The Y component of the linear velocity of the Rigidbody2D in world-units per second.
The linear velocity is specified as a Vector2 with components in the X and Y directions (there is no Z direction in 2D physics).
This property lets you read or write the Y component of the Rigidbody2D.linearVelocity separately without affecting the X component of the Rigidbody2D.linearVelocity. This can be convenient when dealing with only X or Y directions in isolation.
Additional resources: Rigidbody2D.linearVelocity and Rigidbody2D.linearVelocityX.
using UnityEngine;
// Ensure that the maximum vertical speed moving up isn't larger than the configurable value. public class Example : MonoBehaviour { public float MaximumVerticalSpeed = 2f;
private Rigidbody2D rb;
void Start() { rb = GetComponent<Rigidbody2D>(); }
void FixedUpdate() { // Clamp the vertical speed. if (rb.linearVelocityY > MaximumVerticalSpeed) { rb.linearVelocityY = MaximumVerticalSpeed; } } }