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Assets/RealisticCarControllerV3/Scripts/RCC_DetachablePart.cs
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279
Assets/RealisticCarControllerV3/Scripts/RCC_DetachablePart.cs
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//----------------------------------------------
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// Realistic Car Controller
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//
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// Copyright © 2014 - 2023 BoneCracker Games
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// https://www.bonecrackergames.com
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// Buğra Özdoğanlar
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//
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//----------------------------------------------
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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/// <summary>
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/// Detachable part of the vehicle.
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/// </summary>
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[AddComponentMenu("BoneCracker Games/Realistic Car Controller/Misc/RCC Detachable Part")]
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public class RCC_DetachablePart : MonoBehaviour {
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public ConfigurableJoint Joint {
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get {
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if (_joint == null)
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_joint = GetComponentInParent<ConfigurableJoint>();
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return _joint;
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}
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set {
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_joint = value;
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}
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}
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private ConfigurableJoint _joint;
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public Rigidbody Rigid {
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get {
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if (_rigid == null)
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_rigid = GetComponentInParent<Rigidbody>();
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return _rigid;
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}
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set {
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_rigid = value;
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}
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}
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private Rigidbody _rigid;
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private RCC_Joint jointProperties; // Joint properties class.
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public Transform COM; // Center of mass.
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public Collider partCollider; // Collider.
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public enum DetachablePartType { Hood, Trunk, Door, Bumper_F, Bumper_R }
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public DetachablePartType partType = DetachablePartType.Hood;
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public bool lockAtStart = true; // Lock all motions of Configurable Joint at start.
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public float strength = 100f; // Strength of the part.
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internal float orgStrength = 100f; // Original strength of the part. We will be using this original value while restoring the part.
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public bool isBreakable = true; // Can it break at certain damage?
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public bool broken = false; // Is this part broken currently?
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public int loosePoint = 35; // Part will be broken at this point.
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public int detachPoint = 0; // Part will be detached at this point.
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public float deactiveAfterSeconds = 5f; // Part will be deactivated after the detachment.
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public Vector3 addTorqueAfterLoose = Vector3.zero; // Adds angular velocity related to speed after the brake point reached.
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private void Start() {
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orgStrength = strength; // Getting original strength of the part. We will be using this original value while restoring the part.
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// Getting collider.
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if (!partCollider)
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partCollider = GetComponentInChildren<Collider>();
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if (partCollider)
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partCollider.enabled = false;
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// Setting center of mass if selected.
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if (COM)
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Rigid.centerOfMass = transform.InverseTransformPoint(COM.transform.position);
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// Disable the script if configurable joint not found.
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if (!Joint) {
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Debug.LogWarning("Configurable Joint not found for " + gameObject.name + "!");
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enabled = false;
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return;
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}
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// Getting original properties of the joint. We will be using the original data for restoring the part while repairing.
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GetJointProperties();
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// Locks all motions of Configurable Joint at start.
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if (lockAtStart)
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StartCoroutine(LockJoint());
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}
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/// <summary>
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/// Getting original properties of the joint. We will be using the original data for restoring the part while repairing.
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/// </summary>
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private void GetJointProperties() {
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jointProperties = new RCC_Joint();
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jointProperties.GetProperties(Joint);
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}
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/// <summary>
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/// Locks the parts.
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/// </summary>
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private IEnumerator LockJoint() {
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yield return new WaitForFixedUpdate();
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RCC_Joint.LockPart(Joint);
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}
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private void Update() {
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// If part is broken, return.
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if (broken)
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return;
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// If part is weak and loosen, apply angular velocity related to vehicle speed.
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if (addTorqueAfterLoose != Vector3.zero && strength <= loosePoint) {
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float speed = transform.InverseTransformDirection(Rigid.velocity).z; // Local speed.
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Rigid.AddRelativeTorque(new Vector3(addTorqueAfterLoose.x * speed, addTorqueAfterLoose.y * speed, addTorqueAfterLoose.z * speed)); // Applying local torque.
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}
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}
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/// <summary>
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/// On collision with impulse.
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/// </summary>
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/// <param name="impulse"></param>
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public void OnCollision(float impulse) {
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// If part is broken, return.
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if (broken)
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return;
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// Decreasing strength of the part related to collision impulse.
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strength -= impulse * 5f;
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strength = Mathf.Clamp(strength, 0f, Mathf.Infinity);
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// Check joint of the part based on strength.
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CheckJoint();
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}
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/// <summary>
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/// Checks joint of the part based on strength.
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/// </summary>
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private void CheckJoint() {
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// If part is broken, return.
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if (broken)
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return;
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// If strength is 0, unlock the parts and set their joint limits to none. Detach them from the vehicle. If strength is below detach point, only set joint limits to none.
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if (isBreakable && strength <= detachPoint) {
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if (Joint) {
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if (partCollider)
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partCollider.enabled = true;
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broken = true;
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Destroy(Joint);
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transform.SetParent(null);
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StartCoroutine(DisablePart(deactiveAfterSeconds));
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}
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} else if (strength <= loosePoint) {
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if (partCollider)
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partCollider.enabled = false;
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if (Joint) {
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Joint.angularXMotion = jointProperties.jointMotionAngularX;
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Joint.angularYMotion = jointProperties.jointMotionAngularY;
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Joint.angularZMotion = jointProperties.jointMotionAngularZ;
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Joint.xMotion = jointProperties.jointMotionX;
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Joint.yMotion = jointProperties.jointMotionY;
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Joint.zMotion = jointProperties.jointMotionZ;
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}
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}
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}
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/// <summary>
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/// Repairs, and restores the part.
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/// </summary>
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public void OnRepair() {
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// Enabling gameobject first if it's disabled.
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if (!gameObject.activeSelf)
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gameObject.SetActive(true);
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if (partCollider)
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partCollider.enabled = false;
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// If joint is removed and part is detached, adding new configurable joint component. Configurable Joints cannot be toggled on or off. Therefore, we need to destroy and create configurable joints.
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if (Joint == null) {
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// Setting properties of the configurable joint to original properties.
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Joint = gameObject.AddComponent<ConfigurableJoint>();
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jointProperties.SetProperties(Joint);
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} else {
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// Setting strength to original strength value. And make sure part is not broken anymore.
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strength = orgStrength;
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broken = false;
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// Locking the part.
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Joint.angularXMotion = ConfigurableJointMotion.Locked;
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Joint.angularYMotion = ConfigurableJointMotion.Locked;
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Joint.angularZMotion = ConfigurableJointMotion.Locked;
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Joint.xMotion = ConfigurableJointMotion.Locked;
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Joint.yMotion = ConfigurableJointMotion.Locked;
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Joint.zMotion = ConfigurableJointMotion.Locked;
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}
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}
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/// <summary>
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/// Disables the part with delay.
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/// </summary>
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/// <param name="delay"></param>
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/// <returns></returns>
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private IEnumerator DisablePart(float delay) {
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yield return new WaitForSeconds(delay);
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gameObject.SetActive(false);
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}
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private void Reset() {
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if(!string.IsNullOrEmpty(RCC_Settings.Instance.DetachablePartLayer))
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gameObject.layer = LayerMask.NameToLayer(RCC_Settings.Instance.DetachablePartLayer);
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if (!COM) {
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COM = new GameObject("COM").transform;
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COM.SetParent(transform);
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COM.localPosition = Vector3.zero;
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COM.localRotation = Quaternion.identity;
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}
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if (!Joint)
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Joint = gameObject.AddComponent<ConfigurableJoint>();
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Joint.connectedBody = GetComponentInParent<RCC_CarControllerV3>().gameObject.GetComponent<Rigidbody>();
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if (!Rigid)
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Rigid = gameObject.AddComponent<Rigidbody>();
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Rigid.mass = 35f;
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Rigid.interpolation = RigidbodyInterpolation.Interpolate;
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Rigid.collisionDetectionMode = CollisionDetectionMode.Continuous;
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if (!partCollider)
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partCollider = GetComponentInChildren<Collider>();
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}
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}
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