Speed 1

every 1 tick:
    loop all players:
        if loop-player's boots is iron boots of protection 10 or iron boots of protection 11 or iron boots of protection 12 or iron boots of protection 13 or iron boots of protection 14 or iron boots of protection 15 or iron boots of protection 16 or iron boots of protection 17 or iron boots of protection 18 or iron boots of protection 19:
            apply speed 1 to loop-player for 0.05 second
        if loop-player's boots is iron boots of protection 20:
            apply speed 2 to loop-player for 0.05 second

I tak samo z diamentowymi itp. podałem ci przykład więc nie powinieneś mieć trudności

on sharpsk armor equip:
	if event-item's type is diamond boots:
		set {_s} to level of sharpness of event-item
		if {_s} is between 10 and 20:
			apply speed 1 to player for 999 hours
		if {_s} is between 20 and 30:
			apply speed 2 to player for 99 hours
on sharpsk armor unequip:
	if event-item's type is diamond boots:
		remove speed from player