Optimization:
Optimize the calculation method after enemy death to reduce system computation.
Upgraded the game engine to the Longterm Serve version to prepare for long-term maintenance in the future and fixed several bugs caused by the upgrade
Optimized the level loading method to ensure the information correctly after each level update
Replaced grenade model
New features:
1. Add the TNT explosion function and some TNT objects to the scene
2. Added the "Last Weapon used" record. Every time you enter the scene, the character will default pull out the last gun.
3. Add a female voice