87 lines
2.9 KiB
C#
87 lines
2.9 KiB
C#
|
using UnityEngine;
|
||
|
|
|
||
|
|
public class Projectile : MonoBehaviour
|
||
|
|
{
|
||
|
|
[Header("Projectile Settings")]
|
||
|
|
[Tooltip("How fast the projectile moves forward")]
|
||
|
|
public float speed = 25f;
|
||
|
|
|
||
|
|
[Tooltip("How long before the projectile destroys itself if it misses")]
|
||
|
|
public float lifetime = 5f;
|
||
|
|
|
||
|
|
[Tooltip("Offset for embedding the arrow into the target so it doesn't just stick on the very edge")]
|
||
|
|
public float embedDepth = 0.2f;
|
||
|
|
|
||
|
|
[Header("Loaded Offsets (Before Firing)")]
|
||
|
|
[Tooltip("Adjust this to fix how the arrow sits in the hand before it is fired")]
|
||
|
|
public Vector3 loadedPositionOffset = Vector3.zero;
|
||
|
|
public Vector3 loadedRotationOffset = Vector3.zero;
|
||
|
|
|
||
|
|
private float _damage;
|
||
|
|
private LayerMask _targetLayers;
|
||
|
|
private bool _hasHit;
|
||
|
|
private Vector3 _lastPosition;
|
||
|
|
|
||
|
|
public void Initialize(float damage, LayerMask targets)
|
||
|
|
{
|
||
|
|
_damage = damage;
|
||
|
|
_targetLayers = targets;
|
||
|
|
|
||
|
|
// Destroy the arrow after a few seconds if it flies into the sky
|
||
|
|
Destroy(gameObject, lifetime);
|
||
|
|
}
|
||
|
|
|
||
|
|
private void Start()
|
||
|
|
{
|
||
|
|
_lastPosition = transform.position;
|
||
|
|
}
|
||
|
|
|
||
|
|
private void Update()
|
||
|
|
{
|
||
|
|
if (_hasHit) return;
|
||
|
|
|
||
|
|
// Move the projectile forward
|
||
|
|
Vector3 direction = transform.forward;
|
||
|
|
float distance = speed * Time.deltaTime;
|
||
|
|
transform.position += direction * distance;
|
||
|
|
|
||
|
|
// Raycast from the previous position to the new position to detect hits
|
||
|
|
// This prevents fast-moving arrows from passing straight through thin walls or enemies
|
||
|
|
if (Physics.Raycast(_lastPosition, direction, out RaycastHit hit, distance, _targetLayers))
|
||
|
|
{
|
||
|
|
HandleHit(hit);
|
||
|
|
}
|
||
|
|
|
||
|
|
_lastPosition = transform.position;
|
||
|
|
}
|
||
|
|
|
||
|
|
private void HandleHit(RaycastHit hit)
|
||
|
|
{
|
||
|
|
_hasHit = true;
|
||
|
|
|
||
|
|
// Move the arrow right exactly to the hit point, then embed it slightly
|
||
|
|
transform.position = hit.point + (transform.forward * embedDepth);
|
||
|
|
|
||
|
|
// Parent the arrow to the object it hit so it sticks and moves with it
|
||
|
|
transform.SetParent(hit.collider.transform, true);
|
||
|
|
|
||
|
|
// If your Arrow Prefab has a Rigidbody on it, it will fall down due to gravity even after being parented!
|
||
|
|
// We must destroy the Rigidbody component so it stays perfectly glued to the target.
|
||
|
|
Rigidbody rb = GetComponent<Rigidbody>();
|
||
|
|
if (rb != null)
|
||
|
|
{
|
||
|
|
Destroy(rb);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Deal damage
|
||
|
|
Debug.Log($"Arrow hit {hit.collider.name} for {_damage} damage!");
|
||
|
|
hit.collider.GetComponent<WorldObject>()?.TakeDamage(_damage);
|
||
|
|
|
||
|
|
// Optional: Disable collider or script so it doesn't keep checking for hits
|
||
|
|
Collider myCollider = GetComponent<Collider>();
|
||
|
|
if (myCollider != null) myCollider.enabled = false;
|
||
|
|
|
||
|
|
this.enabled = false; // Stops the Update loop
|
||
|
|
}
|
||
|
|
}
|