Object.stop
Type: Boolean value
Default value: false
Overview

If specified true, then the object will stop and not move
Examples

Allow the enemy object to stop
local newAI = require('classes.SimpleAI').newAI
-- enemy instance
local enemy = newAI({group = mainGroup, img = "snailWalk1.png", x = halfW-140, y = display.contentHeight-500, ai_type = "patrol"}) 
enemy.withoutLimit = true -- allow AI go ahead without limit
function enemy:customActionOnAiCollisionWithObjects(event)
 if(event.other.type == 'enemy') then
  enemy.stop = true -- AI will stop and not move
 end
end