Unfortunately i am zero in coding matters
but i think the ver you posted for mt4 is old enough belongs to 2007 or may be a bit more older
then it was touched by igor - later Mladen tweaked and enhanced it code wise,also added some extra but fine features in it,posting the one "Fx Sniper Ergodic CCI Trigger Alert Fast mtf arrows_v1 nmc"
almost arrows - alerts and interpolated mtf included too
though there are more extended and updated versions of it too at FS