ccrain

local speed = 10
--ccRain by CosmoConsole for ComputerCraft

term.clear()
term.setCursorPos(1,10)
print("C")
os.sleep(0.05)
print(" C")
os.sleep(0.05)
print("  R")
os.sleep(0.05)
print("   A")
os.sleep(0.05)
print("    I")
os.sleep(0.05)
print("     N")
os.sleep(0.05)
local function saferandom(x,y)
 if x==y then
  return x
 end
 return math.random(x,y)
end
term.setCursorPos(1,19)
for i=1,12 do
 print(" ")
 os.sleep(0.05)
end
local currently = 0
local currentX = 0
local currentY = 0
local currentL = 0
local rows = {}
for i=1,51 do
 rows[i]=0
end
term.clear()
local render = 0
local maxDist = 15
while true do
 render = 1
 if currently == 0 then
  currentY = 1
  currentX = math.random(51)
  currently = 1
  maxDist = 15
  currentL = 64 + math.random(26)
  currentC = math.random(1,14)
  currentC = math.pow(2,currentC)
 else
  if currentY == (19 - rows[currentX]) then
   currently = 0
   rows[currentX]=rows[currentX]+1
   render = 0
   if rows[currentX]==20-speed then
    for i=1,20 do
     term.setCursorPos(1,19)
     print(" ")
     sleep(0.05)
    end
    for i=1,51 do
     rows[i] = 0
    end
   end
  else
   term.setCursorPos(currentX,currentY)
   write(" ")
   currentY = currentY + math.min(maxDist,speed)
   maxDist = (19 - rows[currentX]) - currentY
  end
 end
 if render == 1 then
  if term.isColor() then
   term.setTextColor(currentC)
  end
  term.setCursorPos(currentX,currentY)
  write(string.char(currentL))
 end
 os.startTimer(0.05)
 local k = os.pullEvent()
 if k == "key" then
  term.clear()
  term.setCursorPos(1,2)
  error()
 end
end