Beginner confused with table lua.

[eddiemars]

Edit: Scroll down a couple comments if you wish to see my layout-local frame question, my frame question having been answered so speedily.

Hello. While I am sure this is a very simple problem I am having confusions on how to execute this. The table I am wanting is essentially a list of Minimap Children (though I want to remove some items), and I have included code in the lua to put this into my chat frame to make sure it is working. Okay easy:

function AMget(self)
	local kiddies = { Minimap:GetChildren() }
	for _, frame in pairs(kiddies) do
		DEFAULT_CHAT_FRAME:AddMessage( frame:GetName() ); 
	end
end

This works fine. Great, now I know everything that uses Minimap as a parent. I then see however, that a couple things use it as a parent that I do not want in my table. MinimapPing and MinimapBackdrop. So now I want to figure out a way to have my 'kiddies' table say everything it did before, minus those two things I mentioned. So I researched into 'tremove' and I have fiddled with that but I am very confused with two things: how would I assign tremove with a position when all I have is a name (a name which might change position depending on what is loaded in game), and how do I impliment tremove(table, position) into the code?

Any help would be much appreciated, I am finding the online resources to be far too vague for me to piece this together.

[Xus]

function AMget(self)
	local kiddies, i = { Minimap:GetChildren() }, 1;
	DEFAULT_CHAT_FRAME:AddMessage( "before:" );
	for _, frame in ipairs(kiddies) do
		DEFAULT_CHAT_FRAME:AddMessage( frame:GetName() ); 
	end
	
	--remove MinimapPing and MinimapBackdrop
	while i <= #kiddies do
		if kiddies[i]:GetName() == "MinimapPing" or kiddies[i]:GetName() == "MinimapBackdrop" then
			tremove(kiddies,i);
		else
			i=i+1;
		end
	end
	
	-- do other stuff!
	DEFAULT_CHAT_FRAME:AddMessage( "after:" ); 
	for _, frame in ipairs(kiddies) do
		DEFAULT_CHAT_FRAME:AddMessage( frame:GetName() ); 
	end
end

this is not the uber-most-efficient way, but it works fine

[eddiemars]

works perfect, thank you! Also this teaches me a good deal too. I definitely learn best when I see these things in use.

[eddiemars]

Another question, since I don't feel like thread spamming I'll just tack it on here, and if no one sees it that's okay.

Okay so I've been playing around a lot with various frames doing:

frame:RegisterForDrag("LeftButton")
frame:SetClampedToScreen(true)
frame:SetMovable(true)
frame:SetScript("OnDragStart", function(self) if IsAltKeyDown() then self:StartMoving() end end)
frame:SetScript("OnDragStop", function(self) if IsAltKeyDown() then self:StopMovingOrSizing() end end)

I find it works for just about every frame indeed. BUT, when I /reload, it only saves the position of a couple. MinimapMailFrame for example, that gets saved perfectly. TimeManagerClockButton however, it can be moved yes, but goes back to it's original position each time after a /reload. I have also tried calling frame:ClearAllPoints() (also I tried frame:SetUserPlaced(true), this just makes errors) but it seems to make no difference at all. Does anyone know either why this happens to only some frames, or a way to stop this resetting from happening?

[Akryn]

Originally Posted by eddiemars Does anyone know either why this happens to only some frames, or a way to stop this resetting from happening?

http://www.wowwiki.com/API_Frame_SetUserPlaced

(or alternatively, save the position(s) in a PLAYER_LEAVING_WORLD event handler and restore on VARIABLES_LOADED or similar.)

Edit: I missed that you were talking about Bliz frames. A lot of them try to make sure they're in the "correct" place, and you'd have to override that. There are a number of other threads about doing that.

[Sideshow]

something i still did not read anywere:

what's the difference between pairs and ipairs ?
what is this "_" thing ?

would be great to know

also, in my addon, i use a standard for k,v in pairs(mytable) do
but i don't even use the v in the script .... I reckon it takes a "long" time for the cpu to find the v though ...

[eddiemars]

Originally Posted by Akryn (or alternatively, save the position(s) in a PLAYER_LEAVING_WORLD event handler and restore on VARIABLES_LOADED or similar.) Edit: I missed that you were talking about Bliz frames. A lot of them try to make sure they're in the "correct" place, and you'd have to override that. There are a number of other threads about doing that.

Spent a while searching for threads about it but I came up nil. You think if I just set up a saved variables it will override the correcting of blizz's frames?

[Dridzt]

local skipframes = {}
skipframes["MinimapPing"] = true
skipframes["MinimapBackdrop"] = true

local children = {}

function GetChildrenTree(Frame) 
  if Frame:GetChildren() then
    for _,child in pairs({Frame:GetChildren()}) do
      if not skipframes[child:GetName()] then
        tinsert(children,child);
      end
      GetChildrenTree(child);
    end 
  end
end

GetChildrenTree(Minimap)

This is a recursive function so it will call itself until it gets all the Minimap children (not just the first level ones).
It will also not add anything found in skipframes instead of adding them
just to remove them again later.

[eddiemars]

Originally Posted by Dridzt This is a recursive function so it will call itself until it gets all the Minimap children (not just the first level ones). It will also not add anything found in skipframes instead of adding them just to remove them again later.

Oh this is quite nice looking indeed, thank you.