[Question] Using ccSensors for tracking players in SMP

ctrl = sensors.getController()
sensor = "Sensor"
targ = "LivingEntities"

term.clear()
term.setCursorPos(1,1)
print("Player located at:")

while true do
   targets = sensors.getAvailableTargetsforProbe(ctrl,sensor,targ)
   for i,val in ipairs(targets) do
-- 	 print(val)
	  what,x,y,z = string.match(val,"([a-z]+),(-?[0-9]+),(-?[0-9]+), (-?[0-9]+)")
	  x,y,z=tonumber(x),tonumber(y),tonumber(z)
	  if what == "vq" or what == "EntityPlayer" then
		 term.setCursorPos(1,2)
		 term.clearLine()
		
		 print(x..", "..y..", "..z)
		 redstone.setOutput("left",true)
		 sleep(0.01)
   end
   redstone.setOutput("left",false)
   sleep(0.01)
end

function checkTargets( Sensor )
   targets = sensors.getAvailableTargetsforProbe(ctrl, Sensor, probe)
   for i,val in ipairs(targets) do
	  what,x,y,z = string.match(val,"([a-z]+), (-?[0-9]+), (-?[0-9]+), (-?[0-9])")
	  if what == "vq" then
		 x,y,z = tonumber(x), tonumber(y), tonumber(z)
print("Position data recorded")
		 sensors.setTarget(ctrl,Sensor,i)
print("Sensor target set")
		 local reading = sensors.getReading(ctrl,Sensor)
print("Getting reading of player")
		
		 local Name = reading.name
		 if string.find("Lying") ~= null then
			LyingPos = vector.new(x,y,z)
		 end
	  end
   end
end

--load APIs
os.unloadAPI("sensors")
os.loadAPI("rom/apis/sensors")
-- wireless
rednet.open("top")
--declare constants
scontrol = sensors.getController()
print("Attaching Sensor Controller on "..scontrol.." side")
avSensors = sensors.getSensors(scontrol)
    --get sensors
sUseSensor = avSensors[1]
avProbes = sensors.getProbes(scontrol, sUseSensor)
    --get probes
sPlayer = avProbes[4]
-- end --
   
while true do
for i,val in ipairs(sensors.getAvailableTargetsforProbe(scontrol,sUseSensor,"LivingEntities")) do
what,x,y,z=string.match(val,"([a-z]+),(-?[0-9]+),(-?[0-9]+),(-?[0-9]+)")
x,y,z=tonumber(x),tonumber(y),tonumber(z)
if (what=="vq") then
rednet.broadcast(""..x..","..y..","..z)
end
end
sleep(0.1)
end

rednet.open("top")
mon = peripheral.wrap("left")
while true do
a,b,c = rednet.receive()
x = 0
y = 0
z = 0
for d, e, f in string.gmatch(b, "(%w+),(%w+),(%w+)")do
x = d
y = e
z = f
end
mon.setCursorPos(1,1)
mon.clear()
mon.write("x: "..x)
mon.setCursorPos(1,2)
mon.write("y: "..y)
mon.setCursorPos(1,3)
mon.write("z: "..z)
end

if (b=='Me' and info['name']==playername) or (b=='Them' and info['name']~=playername) then
  rednet.broadcast(info['name']..ref)
end

local tCDS={
Me={

tc={
x1=590;
x2=590;
y1=5;
y2=5;
z1=283;
z2=283}
};


Them={

trp1={
x1=5;
x2=10;
y1=5;
y2=5;
z1=15;
z2=20}
}}

local function check(info)
for b,a in pairs(tCDS) do
for ref,cds in pairs(a) do
lx=(cds['x1']>=cds['x2'] and cds['x1']) or cds['x2']
sx=(cds['x1']>=cds['x2'] and cds['x2']) or cds['x1']
ly=(cds['y1']>=cds['y2'] and cds['y1']) or cds['y2']
sy=(cds['y1']>=cds['y2'] and cds['y2']) or cds['y1']
lz=(cds['z1']>=cds['z2'] and cds['z1']) or cds['z2']
sz=(cds['z1']>=cds['z2'] and cds['z2']) or cds['z1']
if lx>=info['xCoord'] and sx<=info['xCoord'] and ly>=info['yCoord'] and sy<=info['yCoord'] and lz>=info['zCoord'] and sz<=info['zCoord'] then
rednet.broadcast(ref)
end
end
end
end

rednet.open('top')
local sSide='back'
local sProbe='TargetInfo'
while true do
for _,sSensor in pairs(sensors.getSensors(sSide)) do
for _,sTarget in pairs(sensors.getAvailableTargetsforProbe(sSide,sSensor,sProbe)) do
check(sensors.getSensorReadingAsDict(sSide,sSensor,sTarget,sProbe))
end
end
sleep(0.25)
end