run("diffutils")
clear_interlocks()

#alpha, delta, gamma, omegaV
setup_diff(fourcv, energy, ("mu", "delta", "gam", "eta"), simultaneous_move=True)


if energy.isSimulated():
    wavelength.write(1.305)

class InterlockFourcv (Interlock): 
    def __init__(self): 
        Interlock.__init__(self, (fourcv, alpha, delta, gamma, omegaV)) 

    def check(self, (p, a, d, g, o)): 
        if fourcv.isStartingSimultaneousMove():
            a, d, g, o = p
            
        if g < (a-3):
            return False
            
        return True
        
add_interlock(InterlockFourcv())