void World::OnWheelUp(int nX, int nY)
{
float fStepSize = 5.0f;
mlVector3D vCamera = GetCameraTransform()->GetTranslation();
float fDistance = (m_vMousePickPosition - vCamera).Magnitude();
fStepSize = fDistance * 0.05f;
fStepSize = mlClamp(fStepSize, -20.0f, 20.0f);
mlVector3D vForward = vCamera - m_vMousePickPosition;
vForward.Normalise();
vForward *= -fStepSize;
m_trnCamera.ApplyTranslation(vForward);
}
mlFloat utSubtractAndClamp(mlFloat fValue, mlFloat fToSubtract, mlFloat fMin, mlFloat fMax)
{
mlFloat fSum = fValue - fToSubtract;
fSum = mlClamp(fSum, fMin, fMax);
return fSum;
}
mlFloat utAddAndClamp(mlFloat fValue, mlFloat fToAdd, mlFloat fMin, mlFloat fMax)
{
mlFloat fSum = fValue + fToAdd;
fSum = mlClamp(fSum, fMin, fMax);
return fSum;
}
void World::OnMouseMove(int nX, int nY)
{
// Although this works, the recast in ogWindowProc is a better solution.
// if(nX > 32768) nX -= 65536;
// if(nY > 32768) nY -= 65536;
// printf("OnMouseMove: %d, %d\n", nX, nY);
// fflush(stdout);
UpdateMousePos(nX, nY);
// lets try this - nope
// RefreshPickPosition();
// Need to change this so it calls the callback during either render or update
// so that the mouse pick position is up to date
stringstream ss;
ss << "OnMouseMove(" << m_vMouse2DPositionDelta.x << "," << m_vMouse2DPositionDelta.y << "," << nX << "," << nY << ")";
luaCall(ss.str());
if(m_bMouseMovesCamera)
{
if(m_bRightMouseDown)
{
if(glutGetModifiers() & GLUT_ACTIVE_SHIFT)
{
float fStepSize = m_vMouse2DPositionDelta.y * 0.2;
mlVector3D vCamera = GetCameraTransform()->GetTranslation();
float fDistance = (m_vMousePickPosition - vCamera).Magnitude();
fStepSize *= fDistance * 0.05f;
fStepSize = mlClamp(fStepSize, -20.0f, 20.0f);
mlVector3D vForward = vCamera - m_vMousePickPosition;
vForward.Normalise();
vForward *= fStepSize;
m_trnCamera.ApplyTranslation(vForward);
}
else
{
PanCamera(m_vMouse2DPositionDelta.x, m_vMouse2DPositionDelta.y);
}
}
if(m_bLeftMouseDown)
{
// This is a magic number which maps pixels of mouse motion to radians of rotation
float fRotationSpeed = 0.008f;
float fHeadingChange = fRotationSpeed * m_vMouse2DPositionDelta.x;
float fPitchChange = fRotationSpeed * m_vMouse2DPositionDelta.y;
if(m_bDoubleClick)
{
if(m_bUsePositionPreservingOrbitCamera)
PositionPreservingOrbitCamera(m_vMousePickPosition, fHeadingChange * 0.5, fPitchChange * 0.5);
else
OrientationPreservingOrbitCamera(m_vMousePickPosition, fHeadingChange * 0.5, fPitchChange * 0.5);
}
else
{
RotateCamera(fHeadingChange, fPitchChange);
}
}
}
}
