77 lines
2.5 KiB
C#
77 lines
2.5 KiB
C#
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using UnityEngine;
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// Sci-Fi Ship Controller. Copyright (c) 2018-2023 SCSM Pty Ltd. All rights reserved.
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namespace SciFiShipController
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{
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/// <summary>
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/// This will nudge a the ship away from a collider (like a wall) if it is
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/// constant contact with it for a specified duration. Attach this component
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/// to a ShipControlModule.
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/// </summary>
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[RequireComponent(typeof(Rigidbody))]
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public class PreventWallStick : MonoBehaviour
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{
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#region Public variables
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public float maxStickTime = 0.25f;
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public float wallPushVelocity = 5f;
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#endregion
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#region Private variables
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private float wallStickTimer = 0f;
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private int totalTouchingColliders = 0;
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private Rigidbody rBody;
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#endregion
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#region Initialisation Methods
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void Awake()
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{
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rBody = GetComponent<Rigidbody>();
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}
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#endregion
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#region Event Methods
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private void OnCollisionStay(Collision collision)
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{
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// If we are touching other colliders for too long, push us away from them
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wallStickTimer += Time.deltaTime;
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if (wallStickTimer > maxStickTime && rBody != null)
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{
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#if UNITY_2018_3_OR_NEWER
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rBody.AddForce(collision.GetContact(0).normal * wallPushVelocity, ForceMode.VelocityChange);
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#else
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ContactPoint[] contacts = collision.contacts;
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int numContactPoints = contacts == null ? 0 : contacts.Length;
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if (numContactPoints > 0)
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{
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rBody.AddForce(contacts[0].normal * wallPushVelocity, ForceMode.VelocityChange);
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}
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#endif
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}
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}
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private void OnCollisionEnter(Collision collision)
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{
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// Every time a collider enters, increment the number of colliders we are touching
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totalTouchingColliders++;
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}
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private void OnCollisionExit(Collision collision)
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{
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// Every time a collider exits, decrement the number of colliders we are touching
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totalTouchingColliders--;
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if (totalTouchingColliders < 1)
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{
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if (totalTouchingColliders < 0)
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{
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totalTouchingColliders = 0;
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#if UNITY_EDITOR
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Debug.Log("[DEBUG] Colliders < 0");
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#endif
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}
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wallStickTimer = 0f;
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}
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}
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#endregion
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}
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}
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