New Character: Hunger / Thirst

[Derision]

This might work for testing if the player is on a mount (untested):

        if(GetBuffSlotFromType(SE_SummonHorse) != -1) {
		// We are on a mount ... your code here
		
        }

GetBuffSlotFromType looks at the buff slots for a spell with the given effect and returns a slot number if such a buff is on the player, or -1 otherwise.

zone/spdat.h has all the Spell Effect types you can use.

Another way (probably more efficient) could be:

if(GetHorseId()) {
      // We are on a mount
}