Toggled collision changes states between saves

[zach_holbrook]

Not sure if this is a known issue or not, but I am able to reproduce it consistently: if I use the script gaToggleAreaSquareWalkable to change the default collision settings (either false or true) of squares in an area, loading a saved game reverts to the default collision settings (potentially trapping adventurers!).

[youngneil1]

Good catch, Zach. I wasnt aware of the issue, I put it on the list of things to fix. Without you guys input we would never be able to do the IB project, many thanks again.

[zach_holbrook]

Of course -- thanks for fixing things!

[youngneil1]

I think what I will do is to add a new IBScriptHook that is called for when loading a savegame. This hook in combination with global variables (if gobal var = x, set walkable to true) can be used to set states of properties that are by default read from module and not from savegame (like walkability of a tile).

Walkability of a tile is not bound to savegame data because expanding campaigns might need to open up former non-walkable areas - for existing savegames as well. The most recent version of the module file itself is therefore always used to determine walkability, regardless of the save.

Still, as Zach correctly pointed to, there are also situations where walkability has to be stored in the savegame (eg new passage unlocked by quest progress). And here the mentioned new scipt hook comes into play. Savegames store the values of global variables. So, an author can use these in combination with the new script hook to override the walkability state form the recent module version.

This is hopefully a flexible solution for manually handling the save data vs module data conflict in a fitting way.

Ah, harder to put in words than I thought, I hope it still makes some sense...

[slowdive]

Or the builder could use an invisible prop with collision and delete the prop to make it passable. Or have a trigger that does a check and either let's you stay on the square or does the transition to last square (Pongo used this in the elderin stone for all the torches on walls and pictures on walls).

[zach_holbrook]

Ah, that makes a lot of sense. That will be easy to do. Trying it out!