Stash work

Assets/Scripts/Minigames/FortFight/Projectiles/VacuumProjectile.cs

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+using System.Collections;
+using Core;
+using UnityEngine;
+
+namespace Minigames.FortFight.Projectiles
+{
+    /// <summary>
+    /// Vacuum projectile - high mass, slides along ground after landing.
+    /// On ground impact: disables gravity, moves horizontally for 2 seconds.
+    /// </summary>
+    public class VacuumProjectile : ProjectileBase
+    {
+        [Header("Vacuum Specific")]
+        [Tooltip("Speed when sliding on ground")]
+        [SerializeField] private float slideSpeed = 10f;
+        
+        [Tooltip("How long to slide before destroying")]
+        [SerializeField] private float slideDuration = 2f;
+        
+        [Tooltip("Layer mask for ground detection")]
+        [SerializeField] private LayerMask groundLayer = 1; // Default layer
+        
+        private bool isSliding = false;
+        
+        protected override void OnHit(Collider2D hit)
+        {
+            // Check if hit ground
+            if (((1 << hit.gameObject.layer) & groundLayer) != 0)
+            {
+                Logging.Debug("[VacuumProjectile] Hit ground - starting slide");
+                StartSliding();
+            }
+            // If hit wall or fort block, destroy immediately (handled by base class)
+        }
+        
+        /// <summary>
+        /// Start sliding behavior after hitting ground
+        /// </summary>
+        private void StartSliding()
+        {
+            if (isSliding) return;
+            
+            isSliding = true;
+            
+            // Disable gravity
+            if (rb2D != null)
+            {
+                rb2D.gravityScale = 0f;
+                
+                // Set velocity to horizontal only (preserve direction)
+                Vector2 horizontalVelocity = new Vector2(rb2D.linearVelocity.x, 0f).normalized * slideSpeed;
+                rb2D.linearVelocity = horizontalVelocity;
+                
+                Logging.Debug($"[VacuumProjectile] Sliding with velocity: {horizontalVelocity}");
+            }
+            
+            // Destroy after slide duration
+            StartCoroutine(SlideCoroutine());
+        }
+        
+        private IEnumerator SlideCoroutine()
+        {
+            yield return new WaitForSeconds(slideDuration);
+            
+            Logging.Debug("[VacuumProjectile] Slide duration ended - destroying");
+            DestroyProjectile();
+        }
+        
+        /// <summary>
+        /// Override to NOT destroy immediately on ground hit
+        /// </summary>
+        protected override void DestroyProjectile()
+        {
+            // Only destroy if we're done sliding or hit a wall
+            if (!isSliding || rb2D.linearVelocity.magnitude < 1f)
+            {
+                base.DestroyProjectile();
+            }
+        }
+    }
+}
+