project-reset/Assets/Scripts/Units/Player.cs

using System.Collections;
using Drawing;
using Reset.Core;
using Sirenix.OdinInspector;
using UnityEngine;
using Unity.Netcode;

namespace Reset.Units{
    public class Player : Unit, IKillable, IInteractable{
        [HideInInspector] public PlayerControls controls;
        
        public float maxHealth{ get; set; }
        public float currentHealth{ get; set; }

        public NetworkVariable<bool> _isDowned;

        public bool IsDowned => _isDowned.Value;
        
        private float timeDowned;

        public GameObject pickupTarget;

        void Awake(){
            controls = GetComponent<PlayerControls>();
            maxHealth = 20f;
        }

        public void Attach(){
            if (IsLocalPlayer || !UnitIsNetworked()) { // 
                PlayerManager.Player = gameObject;

                PlayerManager.RequestNewController();
                GetComponent<LockOnManager>().AttachCamera(gameObject);
            }
        }

        public override void UnitStart(){
            base.UnitStart();

            SetPlayerName();
            Attach();
            ((IKillable)this).IKillableInitialize();
        }

        private void SetPlayerName(){
            name = "Player";
            if (UnitIsNetworked()){
                name += IsLocalPlayer ? ", Local" : ", Network";
            }
        }

        public override void UnitUpdate(){
            GetComponent<IKillable>().DrawHealthDebug();
        }

        public void TakeDamage(DamageSource[] sources){
            foreach (DamageSource source in sources) {
                TakeDamage(source);
            }
        }

        public void TakeDamage(DamageSource source){
            ((IKillable)this).currentHealth -= source.damageDealt;

            if (UnitIsNetworked()) {
                SetNewHealthRpc(currentHealth);
            }


        }

        // TODO: Move somewhere not stupid so there's not an identical method in Enemy.cs
        [Rpc(SendTo.Everyone)]
        public void SetNewHealthRpc(float health){
            currentHealth = health;
            
            // NOTE: only here for testing. Move out of here into some "post damage" check method
            if (((IKillable)this).currentHealth <= 0) {
                // if (UnitIsNetworked()) {
                Down();
                // } else {
                //     Kill();
                // }
            }
        }

        public void Down(){ 
            Graph.SendEvent("Downed");
        }

        public void Kill(){
            Graph.SendEvent("Killed");
        }

        public void Interact(){
            // Check if the other player can be interacted with at all 
            if (pickupTarget&& pickupTarget.GetComponent<Player>().CanInteract()) {
                // Tell the local player to start picking up the ally and switch states
                Graph.SendEvent("Picking Up Ally");
                
                // Tell the target player to start getting picked up.
                pickupTarget.GetComponent<Player>().StartPickupRpc();
                
                // Wait for the pickup timer to finish
                StartCoroutine(PickupTimer());
            }
        }

        [Rpc(SendTo.Owner)]
        public void StartPickupRpc(){
            // When picked up by another player, move into the pick up state
            // TODO: Turn all these send events into a goddamn task maybe? State stuff should happen in the state machine. Concurrent stuff should happen in code
            Graph.SendEvent("Pick Up Start");
        }

        IEnumerator PickupTimer(){
            // Start a timer and wait for it to complete
            float elapsed = 0f;

            while (elapsed < 7f) {
                elapsed += 1f * Time.deltaTime;
                
                
                
                yield return null;
            }
            
            Graph.SendEvent("Pick Up Success");
        }

        public bool CanInteract(){
            return IsDowned;
        }

        public void CancelInteract(){
            Graph.SendEvent("Pick Up Failed");
        }

        public void OnObserverDetected(EnvironmentObserver observer){
            // Try and get a Player component from the current hit object
            // The rest of the logic will continue as expected so long as an
            pickupTarget = observer.hit.collider.gameObject;
            DrawInteractStatus();
        }
        
        void DrawInteractStatus(){
            using (Draw.WithColor(Color.blue)) {
                Draw.ingame.Label2D(transform.position + Vector3.up * 2.5f, "Interactable",
                    Color.orchid);
            }
        }

        void LateUpdate(){
            // Clear the pickupTarget every frame 
            // NOTE: Will this work online?
            pickupTarget = null;
        }
    }
}