vaisseaubashaut

m = peripheral.wrap("bottom")

m.setTextScale(0.5)
x,y = m.getSize()
print(x..":"..y)

iter = 0
text = "<====8"
items = {}
stars = {}
starsNbr = 150

function registerStars()
    stars = {}
    for i=1,starsNbr do
        toAdd = {}
        toAdd["x"] = math.random(1,x)
        toAdd["y"] = math.random(1,y)
        table.insert(stars, toAdd)
    end
end

function forwardStars()
    for k,v in pairs(stars) do
        stars[k]["y"] = stars[k]["y"]-1
    end
    for i=1,10 do
        toAdd = {}
        toAdd["y"] = y
        toAdd["x"] = math.random(1,x)
        if math.random(1,100) > 90 then table.insert(stars,toAdd) end
    end
end

function drawStars()
    for k,v in pairs(stars) do
        m.setCursorPos(v["x"],v["y"])
        if math.random(1,100) > 70 then m.setTextColor(colors.gray) end
        m.write(".")
    end
end

function redraw()
    m.clear()
    m.setTextColor(colors.gray)
    drawStars()
    m.setTextColor(colors.lightGray)
    --for k,v in pairs(items) do
    --  items[k]["x"] = v["x"]+1
    --  m.setCursorPos(v["x"],v["y"])
    --  m.write(text)
    --  if v["x"] > x then table.remove(items,k) end
    --end
end

function addPlot()
    h = math.random(1,y)
    add = {}
    add["x"] = 1
    add["y"] = h
    table.insert(items,add)
end

registerStars()
while true do
    iter = iter + 1
    redraw()
    os.sleep(0.05)
    --if iter % 14 == 0 then addPlot() end
    if iter % 20 == 0 then forwardStars() end
end