'Flee' is an AI behavior where an AICharacter will move in the opposite direction to a target NodePath or position.

In PandAI, 'Flee' is defined as :

aiBehaviors.flee(NodePath target, double panic_distance, double relax_distance, float priority)
aiBehaviors.flee(Vec3 position, double panic_distance, double relax_distance, float priority)

where :

Panic Distance is the radius of detection.

Relax Distance is the distance from the panic distance radius after which the object should stop fleeing once flee has been initiated.

priority is by default set to 1.0 and is used when using two or more steering behaviors on an AICharacter.

The velocity at which the AICharacter flees is determined when you first create your AICharacter object using the AICharacter constructor.

• Note: 'Flee' takes in a target or a position to be fled away from; this position should be static. (For moving objects use Evade).

A fully working flee demo :

#for directx window and functions
import direct.directbase.DirectStart
#for most bus3d stuff
from pandac.PandaModules import *
#for directx object support
from direct.showbase.DirectObject import DirectObject
#for tasks
from direct.task import Task
#for Actors
from direct.actor.Actor import Actor
#for Pandai
from panda3d.ai import *
 
class World(DirectObject):
 
    def __init__(self):
        base.disableMouse()
        base.cam.setPosHpr(0,0,55,0,-90,0)
 
        self.loadModels()
        self.setAI()
 
    def loadModels(self):
		# Seeker
        ralphStartPos = Vec3(2, 0, 0)
        self.fleer = Actor("models/ralph",
                                 {"run":"models/ralph-run"})
        self.fleer.reparentTo(render)
        self.fleer.setScale(0.5)
        self.fleer.setPos(ralphStartPos)
        # Target
        self.target = loader.loadModel("models/arrow")
        self.target.setColor(1,0,0)
        self.target.setPos(5,0,0)
        self.target.setScale(1)
        self.target.reparentTo(render)
 
    def setAI(self):
        #Creating AI World
        self.AIworld = AIWorld(render)
 
        self.AIchar = AICharacter("fleer",self.fleer, 100, 0.05, 5)
        self.AIworld.addAiChar(self.AIchar)
        self.AIbehaviors = self.AIchar.getAiBehaviors()
 
        self.AIbehaviors.flee(self.target, 5, 5)
        self.fleer.loop("run")
 
        #AI World update        
        taskMgr.add(self.AIUpdate,"AIUpdate")
 
    #to update the AIWorld    
    def AIUpdate(self,task):
        self.AIworld.update()            
        return Task.cont
 
w = World()
run()

To get a working demo of this example, please visit :

https://sites.google.com/site/etcpandai/documentation/steering-behaviors/flee/PandAIFleeExample.zip?attredirects=0&d=1