FirstComit

Assets/Script/BushBehavior.cs

@@ -0,0 +1,52 @@
+using UnityEngine;
+
+public class BushBehavior : MonoBehaviour
+{
+    [SerializeField] Transform core;
+    [SerializeField] float radius = 0.1f;
+    [SerializeField] Animator animator;
+
+    static readonly int TouchHash = Animator.StringToHash("Touch");
+
+    SlimeWalk[] slimes;
+    bool[] wasInside;
+
+    void Awake()
+    {
+        if (core == null) core = transform;
+        if (animator == null) animator = GetComponent<Animator>();
+    }
+
+    void Start()
+    {
+        slimes = Object.FindObjectsByType<SlimeWalk>(FindObjectsSortMode.None);
+        wasInside = new bool[slimes.Length];
+    }
+
+    void Update()
+    {
+        if (animator == null || core == null || slimes == null) return;
+
+        Vector2 c = core.position;
+        float r2 = radius * radius;
+
+        for (int i = 0; i < slimes.Length; i++)
+        {
+            if (slimes[i] == null) continue;
+            Vector2 p = slimes[i].transform.position;
+            bool inside = (p - c).sqrMagnitude <= r2;
+            if (inside && !wasInside[i])
+            {
+                animator.SetTrigger(TouchHash);
+            }
+            wasInside[i] = inside;
+        }
+    }
+
+    void OnDrawGizmosSelected()
+    {
+        Gizmos.color = Color.yellow;
+        Vector3 c = core != null ? core.position : transform.position;
+        Gizmos.DrawWireSphere(c, radius);
+    }
+}