Wind
The wind's angle is stored in an u8 at offset 0x670.
| Value | Direction |
|---|---|
| 0x00 | North |
| 0x40 | East |
| 0x80 | South |
| 0xc0 | West |
The update_sea_battle_wind_direction function at 0x006113c9 changes the direction by adding or subtracting 8 from the current value, and thus changing the wind direction by 11.25°.