Significantly improved game stability, added tree-chopping effects.

Beta Net 12.8.8

1 Added server-side item generation defense code

2 Added server-side item registration defense code

3 Added event defense code

4 Removed code for insect drops

5 Fixed plugin bugs

6 Initial fixes for fall damage at underground points

7 Fixed a bug where underground monsters were empty

8 Adjusted the manual door opening/closing status

9 Removed sulfur and saltpeter

10 Adjusted the bow and arrow recipe

11 Adjusted the honey mechanism for healing

12 Added leaf falling effect for chopping trees

13 Added smoke effect for chopping trees

14 Adjusted the tree-chopping tilt angle to be adaptive