FlappyPixel

------------FlappyBird v1.0----------
----------------Game-----------------
--------------by Creator-------------

--Variables--
term.redirect(term.native())
local w,h = term.getSize()
local dead = false
local defaultConfing = {
    birdColor = colors.yellow,
    bgColor = colors.lightBlue,
    grassColor = colors.green,
    scoreColor = colors.red,
    obstacleColor = colors.blue
}
local obstacles = {}
local currObstacle = 0
local totalLenght = 0
local howFar = 0

--PhysicsVars--
local position = math.floor(h/2)
local G = 30
local maxSpeed = 20
local speed = maxSpeed
local position = 1
local totalTime = 0
local diff = 0.05
local xPos = math.floor(w/6)

--Functions--
local GUI = {}
local Physics = {}
local Events = {}

--GUI related functions--

function GUI.DrawBird()
    term.setCursorPos(xPos,h-position)
    term.setBackgroundColor(defaultConfing.birdColor)
    term.write("@")
end

function GUI.DrawBackground()
    term.setBackgroundColor(defaultConfing.bgColor)
    term.clear()
    term.setCursorPos(1,1)
    term.setTextColor(defaultConfing.scoreColor)
    term.write("You have passed "..tostring(currObstacle).." obstacles!")
    paintutils.drawLine(1,h,w,h,defaultConfing.grassColor)
end

function GUI.DrawObstacles()
    for i,v in pairs(obstacles) do
        local totalFar = v[1] + howFar
        if 0 < totalFar and totalFar <= w then
            paintutils.drawLine(totalFar,1,totalFar,v[3],defaultConfing.obstacleColor)
            paintutils.drawLine(totalFar,v[2]+v[3]-1,totalFar,h-1,defaultConfing.obstacleColor)
            if totalFar == xPos then
                currObstacle = currObstacle + 1
                if (1 <= h - position and h - position <= v[3]) or (v[2]+v[3]-1 <= h - position and h - position <= h-1) then
                    dead = true
                end
            end
        end

    end
end

--Physics related functions--

function Physics.BirdMove()
    position = position + speed*diff - 0.5*G*math.pow( diff, 2 )
    speed = speed - G*diff
end

function Physics.KeepInBoundaries()
    if position <= 0 then
        dead = true
    elseif position > h-2 then
        speed = 0
        position = h-2
    end
end

function Physics.GenerateObstacles(howMany)
    for i=1,howMany do
        totalLenght = totalLenght + math.random(35,70)
        local opening = math.random(5,15)
        local whereOpen = math.random(1,h-opening)
        obstacles[#obstacles + 1] = {totalLenght,opening,whereOpen}
    end
end

function Events.main()
    local timer = os.startTimer(.2)
    local event, p2 = os.pullEvent()
    if event == "key" and p2 == keys.space then
        os.cancelTimer(timer)
        speed = maxSpeed
    end
end

--Code--

--[[f = fs.open("FlappyBirdConfig/configs","r")
configurationBuffer = f.readAll()
f.close()]]--

Physics.GenerateObstacles(100)

while true do
    if dead == true then
        error("you died")
    end
    Events.main()
    GUI.DrawBackground()
    GUI.DrawBird()
    GUI.DrawObstacles()
    Physics.BirdMove()
    Physics.KeepInBoundaries()
    --Physics.DetectColision()
    howFar = howFar - 1
end