55 lines
1.4 KiB
C#
55 lines
1.4 KiB
C#
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using System;
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using UnityEngine;
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[RequireComponent(typeof(SpriteRenderer))]
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[RequireComponent(typeof(BoxCollider2D))]
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[RequireComponent(typeof(Rigidbody2D))]
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public class FollowMouseWithCollision : MonoBehaviour
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{
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private SpriteRenderer spriteRenderer;
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private Color originalColor;
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private bool isColliding = false;
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void Start()
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{
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// 缓存 SpriteRenderer 和原始颜色
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spriteRenderer = GetComponent<SpriteRenderer>();
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originalColor = spriteRenderer.color;
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// 确保 Rigidbody2D 是 Kinematic
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Rigidbody2D rb = GetComponent<Rigidbody2D>();
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rb.bodyType = RigidbodyType2D.Kinematic;
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}
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void Update()
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{
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// 跟随鼠标
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Vector3 mousePos = Camera.main.ScreenToWorldPoint(Input.mousePosition);
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mousePos.z = 0;
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transform.position = mousePos;
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// 碰撞提示
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if (isColliding)
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spriteRenderer.color = Color.red; // 碰撞中变红
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else
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spriteRenderer.color = originalColor; // 恢复原色
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}
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private void OnTriggerEnter2D(Collider2D other)
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{
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Debug.Log("开始碰撞: " + other.gameObject.name);
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isColliding = true;
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}
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private void OnTriggerExit2D(Collider2D other)
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{
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Debug.Log("结束碰撞: " + other.gameObject.name);
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isColliding = false;
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}
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private void OnTriggerStay2D(Collider2D other)
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{
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isColliding = true;
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}
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}
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