nyan

shell.run ("clear")
print ("Seconds?")
counter = read()*20
shell.run ("clear")

term.clear()
term.setCursorPos(1,1)

local star = {}
star.__index = star

local minX = 1
local maxX = 10
local monWidth, monHeight = term.getSize()

function star.create()
    local acnt = {}
    setmetatable(acnt,star)

    mx = math.floor(monWidth+2)
    my = math.floor(math.random(1,monHeight))

    acnt.x = mx
    acnt.y = my
    acnt.speed = math.floor(math.random(1,4))
    acnt.pos =math.floor(math.random(minX,maxX))
    return acnt
end

function rawWriteLoc(x,y,sText)
    term.setCursorPos(x,y)
    term.write(sText)
end

function star:clear()
if self.pos == 1 then
    rawWriteLoc(self.x,self.y," ")
    elseif (self.pos == 2) or (self.pos == 3) or (self.pos == 4) or (self.pos == 8) or (self.pos == 9) or (self.pos == 10) then

    rawWriteLoc(self.x-1,self.y-1,"   ")
    rawWriteLoc(self.x-1,self.y,  "   ")
    rawWriteLoc(self.x-1,self.y+1,"   ")
    elseif (self.pos == 5) or (self.pos == 6) or (self.pos == 7) then

    rawWriteLoc(self.x-2,self.y-2,"     ")
    rawWriteLoc(self.x-2,self.y-1,"     ")
    rawWriteLoc(self.x-2,self.y,  "     ")
    rawWriteLoc(self.x-2,self.y+1,"     ")
    rawWriteLoc(self.x-2,self.y+2,"     ")
    end
end

function star:draw()
if self.pos == 1 then
    rawWriteLoc(self.x,self.y,"+")
    elseif self.pos == 2 then

    rawWriteLoc(self.x-1,self.y-1," | ")
    rawWriteLoc(self.x-1,self.y,  "-+-")
    rawWriteLoc(self.x-1,self.y+1," | ")
    elseif self.pos == 3 then

    rawWriteLoc(self.x-1,self.y-1," | ")
    rawWriteLoc(self.x-1,self.y,  "- -")
    rawWriteLoc(self.x-1,self.y+1," | ")

    elseif self.pos == 4 then

    rawWriteLoc(self.x-1,self.y-1,"/-\\")
    rawWriteLoc(self.x-1,self.y,  "| |")
    rawWriteLoc(self.x-1,self.y+1,"\\-/")

    elseif self.pos == 5 then

    rawWriteLoc(self.x-2,self.y-2,"  |  ")
    rawWriteLoc(self.x-2,self.y-1," / \\ ")
    rawWriteLoc(self.x-2,self.y,  "-   -")
    rawWriteLoc(self.x-2,self.y+1," \\ / ")
    rawWriteLoc(self.x-2,self.y+2,"  |  ")

    elseif self.pos == 6 then

    rawWriteLoc(self.x-2,self.y-2," /-\\ ")
    rawWriteLoc(self.x-2,self.y-1,"/   \\")
    rawWriteLoc(self.x-2,self.y,  "|   |")
    rawWriteLoc(self.x-2,self.y+1,"\\   /")
    rawWriteLoc(self.x-2,self.y+2," \\-/ ")

    elseif self.pos == 7 then

    rawWriteLoc(self.x-2,self.y-2,"  |  ")
    rawWriteLoc(self.x-2,self.y-1," / \\ ")
    rawWriteLoc(self.x-2,self.y,  "-   -")
    rawWriteLoc(self.x-2,self.y+1," \\ / ")
    rawWriteLoc(self.x-2,self.y+2,"  |  ")

    elseif self.pos == 8 then

    rawWriteLoc(self.x-1,self.y-1,"/-\\")
    rawWriteLoc(self.x-1,self.y,  "| |")
    rawWriteLoc(self.x-1,self.y+1,"\\-/")

    elseif self.pos == 9 then

    rawWriteLoc(self.x-1,self.y-1," | ")
    rawWriteLoc(self.x-1,self.y,  "- -")
    rawWriteLoc(self.x-1,self.y+1," | ")

    elseif self.pos == 10 then

    rawWriteLoc(self.x-1,self.y-1," | ")
    rawWriteLoc(self.x-1,self.y,  "-+-")
    rawWriteLoc(self.x-1,self.y+1," | ")
    end
end

function star:move()
self.x = self.x - self.speed
return self.x > -4
end

function Addstar()
local new = star.create()
local x = #star+1
star[x] = new
return new,x
end

function RenderStar()
local i,w = 1
for i,w in ipairs(star) do
    w:draw()
    end
end

function MoveStar()
local i,w = 1
for i,w in ipairs(star) do
    w:clear()
    if (math.random(1,6) < 4) then
        w.pos = w.pos +1
        if w.pos > maxX then w.pos = minX end
        end
    if not w:move() then
       star[i] = star[#star]
       star[#star] = nil
       end
    end
end

local catnr = 1
local catmax = 6
local catmin = 1
local catx = 0
local caty = math.floor((monHeight-4)/2)


function DrawCat()
if catnr == 1 then

    rawWriteLoc(catx,caty,  "--.__.--.__.--.__.--,------,  ")
    rawWriteLoc(catx,caty+1,"--.__.--.__.--.__.--|   /\\_/\\ ")
    rawWriteLoc(catx,caty+2,"--.__.--.__.--.__.-~|__( ^ .^)")
    rawWriteLoc(catx,caty+3,"--.__.--.__.--.__.--\"\"  \"\" ")

    elseif catnr == 2 then

    rawWriteLoc(catx,caty,  "-.__.--.__.--.__.--.,------,  ")
    rawWriteLoc(catx,caty+1,"-.__.--.__.--.__.--.|   /\\_/\\ ")
    rawWriteLoc(catx,caty+2,"-.__.--.__.--.__.--~|__( ^ .^)")
    rawWriteLoc(catx,caty+3,"-.__.--.__.--.__.--. \"\"  \"\" ")

    elseif catnr == 3 then

    rawWriteLoc(catx,caty,  ".__.--.__.--.__.--._,------,  ")
    rawWriteLoc(catx,caty+1,".__.--.__.--.__.--._|   /\\_/\\ ")
    rawWriteLoc(catx,caty+2,".__.--.__.--.__.--.~|__( ^ .^)")
    rawWriteLoc(catx,caty+3,".__.--.__.--.__.--._ \"\"  \"\" ")

    elseif catnr == 4 then

    rawWriteLoc(catx,caty,  "__.--.__.--.__.--.__,------,  ")
    rawWriteLoc(catx,caty+1,"__.--.__.--.__.--.__|   /\\_/\\ ")
    rawWriteLoc(catx,caty+2,"__.--.__.--.__.--._~|__( ^ .^)")
    rawWriteLoc(catx,caty+3,"__.--.__.--.__.--.__ \"\"  \"\" ")

    elseif catnr == 5 then

    rawWriteLoc(catx,caty,  "_.--.__.--.__.--.__.,------,  ")
    rawWriteLoc(catx,caty+1,"_.--.__.--.__.--.__.|   /\\_/\\ ")
    rawWriteLoc(catx,caty+2,"_.--.__.--.__.--.__~|__( ^ .^)")
    rawWriteLoc(catx,caty+3,"_.--.__.--.__.--.__.\"\"  \"\" ")

    elseif catnr == 6 then

    rawWriteLoc(catx,caty,  ".--.__.--.__.--.__.-,------,  ")
    rawWriteLoc(catx,caty+1,".--.__.--.__.--.__.-|   /\\_/\\ ")
    rawWriteLoc(catx,caty+2,".--.__.--.__.--.__.~|__( ^ .^)")
    rawWriteLoc(catx,caty+3,".--.__.--.__.--.__.-\"\"  \"\" ")

    end


catnr = catnr + 1
if catnr > catmax then catnr = catmin end
end

for i = 0, counter do
    if (math.random(1,6) < 4) then
        Addstar()
        end
    MoveStar()
    RenderStar()
    DrawCat()
    sleep(0.05)
    end
shell.run ("clear")