| center | Center of the box. |
| halfExtents | Half the size of the box in each dimension. |
| direction | The direction in which to cast the box. |
| orientation | Rotation of the box. |
| maxDistance | The max length of the cast. |
| layerMask | A Layer mask that is used to selectively ignore colliders when casting a capsule. |
| queryTriggerInteraction | Specifies whether this query should hit Triggers. |
bool True, if any intersections were found.
Casts the box along a ray and returns detailed information on what was hit.
| center | Center of the box. |
| halfExtents | Half the size of the box in each dimension. |
| direction | The direction in which to cast the box. |
| hitInfo | If true is returned, hitInfo will contain more information about where the collider was hit. (Additional resources: RaycastHit). |
| orientation | Rotation of the box. |
| maxDistance | The max length of the cast. |
| layerMask | A Layer mask that is used to selectively ignore colliders when casting a capsule. |
| queryTriggerInteraction | Specifies whether this query should hit Triggers. |
bool True, if any intersections were found.
Casts the box along a ray and returns detailed information on what was hit.
//Attach this script to a GameObject. Make sure it has a Collider component by clicking the Add Component button. Then click Physics>Box Collider to attach a Box Collider component. //This script creates a BoxCast in front of the GameObject and outputs a message if another Collider is hit with the Collider’s name. //It also draws where the ray and BoxCast extends to. Just press the Gizmos button to see it in Play Mode. //Make sure to have another GameObject with a Collider component for the BoxCast to collide with.
using UnityEngine;
public class Example : MonoBehaviour { float m_MaxDistance; float m_Speed; bool m_HitDetect;
Collider m_Collider; RaycastHit m_Hit;
void Start() { //Choose the distance the Box can reach to m_MaxDistance = 300.0f; m_Speed = 20.0f; m_Collider = GetComponent<Collider>(); }
void Update() { //Simple movement in x and z axes float xAxis = Input.GetAxis("Horizontal") * m_Speed; float zAxis = Input.GetAxis("Vertical") * m_Speed; transform.Translate(new Vector3(xAxis, 0, zAxis)); }
void FixedUpdate() { //Test to see if there is a hit using a BoxCast //Calculate using the center of the GameObject's Collider(could also just use the GameObject's position), half the GameObject's size, the direction, the GameObject's rotation, and the maximum distance as variables. //Also fetch the hit data m_HitDetect = Physics.BoxCast(m_Collider.bounds.center, transform.localScale*0.5f, transform.forward, out m_Hit, transform.rotation, m_MaxDistance); if (m_HitDetect) { //Output the name of the Collider your Box hit Debug.Log("Hit : " + m_Hit.collider.name); } }
//Draw the BoxCast as a gizmo to show where it currently is testing. Click the Gizmos button to see this void OnDrawGizmos() { Gizmos.color = Color.red;
//Check if there has been a hit yet if (m_HitDetect) { //Draw a Ray forward from GameObject toward the hit Gizmos.DrawRay(transform.position, transform.forward * m_Hit.distance); //Draw a cube that extends to where the hit exists Gizmos.DrawWireCube(transform.position + transform.forward * m_Hit.distance, transform.localScale); } //If there hasn't been a hit yet, draw the ray at the maximum distance else { //Draw a Ray forward from GameObject toward the maximum distance Gizmos.DrawRay(transform.position, transform.forward * m_MaxDistance); //Draw a cube at the maximum distance Gizmos.DrawWireCube(transform.position + transform.forward * m_MaxDistance, transform.localScale); } } }