enemies spawn held in place

Assets/_Project/Scripts/Gameplay/WaveDefinition.cs

@@ -5,8 +5,7 @@ using UnityEngine;
 namespace TD.Gameplay
 {
     /// <summary>
-    /// A single spawn group within a wave: one enemy type, how many of them,
-    /// and how long to wait between each spawn.
+    /// A single spawn group within a wave: one enemy type and how many of them.
     /// </summary>
     [Serializable]
     public struct WaveEntry
@@ -16,10 +15,6 @@ namespace TD.Gameplay
 
         [Tooltip("How many enemies of this type to spawn.")]
         public int Count;
-
-        [Tooltip("Seconds between each burst. Enemies spawn in bursts of 10% of Count at a time.")]
-        public float SpawnInterval;
-
     }
 
     /// <summary>
@@ -29,16 +24,21 @@ namespace TD.Gameplay
     /// <remarks>
     /// Entries are processed in array order. Multiple entries let designers mix enemy
     /// types within one wave (e.g. 10 fast scouts followed by 3 armoured brutes).
-    /// The wave is not considered complete until all spawned enemies are dead or have
-    /// leaked — not just until all entries are spawned.
+    /// All enemies spawn held at wave start; they are released in 10% chunks separated
+    /// by <see cref="ReleaseInterval"/> seconds. The wave is not complete until all
+    /// enemies are dead or have leaked.
     /// </remarks>
     [CreateAssetMenu(fileName = "WaveDefinition", menuName = "TD/Wave Definition", order = 4)]
     public class WaveDefinition : ScriptableObject
     {
         [Tooltip("Seconds between the wave-number advancing (start of prep) and the " +
-                 "first enemy spawning. Gives players time to build before the wave hits.")]
+                 "first enemies becoming visible. Gives players time to build before the horde appears.")]
         public float PrepTime = 10f;
 
+        [Tooltip("Seconds between each chunk release. All enemies spawn held at wave " +
+                 "start and are released 10% at a time on this interval.")]
+        public float ReleaseInterval = 2f;
+
         [Tooltip("Enemy groups that make up this wave. Processed in order.")]
         public WaveEntry[] Entries;
     }