function Create(self)
 self.position = {self.Pos.X, self.Pos.Y};
end

function Update(self)
 self.Pos = self.position;
end

--localize everything we're going to use that can't be more efficiently localized in the loop here.
local avgx = nil;
local avgy = nil;
local dist = nil;
local part = nil;
local selfTeam = self.Team;

--This generates a huge list; start doing a sort, eliminate junk.
for particle/item in MovableMan.Particles/Items do

--Drop a whole bunch of particles here, and now your cool thing doesn't stop your team's shots
   if particle.HitsMOs == true and particle.Team ~= selfTeam then



--Drop a lot of the rest of them here.
      if particle.PresetName ~= "your gun" then

--if we pass both cheap boolean checks, then and only then do all this math
--Trigonometry to find how far the particle is.
         avgx = particle.Pos.X - self.Pos.X;
         avgy = particle.Pos.Y - self.Pos.Y;
         dist = math.sqrt(avgx ^ 2 + avgy ^ 2);
         if dist < 300 then
--slow down any enemy particles close to me fairly rapidly
                                local velX = particle.Vel.X
                                if velX > 0 then
                                   velX = math.max(velX - 5, 0)
                                else velX = math.min(velX + 5, 0) end
                                particle.Vel.X = velX;
--repeat for Y, you're done
         end

      end
   end
end

for particle/item in MovableMan.Particles/Items do

particles in MovableMan.Particles

target in MovableMan.Particles