Force-activate grf on title screen [OTTD]

[PaulC]

I'm trying to use an action E to force-activate a grf on OTTD's title screen, but I can't get it to work. I've got the following two lines above my action 8:

Code: Select all

    1 * 6	 07 92 01 \7! 00 01
    2 * 6	 0E 01 "PC" B0 01

I've checked the wiki and can't see what (if anything) I've done wrong, and a quick test in TTDP suggests that the code is good. I've tried changing the first line to an action 9 and moving these lines below the action 8, but no joy. Does OTTD require something else, or is this feature simply not supported?

Any help would be appreciated!

[planetmaker]

I'm trying to use an action E to force-activate a grf on OTTD's title screen, but I can't get it to work.

There's no way to activate NewGRFs in the title screen unless you use a different title game. The current selection of NewGRFs from the NewGRF config has no way to influence that - which has been changed deliberately to be this way (I forgot all the detailed reasons, but iirs it was along the lines of that interfering with NewGRF config for new games and improper results when configuring new games)

[Yexo]

OpenTTD doesn't implement the "force activation of current NewGRF" part of action E, nor will support for that be added.

[PaulC]

There's no way to activate NewGRFs in the title screen unless you use a different title game. The current selection of NewGRFs from the NewGRF config has no way to influence that - which has been changed deliberately to be this way (I forgot all the detailed reasons, but iirs it was along the lines of it interfering with NewGRF config and improper results when configuring new games)

I meant the title screen menus as opposed to the title game, assuming that makes a difference.

OpenTTD doesn't implement the "force activation of current NewGRF" part of action E, nor will support for that be added.

Why not? I found an old bug report on Flyspray which suggests that this was not always the case. Was support for this removed for some reason (what planetmaker refers to)?

[planetmaker]

There's no way to activate NewGRFs in the title screen unless you use a different title game. The current selection of NewGRFs from the NewGRF config has no way to influence that - which has been changed deliberately to be this way (I forgot all the detailed reasons, but iirs it was along the lines of it interfering with NewGRF config and improper results when configuring new games)

I meant the title screen menus as opposed to the title game, assuming that makes a difference.

It doesn't. As that means the NewGRF must be active in the title game.

[PaulC]

Can someone add a note to the GRF specs making it clear that this feature is not supported by OTTD? I'd do it myself but I can't log into the wiki.

[wallyweb]

... nor will support for that be added.

A friendly "why" might help the questioner to be more accepting of the situation.

[Eddi]

really simple: the title game is a savegame, and GRFs cannot be changed in existing savegames.