Newly added game difficulty selection and zombie types

Added:

• Added the function of game difficulty selection, the difficulty is divided into: casual-normal-skilled-nightmare-random

• New types of zombies have been added. Currently, the types of zombies are divided into: ordinary zombies, fat zombies, and roaring zombies

• Added the function of entering cheat codes

• Added fully automatic and semi-automatic UI prompts in the game

• Added the sound effect of the map reverberation in the back room

Tweaks and fixes:

• Adjusted the upper limit of the player's automatic blood recovery to 30%

• Adjusted the operation sequence of starting the game on the main interface, changing it to first select the map, then select the character, and finally select the weapon

• Adjusted that the dead body of the zombie can be pushed by the player

• Fixed the issue where the player would enter the invincible state when being attacked by zombies QTE in the old alley and attacked by Qing Dynasty zombies

• Fixed the problem that the two hats of male characters in custom clothing would overlap

• Fixed the problem that if the zombie is facing away from the player during melee combat, the attack direction will be incorrect

Thank you for your continued support. Let i know in the comments section if you have any suggestions or bugs