I Want To Make A Monster That Cant See You If You Don't Move

So pretty much, you're gonna need a variable called "player moving". This is gonna be a logic, global variable, and its default will be false.

Now, for the procedure. This is an "on player update tick" it'll do this procedure:

If (X velocity of event/target entity > 0) or (Y velocity of event/target entity > 0) or (Z velocity of event/target entity > 0) then

Set player moving to true

else

Set player moving to false

And now, for the AI. You just program the usual AI, all the way to attack player, blah blah blah. But you're gonna add a condition. That condition is gonna just be:

return (Player moving variable)

So then, the mob will attack if the player moving variable is true, and won't if the player moving variable is false.

Note: This thing only works in singleplayer, I'll try and comment here once I know how to do it in multiplayer.

It only moves when i sprint

 i tried fixing it, but now it only does it when i jump

Return if [not[vx vy vz] = [0]] 

Use AND instead of OR