Check Winner Naughts and Crosses game - Lua/Corona - lua

Question

I am quite new to the Lua language and am trying to create a simple Tic Tac Toe game. I am having difficulties figuring out how to check the winner. I have tried if-then statements but I think I am using them wrong. Not sure what the best way to check the winner is so any suggestions or assistance is greatly appreciated.
The code is -
local composer = require( "composer" )
local scene = composer.newScene()
d = display
w20 = d.contentWidth * .2
h20 = d.contentHeight * .2
w40 = d.contentWidth * .4
h40 = d.contentHeight * .4
w60 = d.contentWidth * .6
h60 = d.contentHeight * .6
w80 = d.contentWidth * .8
h80 = d.contentHeight * .8
----DRAW LINES FOR BOARD
local lline = d.newLine(w40,h20,w40,h80 )
lline.strokeWidth = 5
local rline = d.newLine(w60,h20,w60,h80 )
rline.strokeWidth = 5
local bline = d.newLine(w20,h40,w80,h40 )
bline.strokeWidth = 5
local tline = d.newLine(w20,h60,w80,h60 )
tline.strokeWidth = 5
--PLACE BOARD COMPARTMENT DIMENSIONS IN TABLE
board ={
{"tl",1,w20,h40,w40,h20,0},
{"tm",2,w40,h40,w60,h20,0},
{"tr",3,w60,h40,w80,h20,0},
{"ml",4,w20,h60,w40,h40,0},
{"mm",5,w40,h60,w60,h40,0},
{"mr",6,w60,h60,w80,h40,0},
{"bl",7,w20,h80,w40,h60,0},
{"bm",8,w40,h80,w60,h60,0},
{"br",9,w60,h80,w80,h60,0}
}
--
local EMPTY, X, O = 0, 1, 2
local whichTurn = 0
--FILL COMPARTMENT W/ COLOUR WHEN TOUCHED
local function fill(event)
if (event.phase == "ended") then
for t = 1,9 do
if event.x > board[t][3] and event.x < board[t][5] then
if event.y < board[t][4] and event.y > board[t][6] then
if board[t][7] == EMPTY then
if whichTurn == 1 then
whichTurn = 2
else
whichTurn = 1
end
board[t][7] = whichTurn
if board[t][7] == 1 then
local xText = display.newText("X", board[t][3], board[t][4], "Arial", 80)
xText.anchorX = 0
xText.anchorY = 100
elseif board[t][7] == 2 then
local oText = display.newText("O", board[t][3], board[t][4], "Arial", 80)
oText.anchorX = 0
oText.anchorY = 100
end
end
end
end
end
end
local function checkWinner()
for i = 1,9 do
if board[i][2] == 1 and board[i][7] == 1 then
boxOne = "x"
end
if board[i][2] == 2 and board[i][7] == 1 then
boxTwo = "x"
end
if board[i][2] == 3 and board[i][7] == 1 then
boxThree = "x"
end
if boxOne == "x" and boxTwo == "x" and boxThree == "x" then
display.newText("Winner", 10, 100, "Arial", 200)
end
end
end
end
Runtime:addEventListener ("touch", fill)
return scene

Answer 1

local All_Lines = {{1,5,9}, {3,5,7}, {1,2,3}, {4,5,6}, {7,8,9}, {1,4,7}, {2,5,8}, {3,6,9}}
local function checkWinner()
for _, Line in ipairs(All_Lines) do
local values = 0
for _, idx in ipairs(Line) do
values = values * 10 + board[idx][7]
end
if values == 111 then
display.newText("Winner", 10, 100, "Arial", 200)
return
elseif values == 222 then
display.newText("Loser", 10, 100, "Arial", 200)
return
end
end
end