TICTACSERVER

function getPos(x,y,b)
if x==1 then
return b[y]
elseif x==2 then
return b[y+3]
else
return b[y+6]
end
end
function COL(c,b)
print("Checking for coloum win")
if c==1 then
local fp=b[1]
if b[2]==fp and b[3]==fp then
return fp
end
elseif c==2 then
local fp=b[4]
if b[5]==fp and b[6]==fp then
return fp
end
else
local fp=b[7]
if fp==b[8] and b[9]==fp then
return fp
end
return false
end
end
function ROW(r,b)
print("Checking for row win")
local fp=b[r]
if fp==b[r+3] and fp==b[r+6] then
return fp
end
return false
end
function DIAG(d,b)
print("Checking for diagonal win")
if d==1 then
local fp=b[1]
if fp==b[5] and fp==b[9] then
return fp
end
else
local fp=b[3]
if fp==b[5] and fp==b[7] then
return fp
end
return false
end
end

function isWin(b)
print("Checking for win…")
if COL(1,b) then
return COL(1,b)
elseif COL(2,b) then
return COL(2,b)
elseif COL(3,b) then
return COL(3,b)
elseif ROW(1,b) then
return ROW(1,b)
elseif ROW(2,b) then
return ROW(2,b)
elseif ROW(3,b) then
return ROW(3,b)
elseif DIAG(1,b) then
return DIAG(1,b)
elseif DIAG(2,b) then
return DIAG(2,b)
end
return false
end
function isDraw(b)
print("Checking for draw.")
for i=1,9 do
if b[i]==" " then
return false
end
end
return true
end
function fromID(id)
while true do
tid,msg=rednet.receive()
if tid==id then
return msg
end
end
end

--Code Starts Here
function clear()
term.clear()
term.setCursorPos(1,1)
end
clear()
print("Server ID:"..os.getComputerID())
write("Client One:")
cOne=read()+0
write("Client Two:")
cTwo=read()+0
write("Rednet side:")
rednet.open(read())
clear()
write("Game will start in 20 seconds. Please tell clients to connect to server ID:"..os.getComputerID())
sleep(20)
clear()
print("Game started.")
rednet.broadcast("start")
sleep(5)
board={}
for i=1,9 do
board[(i)]=" "
end
turn=true
while true do
if turn then
turn=false
rednet.send(cOne,"Play")
play=fromID(cOne)+0
print("Client one has played.")
if board[play]==" " then
board[play]="X"
rednet.broadcast("Place")
rednet.broadcast(play.."")
rednet.broadcast("X")
end
else
turn=true
rednet.send(cTwo,"Play")
play=fromID(cTwo)+0
print("Client Two has played.")
if board[play]==" " then
board[play]="O"
rednet.broadcast("Place")
rednet.broadcast(play.."")
rednet.broadcast("O")
end
end
if isDraw(board) then
rednet.broadcast("lose")
end
print("DEBUG:Checkpoint 1.")
if isWin(board) =="X" then
rednet.send(cOne,"win")
rednet.send(cTwo,"lose")
elseif isWin(board)=="O" then
rednet.send(cOne,"lose")
rednet.send(cTwo,"win")
end
end