CaosRPG -[CODE]-

local ScreenWidth, ScreenHeight = term.getSize()
local char = ">"
local playerX = math.floor(ScreenWidth / 2)
local playerY = math.floor(ScreenHeight / 2)
local offsetX, offsetY = 0, 0
local map = {}

function drawCharacter()
  term.setCursorPos(playerX - offsetX, playerY - offsetY)
  write(char)
end

function newObject(x, y, obj)
  map[y] = map[y] or {}; map[y][x] = {obj}
end

function newSolidObject(x, y, obj)
  map[x] = map[y] or {}; map[y][x] = {obj, true}
end

function checkForCollision(x, y)
  return map[y] and map[y][x] and map[y][x][2]
end

function drawMap()
  term.clear()
  for y = 1, ScreenHeight do
    if map[y + offsetY] then
      for x = 1, ScreenWidth do
        if map[y + offsetY][x + offsetX] then
          term.setCursorPos(x, y)
          term.write(map[y + offsetY][x + offsetX][1])
        end
      end
    end
  end
  drawCharacter()
end

newSolidObject(4, 5, "x")
newSolidObject(6, 6, "x")
newSolidObject(5, 5, "x")


newObject(7, 7, "w")
newObject(8, 8, "w")
newObject(8, 7, "w")


while true do
  drawMap()
  local e, key = os.pullEvent("key")
  if (key == 17 or key == 200) then
    if not checkForCollision(playerX, playerY - 1) then
      offsetY = offsetY - 1; playerY = playerY - 1
    end; char = "^"
  elseif (key == 31 or key == 208) then
    if not checkForCollision(playerX, playerY + 1) then
      offsetY = offsetY + 1; playerY = playerY + 1
    end; char = "v"
  elseif (key == 203 or key == 30) then
    if not checkForCollision(playerX - 1, playerY) then
      offsetX = offsetX - 1; playerX = playerX - 1
    end; char = "<"
  elseif (key == 205 or key == 32) then
    if not checkForCollision(playerX + 1, playerY) then
      offsetX = offsetX + 1; playerX = playerX + 1
    end; char = ">"
  elseif key == 15 then
    break
  end
end