pico-8 cartridge // http://www.pico-8.com
version 41
__lua__

local races = {
  { 7, 9 },
  { 15, 40 },
  { 30, 200 }
}

printh("")
printh("aoc 2023 6")
printh("")

function get_dist(race, t)
  return (race[1] - t) * t
end

function trace()
  line(1, 126, 127, 126, 13)
  line(1, 126, 1, 1, 13)
  print("distance", 3, 1, 8)
  local x, y
  for race in all(races) do
    local md = 0 ym = 0 xm = 0 bt = 0 pd = 0
    line(2, 126 - race[2] / 2, 127, 126 - race[2] / 2, 2)
    print("time", 80, 114, 15)
    print("pressed", 80, 121, 15)
    line()
    for i = 0, race[1] do
      local dist = get_dist(race, i)
      x = 1 + i * 4
      y = 126 - dist / 2
      if dist > md then
        md = dist xm = x ym = y
      end
      line(x, y, 7)
      yield()
      if pd > dist and bt == 0 then bt = i - 1 end
      pd = dist
    end
    print(md .. "MM", xm - 2, ym - 6, 8)
    print(bt .. "MS", xm + 20, ym - 6, 15)
    --	print(race[2],50,126-race[2]/2-6,2)
  end
end

local co = cocreate(trace)

cls()

function _update()
  coresume(co)
end

__gfx__
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