press.lua

--[[
    Some stupid game thing by Mitchfizz05.
    Code under the GNU General Public License v3.
]]

-- Constants.
local version = 1.0
local width,height = term.getSize()

-- Current game variables.
local score = 0
local rounds = 9
local key
local countdown = 10

-- Index of keys.
local keys = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"}

-- Render main menu.
local function mainMenu()
    term.setBackgroundColor(colors.white)
    term.setTextColor(colors.black)
    term.clear()
    term.setCursorPos(1,1)

    term.setBackgroundColor(colors.blue)
    local bar = string.rep(" ", width)
    term.write(bar)
    term.setCursorPos(1,1)
    term.setTextColor(colors.white)
    term.write("Button Press Game Thing")

    term.setBackgroundColor(colors.white)
    term.setTextColor(colors.black)
    term.setCursorPos(1,3)
    print("Welcome to Button Press Game Thing. By Mitchfizz05.")
    print("")
    print(" Press enter key to start!")
end

-- Render countdown.
local function countdownScreen()
    term.setBackgroundColor(colors.white)
    term.setTextColor(colors.black)
    term.clear()
    term.setCursorPos(1,1)

    term.setBackgroundColor(colors.blue)
    local bar = string.rep(" ", width)
    term.write(bar)
    term.setCursorPos(1,1)
    term.setTextColor(colors.white)
    term.write("Button Press Game Thing")

    term.setBackgroundColor(colors.white)
    term.setTextColor(colors.black)
    term.setCursorPos(1,3)
    term.write("Starting in " .. countdown .. " seconds...")
end

-- Render game screen.
local function gameScreen()
    term.setBackgroundColor(colors.white)
    term.setTextColor(colors.black)
    term.clear()
    term.setCursorPos(1,1)

    term.setBackgroundColor(colors.blue)
    local bar = string.rep(" ", width)
    term.write(bar)
    term.setCursorPos(1,1)
    term.setTextColor(colors.white)
    term.write("Button Press Game Thing")

    term.setBackgroundColor(colors.white)
    term.setTextColor(colors.black)
    term.setCursorPos(1,3)
    term.write("Quick! Press... ")
    term.setTextColor(colors.red)
    term.write(key)

    term.setTextColor(colors.purple)
    term.setCursorPos(width - #"score: " - #tostring(score) - 1, 3)
    term.write("Score: " .. score)
end

-- Render time-up screen.
local function timeupScreen()
    term.setBackgroundColor(colors.white)
    term.setTextColor(colors.black)
    term.clear()
    term.setCursorPos(1,1)

    term.setBackgroundColor(colors.blue)
    local bar = string.rep(" ", width)
    term.write(bar)
    term.setCursorPos(1,1)
    term.setTextColor(colors.white)
    term.write("Button Press Game Thing")

    term.setBackgroundColor(colors.white)
    term.setTextColor(colors.black)
    term.setCursorPos(1,3)
    term.write("Time up!")
    term.setCursorPos(3,5)
    term.setTextColor(colors.green)
    term.write("Score: ")
    term.setTextColor(colors.gray)
    term.write(math.floor(score))

    sleep(2)
    term.setCursorPos(1,7)
    term.setTextColor(colors.lightGray)
    term.write("Press any key to exit...")
end

-- Show menu.
mainMenu()
while true do
    local e,p1,p2,p3 = os.pullEvent()
    if e == "key" and p1 == 28 then
        break
    end
end

-- Run countdown.
while (countdown > 0) do
    -- Trololol.
    if countdown > 6 and not countdown == 10 then
        if math.random(1,20) == 1 then
            -- Hehe.
            countdown = 1
        end
    end

    countdownScreen()
    sleep(1)
    countdown = countdown - 1
end

-- Main loop.
while (rounds > 0) do
    -- Pick a random key.
    key = keys[math.random(1, #keys)]

    -- Print message.
    gameScreen()

    os.startTimer( math.random(1,20)/10 )
    while true do
        local e,p1,p2,p3 = os.pullEvent()
        if e == "char" and p1 == key then
            score = score + 2
            gameScreen()
        elseif e == "char" then
            score = score - 1
            gameScreen()
        elseif e == "timer" then
            break
        end
    end

    rounds = rounds - 1
end

-- Game finish.
timeupScreen()

-- Wait for exit.
os.pullEvent("key")

-- Cleanup for exit.
term.setBackgroundColor(colors.black)
term.setTextColor(colors.white)
term.clear()
term.setCursorPos(1,1)