IO Reading Question

[Beelz]

I'm writing a block breakout game and I'm having trouble loading the templates I've made for it... I'm really just wondering if anyone can tell me what I'm doing wrong here:

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function LoadMap(map)
	local row_num = 0
	local column_num = 0

	for line in io.lines(map) do 
    	row_num = row_num + 1
		for j = 1, line:len() do
			column_num = column_num + 1
			NewBlock(row_num,column_num,string.sub(line, j))
		end
		column_num = 0
	end
end

The variables for the function 'NewBlock' are Row, Column, and Health. Each line of the template file is a row, each character of the lines are the columns, and the value of each character is the health of the block... This is what the templates look like:

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0000000000000000
0000000000000000
0000000000000000
5555555555555555
0112344554432110
0112233333322110
0012222222222100
0001111111111000

If anyone could lend me a hand I would be very grateful. The rest of the game is completely done... I just need to read from the templates and debug the blocks' collisions to finish it.

[slime]

The io library doesn't know about the game's source directory path (or save directory path). You can use [wiki]love.filesystem.lines[/wiki] instead.

[Jasoco]

First it's not recommended to use any io functions. Instead use the Löve Filesystem commands. There's one for lines(). (Slime beat me to this one)

Second, len is depreciated. Just use #line.


A tip, I usually use tables for my map templates. Though they use more text. They're more future proof. But you can use what you need. Your method will still work fine. Though a table would use a different method.

[Beelz]

Ah, thank you guys! That did the trick... Just one more question for now.

How can I get each character for the strings? I keep getting the character count as opposed to the character's value.



EDIT

Never mind I figured it out finally...

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string.sub(line,j,j)