3.6 Introducing Gravity with Rigidbody

To make movement more realistic, let’s add physics.

Step 1: Add a Rigidbody Component

1. Select the cube in the Hierarchy.
2. In the Inspector, click Add Component and choose Rigidbody.

Step 2: Update the Script
Modify the script to use physics-based movement:

void FixedUpdate() {
    float moveHorizontal = Input.GetAxis("Horizontal");
    float moveVertical = Input.GetAxis("Vertical");

    Vector3 movement = new Vector3(moveHorizontal, 0, moveVertical);
    GetComponent<Rigidbody>().AddForce(movement * 10);
}

Explanation:

• FixedUpdate(): Used for physics-related calculations.
• AddForce: Applies force to the Rigidbody, moving the object.

Step 3: Test It

1. Save the script.
2. Press Play and observe the cube’s physics-based movement.