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unity/Assets/Script/DialogSystem/DialogueSystem.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.UI;
+
+public class DialogueSystem : MonoBehaviour
+{
+    [SerializeField] private Dialogue dialogue;
+
+    [SerializeField] private GameObject dialogBox;
+
+    [SerializeField] private Text dialog;
+
+    [SerializeField] private Text characterName;
+
+    [SerializeField] private Image characterSprite;
+
+    [SerializeField] private CharacterType type;
+
+    private int index;
+    private bool isInTurn;
+
+    private int npcId;
+
+    public Dictionary<int, List<DialogNode>> dialogNodes = new Dictionary<int, List<DialogNode>>();
+    private void Awake()
+    {
+        foreach (var dia in dialogue.dialogNode)
+        {
+            if (!dialogNodes.ContainsKey(dia.npcID))
+            {
+                dialogNodes.Add(dia.npcID,new List<DialogNode> { dia});
+
+            }
+            else
+            {
+                dialogNodes[dia.npcID].Add(dia);
+            }
+        }
+    }
+
+    void Update()
+    {
+        if (Input.GetKeyDown(KeyCode.E) && isInTurn)
+        {
+            Play();
+        }
+
+    }
+    private void OnTriggerEnter2D(Collider2D collision)
+    {
+        if (collision.CompareTag("Npc"))
+        {
+            Debug.Log("aaa");
+            isInTurn = true;
+            npcId = collision.GetComponent<UITip>().GetNpcId();
+        }
+
+    }
+    private void OnTriggerExit2D(Collider2D collision)
+    {
+        if (collision.CompareTag("Npc"))
+        {
+            Debug.Log("bbb");
+            isInTurn = false;
+            index = 0;
+            dialogBox.SetActive(false);
+        }
+    }
+
+    void Play()
+    {
+        dialogBox.SetActive(true);
+        DialogNode node = dialogNodes[npcId][Mathf.Clamp(index++, 0, dialogNodes[npcId].Count - 1)];
+
+        if (index - 1 == dialogNodes[npcId].Count)
+        {
+            dialog.text = "抱歉，我很忙，你可以找一下事情做";
+        }
+        else
+        {
+            dialog.text = node.dialog;
+        }
+
+        characterName.text = node.characterName;
+        characterSprite.overrideSprite = node.characterSprite;
+
+        if (index - 1 == dialogNodes[npcId].Count)
+        {
+            dialog.text = null;
+            dialogBox.SetActive(false);
+
+        }
+    }
+}