research overflow can eventually wrap into negative values

[vexing]

if you get enough research overflow, it will eventually go beyond the bound for storing the number and wrap into negative. i'd guess this happens at 214,748 and goes to negative 214,748.
i'm going to be sad when my gold wraps into the negatives =(

 

[EndoConvert]

if you get enough research overflow, it will eventually go beyond the bound for storing the number and wrap into negative. i'd guess this happens at 214,748 and goes to negative 214,748.
i'm going to be sad when my gold wraps into the negatives =(

Wow, what kind of games are you playing that you're getting such enormous numbers?

The screenshot is actually pretty funny. "Who knows what the future holds?" Apparently, massively negative research!

 

[vexing]

a HoF large pangea immortal time victory

i verified that it's standard integer overflow as i suspected. when it goes above 2^31 / 1000 it wraps.

 

[Barghaest]

This apparently also happens with values such as research amount (not just your overflow)... I'm running a game right now with a mod that adjusted research values to 5000%... from modern era up the research required is a negative value and any research will complete in 1 turn.

Sad that they overlooked people wanting even slower paced research games (although build times are still full speed - I enjoy having several hundred turns to use a unit type before I need to upgrade, makes for some grueling battles).

 

[sanabas]

Confirmed. Both what happens and the value it happens at. Happened multiple times in this game: http://hof.civfanatics.net/civ5/game_info.php?entryID=1287

 

[Mallow]

Confirmed. I had it too. Has anyone mailed it to 2k? There's a suggestion on 2k forums, where to send it.

 

[Mercade]

if you get enough research overflow, it will eventually go beyond the bound for storing the number and wrap into negative. i'd guess this happens at 214,748 and goes to negative 214,748.
i'm going to be sad when my gold wraps into the negatives =(

This apparently also happens with values such as research amount (not just your overflow)... I'm running a game right now with a mod that adjusted research values to 5000%... from modern era up the research required is a negative value and any research will complete in 1 turn.

Game design doesn't necessarily have to consider 5000% modifiers, but it should not affect regular gameplay on large maps.

I see two solutions:
- go from int32 to int64
- as minimum, identify the overload and keep the value at maxint.

At any rate, this bug is confirmed as of 1.383