Game Design

General gameplay flow:

1. The player will spawn in one of the basement empty room(as a prison). The room will have a table, a chair and a pipe as weapon. On the table, there will be a letter written by Dr. Wu. The letter includes: 1. current situations. 2. main goal. 3. Find weapons. 4. Need to get the generator working. Includes the information about the secret room.but don’t know where the owner hides it.. Dr. Wu lost the keycard.

2. Then the player will start to search basement that will have some ammo, food and batteries.

3. When out of the basement, left part will be blocked(Need to burn down the boxes). The player then can only go right. In the large room, the player can find 1 lighter and a bottle of oil that use to burn down the obstacle and encounter the first zombie. (Destructible boxes turn black with fire)Right rooms will contain some boosters, foods and ammo. Note in storage, just diaries. https://m.youtube.com/watch?v=EgNV0PWVaS8

4. The player then will start to look for the key to the Office, which should be in the Film hall. After getting the key, you can go the James' office with the key. It has note about the key code of the secret room.

5. Then the player need to search for the key of the Generator room. The generator key will be spawned in a random location, there's a diary log about it in the meeting room on the first floor.

6. After getting the key to the generator room, you need to head down to the basement again and go into the generator room to start the engine. Once the power goes back, more zombies will be spawned across the building.

7. Then, go to the bookshelf on the second floor across Ward, enter the code you get from James' office. In there you should be able to find a film roll.

8. Use the film roll in the Film Hall on the first floor to get the main gate code.

7. Disable lockdown on the PC in the security room on the first floor and enter main gate password. Game completed.

Secret Room:

• Need secret access code.

• Has Weapons like assault rifle.

• Has key to generator

• entrance pad blocked by books.

Generator room:

• Need keys to get in.

• enable power to main gate.

• The key will hide in surgery room on second floor.

The lockdown PC:

• Need generators.

Main Gate:

• Need generators, key--> random generated on 3 bodies.

Player:

• HP: reduced by zombie attack, fire. Restored by HP restoration items. Screen turn red-ish when in low HP

• Stamina: reduced by running. Can recover slowly overtime or by drinking energy drink.

• Has inventory that can hold 16 items.

• Can equip flashlight with single handed weapons like melee weapons and pistol

• Flashlight that its battery can die over time.

• Make sounds while walking, make more sounds while running or shooting.

• Can be slowed down by zombie attacks

Zombie:

• Some are in a sleeping mode when there's no light. After turning on generator, wake them up. Begin patrol and stuff.

• Sensitive to light and sound. Will run to Flashlights / sounds source.

• Zombie behaviors, driven by state machines:

  1. Idle states -- has max duration time, when reached, go to patrol state.

  2. Patrol state -- just wondering around the waypoint network I set up earlier around the map.

  3. Alerted state -- when it see light or "hear" sound go to this state and wondering around the target aka sound source or light source location.

  4. Pursuit state -- when it see player or food go full speed to pursuit.

  5. Feeding state -- when the satisfaction is lower than a threshold and not seeing any high priority target, when it sees food, it start feeding.

  6. Attack state -- attack player. It has up to 6 random attack animations.

• Head shot does more damage

• Upper body can be damaged to cause limbs of the zombie on the upper body, reduced it's attack damage

• Lower body can be damaged to cause the limbs of the lower body, enough damage dealt to the lower body can cause the zombie to lose mobility for good.

Weapons:

• Melee, order from highest attack to lowest: Machete, Fire Axe, Pipe

• Range weapon, order from highest attack to lowest: Shotgun, Assault rifle, Pistol.

Inventory Items:

• Health point (HP) restoration:

1. Fruits: Banana(10% HP), Apples(10% HP)

2. Pills: Medium Health pills(25% HP), Max Health pills(50% HP)

3. Avocado: Easter egg item, reduce player's HP to 1%.

• Stamina restoration:

1. Energy Drink (restore 75% stamina)

• Battery:

1. Restore flashlight battery to full.

• Ammos:

1. Shotgun

2. Assault rifle

3. Pistol

• Various key item: mentioned earlier in the unlock condition section.

• Lighter and oil: when player have both items, they can be used to burn down wooden crates obstacles.