Where damage is how many half hearts the player gets hurt by. Yes, I know it is merely a change of the PlayerHurt function, but I see this as more useful.
AddxVect(int x); AddyVect(int y); AddzVect(int z);
This adds or subtracts this value from the players velocity in their respective direction.
This changes the movement speed of the player. Note that double is a variable type, not a multiplier! Ofc, I don't know whether FScript supports this, but any fraction variable will work.
Same as ChangeSpeed(); but for jumping.