510 lines
16 KiB
C#
510 lines
16 KiB
C#
using UnityEngine;
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using RR.Common.Interfaces;
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using RR.Game2D.Core;
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using RR.Game2D.Behaviour;
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using RR.Game2D.Core.Interfaces;
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namespace RR.Game2D.Entities.Projectiles
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{
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[DisallowMultipleComponent]
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[RequireComponent(typeof(Rigidbody2D),
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typeof(CapsuleCollider2D))]
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public class PickableProjectile : PhysicsProjectile, IPickable, IBouncy, IRecallable
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{
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public static PickableProjectile Instance { get; private set; }
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public enum State { Held, Airborne, Grounded, Returning }
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public State CurrentState { get; private set; } = State.Grounded;
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[Header("Подбор и прикрепление")]
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[SerializeField] private Vector3 heldLocalOffset = new(0.25f, 0.1f, 0f);
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[SerializeField] private float heldScale = 1.5f;
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[SerializeField] private float ignoreOwnerTimeOnThrow = 0.1f;
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[Header("Приземление")]
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[SerializeField] private float groundVelocity = 1f;
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[SerializeField] private float maxGroundSlideTime = 1f;
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[SerializeField] private bool lockWhenLanded = true;
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[Header("Отскоки")]
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[SerializeField] private int maxBounces = 3;
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[SerializeField] private float minBounceSpeed = 0.8f;
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[SerializeField] private float stickDelayAfterImpact = 0.03f;
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[Header("Возврат")]
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[SerializeField, Range(0, 100)] int recallScreenMarginPercent = 5;
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[SerializeField] private float recallArriveDistance = 1f;
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[SerializeField] private float recallSpeed = 16f;
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[SerializeField] private float recallStartDistance = 8f;
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[Header("Gizmos")]
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[SerializeField] private bool drawGizmos;
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[SerializeField] private Color gizmoColor = new (0.2f, 0.8f, 1f, 0.35f);
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private Transform holderAttachPoint;
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private int bounceCounter;
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private float lastImpactTime = -999f;
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private readonly Vector3 baseLocalScale = Vector3.one;
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private bool hadBeenHeld;
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private GameObject lastKnownHolder;
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private float lastGroundTouchTime;
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private GameObject jumpPad;
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// -------------------------------------------
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// Методы Unity
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//
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#region Unity Methods
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//---------------------------
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// Singleton
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//---------------------------
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protected override void Awake()
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{
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rb = GetComponent<Rigidbody2D>();
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col = GetComponent<CapsuleCollider2D>();
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col.isTrigger = true;
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if (Instance != null && Instance != this)
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{
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Destroy(gameObject);
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return;
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}
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Instance = this;
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jumpPad = new GameObject("Projectile Jump Pad");
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jumpPad.AddComponent<BoxCollider2D>();
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jumpPad.AddComponent<JumpPad2D>();
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jumpPad.GetComponent<BoxCollider2D>().isTrigger = true;
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Vector3 jumpPadScale = jumpPad.transform.localScale;
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jumpPadScale.y = 0.1f;
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jumpPad.transform.localScale = jumpPadScale;
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jumpPad.SetActive(false);
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jumpPad.GetComponent<JumpPad2D>().PlayerJumped += OnPlayerJumped;
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}
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private void OnDestroy()
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{
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if (Instance == this) Instance = null;
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Destroy(jumpPad);
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}
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//---------------------------
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//
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//---------------------------
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private void Start()
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{
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rb.collisionDetectionMode = CollisionDetectionMode2D.Continuous;
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col.isTrigger = false;
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if (CurrentState != State.Held)
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BecomeGrounded();
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}
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protected override void FixedUpdate()
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{
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base.FixedUpdate();
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if (!lockWhenLanded && CurrentState == State.Airborne)
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{
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if (rb.linearVelocity.sqrMagnitude < (groundVelocity * groundVelocity))
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BecomeGrounded();
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}
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if ((CurrentState == State.Airborne || CurrentState == State.Returning) && rb.linearVelocity.sqrMagnitude > 0.0001f)
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transform.up = rb.linearVelocity.normalized;
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if (CurrentState == State.Airborne && rb.linearVelocity.magnitude < groundVelocity)
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BecomeGrounded();
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if (hadBeenHeld && CurrentState != State.Held)
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Recall();
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}
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protected override void OnCollisionEnter2D(Collision2D collision)
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{
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var otherRb = collision.rigidbody ? collision.rigidbody : collision.otherRigidbody;
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var otherGO = (collision.collider ? collision.collider.attachedRigidbody?.gameObject : null)
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?? otherRb?.gameObject
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?? collision.gameObject;
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if (otherGO != null)
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{
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if (otherGO.CompareTag("Player") && CurrentState != State.Held)
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{
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if (TryPickup(otherGO)) return;
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}
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else if (otherGO.CompareTag("Enemy"))
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{
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EnemyController enemyController = otherGO.GetComponent<EnemyController>();
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if (enemyController != null)
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{
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enemyController.TakeDamage(projectileDamage);
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}
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}
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}
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if (!IsInHitLayer(collision.collider.gameObject.layer)) return;
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Vector2 point = collision.GetContact(0).point;
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OnHit(collision, point, collision.relativeVelocity);
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if (CurrentState == State.Airborne)
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{
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if (TryBounce(collision))
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{
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lastImpactTime = Time.time;
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return;
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}
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BecomeGrounded();
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}
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if (collision.collider.CompareTag("Ground"))
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lastGroundTouchTime = Time.time;
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}
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private void OnCollisionStay2D(Collision2D collision)
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{
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if (collision.collider.CompareTag("Ground"))
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{
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if (Time.time - lastGroundTouchTime > maxGroundSlideTime && CurrentState != State.Returning)
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BecomeGrounded();
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}
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}
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protected override void OnTriggerEnter2D(Collider2D other)
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{
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if (other.CompareTag("Player"))
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{
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if (TryPickup(other.gameObject)) return;
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}
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else if (other.CompareTag("Enemy"))
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{
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other.TryGetComponent<EnemyController>(out var controller);
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controller.TakeDamage(projectileDamage);
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}
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else
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{
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base.OnTriggerEnter2D(other);
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}
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}
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//
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//
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// -------------------------------------------
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#endregion
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// -------------------------------------------
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// Переопределенные методы родителей
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//
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#region Parent Methods
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protected override void OnHit(Collision2D collision, Vector2 point, Vector2 relativeVelocity)
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{
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//TryDealDamage(collision.collider, point, relativeVelocity);
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PlayFX(point);
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OnImpactFinal(collision);
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}
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protected override void OnImpactFinal(Collision2D collision)
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{
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if (!TryBounce(collision) && CurrentState == State.Airborne)
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BecomeGrounded();
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}
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protected override void OnImpactFinal(Collider2D other)
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{
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if (Time.time - lastImpactTime > stickDelayAfterImpact && CurrentState == State.Airborne)
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BecomeGrounded();
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}
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#endregion
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//
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//
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// -------------------------------------------
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// -------------------------------------------
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// Подбор
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//
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#region Pickup
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public bool TryPickup(GameObject newOwner, Transform optionalAttachPoint = null)
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{
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if (CurrentState == State.Held) return true;
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owner = newOwner;
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lastKnownHolder = newOwner;
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holderAttachPoint = optionalAttachPoint ?? FindAttachPoint(newOwner);
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var fireScript = newOwner.GetComponent<PlayerFireScript>();
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if (!holderAttachPoint && fireScript != null)
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holderAttachPoint = fireScript.attachPoint;
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if (!holderAttachPoint)
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holderAttachPoint = newOwner.transform;
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rb.linearVelocity = Vector2.zero;
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rb.angularVelocity = 0f;
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rb.bodyType = RigidbodyType2D.Kinematic;
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col.enabled = false;
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transform.SetParent(holderAttachPoint);
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transform.SetPositionAndRotation(holderAttachPoint.TransformPoint(heldLocalOffset), new Quaternion(0, 90f, 0, 0));
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transform.localScale = baseLocalScale * heldScale;
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if (fireScript != null) fireScript.BindProjectile(this);
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//StartCoroutine(IgnoreOwnerTemporarily(owner, ignoreOwnerTimeOnThrow));
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CurrentState = State.Held;
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launched = false;
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hadBeenHeld = true;
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jumpPad.SetActive(false);
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return true;
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}
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/// <summary>
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/// Метод для получения точки привязки на игроке.
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/// </summary>
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/// <param name="holder">Игрок, который держит снаряд</param>
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/// <param name="preferred">Опциональная точка привязки. При передаче, снаряд будет привязан на нее</param>
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/// <returns>Transform attachPoint - точка привязки</returns>
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private Transform FindAttachPoint(GameObject holder, Transform preferred = null)
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{
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if (preferred) return preferred;
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PlayerFireScript fireScript = holder.GetComponent<PlayerFireScript>();
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if (fireScript && fireScript.attachPoint) return fireScript.attachPoint;
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return holder.transform;
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}
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#endregion
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//
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//
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// -------------------------------------------
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// -------------------------------------------
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// Отскок
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//
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#region Bounce
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public bool TryBounce(Collision2D collision)
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{
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if (Time.time - lastImpactTime < stickDelayAfterImpact) return true;
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if (bounceCounter > maxBounces) return false;
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Vector2 velocityIn = rb.linearVelocity;
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float speed = velocityIn.magnitude;
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if (speed < minBounceSpeed) return false;
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Vector2 direction = Vector2.Reflect(velocityIn, collision.contacts[0].normal);
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rb.linearVelocity = col.sharedMaterial.bounciness * direction;
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if (collision.collider.CompareTag("Ground") || collision.collider.CompareTag("Trap"))
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bounceCounter++;
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return true;
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}
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#endregion
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//
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//
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// -------------------------------------------
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// -------------------------------------------
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// Запуск
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//
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#region Launch
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public override void Launch(Vector2 direction, float speed = -1, GameObject thrower = null)
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{
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if (CurrentState == State.Held)
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transform.SetParent(null);
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owner = thrower;
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lastKnownHolder = thrower;
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holderAttachPoint = null;
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rb.bodyType = RigidbodyType2D.Dynamic;
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col.enabled = true;
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col.isTrigger = false;
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launched = true;
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Vector2 launchDirection = direction.sqrMagnitude > 0.0001f ? direction.normalized : Vector2.right;
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float finalSpeed = (speed > 0f) ? speed : initialSpeed;
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rb.linearVelocity = Vector2.zero;
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rb.angularVelocity = 0f;
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rb.AddForce(finalSpeed * rb.mass * launchDirection, ForceMode2D.Impulse);
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transform.up = launchDirection;
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transform.localScale = baseLocalScale;
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if (thrower != null && ignoreOwnerTimeOnThrow > 0f)
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StartCoroutine(IgnoreOwnerTemporarily(thrower, ignoreOwnerTimeOnThrow));
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CurrentState = State.Airborne;
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bounceCounter = 0;
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}
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#endregion
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//
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//
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// -------------------------------------------
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// -------------------------------------------
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// Возвращение
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//
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#region Recall
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public void Recall()
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{
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GameObject playerGo = lastKnownHolder;
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if (playerGo == null || !playerGo.activeInHierarchy)
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playerGo = (GameManager.Instance && GameManager.Instance.PlayerObj)
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? GameManager.Instance.PlayerObj
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: GameObject.FindWithTag("Player");
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if (!playerGo) return;
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var attachPoint = FindAttachPoint(playerGo);
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bool isVisible;
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var mainCamera = Camera.main;
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float margin = recallScreenMarginPercent / 100f;
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if (mainCamera)
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{
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Vector3 viewPoint = mainCamera.WorldToViewportPoint(transform.position);
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isVisible = viewPoint.x >= -margin && viewPoint.x <= 1f + margin
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&& viewPoint.y >= -margin && viewPoint.y <= 1f + margin;
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}
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else
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{
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Vector2 toOwnerTest = (Vector2)attachPoint.position - rb.position;
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isVisible = (toOwnerTest.magnitude <= recallStartDistance);
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}
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Vector2 toOwner = (Vector2)attachPoint.position - rb.position;
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float dist = toOwner.magnitude;
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if (CurrentState != State.Returning)
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{
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if (!isVisible)
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{
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CurrentState = State.Returning;
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rb.bodyType = RigidbodyType2D.Dynamic;
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col.isTrigger = true;
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}
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else
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{
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return;
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}
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}
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Vector2 dir = (dist > 0.001f) ? (toOwner / dist) : rb.linearVelocity.normalized;
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rb.linearVelocity = dir * recallSpeed;
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if (rb.linearVelocity.sqrMagnitude > 0.01f)
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transform.up = rb.linearVelocity.normalized;
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if (dist <= recallArriveDistance)
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TryPickup(playerGo);
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}
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#endregion
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//
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//
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// -------------------------------------------
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// -------------------------------------------
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// Собственные незаисимые методы
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//
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#region Self methods
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/// <summary>
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/// Метод для заморозки снаряда на земле.
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/// </summary>
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private void BecomeGrounded()
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{
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launched = false;
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CurrentState = State.Grounded;
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if (lockWhenLanded)
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{
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rb.linearVelocity = Vector2.zero;
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rb.angularVelocity = 0f;
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rb.bodyType = RigidbodyType2D.Kinematic;
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}
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else
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{
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rb.bodyType = RigidbodyType2D.Dynamic;
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}
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col.enabled = true;
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col.isTrigger = true;
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transform.SetParent(null, true);
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bounceCounter = 0;
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MoveJumpPad();
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jumpPad.SetActive(true);
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}
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/// <summary>
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/// Метод для перемещения прыжковой платформы Тамагочика
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/// </summary>
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private void MoveJumpPad()
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{
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float sizeX = col.bounds.size.y;
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float sizeY = col.bounds.size.x;
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Vector3 jumpPadPos = transform.position;
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float jumpPadY = Mathf.Sqrt(sizeX * sizeX * Mathf.Pow(Mathf.Cos(transform.localEulerAngles.z), 2) + sizeY * sizeY * Mathf.Pow(Mathf.Sin(transform.localEulerAngles.z), 2));
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jumpPadPos.y = jumpPadPos.y + 0.5f * jumpPadY;
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jumpPad.transform.position = jumpPadPos;
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}
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/// <summary>
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/// Метод для обработки событий при отпрыгивания игрока от прыжковой платформы.
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/// </summary>
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/// <param name="playerObj"></param>
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private void OnPlayerJumped(GameObject playerObj)
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{
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TryPickup(playerObj);
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}
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#endregion
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//
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//
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// -------------------------------------------
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}
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} |