Release v0.15.12.0

Barotrauma/BarotraumaClient/ClientSource/Particles/Particle.cs

@@ -3,7 +3,6 @@ using Microsoft.Xna.Framework;
 using Microsoft.Xna.Framework.Graphics;
 using System;
 using System.Collections.Generic;
-using System.Reflection.Metadata;
 
 namespace Barotrauma.Particles
 {
@@ -16,6 +15,8 @@ namespace Barotrauma.Particles
         public delegate void OnChangeHullHandler(Vector2 position, Hull currentHull);
         public OnChangeHullHandler OnChangeHull;
 
+        public OnChangeHullHandler OnCollision;
+
         private Vector2 position;
         private Vector2 prevPosition;
 
@@ -166,6 +167,7 @@ namespace Barotrauma.Particles
             HighQualityCollisionDetection = false;
 
             OnChangeHull = null;
+            OnCollision = null;
 
             subEmitters.Clear();
             hasSubEmitters = false;
@@ -340,12 +342,20 @@ namespace Barotrauma.Particles
                 Vector2 collisionNormal = Vector2.Zero;
                 if (velocity.Y < 0.0f && position.Y - prefab.CollisionRadius * size.Y < hullRect.Y - hullRect.Height)
                 {
-                    if (prefab.DeleteOnCollision) { return UpdateResult.Delete; }
+                    if (prefab.DeleteOnCollision)
+                    {
+                        OnCollision?.Invoke(position, currentHull);
+                        return UpdateResult.Delete; 
+                    }
                     collisionNormal = new Vector2(0.0f, 1.0f);
                 }
                 else if (velocity.Y > 0.0f && position.Y + prefab.CollisionRadius * size.Y > hullRect.Y)
                 {
-                    if (prefab.DeleteOnCollision) { return UpdateResult.Delete; }
+                    if (prefab.DeleteOnCollision)
+                    {
+                        OnCollision?.Invoke(position, currentHull);
+                        return UpdateResult.Delete; 
+                    }
                     collisionNormal = new Vector2(0.0f, -1.0f);
                 }
 
@@ -368,6 +378,7 @@ namespace Barotrauma.Particles
                     handleCollision(gapFound, collisionNormal);
                 }
 
+                collisionNormal = Vector2.Zero;
                 if (velocity.X < 0.0f && position.X - prefab.CollisionRadius * size.X < hullRect.X)
                 {
                     if (prefab.DeleteOnCollision) { return UpdateResult.Delete; }
@@ -487,6 +498,8 @@ namespace Barotrauma.Particles
                 velocity.Y = Math.Sign(collisionNormal.Y) * Math.Abs(velocity.Y) * prefab.Restitution;
             }
 
+            OnCollision?.Invoke(position, currentHull);
+
             velocity += subVel;
         }
 
@@ -523,6 +536,8 @@ namespace Barotrauma.Particles
                 velocity.Y *= (1.0f - prefab.Friction);
             }
 
+            OnCollision?.Invoke(position, currentHull);
+
             velocity *= prefab.Restitution;
         }