Patch: Store and restore map locations

[Terkhen]

This patch is just a complete rewrite of PhilSophus Location Registers: Save/restore locations on the map, due to the huge changes in trunk since then. It allows to store up to 4 map locations pushing CTRL + PG_UP, CTRL + PG_DOWN, CTRL + HOME or CTRL + END. To make the screen scroll back to the desired location, just press PG_UP, PG_DOWN, HOME or END.

The key scheme and number of stored locations can be changed very easily, and I'm interested in suggestions to improve them.

[XeryusTC]

What's wrong with using signs for this? You can have way more than 4 signs in a single game

[Terkhen]

Yes, but you can't access them with a single key. Signs are perfect to remember important locations, but you have to open the sign list window an search for the one you want. Storing them with this patch is useful to switch quickly between the locations you are using at the moment.

[Iguanna]

About the keys, normally on windows (same on other OSs?) those keys are used to scroll lists. PgUp and PgDown would scroll 1 page, and Home, End would scroll the the beginning or end. Maybe they are not ideal keys to use, but I can't think of any better ones. They don't seem to scroll the lists anyway, or didn't for the train list when I tried just now, so maybe it would be fine to use them.

Edit: BTW this would be an handy feature IMO, since there are usually a couple of spots I go to a lot.

[Terkhen]

I thought about using the function keys (as PhilSophus did), but since they are already in use, restoring a location would need two keys instead of one (for example CTRL + F1). PhilSophus also used the numpad keys, but since I use a laptop I would still need two keys for restoring and three for storing. The easiest group of keys that would allow to restore a location with a single keystroke were these four (they're only used at the consoles). Anyways, the patch is very simple: I could just implement different key sets and allow to switch between them with a patch option.

[DJ Nekkid]

pg-up/down are used for zoom in/out isnt them?

[Terkhen]

No: the scroll keys aren't used at all in OpenTTD, except at the console.

[Eddi]

i vaguely remember them being used for diagonal movement (map scrolling, mouse pointer with ALT) in TTO, but i might mix that up with other games...