Monitor_Animation

local X, Y, DIRECTION, LONGUEUR, COULEUR = 1, 2, 3, 4, 5
local NORD, EST, SUD, OUEST = 1, 2, 3, 4

term.clear()
term.setBackgroundColor(1)
term.setTextColor(32768)
term.clear()
term.setCursorPos(1,1)

local monitor = peripheral.wrap( "top" )
local W, H = monitor.getSize()
local lines = { }

function createLine(lines)
    direction = math.random(1,4)
    if direction == NORD then
        x = math.random(1,W)
        y = H
    elseif direction == EST then
        x = 1
        y = math.random(1,H)
    elseif direction == SUD then
        x = math.random(1,W)
        y = 1
    elseif direction == OUEST then
        x = W
        y = math.random(1,H)
    end

    line = {x, y, direction, math.random(2,6), math.random(1,32769)}
    -- line = {2, 10, 1, 2, colors.black}
    table.insert(lines, line)
end

function moveLines(lines)
    for i, l in ipairs(lines) do
        if l[DIRECTION] == NORD then
            if inBounds(l[X],l[Y]-l[LONGUEUR]) then
                paintutils.drawPixel(l[X],l[Y], colors.white)
                paintutils.drawPixel(l[X],l[Y]-l[LONGUEUR], l[COULEUR])
                l[Y] = l[Y]-1
            elseif inBounds(l[X],l[Y]-l[LONGUEUR]) == false and l[LONGUEUR]>1 then
                l[LONGUEUR] = l[LONGUEUR]-1
                paintutils.drawPixel(l[X],l[Y], colors.white)
                paintutils.drawPixel(l[X],l[Y]-l[LONGUEUR], l[COULEUR])
                l[Y] = l[Y]-1
            else
                table.remove(lines,i)
            end
        elseif l[DIRECTION] == EST then
            if inBounds(l[X]+l[LONGUEUR],l[Y]) then
                paintutils.drawPixel(l[X],l[Y], colors.white)
                paintutils.drawPixel(l[X]+l[LONGUEUR],l[Y], l[COULEUR])
                l[X] = l[X]+1
            elseif inBounds(l[X]+l[LONGUEUR],l[Y]) == false and l[LONGUEUR]>1 then
                l[LONGUEUR] = l[LONGUEUR]-1
                paintutils.drawPixel(l[X],l[Y], colors.white)
                paintutils.drawPixel(l[X]+l[LONGUEUR],l[Y], l[COULEUR])
                l[X] = l[X]+1
            else
                table.remove(lines,i)
            end
        elseif l[DIRECTION] == SUD then
            if inBounds(l[X],l[Y]-l[LONGUEUR]) then
                paintutils.drawPixel(l[X],l[Y], colors.white)
                paintutils.drawPixel(l[X],l[Y]+l[LONGUEUR], l[COULEUR])
                l[Y] = l[Y]+1
            elseif inBounds(l[X],l[Y]+l[LONGUEUR]) == false and l[LONGUEUR]>1 then
                l[LONGUEUR] = l[LONGUEUR]-1
                paintutils.drawPixel(l[X],l[Y], colors.white)
                paintutils.drawPixel(l[X],l[Y]+l[LONGUEUR], l[COULEUR])
                l[Y] = l[Y]+1
            else
                table.remove(lines,i)
            end
        elseif l[DIRECTION] == OUEST then
            if inBounds(l[X]-l[LONGUEUR],l[Y]) then
                paintutils.drawPixel(l[X],l[Y], colors.white)
                paintutils.drawPixel(l[X]-l[LONGUEUR],l[Y], l[COULEUR])
                l[X] = l[X]-1
            elseif inBounds(l[X]-l[LONGUEUR],l[Y]) == false and l[LONGUEUR]>1 then
                l[LONGUEUR] = l[LONGUEUR]-1
                paintutils.drawPixel(l[X],l[Y], colors.white)
                paintutils.drawPixel(l[X]-l[LONGUEUR],l[Y], l[COULEUR])
                l[X] = l[X]-1
            else
                table.remove(lines,i)
            end
        end

    end


end

function inBounds(x,y)
    if x>=0 and x<=W+1 and y>=0 and y<=H+1 then
        return true
    end
    return false
end

createLine(lines)
createLine(lines)
createLine(lines)
createLine(lines)

while table.getn(lines) ~= 0 do
    if table.getn(lines) < 40 then
        createLine(lines)
    end
    moveLines(lines)
    sleep(0.01)
end