CPU usage and (rail) network optimization

[Wolf01]

get a faster computer

that is not a solution, i bought this laptop a year and some monts ago and it can run new games very well
a solution is to optimize the code instead!
the map is already auto-generated with small number of towns, those games on large maps starts well, when towns start to grow, the game starts to slow down

[Bjarni]

get a faster computer

that is not a solution, i bought this laptop a year and some monts ago and it can run new games very well
a solution is to optimize the code instead!
the map is already auto-generated with small number of towns, those games on large maps starts well, when towns start to grow, the game starts to slow down

you missed out the in the quote. It was not a serious statement.

I didn't learn what needed to calculate the distance to the town all the time, and that is a must before we can do anything about this. The distance calculation on it's own can't be made any faster, so a speedup can only be to call it less times.

[Brianetta]

Can't the distance to the town be cached in the map array?

[Bjarni]

Can't the distance to the town be cached in the map array?

it needs a pointer to the nearest town, not just a distance and the current map array haven't got room for a whole pointer.
I did wonder about adding more room for such a pointer, but I didn't get past the "starting to wonder" stage.