101 lines
3.2 KiB
C#
101 lines
3.2 KiB
C#
using System.Collections.Generic;
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using UnityEngine;
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public class OrbitalPosition
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{
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public float DistanceFromCentre = 0;
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public float RadiusDistance = 0;
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public Transform owner = null;
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public OrbitalPosition(GameObject _owner)
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{
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owner = _owner.transform;
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}
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public Vector3 TranslateToVec3() => new
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(
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x: DistanceFromCentre * Mathf.Cos(RadiusDistance),
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y: DistanceFromCentre * Mathf.Sin(RadiusDistance)
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);
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}
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public class GlobalOrbitalPositionManager : MonoBehaviour
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{
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static GlobalOrbitalPositionManager s_Instance = null;
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private readonly List<OrbitalPosition> m_ObjectInstances = new();
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private readonly List<Transform> m_Rings = new();
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private float m_TimeOfLastRingSpawn = float.NegativeInfinity;
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[RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.BeforeSceneLoad)] private static void OnApplicationStart()
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{
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GameObject manager = new("GLOBAL ORBITAL MANAGER");
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DontDestroyOnLoad(manager);
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s_Instance = manager.AddComponent<GlobalOrbitalPositionManager>();
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}
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public void Update()
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{
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if (Time.time - m_TimeOfLastRingSpawn > GlobalOrbitalSettings.GapDistance)
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{
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GameObject newRing = Instantiate(GlobalOrbitalSettings.RingPrefab);
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m_Rings.Add(newRing.transform);
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newRing.transform.localScale = new Vector3(10f, 10f, 1);
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m_TimeOfLastRingSpawn = Time.time;
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}
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foreach (OrbitalPosition orbitalPosition in m_ObjectInstances)
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{
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orbitalPosition.DistanceFromCentre = Mathf.Clamp(orbitalPosition.DistanceFromCentre - (Time.deltaTime * GlobalOrbitalSettings.DistanceSpeed), 0f, float.PositiveInfinity);
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orbitalPosition.RadiusDistance = (orbitalPosition.RadiusDistance + (Time.deltaTime * GlobalOrbitalSettings.RadiusSpeed)) % (Mathf.PI * 2);
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orbitalPosition.owner.position = orbitalPosition.TranslateToVec3();
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}
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List<Transform> toRemove = new();
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foreach (Transform ring in m_Rings)
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{
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float diff = Time.deltaTime * GlobalOrbitalSettings.DistanceSpeed;
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ring.localScale -= new Vector3(diff, diff, 0f);
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if (ring.localScale.x < 0)
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{
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toRemove.Add(ring);
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}
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}
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foreach (Transform ring in toRemove)
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{
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m_Rings.Remove(ring);
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Destroy(ring.gameObject);
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}
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}
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public static void RegisterOrbitalPositionInstance(OrbitalPosition newInstance) =>
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s_Instance.m_ObjectInstances.Add(newInstance);
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public static void UnregisterOrbitalPositionInstance(OrbitalPosition removedInstance) =>
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s_Instance.m_ObjectInstances.Remove(removedInstance);
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}
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public abstract class OrbitalPositionBehaviour : MonoBehaviour
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{
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protected OrbitalPosition m_OrbitalPosition = null;
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private void Start()
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{
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m_OrbitalPosition = new OrbitalPosition(gameObject);
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GlobalOrbitalPositionManager.RegisterOrbitalPositionInstance(m_OrbitalPosition);
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OnStart();
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}
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private void OnDestroy() =>
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GlobalOrbitalPositionManager.UnregisterOrbitalPositionInstance(m_OrbitalPosition);
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public abstract void OnStart();
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}
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