提交测试代码

Assets/Scripts/Test/FlatWaterHeightProvider.cs

@@ -0,0 +1,16 @@
+using UnityEngine;
+
+public interface IWaterHeightProvider
+{
+    /// <summary>返回 worldPos 位置的水面高度（Y）</summary>
+    float GetWaterHeight(Vector3 worldPos);
+}
+
+/// <summary>
+/// 最简单的水面：固定平面（适合先跑通逻辑）
+/// </summary>
+public class FlatWaterHeightProvider : MonoBehaviour, IWaterHeightProvider
+{
+    public float waterY = 0f;
+    public float GetWaterHeight(Vector3 worldPos) => waterY;
+}