Zombie Game

Overview

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Unity application where 4 survivors must defend against waves of zombie enemies, which progressively becomes more difficult. Survivors are not controlled by the player; instead they are controlled by an Artificial Intelligence (AI), where I designed each survivor’s behavior using behavior trees and pathfinding with the goal of trying to survive the longest.

Functional Features:

• Survivors utilize pathfinding to determine an optimal path from current position to destination: 

  • • • Strategically placed Points of Visibility (POV) throughout the map

      • POVs are used by survivors to create custom paths to reach desired destination

      • Survivors take into account path of least resistance (number and type of enemies) when creating a custom path

      • Utilizes A* search to determine which target POV to move to

• Survivors have several behaviors that they follow through a behavior tree:

  • • • Enemy Avoidance - using POVs to help navigate around the map

      • Weapon Handling - conditions when a survivor should use a certain weapon

      • Item Seeking - appropriate opportunity to pick up an item based on survivor stats

      • Attack - which enemy to target based on priority of enemy types and distance to survivor

      • Flee - direction to flee based on distance from enemy to survivor

      • Movement - calculate where to move based on pathfinding results

Behavior Trees