Added a Capturable Neutral BOSS,Introduced Horse Vehicle and Poké Ball Item

The game is level-based, with each level featuring entirely distinct gameplay genres.

This update adds a Neutral BOSS and an Item System to the Survivor level:

[Neutral BOSS] For the BOSS's AI development, since we’re using Unity ECS, there are no pre-built AI tools (e.g., behavior trees, visual state machines) available. We implemented a simple state machine directly through code. Fortunately, the BOSS’s behavior isn’t overly complex.

[Item System] The item system aims to introduce vehicles like cars and tanks, allowing players to plow through zombie hordes—a concept that sounds exciting. However, lacking prior experience with vehicle mechanics, we prioritized releasing a horse as the first mount.

Additionally, we added a Poké Ball item to the system. It can capture the BOSS and summon it to fight for you (capturing monsters always feels irresistibly fun, no matter the game!).

[Bug Fixes]

• Fixed several crash-inducing issues.
• Note: Working with Unity ECS requires extreme caution—even minor mistakes can crash the game, reminiscent of the old days of C++ game development.

Future Plans: Enable captured BOSSes to be used across other levels, linking gameplay through cross-level item sharing.