v0.941 update
1. More smooth while exploring.
2. Add dialog message
3. Add double size building: 1x2, or 2x2
4. Disabled some building light for better night view.
5. Add auto gun (low cost), 4x damage to air unit.
6. Add swamp group terrain.
7. Add advanced jetpad, It can fly over mountains.
8. To modify terrain generation parameters: Temperature/Wet/Height/Hills
9. Auto converting old save file format.
v0.942 update
1. update mining style/sight and environment light.