game thing

-- RPG Game --

w,h = term.getSize()
clr = function() term.clear() end
cp = function(x,y) return term.setCursorPos(x,y) end
setText = function(col) return term.setTextColor(col) end
setBack = function(col) return term.setBackgroundColor(col) end

debug, running, run = false, true, false
player_x, player_y, direction = math.ceil(w/2), math.ceil(h/2), 1
gamemode = 0
console, consoleText = false, ""
godmode = false
ai = {}
speed = 1

function colDetection()
    if godmode then return 0 end
    for i=1, #ai do
        if player_x == ai[i][1] and player_y == ai[i][2] then return 1 end
        --cp(ai[i][1], ai[i][2]) write("O") --<< DEBUG COLLISION
    end
    return 0
end

function drawAI()
    for i=1, #ai do
        if ai[i] ~= nil then
            paintutils.drawPixel(ai[i][1], ai[i][2], colors.black)

            if math.random(1,2) == 1 then -- up and down
                if math.random(1,2) == 1 then
                    ai[i][1] = ai[i][1] + 1
                else
                    ai[i][1] = ai[i][1] - 1
                end
            else -- left or right
                if math.random(1,2) == 1 then
                    ai[i][2] = ai[i][2] + 1
                else
                    ai[i][2] = ai[i][2] - 1
                end
            end
            if ai[i][1] > w then ai[i][1] = 1 end
            if ai[i][1] < 1 then ai[i][1] = w end
            if ai[i][2] > h-1 then ai[i][2] = 1 end
            if ai[i][2] < 1 then ai[i][2] = h-1 end

            paintutils.drawPixel(ai[i][1], ai[i][2], colors.red)
        end
    end
    updateBar()
end

function AIscript()
    if gamemode == 0 then
        while true do
            if #ai == 0 then
                sleep(3)
                for i=1, 20 do
                    ai[i] = {}
                    ai[i][1], ai[i][2] = math.random(1,w), math.random(1,h-1)
                end
            end
            drawAI()
            if colDetection() == 1 then run = false break end
            sleep(speed)
        end
    end
end

function attack()
    moves = {
        function() -- 3x3
            if direction == 1 then
                --
            elseif direction == 2 then
                --
            elseif direction == 3 then
                --
            else
                --
            end
        end,
    }
end

function PLAYERscript()
    if gamemode == 0 then
        function drawPlayer()
            local tab = {string.char(24), string.char(26), string.char(25), string.char(27)}
            --paintutils.drawPixel(player_x,player_y,colors.white)
            setText(colors.gray) setBack(colors.white) cp(player_x,player_y)
            write(tab[direction])
        end
        local update = true
        while run do
            if update then
                update = false
                drawPlayer()
                if colDetection() == 1 then run = false break end
            end
            a,i = os.pullEvent("key")
            if not console then
                if i == keys.w or i == keys.up then
                    paintutils.drawPixel(player_x,player_y,colors.black) if player_y == 1 then player_y = h-1 else player_y = player_y - 1 end direction = 1 update = true
                elseif i == keys.d or i == keys.right then
                    paintutils.drawPixel(player_x,player_y,colors.black) if player_x == w then player_x = 1 else player_x = player_x + 1 end direction = 2 update = true
                elseif i == keys.s or i == keys.down then
                    paintutils.drawPixel(player_x,player_y,colors.black) if player_y == h-1 then player_y = 1 else player_y = player_y + 1 end direction = 3 update = true
                elseif i == keys.a or i == keys.left then
                    paintutils.drawPixel(player_x,player_y,colors.black) if player_x == 1 then player_x = w else player_x = player_x - 1 end direction = 4 update = true
                elseif i == keys.e or i == keys.space then
                    attack()
                elseif i == keys.q then
                    run = false
                end
            end
        end
    end
end

function displayConsole()
    if console then
        paintutils.drawLine(1,1,w,1,colors.gray) setText(colors.lightGray)
        cp(1,1) write("> ")
        setText(colors.white) write(consoleText)
    else
        paintutils.drawLine(1,1,w,1,colors.black)
    end
end

function toggleConsole()
    consoleText = ""
    console = not console
    displayConsole()
    sleep(.2)
end

function CONSOLEscript() -- for toggling
    while true do
        a,i = os.pullEvent("char")
        if i == "`" then
            toggleConsole()
        end
    end
end

function runCMD()
    cmd = {
        exit = function()
            run = false
        end,
        gm = function()
            godmode = not godmode
        end,
    }
    if cmd[consoleText] ~= nil then cmd[consoleText]() end
end

function CONSOLEaction() -- for typing
    while true do
        if console then
            while console do
                a,i = os.pullEvent()
                sleep(.0001)
                if a == "key" then
                    if i == keys.enter then
                        runCMD()
                        toggleConsole()
                    elseif i == keys.backspace then
                        consoleText = string.sub(consoleText, 1, -2) displayConsole()
                    end
                elseif a == "char" then
                    if i == "`" then
                        --sleep(1)
                    else
                        if string.len(consoleText) < w-5 then consoleText = consoleText..i end displayConsole()
                    end
                end
            end
        else
            sleep(1)
        end
    end
end

function CONSOLEupdate() -- for display
    while true do
        repeat sleep(1) until console == true
        repeat displayConsole() sleep(.2) until console == false
    end
end

function drawBar()
    paintutils.drawLine(1,h,w,h,colors.gray)
end

function updateBar()
    cp(1,h) setText(colors.lightGray) setBack(colors.gray) write(#ai.."/20")
end

function rungame()
    run = true
    w,h = term.getSize() -- for updating reasons
    player_x, player_y = math.ceil(w/2),math.ceil(h/2) -- same for updating reasons
    drawBar()
    if gamemode == 0 then
        parallel.waitForAny(AIscript, PLAYERscript, CONSOLEscript, CONSOLEaction, CONSOLEupdate)
    end
    --clr() cp(1,1) -- Terminates
end

function main()
    rungame()
end

clr()
main()
setBack(colors.black) setText(colors.white)
clr() cp(1,1) print("Exited! :)") sleep(.2)