Birb

local vel, x, y = 1, 13, 10
local pX, pYo, pYf = 26, 1, 5
local Score = 0
local Speed = 1

function Paint()
    term.clear()
    paintutils.drawFilledBox(1,1,26,20,colors.cyan)

    -- Clouds
    paintutils.drawFilledBox(1,1,3,1,colors.white)
    paintutils.drawFilledBox(5,2,10,2,colors.white)
    paintutils.drawFilledBox(6,2,8,3,colors.white)
    paintutils.drawFilledBox(17,1,18,1,colors.white)
    paintutils.drawFilledBox(16,4,21,5,colors.white)

    -- Sun
    paintutils.drawFilledBox(23,1,26,2,colors.yellow)

    -- Buildings/Mountains (Not sure what they are)
    paintutils.drawFilledBox(3,14,5,20,colors.lightGray)
    paintutils.drawFilledBox(5,12,7,20,colors.lightBlue)
    paintutils.drawFilledBox(9,13,11,20,colors.pink)
    paintutils.drawFilledBox(11,16,13,20,colors.lime)
    paintutils.drawFilledBox(14,14,16,20,colors.red)

    -- Birb
    paintutils.drawPixel(x,y,colors.orange)

    -- Pipes
    PipeGen()

    --Ground
    paintutils.drawFilledBox(1,18,26,20,colors.brown)

    -- Pond/Puddle
    paintutils.drawLine(18,18,26,18,colors.blue)
    paintutils.drawLine(19,19,26,19,colors.blue)

    if (Speed == 0.01) then
        paintutils.drawPixel(9,10,colors.cyan)
        term.setCursorPos(9,10)
        term.setTextColor(colors.red)
        term.write("GAME OVER")
    end

    --Score
    paintutils.drawPixel(13,1,colors.cyan)
    term.setCursorPos(13,1)
    term.setTextColor(colors.white)
    term.write(Score)
end

function Physics()

    if (x==pX) then
        if (y<pYo or y>=pYf) then -- Game over
            Speed = 0.01
        else
            Score =Score+1
            Speed=Speed+0.1
        end
    elseif (y>=17) then -- Game over
        Speed = 0.01
    end

    y=y+vel
end

function PipeGen()
    paintutils.drawLine(pX,1,pX,pYo,colors.green) -- Top pipe
    paintutils.drawLine(pX,pYf,pX,20,colors.green) -- Bottom pipe

    pX=pX-1
    if (pX<=0) then
        pX = 26

        local r = math.random(2,16)
        pYo = r-2
        pYf = r+2
    end
end

-- Main --
while(true) do
    parallel.waitForAny(function()
        if (Speed>0.01) then
            Physics()
            Paint()
        end
        sleep(0.5/Speed)
    end,
    function()
        os.pullEvent("key")
        if (Speed>0.01) then
            y=y-2
        end
    end,
    function()
        os.pullEvent("mouse_click")
        if (Speed>0.01) then
            y=y-2
        end
    end)
end