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153 行
4.2 KiB
153 行
4.2 KiB
using System.Collections.Generic;
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using UnityEngine;
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public enum InteractionType { None = 0, PickUp, Cook, Talk };
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public class InteractionManager : MonoBehaviour
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{
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[HideInInspector] public InteractionType currentInteractionType; //This is checked by conditions in the StateMachine
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[SerializeField] private InputReader _inputReader = default;
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//To store the object we are currently interacting with
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private LinkedList<Interaction> _potentialInteractions = new LinkedList<Interaction>();
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//Events for the different interaction types
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[Header("Broadcasting on")]
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[SerializeField] private ItemEventChannelSO _onObjectPickUp = default;
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[SerializeField] private VoidEventChannelSO _onCookingStart = default;
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[SerializeField] private DialogueActorChannelSO _startTalking = default;
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//UI event
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[SerializeField] private InteractionUIEventChannelSO _toggleInteractionUI = default;
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[Header("Listening to")]
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[SerializeField] private VoidEventChannelSO _onInteractionEnded = default;
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private void OnEnable()
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{
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_inputReader.interactEvent += OnInteractionButtonPress;
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_onInteractionEnded.OnEventRaised += OnInteractionEnd;
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}
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private void OnDisable()
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{
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_inputReader.interactEvent -= OnInteractionButtonPress;
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_onInteractionEnded.OnEventRaised -= OnInteractionEnd;
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}
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// Called mid-way through the AnimationClip of collecting
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private void Collect()
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{
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GameObject itemObject = _potentialInteractions.First.Value.interactableObject;
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_potentialInteractions.RemoveFirst();
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if (_onObjectPickUp != null)
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{
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ItemSO currentItem = itemObject.GetComponent<CollectableItem>().GetItem();
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_onObjectPickUp.RaiseEvent(currentItem);
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}
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Destroy(itemObject); //TODO: maybe move this destruction in a more general manger, to implement a removal SFX
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RequestUpdateUI(false);
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}
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private void OnInteractionButtonPress()
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{
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if (_potentialInteractions.Count == 0)
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return;
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currentInteractionType = _potentialInteractions.First.Value.type;
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switch (_potentialInteractions.First.Value.type)
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{
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case InteractionType.Cook:
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if (_onCookingStart != null)
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{
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_onCookingStart.RaiseEvent();
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_inputReader.EnableMenuInput();
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}
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break;
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case InteractionType.Talk:
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if (_startTalking != null)
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{
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_potentialInteractions.First.Value.interactableObject.GetComponent<StepController>().InteractWithCharacter();
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_inputReader.EnableDialogueInput();
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}
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break;
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//No need to do anything for Pickup type, the StateMachine will transition to the state
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//and then the AnimationClip will call Collect()
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}
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}
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//Called by the Event on the trigger collider on the child GO called "InteractionDetector"
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public void OnTriggerChangeDetected(bool entered, GameObject obj)
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{
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if (entered)
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AddPotentialInteraction(obj);
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else
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RemovePotentialInteraction(obj);
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}
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private void AddPotentialInteraction(GameObject obj)
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{
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Interaction newPotentialInteraction = new Interaction(InteractionType.None, obj);
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if (obj.CompareTag("Pickable"))
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{
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newPotentialInteraction.type = InteractionType.PickUp;
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}
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else if (obj.CompareTag("CookingPot"))
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{
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newPotentialInteraction.type = InteractionType.Cook;
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}
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else if (obj.CompareTag("NPC"))
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{
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newPotentialInteraction.type = InteractionType.Talk;
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}
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if (newPotentialInteraction.type != InteractionType.None)
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{
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_potentialInteractions.AddFirst(newPotentialInteraction);
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RequestUpdateUI(true);
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}
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}
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private void RemovePotentialInteraction(GameObject obj)
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{
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LinkedListNode<Interaction> currentNode = _potentialInteractions.First;
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while (currentNode != null)
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{
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if (currentNode.Value.interactableObject == obj)
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{
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_potentialInteractions.Remove(currentNode);
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break;
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}
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currentNode = currentNode.Next;
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}
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RequestUpdateUI(_potentialInteractions.Count > 0);
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}
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private void RequestUpdateUI(bool visible)
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{
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if (visible)
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_toggleInteractionUI.RaiseEvent(true, _potentialInteractions.First.Value.type);
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else
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_toggleInteractionUI.RaiseEvent(false, InteractionType.None);
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}
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private void OnInteractionEnd()
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{
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switch (currentInteractionType)
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{
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case InteractionType.Cook:
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case InteractionType.Talk:
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//We show the UI after cooking or talking, in case player wants to interact again
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RequestUpdateUI(true);
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break;
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}
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_inputReader.EnableGameplayInput();
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}
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}
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