RayCast Unity 3d Tutorial - Become Game Developer & Build Call of Duty Game Clone Full Course 2022

Introduction

In this tutorial, we will guide you through the process of using RayCast in Unity 3D, as demonstrated in the WITS Gaming tutorial. This course is designed to help you build your own game, specifically a Call of Duty clone, by following step-by-step instructions. By the end of this tutorial, you will understand how to effectively implement RayCast for various game mechanics, enhancing your skills as a game developer.

Step 1: Setting Up Your Unity Project

• Open Unity Hub and create a new project.
• Select the 3D template to ensure you have the right environment for your game.
• Name your project (e.g., "Call of Duty Clone") and choose a location to save it.
• Click on "Create" to initialize your new project.

Step 2: Importing Necessary Assets

• Go to the Unity Asset Store or your local asset repository.
• Search for and import any essential assets you need for your game. This may include:
  • 3D models (characters, weapons)
  • Textures
  • Sound effects
• Ensure all assets are correctly imported into your project.

Step 3: Creating the Player Controller

• Create a new C# script named PlayerController.
• Open the script in your preferred code editor.
• Implement the following basic structure:

using UnityEngine;

public class PlayerController : MonoBehaviour
{
    void Update()
    {
        MovePlayer();
    }

    void MovePlayer()
    {
        // Movement code will go here
    }
}

• Attach the script to your player GameObject in the Unity Editor.

Step 4: Implementing RayCast for Shooting Mechanics

• Inside the PlayerController script, add a method to handle shooting using RayCast:

void Shoot()
{
    RaycastHit hit;
    if (Physics.Raycast(transform.position, transform.forward, out hit, 100f))
    {
        Debug.Log("Hit: " + hit.collider.name);
        // Add logic for dealing damage or other effects
    }
}

• Call the Shoot method in the Update function, triggered by a key press (e.g., spacebar):

if (Input.GetKeyDown(KeyCode.Space))
{
    Shoot();
}

Step 5: Testing Your Game

• Save your script and return to the Unity Editor.
• Press the play button to test your game.
• Move your player and press the spacebar to see if the RayCast works correctly. Check the console for hit messages.

Step 6: Enhancing Gameplay with RayCast

• Consider adding features to make the gameplay more engaging, such as:
  • Implementing enemy AI that reacts to player shots.
  • Adding visual effects for when a shot hits an object.
  • Creating a scoring system based on hits.

Conclusion

In this tutorial, you learned how to set up a Unity project, import assets, create a player controller, and implement shooting mechanics using RayCast. These foundational skills are essential for building more complex game mechanics. As you progress, consider expanding your game with additional features and refining your project. Keep practicing, and you'll be well on your way to becoming a skilled game developer.