SanAndreasUnity/Assets/Scripts/Behaviours/Vehicles/Damage/VehicleDamage.cs

using SanAndreasUnity.Utilities;
using System.Collections.Generic;
using System.Linq;
using UnityEngine;

namespace SanAndreasUnity.Behaviours.Vehicles
{
    [RequireComponent(typeof(Vehicle))]
    [DisallowMultipleComponent]
    [AddComponentMenu("RVP/Damage/Vehicle Damage", 0)]

    //Class for damaging vehicles
    public class VehicleDamage : MonoBehaviour
    {
        private Transform tr;
        private Rigidbody rb;
        private Vehicle vp;

        [Range(0, 1)]
        public float strength;

        public float damageFactor = 1;

        public float maxCollisionMagnitude = 100;

        [Tooltip("Maximum collision points to use when deforming, has large effect on performance")]
        public int maxCollisionPoints = 2;

        [Tooltip("Collisions underneath this local y-position will be ignored")]
        public float collisionIgnoreHeight;

        [Tooltip("If true, grounded wheels will not be damaged, but can still be displaced")]
        public bool ignoreGroundedWheels;

        [Tooltip("Minimum time in seconds between collisions")]
        public float collisionTimeGap = 0.1f;

        private float hitTime;

        [Tooltip("Whether the edges of adjacent deforming parts should match")]
        public bool seamlessDeform;

        [Tooltip("Add some perlin noise to deformation")]
        public bool usePerlinNoise = true;

        [Tooltip("Recalculate normals of deformed meshes")]
        public bool calculateNormals = true;

        [Tooltip("Parts that are damaged")]
        public Transform[] damageParts;

        [Tooltip("Meshes that are deformed")]
        public MeshFilter[] deformMeshes;

        private bool[] damagedMeshes;
        private DamageLogger[] damageLogger;
        private Mesh[] tempMeshes;
        private meshVerts[] meshVertices;

        [Tooltip("Mesh colliders that are deformed (Poor performance, must be convex)")]
        public MeshCollider[] deformColliders;

        // WIP: Collider

        private bool[] damagedCols;
        private Mesh[] tempCols;
        private meshVerts[] colVertices;

        [Tooltip("Parts that are displaced")]
        public Transform[] displaceParts;

        private Vector3[] initialPartPositions;

        private ContactPoint nullContact = new ContactPoint();

        private const float lightContactDistance = 5;

        //Only for debug
        public Vector3 lastContact = Vector3.zero;

        private void Awake()
        {
            TextGizmo.Init();
        }

        private void Start()
        {
            tr = transform;
            rb = GetComponent<Rigidbody>();
            vp = GetComponent<Vehicle>();

            //Tell VehicleParent not to play crashing sounds because this script takes care of it
#if RVP
            vp.playCrashSounds = false;
            vp.playCrashSparks = false;
#endif

            if (deformMeshes != null && deformMeshes.Length > 0)
            {
                //Set up mesh data
                tempMeshes = new Mesh[deformMeshes.Length];
                damagedMeshes = new bool[deformMeshes.Length];
                damageLogger = new DamageLogger[deformMeshes.Length];
                meshVertices = new meshVerts[deformMeshes.Length];
                for (int i = 0; i < deformMeshes.Length; i++)
                {
                    tempMeshes[i] = deformMeshes[i].mesh;
                    meshVertices[i] = new meshVerts();
                    meshVertices[i].verts = deformMeshes[i].mesh.vertices;
                    meshVertices[i].initialVerts = deformMeshes[i].mesh.vertices;
                    damagedMeshes[i] = false;
                }
            }

            if (deformColliders != null && deformColliders.Length > 0)
            {
                //Set up mesh collider data
                tempCols = new Mesh[deformColliders.Length];
                damagedCols = new bool[deformColliders.Length];
                colVertices = new meshVerts[deformColliders.Length];
                for (int i = 0; i < deformColliders.Length; i++)
                {
                    tempCols[i] = (Mesh)Instantiate(deformColliders[i].GetSharedMesh());
                    colVertices[i] = new meshVerts();
                    colVertices[i].verts = deformColliders[i].GetSharedMesh().vertices;
                    colVertices[i].initialVerts = deformColliders[i].GetSharedMesh().vertices;
                    damagedCols[i] = false;
                }
            }

            if (displaceParts != null && displaceParts.Length > 0)
            {
                //Set initial positions for displaced parts
                initialPartPositions = new Vector3[displaceParts.Length];
                for (int i = 0; i < displaceParts.Length; i++)
                {
                    initialPartPositions[i] = displaceParts[i].localPosition;
                }
            }
        }

        private void FixedUpdate()
        {
            //Decrease timer for collisionTimeGap
            hitTime = Mathf.Max(0, hitTime - Time.fixedDeltaTime);
            //Make sure damageFactor is not negative
            damageFactor = Mathf.Max(0, damageFactor);
        }

        //Apply damage on collision
        private void OnCollisionEnter(Collision col)
        {
            if (hitTime == 0 && col.relativeVelocity.sqrMagnitude * damageFactor > 1 && strength < 1)
            {
                Vector3 normalizedVel = col.relativeVelocity.normalized;
                int colsChecked = 0;
                bool soundPlayed = false;
                bool sparkPlayed = false;
                hitTime = collisionTimeGap;

                foreach (ContactPoint curCol in col.contacts)
                { // WIP: Look deeper into GlobalControl
                    if (tr.InverseTransformPoint(curCol.point).y > collisionIgnoreHeight) //&& GlobalControl.damageMaskStatic == (GlobalControl.damageMaskStatic | (1 << curCol.otherCollider.gameObject.layer)))
                    {
                        colsChecked++;

#if RVP
                        //Play crash sound
                        if (vp.crashSnd && vp.crashClips.Length > 0 && !soundPlayed)
                        {
                            vp.crashSnd.PlayOneShot(vp.crashClips[Random.Range(0, vp.crashClips.Length)], Mathf.Clamp01(col.relativeVelocity.magnitude * 0.1f));
                            soundPlayed = true;
                        }

                        //Play crash sparks
                        if (vp.sparks && !sparkPlayed)
                        {
                            vp.sparks.transform.position = curCol.point;
                            vp.sparks.transform.rotation = Quaternion.LookRotation(normalizedVel, curCol.normal);
                            vp.sparks.Play();
                            sparkPlayed = true;
                        }
#endif

                        DamageApplication(curCol.point, col.relativeVelocity, maxCollisionMagnitude, curCol.normal, curCol, true);
                    }

                    //Stop checking collision points when limit reached
                    if (colsChecked >= maxCollisionPoints)
                    {
                        break;
                    }
                }

                FinalizeDamage();
            }
        }

        //Damage application from collision contact point
        public void ApplyDamage(ContactPoint colPoint, Vector3 colVel)
        {
            DamageApplication(colPoint.point, colVel, Mathf.Infinity, colPoint.normal, colPoint, true);
            FinalizeDamage();
        }

        //Same as above, but with extra float for clamping collision force
        public void ApplyDamage(ContactPoint colPoint, Vector3 colVel, float damageForceLimit)
        {
            DamageApplication(colPoint.point, colVel, damageForceLimit, colPoint.normal, colPoint, true);
            FinalizeDamage();
        }

        //Damage application from source other than collisions, e.g., an explosion
        public void ApplyDamage(Vector3 damagePoint, Vector3 damageForce)
        {
            DamageApplication(damagePoint, damageForce, Mathf.Infinity, damageForce.normalized, nullContact, false);
            FinalizeDamage();
        }

        //Same as above, but with extra float for clamping damage force
        public void ApplyDamage(Vector3 damagePoint, Vector3 damageForce, float damageForceLimit)
        {
            DamageApplication(damagePoint, damageForce, damageForceLimit, damageForce.normalized, nullContact, false);
            FinalizeDamage();
        }

        //Damage application from array of points
        public void ApplyDamage(Vector3[] damagePoints, Vector3 damageForce)
        {
            foreach (Vector3 curDamagePoint in damagePoints)
            {
                DamageApplication(curDamagePoint, damageForce, Mathf.Infinity, damageForce.normalized, nullContact, false);
            }

            FinalizeDamage();
        }

        //Damage application from array of points, but with extra float for clamping damage force
        public void ApplyDamage(Vector3[] damagePoints, Vector3 damageForce, float damageForceLimit)
        {
            foreach (Vector3 curDamagePoint in damagePoints)
            {
                DamageApplication(curDamagePoint, damageForce, damageForceLimit, damageForce.normalized, nullContact, false);
            }

            FinalizeDamage();
        }

        //Where the damage is actually applied
        private void DamageApplication(Vector3 damagePoint, Vector3 damageForce, float damageForceLimit, Vector3 surfaceNormal, ContactPoint colPoint, bool useContactPoint)
        {
            float colMag = Mathf.Min(damageForce.magnitude, maxCollisionMagnitude) * (1 - strength) * damageFactor; //Magnitude of collision
            float clampedColMag = Mathf.Pow(Mathf.Sqrt(colMag) * 0.5f, 1.5f); //Clamped magnitude of collision
            Vector3 clampedVel = Vector3.ClampMagnitude(damageForce, damageForceLimit); //Clamped velocity of collision
            Vector3 normalizedVel = damageForce.normalized;
            float surfaceDot; //Dot production of collision velocity and surface normal
            float massFactor = 1; //Multiplier for damage based on mass of other rigidbody
            Transform curDamagePart;
            float damagePartFactor;
            MeshFilter curDamageMesh;
            Transform curDisplacePart;
            Transform seamKeeper = null; //Transform for maintaining seams on shattered parts
            Vector3 seamLocalPoint;
            Vector3 vertProjection;
            Vector3 translation;
            Vector3 clampedTranslation;
            Vector3 localPos;
            float vertDist;
            float distClamp;
            DetachablePart detachedPart;
#if RVP
            Suspension damagedSus;
#endif

            //Get mass factor for multiplying damage
            if (useContactPoint)
            {
                damagePoint = colPoint.point;
                surfaceNormal = colPoint.normal;

                if (colPoint.otherCollider.attachedRigidbody)
                {
                    massFactor = Mathf.Clamp01(colPoint.otherCollider.attachedRigidbody.mass / rb.mass);
                }
            }

            surfaceDot = Mathf.Clamp01(Vector3.Dot(surfaceNormal, normalizedVel)) * (Vector3.Dot((tr.position - damagePoint).normalized, normalizedVel) + 1) * 0.5f;

#if RVP
            //Damage damageable parts
            for (int i = 0; i < damageParts.Length; i++)
            {
                curDamagePart = damageParts[i];
                damagePartFactor = colMag * surfaceDot * massFactor * Mathf.Min(clampedColMag * 0.01f, (clampedColMag * 0.001f) / Mathf.Pow(Vector3.Distance(curDamagePart.position, damagePoint), clampedColMag));

                //Damage motors
                Motor damagedMotor = curDamagePart.GetComponent<Motor>();
                if (damagedMotor)
                {
                    damagedMotor.health -= damagePartFactor * (1 - damagedMotor.strength);
                }

                //Damage transmissions
                Transmission damagedTransmission = curDamagePart.GetComponent<Transmission>();
                if (damagedTransmission)
                {
                    damagedTransmission.health -= damagePartFactor * (1 - damagedTransmission.strength);
                }
            }
#endif

            if (deformMeshes != null && deformMeshes.Length > 0)
                //Deform meshes
                for (int i = 0; i < deformMeshes.Length; i++)
                {
                    curDamageMesh = deformMeshes[i];
                    localPos = curDamageMesh.transform.InverseTransformPoint(damagePoint);
                    translation = curDamageMesh.transform.InverseTransformDirection(clampedVel);
                    clampedTranslation = Vector3.ClampMagnitude(translation, clampedColMag);

                    //Shatter parts that can shatter
                    ShatterPart shattered = curDamageMesh.GetComponent<ShatterPart>();
                    if (shattered != null)
                    {
                        seamKeeper = shattered.seamKeeper;
                        if (Vector3.Distance(curDamageMesh.transform.position, damagePoint) < colMag * surfaceDot * 0.1f * massFactor && colMag * surfaceDot * massFactor > shattered.breakForce)
                        {
                            shattered.Shatter();
                        }
                    }

                    //Actual deformation
                    if (translation.sqrMagnitude > 0 && strength < 1)
                    {
                        for (int j = 0; j < meshVertices[i].verts.Length; j++)
                        {
                            vertDist = Vector3.Distance(meshVertices[i].verts[j], localPos);
                            distClamp = (clampedColMag * 0.001f) / Mathf.Pow(vertDist, clampedColMag);

                            if (distClamp > 0.001f)
                            {
                                damagedMeshes[i] = true;
                                if (seamKeeper == null || seamlessDeform)
                                {
                                    vertProjection = seamlessDeform ? Vector3.zero : Vector3.Project(normalizedVel, meshVertices[i].verts[j]);
                                    meshVertices[i].verts[j] += (clampedTranslation - vertProjection * (usePerlinNoise ? 1 + Mathf.PerlinNoise(meshVertices[i].verts[j].x * 100, meshVertices[i].verts[j].y * 100) : 1)) * surfaceDot * Mathf.Min(clampedColMag * 0.01f, distClamp) * massFactor;
                                }
                                else
                                {
                                    seamLocalPoint = seamKeeper.InverseTransformPoint(curDamageMesh.transform.TransformPoint(meshVertices[i].verts[j]));
                                    meshVertices[i].verts[j] += (clampedTranslation - Vector3.Project(normalizedVel, seamLocalPoint) * (usePerlinNoise ? 1 + Mathf.PerlinNoise(seamLocalPoint.x * 100, seamLocalPoint.y * 100) : 1)) * surfaceDot * Mathf.Min(clampedColMag * 0.01f, distClamp) * massFactor;
                                }

                                if (damageLogger[i] == null)
                                    damageLogger[i] = new DamageLogger(meshVertices[i].verts);
                                else
                                    damageLogger[i].UpdateVertice(j, meshVertices[i].verts[j]);

                                // Implemented: Broke light on impact

                                if (lastContact != damagePoint)
                                {
                                    //Debug.Log("Impact from left side: " + (damagePoint - vp.m_frontLeftLight.transform.position).sqrMagnitude);
                                    lastContact = damagePoint;
                                }

                                if (vp != null)
                                {
                                    if (vp.m_frontLeftLight != null && vp.m_frontLeftLightOk && (damagePoint - vp.m_frontLeftLight.transform.position).sqrMagnitude < lightContactDistance)
                                        vp.m_frontLeftLightOk = false;

                                    if (vp.m_frontRightLight != null && vp.m_frontRightLightOk && (damagePoint - vp.m_frontRightLight.transform.position).sqrMagnitude < lightContactDistance)
                                        vp.m_frontRightLightOk = false;

                                    if (vp.m_rearLeftLight != null && vp.m_rearLeftLightOk && (damagePoint - vp.m_rearLeftLight.transform.position).sqrMagnitude < lightContactDistance)
                                        vp.m_rearLeftLightOk = false;

                                    if (vp.m_rearRightLight != null && vp.m_rearRightLightOk && (damagePoint - vp.m_rearRightLight.transform.position).sqrMagnitude < lightContactDistance)
                                        vp.m_rearRightLightOk = false;
                                }
                            }
                        }

                        //Affect handling
                        float avg = damageLogger[i] != null ? damageLogger[i].DamageAverage() : 0;

                        // WIP: Name could be the same
                        // WIP: I will not use "me" more
                        //if (Mathf.Abs(avg) > 0 && curDamageMesh.name.Contains("wheel"))
                        //    Debug.LogFormat("Damage Avg: {0} (Name: {1} from {2})", avg, curDamageMesh.transform.parent.name, vp.name));

                        if (false)
                            if (Mathf.Abs(avg) > .01f && curDamageMesh.transform.parent != null && curDamageMesh.transform.parent.name.Contains("wheel") && curDamageMesh.GetComponent<MeshCollider>() == null)
                            {
                                curDamageMesh.transform.parent.GetComponent<WheelCollider>().enabled = false;
                                var col = curDamageMesh.gameObject.AddComponent<MeshCollider>();
                                col.convex = true;

                                // WIP: Explode wheel
                            }
                    }
                }

            seamKeeper = null;

            if (deformColliders != null && deformColliders.Length > 0)
                //Deform mesh colliders
                for (int i = 0; i < deformColliders.Length; i++)
                {
                    localPos = deformColliders[i].transform.InverseTransformPoint(damagePoint);
                    translation = deformColliders[i].transform.InverseTransformDirection(clampedVel);
                    clampedTranslation = Vector3.ClampMagnitude(translation, clampedColMag);

                    if (translation.sqrMagnitude > 0 && strength < 1)
                    {
                        for (int j = 0; j < colVertices[i].verts.Length; j++)
                        {
                            vertDist = Vector3.Distance(colVertices[i].verts[j], localPos);
                            distClamp = (clampedColMag * 0.001f) / Mathf.Pow(vertDist, clampedColMag);

                            if (distClamp > 0.001f)
                            {
                                damagedCols[i] = true;
                                colVertices[i].verts[j] += clampedTranslation * surfaceDot * Mathf.Min(clampedColMag * 0.01f, distClamp) * massFactor;
                            }
                        }
                    }
                }

            if (displaceParts != null && displaceParts.Length > 0)
                //Displace parts
                for (int i = 0; i < displaceParts.Length; i++)
                {
                    curDisplacePart = displaceParts[i];
                    translation = clampedVel;
                    clampedTranslation = Vector3.ClampMagnitude(translation, clampedColMag);

                    if (translation.sqrMagnitude > 0 && strength < 1)
                    {
                        vertDist = Vector3.Distance(curDisplacePart.position, damagePoint);
                        distClamp = (clampedColMag * 0.001f) / Mathf.Pow(vertDist, clampedColMag);

                        if (distClamp > 0.001f)
                        {
                            curDisplacePart.position += clampedTranslation * surfaceDot * Mathf.Min(clampedColMag * 0.01f, distClamp) * massFactor;

                            //Detach detachable parts
                            if (curDisplacePart.GetComponent<DetachablePart>())
                            {
                                detachedPart = curDisplacePart.GetComponent<DetachablePart>();

                                if (colMag * surfaceDot * massFactor > detachedPart.looseForce && detachedPart.looseForce >= 0)
                                {
                                    detachedPart.initialPos = curDisplacePart.localPosition;
                                    detachedPart.Detach(true);
                                }
                                else if (colMag * surfaceDot * massFactor > detachedPart.breakForce)
                                {
                                    detachedPart.Detach(false);
                                }
                            }
                            //Maybe the parent of this part is what actually detaches, useful for displacing compound colliders that represent single detachable objects
                            else if (curDisplacePart.parent != null && curDisplacePart.parent.GetComponent<DetachablePart>())
                            {
                                detachedPart = curDisplacePart.parent.GetComponent<DetachablePart>();

                                if (!detachedPart.detached)
                                {
                                    if (colMag * surfaceDot * massFactor > detachedPart.looseForce && detachedPart.looseForce >= 0)
                                    {
                                        detachedPart.initialPos = curDisplacePart.parent.localPosition;
                                        detachedPart.Detach(true);
                                    }
                                    else if (colMag * surfaceDot * massFactor > detachedPart.breakForce)
                                    {
                                        detachedPart.Detach(false);
                                    }
                                }
                                else if (detachedPart.hinge)
                                {
                                    detachedPart.displacedAnchor += curDisplacePart.parent.InverseTransformDirection(clampedTranslation * surfaceDot * Mathf.Min(clampedColMag * 0.01f, distClamp) * massFactor);
                                }
                            }

#if RVP
                        //Damage suspensions and wheels
                        damagedSus = curDisplacePart.GetComponent<Suspension>();
                        if (damagedSus)
                        {
                            if ((!damagedSus.wheel.grounded && ignoreGroundedWheels) || !ignoreGroundedWheels)
                            {
                                curDisplacePart.RotateAround(damagedSus.tr.TransformPoint(damagedSus.damagePivot), Vector3.ProjectOnPlane(damagePoint - curDisplacePart.position, -translation.normalized), clampedColMag * surfaceDot * distClamp * 20 * massFactor);

                                damagedSus.wheel.damage += clampedColMag * surfaceDot * distClamp * 10 * massFactor;

                                if (clampedColMag * surfaceDot * distClamp * 10 * massFactor > damagedSus.jamForce)
                                {
                                    damagedSus.jammed = true;
                                }

                                if (clampedColMag * surfaceDot * distClamp * 10 * massFactor > damagedSus.wheel.detachForce)
                                {
                                    damagedSus.wheel.Detach();
                                }

                                foreach (SuspensionPart curPart in damagedSus.movingParts)
                                {
                                    if (curPart.connectObj && !curPart.isHub && !curPart.solidAxle)
                                    {
                                        if (!curPart.connectObj.GetComponent<SuspensionPart>())
                                        {
                                            curPart.connectPoint += curPart.connectObj.InverseTransformDirection(clampedTranslation * surfaceDot * Mathf.Min(clampedColMag * 0.01f, distClamp) * massFactor);
                                        }
                                    }
                                }
                            }
                        }

                        //Damage hover wheels
                        HoverWheel damagedHoverWheel = curDisplacePart.GetComponent<HoverWheel>();
                        if (damagedHoverWheel)
                        {
                            if ((!damagedHoverWheel.grounded && ignoreGroundedWheels) || !ignoreGroundedWheels)
                            {
                                if (clampedColMag * surfaceDot * distClamp * 10 * massFactor > damagedHoverWheel.detachForce)
                                {
                                    damagedHoverWheel.Detach();
                                }
                            }
                        }
#endif
                        }
                    }
                }
        }

        //Apply damage to meshes
        private void FinalizeDamage()
        {
            if (deformMeshes != null && deformMeshes.Length > 0)
            {
                //Apply vertices to actual meshes
                for (int i = 0; i < deformMeshes.Length; i++)
                {
                    if (damagedMeshes[i])
                    {
                        tempMeshes[i].vertices = meshVertices[i].verts;

                        if (calculateNormals)
                        {
                            tempMeshes[i].RecalculateNormals();
                        }

                        tempMeshes[i].RecalculateBounds();
                    }

                    damagedMeshes[i] = false;
                }
            }

            if (deformColliders != null && deformColliders.Length > 0)
            {
                //Apply vertices to actual mesh colliders
                for (int i = 0; i < deformColliders.Length; i++)
                {
                    if (damagedCols[i])
                    {
                        tempCols[i].vertices = colVertices[i].verts;
                        deformColliders[i].sharedMesh = null;
                        deformColliders[i].sharedMesh = tempCols[i];
                    }

                    damagedCols[i] = false;
                }
            }
        }

        public void Repair()
        {
#if RVP
            //Fix damaged parts
            for (int i = 0; i < damageParts.Length; i++)
            {
                if (damageParts[i].GetComponent<Motor>())
                {
                    damageParts[i].GetComponent<Motor>().health = 1;
                }

                if (damageParts[i].GetComponent<Transmission>())
                {
                    damageParts[i].GetComponent<Transmission>().health = 1;
                }
            }
#endif

            if (deformMeshes != null && deformMeshes.Length > 0)
                //Restore deformed meshes
                for (int i = 0; i < deformMeshes.Length; i++)
                {
                    for (int j = 0; j < meshVertices[i].verts.Length; j++)
                    {
                        meshVertices[i].verts[j] = meshVertices[i].initialVerts[j];
                    }

                    tempMeshes[i].vertices = meshVertices[i].verts;
                    tempMeshes[i].RecalculateNormals();
                    tempMeshes[i].RecalculateBounds();

                    //Fix shattered parts
                    ShatterPart fixedShatter = deformMeshes[i].GetComponent<ShatterPart>();
                    if (fixedShatter)
                    {
                        fixedShatter.shattered = false;

                        if (fixedShatter.brokenMaterial)
                        {
                            fixedShatter.rend.sharedMaterial = fixedShatter.initialMat;
                        }
                        else
                        {
                            fixedShatter.rend.enabled = true;
                        }
                    }
                }

            if (deformColliders != null && deformColliders.Length > 0)
                //Restore deformed mesh colliders
                for (int i = 0; i < deformColliders.Length; i++)
                {
                    for (int j = 0; j < colVertices[i].verts.Length; j++)
                    {
                        colVertices[i].verts[j] = colVertices[i].initialVerts[j];
                    }

                    tempCols[i].vertices = colVertices[i].verts;
                    deformColliders[i].sharedMesh = null;
                    deformColliders[i].sharedMesh = tempCols[i];
                }

#if RVP
            //Fix displaced parts
            Suspension fixedSus;
            Transform curDisplacePart;
            for (int i = 0; i < displaceParts.Length; i++)
            {
                curDisplacePart = displaceParts[i];
                curDisplacePart.localPosition = initialPartPositions[i];

                if (curDisplacePart.GetComponent<DetachablePart>())
                {
                    curDisplacePart.GetComponent<DetachablePart>().Reattach();
                }
                else if (curDisplacePart.parent.GetComponent<DetachablePart>())
                {
                    curDisplacePart.parent.GetComponent<DetachablePart>().Reattach();
                }

                fixedSus = curDisplacePart.GetComponent<Suspension>();
                if (fixedSus)
                {
                    curDisplacePart.localRotation = fixedSus.initialRotation;
                    fixedSus.jammed = false;

                    foreach (SuspensionPart curPart in fixedSus.movingParts)
                    {
                        if (curPart.connectObj && !curPart.isHub && !curPart.solidAxle)
                        {
                            if (!curPart.connectObj.GetComponent<SuspensionPart>())
                            {
                                curPart.connectPoint = curPart.initialConnectPoint;
                            }
                        }
                    }
                }
            }

            //Fix wheels
            foreach (Wheel curWheel in vp.wheels)
            {
                curWheel.Reattach();
                curWheel.FixTire();
                curWheel.damage = 0;
            }

            //Fix hover wheels
            foreach (HoverWheel curHoverWheel in vp.hoverWheels)
            {
                curHoverWheel.Reattach();
            }
#endif
        }

        //Draw collisionIgnoreHeight gizmos
        private void OnDrawGizmosSelected()
        {
            Vector3 startPoint = transform.TransformPoint(Vector3.up * collisionIgnoreHeight);
            Gizmos.color = Color.red;
            Gizmos.DrawRay(startPoint, transform.forward);
            Gizmos.DrawRay(startPoint, -transform.forward);
            Gizmos.DrawRay(startPoint, transform.right);
            Gizmos.DrawRay(startPoint, -transform.right);

            foreach (var t in gameObject.GetComponentsInChildren<Transform>().Where(x => x.name.Contains("wheel")))
                try
                {
                    TextGizmo.Draw(t.position, damageLogger[System.Array.IndexOf(deformMeshes.Select(x => x.name).ToArray(), t.name)].ToString());
                }
                catch
                {
                }
        }

        //Destroy loose parts
        private void OnDestroy()
        {
            if (displaceParts != null)
                foreach (Transform curPart in displaceParts)
                {
                    if (curPart != null && curPart.GetComponent<DetachablePart>() != null && curPart.parent == null)
                    {
                        if (curPart.GetComponent<DetachablePart>() && curPart.parent == null)
                        {
                            Destroy(curPart.gameObject);
                        }
                        else if (curPart.parent.GetComponent<DetachablePart>() && curPart.parent.parent == null)
                        {
                            Destroy(curPart.parent.gameObject);
                        }
                    }
                }
        }
    }

    //Class for easier mesh data manipulation
    internal class meshVerts
    {
        public Vector3[] verts; //Current mesh vertices
        public Vector3[] initialVerts; //Original mesh vertices
    }

    internal class DamageLogger
    {
        private Vector3[] verticePosition;
        private Vector3[] lastVerticePosition;

        public DamageLogger(Vector3[] firstRead)
        {
            int len = firstRead.Length;

            verticePosition = new Vector3[len];
            lastVerticePosition = new Vector3[len];

            // Set first read
            for (int i = 0; i < len; ++i)
                verticePosition[i] = new Vector3(firstRead[i].x, firstRead[i].y, firstRead[i].z);
        }

        public void UpdateVertice(int index, Vector3 value)
        {
            lastVerticePosition[index] = value;
        }

        public float DamageAverage()
        {
            return GetDistances().Average();
        }

        private IEnumerable<float> GetDistances()
        {
            for (int i = 0; i < verticePosition.Length; ++i)
                yield return Vector3.Distance(verticePosition[i], lastVerticePosition[i]);
        }

        public string ToString()
        {
            return string.Format("Damage Avg: {0}", DamageAverage());
        }
    }
}