First-Person Shooter Game in Unity Series

Introduction

• Creating a first-person shooter (FPS) game in Unity.
• Features include:
  • Shooting different guns
  • Picking up weapons and ammo
  • Reloading weapons
  • Aim Down Sights (ADS)
• Generic weapon script for customization in other games (open world, survival, etc.).

Course Structure

• Fast-paced for those already familiar with Unity.
• Beginners can join but will not cover basic concepts in-depth.

Episode Breakdown

• Episode 1: Project Setup and Basic Movement
  • Creating a 3D Universal Render Pipeline (URP) game using Unity 2022.1.23.
  • Organizing project folders (settings, scripts, etc.).

Creating the Player Environment

• Create a plane (ground) for the player to stand on.
• Create an empty object named "player" and add a character controller.
• Add a cylinder as the player's body and adjust the scale.

Player Movement Scripts

1. Mouse Movement Script

   • Set mouse sensitivity, x rotation, and y rotation.
   • Lock cursor in start method.
   • Get mouse input:
     • Mouse X: left/right movement
     • Mouse Y: up/down movement
   • Rotate body based on mouse movement.
   • Implement clamping to limit rotation:
     • Top limit: 90 degrees
     • Bottom limit: -90 degrees
   • Use public float for clamping to allow inspector adjustments.
   • Move main camera to the player's head position.

2. Player Movement Script

   • Define variables: speed, gravity, jump height, ground check, velocity, grounded state, last position.
   • Reference character controller in start method.
   • Use physics check sphere to determine if the player is grounded.
   • Reset velocity when grounded and adjust for jumping.
   • Get input for player movement directions (x and z axes).
   • Move player using character controller's move method.
   • Implement jumping logic with gravity application.
   • Track grounded state to prevent infinite jumps.

Implementing Ground Check

• Create an empty object for ground check and attach to player.
• Set ground mask and create ground layer (apply to the plane).

Testing

• Confirm player can move, jump, and look around.

Next Episode

• Focus on shooting mechanics.
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