix(radians, lookVector);
Geocentric newUpVector = MathUtils.multiplyGeocentricAndMatrix3x3(rotationMatrix, upVector);
newUpVector = MathUtils.normalize(newUpVector);
mUser.setLookNormal(newUpVector);
}
private void changeMapY(float radians) {
Geocentric lookVector = mUser.getLookDir();
Geocentric upVector = mUser.getLookNormal();
Geocentric deltaLookVector =
new Geocentric(upVector.x * -radians, upVector.y * -radians, upVector.z * -radians);
Geocentric newLookDir = MathUtils.add(lookVector, deltaLookVector);
newLookDir = MathUtils.normalize(newLookDir);
Geocentric deltaUpVector =
new Geocentric(lookVector.x * radians, lookVector.y * radians, lookVector.z * radians);
Geocentric newUpDir = MathUtils.add(upVector, deltaUpVector);
newUpDir = MathUtils.normalize(newUpDir);
mUser.setLookDir(newLookDir);
mUser.setLookNormal(newUpDir);
}