61 lines
1.9 KiB
C#
61 lines
1.9 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using Drawing;
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using System.Linq;
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namespace Drawing.Examples {
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[HelpURL("http://arongranberg.com/aline/documentation/stable/gizmosphereexample.html")]
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public class GizmoSphereExample : MonoBehaviourGizmos {
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public Color gizmoColor = new Color(1.0f, 88/255f, 85/255f);
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public Color gizmoColor2 = new Color(79/255f, 204/255f, 237/255f);
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public override void DrawGizmos () {
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using (Draw.InLocalSpace(transform)) {
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Draw.WireSphere(Vector3.zero, 0.5f, gizmoColor);
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foreach (var contact in contactForces.Values) {
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Draw.Circle(contact.lastPoint, contact.lastNormal, 0.1f * contact.impulse, gizmoColor2);
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Draw.SolidCircle(contact.lastPoint, contact.lastNormal, 0.1f * contact.impulse, gizmoColor2);
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}
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}
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}
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void FixedUpdate () {
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foreach (var collider in contactForces.Keys.ToList()) {
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var c = contactForces[collider];
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if (c.impulse > 0.1f) {
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c.impulse = Mathf.Lerp(c.impulse, 0, 10 * Time.fixedDeltaTime);
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c.smoothImpulse = Mathf.Lerp(c.impulse, c.smoothImpulse, 20 * Time.fixedDeltaTime);
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contactForces[collider] = c;
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} else {
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contactForces.Remove(collider);
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}
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}
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}
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struct Contact {
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public float impulse;
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public float smoothImpulse;
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public Vector3 lastPoint;
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public Vector3 lastNormal;
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}
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Dictionary<Collider, Contact> contactForces = new Dictionary<Collider, Contact>();
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void OnCollisionStay (Collision collision) {
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foreach (ContactPoint contact in collision.contacts) {
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if (!contactForces.ContainsKey(collision.collider)) {
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contactForces.Add(collision.collider, new Contact { impulse = 2f });
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}
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var c = contactForces[collision.collider];
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c.impulse = Mathf.Max(c.impulse, 1);
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c.lastPoint = transform.InverseTransformPoint(contact.point);
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c.lastNormal = transform.InverseTransformVector(contact.normal);
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contactForces[collision.collider] = c;
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break;
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}
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}
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}
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}
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