tic tac toe(old)

--tic tac toe
----SETTINGS----
size=9 --size of field
len=5  --length of line which you must solve
----------------

tex={
 x={"▄   ▄",
    " ▀▄▀ ",
    "▄▀ ▀▄",
 },
 o={"  ▄  ",
    "▄▀ ▀▄",
    " ▀▄▀ "
 }
}
isEnded=false
turn="x"
nextTurn={x="o",o="x"}
local event=require("event")
local gpu=require("component").gpu
map={}

for i=1,size*size do
  map[i]=" "
end
function toXY(num)
  local y=math.floor((num-1)/size)+1
  return num-(y-1)*size,y
end
function fromXY(x,y)
  return (y-1)*size+x
end
function win(s)
  gpu.set(90,1,"WIN: "..s)
  isEnded=true
end
function draw(name,x,y)
  if name=="x" then
    gpu.setForeground(0x0000ff)
  elseif name=="o" then
    gpu.setForeground(0xff0000)
  else
    return
  end
  for i=1,3 do
    gpu.set(x,y+i-1,tex[name][i])
  end
  gpu.setForeground(0xffffff)
end
function drawField()
  for y=1,size do
    if y~=size then
      gpu.set(1,y*4,string.rep("▄",8*size-1))
--      gpu.set(y*9,1,string.rep("█",4*size),true)
    end
    for x=1,size do
      draw(map[fromXY(x,y)],(x-1)*8+2,(y-1)*4+1)
    end
  end
  for y=1,size-1 do
      gpu.set(y*8,1,string.rep("█",4*size),true)
  end
end
require("term").clear()
drawField()
--os.exit()

function onClick(_,_,x,y,_,name)
  if isEnded then
    return false
  end
  xC=math.floor(x/8)+1
  yC=math.floor((y-1)/4)+1
--  gpu.set(1,1,xC.." "..yC)
  if (xC>size)or(yC>size) then
    return
  end
  num=fromXY(xC,yC)
  if map[num]~=" " then
    return
  end
  map[num]=turn
  for i=1,size do
    for j=1,size do
      if (i<=size-len+1)and(j<=size-len+1) then
        bool1,bool2=true,true
        s=map[fromXY(i,j)]
        s2=map[fromXY(i+len-1,j)]
        if s==" " then
          bool1=false
        end
        if s2==" " then
          bool2=false
        end
        for x=0,len-1 do
          if map[fromXY(i+x,j+x)]~=s then
            bool1=false
          end
--          io.write(i+len-x-1,j+x,map[fromXY(i+len-x-1,j+x)]," ")
          if map[fromXY(i+len-x-1,j+x)]~=s2 then
            bool2=false
          end
        end
        if (bool1)or(bool2) then
          win((bool1 and s)or(bool2 and s2))
          break
        end
      end
      if i<=size-len+1 then
        bool=true
        s=map[fromXY(i,j)]
        if s==" " then
          bool=false
        end
        for x=0,len-1 do
          if map[fromXY(i+x,j)]~=s then
            bool=false
            break
          end
        end
        if bool then
          win(s)
          break
        end
      end
      if j<=size-len+1 then
        bool=true
        s=map[fromXY(i,j)]
        if s==" " then
          bool=false
        end
        for x=0,len-1 do
          if map[fromXY(i,j+x)]~=s then
            bool=false
            break
          end
        end
        if bool then
          win(s)
          break
        end
      end
    end
  end
  turn=nextTurn[turn]
  drawField()
--  gpu.set(1,1,turn)
end

event.listen("touch",onClick)
while true do
  _,_,_,_,name=event.pull("key_down")
  if name=="astral17" then
    break
  end
end
event.ignore("touch",onClick)