mud/world/playeravatar.py

Above def perspective_endLooting(self) add the following

    #called from simmind when a player is casting and has been detected moving
    def perspective_stopCasting(self):
        for char in self.player.party.members:
            if (char.mob.casting):
                char.mob.casting.cancel()

mud/simulation/simmind.py

Change the from math statement to look like this

from math import radians,sqrt,fabs

In class SimMind? find the following

        self.updateSimObjects()
        self.tickBrains()

After it add the following

        self.checkVelocity()

Find def updateCansSee(self) and before it add this function

    #4x a seconds it checks for velocity changes (movement).  Currently used to stop spells
    def checkVelocity(self):
        try:
            #find a simObject for the player...could be online or off with multiple objects
            for so in self.simObjects:
                #need a brain....need to check casting
                if so.brain and so.brain.iscasting:
                    tgeObject = so.tgeObject
                    vel = tgeObject.getVelocity()
                    if fabs(vel[0]) > .1 or fabs(vel[1]) > .1:
                        self.perspective.callRemote("PlayerAvatar","stopCasting")
                        so.brain.cast(False)
        except:
            print_exc()
        self.velocityTick = reactor.callLater(.25,self.checkVelocity)