119 lines
4.9 KiB
C#
119 lines
4.9 KiB
C#
/// ---------------------------------------------
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/// Ultimate Character Controller
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/// Copyright (c) Opsive. All Rights Reserved.
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/// https://www.opsive.com
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/// ---------------------------------------------
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namespace Opsive.UltimateCharacterController.Objects.ItemAssist
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{
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using Opsive.Shared.Game;
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using Opsive.UltimateCharacterController.Items.Actions;
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using UnityEngine;
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/// <summary>
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/// The MagicParticle will perform a MagicItem impact when it collides with an object. In order for this to work correctly the ParticleSystem must
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/// have collisions enabled and the "Send Collision Event" parameter enabled. See this page for more information:
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/// https://docs.unity3d.com/Manual/PartSysCollisionModule.html.
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/// </summary>
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public class MagicParticle : MonoBehaviour
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{
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[Tooltip("Can the particle collide with the originator?")]
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[SerializeField] protected bool m_CanCollideWithOriginator = false;
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private GameObject m_GameObject;
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private Transform m_Transform;
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private MagicItem m_MagicItem;
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private uint m_CastID;
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/// <summary>
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/// Initialize the default values.
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/// </summary>
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private void Awake()
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{
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m_GameObject = gameObject;
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m_Transform = transform;
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var particleSystem = GetComponent<ParticleSystem>();
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if (particleSystem == null) {
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Debug.LogError($"Error: The MagicProjectile {m_GameObject.name} does not have a ParticleSystem attached.");
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return;
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}
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if (!particleSystem.collision.enabled) {
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Debug.LogError($"Error: The collision module on the MagicProjectile {m_GameObject.name} is disabled. This should be enabled in order to receive collision events.");
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return;
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}
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if (!particleSystem.collision.sendCollisionMessages) {
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Debug.LogError($"Error: Send Collision Messages on the the MagicProjectile {m_GameObject.name} is disabled. This should be enabled in order to receive collision events.");
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return;
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}
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}
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/// <summary>
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/// Initializes the particle to the specified MagicItem.
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/// </summary>
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/// <param name="magicItem">The MagicItem that casted the particle.</param>
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/// <param name="castID">The ID of the MagicItem cast.</param>
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public void Initialize(MagicItem magicItem, uint castID)
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{
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m_MagicItem = magicItem;
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m_CastID = castID;
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}
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/// <summary>
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/// A particle has collided with another object.
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/// </summary>
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/// <param name="other">The object that the particle collided with.</param>
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public void OnParticleCollision(GameObject other)
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{
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// If the transform is null the particle hasn't been initialized yet.
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if (m_Transform == null) {
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return;
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}
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// Prevent the particle from colliding with the originator.
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if (!m_CanCollideWithOriginator) {
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var characterLocomotion = other.GetCachedComponent<Character.UltimateCharacterLocomotion>();
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if (characterLocomotion != null && m_MagicItem.Character == characterLocomotion.gameObject) {
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return;
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}
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}
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// PerformImpact requires a RaycastHit.
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var colliders = other.GetCachedComponents<Collider>();
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if (colliders == null) {
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return;
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}
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for (int i = 0; i < colliders.Length; ++i) {
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if (colliders[i].isTrigger) {
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continue;
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}
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Vector3 closestPoint;
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if (colliders[i] is BoxCollider || colliders[i] is SphereCollider || colliders[i] is CapsuleCollider || (colliders[i] is MeshCollider && (colliders[i] as MeshCollider).convex)) {
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closestPoint = colliders[i].ClosestPoint(m_Transform.position);
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} else {
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closestPoint = m_Transform.position;
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}
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var direction = other.transform.position - closestPoint;
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if (Physics.Raycast(closestPoint - direction.normalized * 0.1f, direction.normalized, out var hit, direction.magnitude + 0.1f, 1 << other.layer)) {
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m_MagicItem.PerformImpact(m_CastID, m_GameObject, other, hit);
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break;
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}
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}
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}
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/// <summary>
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/// The particle has been disabled.
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/// </summary>
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private void OnDisable()
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{
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// All of the impact actions should be reset for the particle spawn id.
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if (m_MagicItem != null && m_MagicItem.ImpactActions != null) {
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for (int i = 0; i < m_MagicItem.ImpactActions.Length; ++i) {
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m_MagicItem.ImpactActions[i].Reset(m_CastID);
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}
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}
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}
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}
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} |