Adding An Image To A Table

[Rukiryo]

So, I'm fairly new to this, and I'm making a system to store values of objects. I want to insert the image into a table, with the key "object". I made a function that adds it into a table. So, basically, here.

Code: Select all

objectimage = --the loaded image

table = {object = objectimage}

When I go through the table inside my draw function..

function love.draw()
for i, v in pairs(table) do
love.graphics.draw(v.object,300,300)
end
end

--It doesn't work. 

The error I get is:
Incorrect Paramater Type: (expected userdata)

So, I'm not sure why this is happening. I'm new to this language. Help appreciated alot!
Also, this is an example. The real code has got alot in it, as I'm making a platformer engine, but this is the issue. The image wont be called upon by the key I use for it, I get that error.

[ivan]

There's a couple of things wrong with your code.
First, you probably don't want to use the global variable "table" because you'll overwrite your reference to functions like "table.remove" "table.insert" and so on.
Secondly, your code creates just one table and attempts to iterate it.
I would suggest something like:

Code: Select all

objects = {}
objects[1] = {image = objectimage, x = 300, y = 300}
objects[2] = {image = objectimage2, x = 200, y = 200}

function love.draw()
  for i, v in pairs(objects) do
    love.graphics.draw(v.image,v.x,v.y)
  end
end

[Robin]

You also might want to use ipairs instead of pairs, if you want to treat the image table as a list. Especially if you want to impose a certain order in what is drawn over what.

[Rukiryo]

Okay, I'll try this out. And don't worry about my table name, I was just doing that as an example. I think I get your method now, I'll try it.

[Rukiryo]

So, your ways to manage my table was nicer, but it didn't answer my question, of why it won't let me store a loaded image in the table. I want to use the key "object" but it always tells me the error I posted when I try to draw it from the table as table.objects (TABLE ISN'T NAMED TABLE, DON'T WORRY). Any ideas?

[bartbes]

First, don't double post.

Then, as robin said, it's because you're acting like you have a table of tables, where you have not. table = {{object = some_image}} should work.

[Rukiryo]

I explained this terribly..gah..I appologise..I'm new to foruming..
So, I have a table, that I put other tables inside. Each added table has the object and values for it, like x and y. When I say tablename.x, and y, it always works, and I can print the correct number, but when I use .object, that's defined the same was as x and y, it won't work :/

[bartbes]

Well, I'm going off the code you posted, which is sane, is it not?

[Rukiryo]

That made no sense. Please only reply if you're going to help.

[Robin]

If you want help, show your code. What you're saying is happening is impossible. We can't help you unless you show what you're doing, instead of just telling us.