unity raycast hit code example
Example 1: raycast unity
RaycastHit hit;
// Does the ray intersect any objects excluding the player layer
if (Physics.Raycast(transform.position, transform.TransformDirection(Vector3.forward), out hit, Mathf.Infinity, layerMask))
{
Debug.DrawRay(transform.position, transform.TransformDirection(Vector3.forward) * hit.distance, Color.yellow);
Debug.Log("Hit");
}
else
{
Debug.DrawRay(transform.position, transform.TransformDirection(Vector3.forward) * 1000, Color.white);
Debug.Log("No Hit");
}
Example 2: unity raycast
void Update()
{
// Bit shift the index of the layer (8) to get a bit mask
int layerMask = 1 << 8;
// This would cast rays only against colliders in layer 8.
// But instead we want to collide against everything except layer 8. The ~ operator does this, it inverts a bitmask.
layerMask = ~layerMask;
RaycastHit hit;
// Does the ray intersect any objects excluding the player layer
if (Physics.Raycast(transform.position, transform.TransformDirection(Vector3.forward), out hit, Mathf.Infinity, layerMask))
{
Debug.DrawRay(transform.position, transform.TransformDirection(Vector3.forward) * hit.distance, Color.yellow);
Debug.Log("Did Hit");
}
else
{
Debug.DrawRay(transform.position, transform.TransformDirection(Vector3.forward) * 1000, Color.white);
Debug.Log("Did not Hit");
}
}
Example 3: raycast hit gameobject
RaycastHit.transform.gameObject : GameObject
Example 4: Unity Raycast
using UnityEngine;public class ExampleClass : MonoBehaviour
{
// See Order of Execution for Event Functions for information on FixedUpdate() and Update() related to physics queries
void FixedUpdate()
{
Vector3 fwd = transform.TransformDirection(Vector3.forward); if (Physics.Raycast(transform.position, fwd, 10))
print("There is something in front of the object!");
}
}