local function X_axis( event ) -- Moves sprite when called by frame event listener on X-axis
 --CHINMAY's EDIT STARTS
   max_XSpeed = 2
    if actor.direction == "left" and event.joyX ~= false then  
        actor.x = actor.x + event.joyX * max_XSpeed 
        if actor.xScale == 1 then
                actor.xScale = -1 -- mirrors image if not facing left
        end
    elseif actor.direction == "right" and event.joyX ~= false then  
        actor.x = actor.x - event.joyX * max_XSpeed  
         if actor.xScale == -1 then
                 actor.xScale = 1 -- mirrors image if not facing right
        end                    
    end
end

local function activateXaxis( event ) -- Called whenever a button is pressed
         local this = event.target
         local phase = event.phase
         local pos = event.target.pos -- Get the position of the button which was pressed
         print( pos )
 
         if "began" == phase then -- If the button has just been pressed
                 actor.direction = pos -- Set the sprite to the direction of the button
                 display.getCurrentStage():setFocus( this , event.pos )
                 this.isFocus = true -- Keep event focus on the button
                 Runtime:addEventListener( "enterFrame", X_axis) -- Start the event listener to move the sprite
           elseif this.isFocus then
                   if "ended" == phase or "cancelled" == phase then -- If the button is no longer pressed
                 -- End Focus
                   display.getCurrentStage():setFocus( this , nil )
                   this.isFocus = false
                   Runtime:removeEventListener( "enterFrame", X_axis) -- Remove the event listener
            end
       end
end