Grindling/wip.lua

-- assume that the engine will create these
local floor = {}
floor.entity = {}
fn = function(code)
  -- TODO sandbox code appropriately
end
floor.get = function(self, x, y)
  -- TODO whatever is returned by this can be compared with a string to see if its character matches
  -- TODO this should return a second value, a table of entities! or empty table
end

-- below here is created by the user
floor.entity[1] = { x = 0, y = 0, character = "@" } -- entity drawing defaults: character="e",color={1,1,1,1},background={0,0,0,1}
floor.global_functions = {}
floor.global_functions.action = function(x, y)
  local player = floor.entity[1]
  local target, entities = floor:get(x, y)
  if target == " " and #entities == 0 then
    player.x = x
    player.y = y
  -- TODO elseif entities / other things
  end
end

-- assumes engine will call it to initialize a floor before it is used
floor.init = function()
  for name, code in pairs(floor.global_functions) do
    _G[name] = fn(code)
  end
  if not floor.generated then
    -- TODO generate this floor!
  end
end

floor.update = function(key)
  local player = floor.entity[1]
  if key == "up" then
    action(player.x, player.y - 1)
  elseif key == "left" then
    action(player.x - 1, player.y)
  elseif key == "down" then
    action(player.x, player.y + 1)
  elseif key == "right" then
    action(player.x + 1, player.y)
  end
end