[Graham]

Can you change the names of files or delete files through robotic?

Does fwrite_pos start at 0 or 1?

When you set a position does it read that position or the very next position?

How would file access go about reading the config file for MegaZeux? I understand that when writing to a file, robotic places a '*' (or whatever you set as the delimiter) at the end of a string but not a number, is that right? How would it work in the case of the config file though, would the entire contents of the file be written to a single string and then modified there?

[Dr Lancer-X]

No

0

That position

Easiest way to go would probably be to set fread_delimiter to the newline character (10) and read it line by line.

Quote

I understand that when writing to a file, robotic places a '*' (or whatever you set as the delimiter) at the end of a string but not a number, is that right?

There are 4 different fwrite commands. Some of them share names with each other which might confuse you at first, but make no mistake, they are utterly distinct.

set "fwrite" 65

This writes a single byte containing the value 65 (in other words, the character A) to the file.

set "fwrite_counter" 8239

This writes four bytes to the file and those four bytes represent the value 8239. I can't recall if this is machine endianness or not, but you can probably expect little endian - in other words, this will write the bytes 47, 32, 0 and 0 to the file.

set "$string" "fwrite"

This writes the contents of $string followed by the FWRITE_DELIMITER character to the file.

set "$string" "fwrite10"

This writes the first 10 bytes of $string and no delimiter to the file. As a result, this is often more useful than plain fwrite. If you want to write the entire string, but with no delimiter, use:

set "$string" "fwrite&$string.length&"

String fread and fread# work the same way - but, of course, if you want to read a string in from a file without a delimiter you'll need to know in advance how long it is.

[CJA]

I'd stay away from editing the config file. You have to worry about parsing out comments and whitespace and stuff...

You can just throw game-specific settings for thisgame.mzx into a thisgame.cnf and it should overwrite the config defaults.

[Dr Lancer-X]

I've a funny feeling Graham wants to do something weird here, like specifying resolution options / fullscreen / scaler options from a configuration screen in the game itself, probably for the purposes of standalone distribution. In that case a per-game .cnf won't cut it.

[Graham]

Dr Lancer-X, on 02 November 2016 - 07:46 PM, said:

I've a funny feeling Graham wants to do something weird here, like specifying resolution options / fullscreen / scaler options from a configuration screen in the game itself, probably for the purposes of standalone distribution. In that case a per-game .cnf won't cut it.

You got it. As I'm wrapping up the game I want to look into that. But for the time being, I am trying to edit servo.cnf to get a feel for how it will work. I'm trying to add the option to select keyboard, xbox360 controller or custom game pad to the gam and have configurable buttons. Thanks guys.

[Graham]

Btw, the config file is only accessed once by MegaZeux when it starts running right? So any changes to it will not be seen until you exit and reopen it?

[CJA]

Yup. Though - I wonder what happens when you load a world with a world-specific .cnf and then load a world without one.

[Graham]

I think the game.cnf files are accessed when you load that game, though the settings seem to continue even when you load a different game. I've noticed I still have controller support when I play a different game, even though I only set it up for servo

[Dr Lancer-X]

Well, the config files don't wipe old settings, they just override the old settings with new ones. So if you load a game that doesn't contain a joystick profile your existing one won't change.