hacked clients are not allowed as it is illegal here, however the only way you could make this be legal is to make these options turn into mod and are not SMP available (or you could but only admins could use them by default).
This is allowed as long as it doesn't affect SMP in a manner of cheating, for those who are confused on if it's allowed.
Early last week I coordinated the introduction of a new policy to disallow the posting and promotion of smp "cheat" mods, mods designed to "hack" the game in ways which could disrupt Minecraft servers.
I contacted Mojang at the time and eventually heard back a few days ago, they stated that they believe it should be up to server operators to decide which mods are allowed and as we want to follow what Mojang want from this forum we are following their decision.
From today you are now allowed to post smp "hacks" and "cheat" mods, although any that are specifically designed for griefing will still be removed.
Thanks for your patience and sorry for the inconvenience. If you had a mod removed please provide me or any of the moderators of Mapping and Modding with the name and we will return the thread to this section.
@Rockasaur123 No, it only attacks them with whatever is in your hand. It makes it easier to kill them tough because you could just walk paste them and be hurting them.
@ops99 That is the code I have for my xRay brightness, almost exactly, but it still isn't working properly.
@darkedone02 As ops99 and oCrapaCreeper have just said, It is allowed because there are pre-existing ways of disabling these mods, and in almost every case, already separate mods that exist on these forums. The only thing that is honestly original about this client is the GUI, even though I wrote the codes myself.