Platform

-- 0 = AIR --
-- 1 = WALLS --
-- 2 = DOORS --
-- 3 = SPRITE --

x,y = term.getSize() -- Gets size of Current Computer Screen
if x ~= 51 or y ~= 19 then
    error("SCREEN SIZE NOT AVALIBLE. 51 BY 19") -- Gives error if screen is bigger or smaller than 51 by 19 (colored or not).
end
function cls() shell.run("clear") end -- Short way of clearing the screen
sx = 1
repeat
    cls()
    term.setCursorPos(sx,1)
    print("Platformer Created by Just Does Games") -- splash screen. DO NOT REMOVE WITHOUT CONSENT FROM ME OR ELSE COPYRIGHT
    print("Version 1.0.0")
    sleep(.01) -- SAME FROM ABOVE APPLIES TO THIS LINE HERE TOO
    sx = sx + 1
until sx == 15
repeat
    cls()
    term.setCursorPos(sx,1)
    print("Platformer Created by Just Does Games") -- splash screen. DO NOT REMOVE WITHOUT CONSENT FROM ME OR ELSE COPYRIGHT
    print("Version 1.0.0")
    sleep(.01) -- SAME FROM ABOVE APPLIES TO THIS LINE HERE TOO
    sx = sx - 1
until sx == 0
sleep(.5)
cls() -- Ignore
write("Error Code: ") -- Ignore This 2
room_1 = { -- EACH ROOM HAS ITS OWN STAGE CODE. IN THIS CASE, YOU START IN "room_1". IF YOU GO BEYOND THE SCREEN SIZE, IT CHANGES TO ROOMS 2-5.
    1,2,2,2,2,2,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, -- 1 = WALL  2 = DOOR.
    2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1, -- THE CODE ALLOWS THE COMPUTER TO PRINT THE MAP(S)
    2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1, -- OF WHATEVER YOU WANT
-- Player position. CHANGE IF YOU WANT THE PLAYER TO START IN ANOTHER POSITION
load_room = room_1 -- THIS IS THE ROOM THAT LOADS FIRST. CHANGE THIS IF YOU WANT TO LOAD IN A DIFFERENT ROOM AT THE START OF THE GAME
LR = true -- Ignore this
running = true
function load(table)
    if LR == true then -- This code prints the code on screen. WARNING: MAP DOES NOT UPDATE TO SAVE PROCESSING TIMES FOR PLAYER MOVEMENT
        load_room = table
        for i=1,#load_room do
            if load_room[i] == 0 then -- CHECKS TO SEE IF ITS 0. IF SO THEN
                write(" ") -- DISPLAY A BLANK SLOT
            elseif load_room[i] == 1 then -- CHECKS TO SEE IF ITS 1. IF SO THEN
                write("#") -- DISPLAY A WALL TILE
            elseif load_room[i] == 2 then -- CHECKS TO SEE IF ITS 2. IF SO THEN
                write(".") -- DISPLAY A DOOR TILE
            elseif load_room[i] == 3 then -- CHECKS TO SEE IF ITS 3. IF SO THEN
                write("*") -- DISPLAY SPRITE EXAMPLE
            end
        end
    end
end
while running do -- main player functions and map transactions
    term.setCursorPos(px,py) -- Ignore
    write(" ") -- Ignore
    term.setCursorPos(1,1) -- Ignore
    load(load_room) -- Ignore
    term.setCursorPos(px,py) -- Ignore
    write("@") -- Ignore
    a,i = os.pullEvent("key") -- Ignore
    if i == 17 or i == 200 then
        --if load_room[py * 51 - 51 + px] ~= 1 then
            py = py - 1 -- MOVES PLAYER UP /\
        --end

        if load_room[py * 51 - 51 + px] == 1 then -- CHECKS TO SEE IF CURRENTLY ON A 1 BLOCK BY USING THE AWSOME POINT TO ARRAY FORMULA I MADE! (playerx * screenx - screenx + playery)
            py = py + 1 -- MOVES THE PLAYER DOWN \/
        end
    elseif i == 31 or i == 208 then
        --if load_room[((py * 51 - 51)) + (px)] ~= 1 then
            py = py + 1
        --end

        if load_room[py * 51 - 51 + px] == 1 then -- CHECKS TO SEE IF CURRENTLY ON A 1 BLOCK BY USING THE AWSOME POINT TO ARRAY FORMULA I MADE! (playerx * screenx - screenx + playery)
            py = py - 1
        end
    elseif i == 30 or i == 203 then
        --if load_room[py * 51 - 51 + px] ~= 1 then
            px = px - 1
        --end

        if load_room[py * 51 - 51 + px] == 1 then -- CHECKS TO SEE IF CURRENTLY ON A 1 BLOCK BY USING THE AWSOME POINT TO ARRAY FORMULA I MADE! (playerx * screenx - screenx + playery)
            px = px + 1
        end
    elseif i == 32 or i == 205 then
        --if load_room[py * 51 - 51 + px] ~= 1 then
            px = px + 1
        --end

        if load_room[py * 51 - 51 + px] == 1 then -- CHECKS TO SEE IF CURRENTLY ON A 1 BLOCK BY USING THE AWSOME POINT TO ARRAY FORMULA I MADE! (playerx * screenx - screenx + playery)
            px = px - 1
        end
    elseif i == 28 or i == 32 or i == 57 or i == 205 or i == 18 then -- CHECKS TO SEE IF PLAYER HIT A SELECTION KEY. I HAVE THIS AS THE EXIT KEYS FOR NOW
        cls()
        running = false
    end

    if px > 50 or px < 2 then

        if px > 50 then
            if load_room == room_1 then
                load(room_3)
            else
                load(room_1)
            end
        else
            if load_room == room_1 then
                load(room_5)
            else
                load(room_1)
            end
        end

        if px > 50 then
            px = px - 49
        else
            px = px + 49
        end
    elseif py > 18 or py < 2 then

        if py > 18 then
            if load_room == room_1 then
                load(room_4)
            else
                load(room_1)
            end
        else
            if load_room == room_1 then
                load(room_2)
            else
                load(room_1)
            end
        end

        if py > 18 then
            py = py - 17
        else
            py = py + 17
        end
    end
end

print("Thanks for using 2d Engine!")