function drawCircle(r,timeperc)
--if you set the background and colors before calling the function
--and remove the term.clear()
--the clock will fill like a pie chart

term.setBackgroundColor(colors.white);
term.clear();
term.setBackgroundColor(colors.black);
term.setCursorBlink(false);

linedrawn = false;

sx,sy = term.getSize();
sx = math.floor(sx/2);
sy = math.floor(sy/2);

--These numbers are to do with the number of radians the algorithim needs to cycle through to draw a complete circle
--the offset is to make it start at the top of the screen

for i = 4.67,7.18 + 4.67,0.01 do

  --circle plotting alogrithim
  plotx = sx+1 + r*math.cos(i) *1.6;
  ploty = sy+1 + r*math.sin(i);

  term.setCursorPos(plotx,ploty);

  --I cant figure out why I need 1.88 instead of 2, be nice and help me with this...
  perc = timeperc/1.88;
  if(i > (4.67 + perc * (7.18 + 4.67)) and linedrawn == false) then
   drawLine({sx,sy},{plotx,ploty});
   linedrawn = true;
  end

  term.write(" ");

end
end
function drawLine(pt1,pt2)
p = pt2[1];
h = pt1[1];
q = pt2[2];
k = pt1[2];
for i = 0,1,0.01 do
  x = (p-h)*i + h;
  y = (q - k)*i + k;
  term.setCursorPos(x,y);
  term.write(" ");
end
end
term.redirect(peripheral.wrap("right"));
while(true)do
drawCircle(14,os.time()/24);
os.sleep(0.0001);--to stop jittering
end
term.setCursorPos(1,1);