function ai_tank2_init(e)
ai_soldier_state[e] = "patrol"
end
        
function ai_tank2_main(e)
   
  SetAnimation(0);
  SetAnimationSpeed(e,125)
  SetCharacterSound(e,"enemysub")
     
  if GetPlayerDistance(e) > 500 then
		RotateToPlayerSlowly(e,1)
		MoveForward(e,100)
		LoopAnimation(e);
		PlaySoundIfSilent(e,0)
   
	elseif GetPlayerDistance(e) <= 500 then
		StopAnimation(e)
  end
 
  if ai_soldier_state[e] == "patrol" then
		if ai_soldier_pathindex[e] == -1 then
		 ai_soldier_pathindex[e] = -2
		 CharacterControlArmed(e)
		 PathIndex = -1
		 PathPointIndex = -1
		 pClosest = 99999
		 for pa = 1, AIGetTotalPaths(), 1 do
			for po = 1 , AIGetPathCountPoints(pa), 1 do
			 pDX = g_Entity[e]['x'] - AIPathGetPointX(pa,po)
			 pDZ = g_Entity[e]['z'] - AIPathGetPointZ(pa,po)
			 pDist = math.sqrt(math.abs(pDX*pDX)+math.abs(pDZ*pDZ))
			 if pDist < pClosest and pDist < 200 then
				pClosest = pDist
				PathIndex = pa
				PathPointIndex = po
			 end
			end -- po
		 end -- pa
		 if PathIndex > -1 then
			ai_soldier_pathindex[e] = PathIndex
			ai_path_point_index[e] = PathPointIndex
			ModulateSpeed(e,1.0)
			SetCharacterToWalk(e)
			ai_path_point_direction[e] = 1
			ai_path_point_max[e] = AIGetPathCountPoints(ai_soldier_pathindex[e])
		 end 
		elseif ai_soldier_pathindex[e] > -1 then
		 ai_patrol_x[e] = AIPathGetPointX(ai_soldier_pathindex[e],ai_path_point_index[e])
		 ai_patrol_z[e] = AIPathGetPointZ(ai_soldier_pathindex[e],ai_path_point_index[e])
		 AIEntityGoToPosition(EntObjNo,ai_patrol_x[e],ai_patrol_z[e])
		 tDistX = g_Entity[e]['x'] - ai_patrol_x[e]
		 tDistZ = g_Entity[e]['z'] - ai_patrol_z[e]
		 DistFromPath = math.sqrt(math.abs(tDistX*tDistX)+math.abs(tDistZ*tDistZ))    
		 if DistFromPath < 50 then
			if ai_path_point_direction[e] == 1 then
			 ai_path_point_index[e] = ai_path_point_index[e] + 1
			 if ( ai_path_point_index[e] > ai_path_point_max[e] ) then
				ai_path_point_index[e] = ai_path_point_max[e] - 1
				ai_path_point_direction[e] = 0
			 end
			else
			 ai_path_point_index[e] = ai_path_point_index[e] - 1
			 if ( ai_path_point_index[e] < 1 ) then
				ai_path_point_index[e] = 2
				ai_path_point_direction[e] = 1
			 end      
			end
		 end
		end
	end 
end