LÖVE

leiradel wrote:Ok, here's the code that I'm running without errors:

Code: Select all

function class()
  local cls = {}
  cls.__index = cls
  return setmetatable(cls, {__call = function (c, ...)
    instance = setmetatable({}, cls)
    if cls.__init then
      cls.__init(instance, ...)
    end
    return instance
  end})
end

player = class()

function player:__init()
  self.x = 320
  self.y = 240
  self.hspeed = 0
  self.vspeed = 0
  self.hp = 0
end

function player:update()
  self.x = self.x + self.hspeed
  self.y = self.y + self.vspeed
  self.vspeed = 0
  self.hspeed = 0
end

p = player()

function love.update(dt)
  p:update()
end

I've created a test folder in the same folder where love.exe lives, and put the above code in a main.lua file inside test. I'm then able to run it fine by either dragging test over love.exe or via the command line: love test.

function cCake:MoveDown()
	self.y = self.y+1
end

oCake:MoveDown()

bartbes wrote:Because oCake.y doesn't exist?

function cCake:init()
	self.x = 0
	self.y = 0
	self.hspeed = 0
	self.vspeed = 0
end

TheBreadCat wrote:

bartbes wrote:Because oCake.y doesn't exist?

Code: Select all

function cCake:init()
	self.x = 0
	self.y = 0
	self.hspeed = 0
	self.vspeed = 0
end

TheBreadCat wrote: still does not work just gets this:

Code: Select all

attempt to perform arithmetic on field 'x'(a nil value)

Robin wrote:Also, you're creating a global called "instance". This does not seem to have been fixed by anyone. Not the most important of your issues, but still.

init() is not called on your class system, but __init() is, which is why it doesn't work. Change either one in the other, and it should work.

function class:new(...)
    local c = {}
    c.__baseclass = self
    setmetatable(c, getmetatable(self))
    if c.init then <--------
        c:init(...) <---------
    end
    return c
end

TheBreadCat wrote:are you even listening?