Added Entity event OnCollisionEnter2D

GlitchyEngine/src/Scripting/CoreClrHelper.bf

@@ -2,6 +2,8 @@ using NetHostBeef;
 using System;
 using System.Interop;
 using GlitchyEngine.Core;
+using GlitchyEngine.Scripting.Classes;
+
 using static GlitchyEngine.Scripting.ScriptGlue;
 
 namespace GlitchyEngine.Scripting;
@@ -11,6 +13,7 @@ public struct ScriptFunctionPointers
     public function void(UUID entityId) OnCreate;
     public function void(UUID entityId, float deltaTime) OnUpdate;
     public function void(UUID entityId, bool callEntity) OnDestroy;
+    public function void(UUID entityId, Collision2D collision) OnCollisionEnter2D;
 }
 
 static class CoreClrHelper
@@ -124,6 +127,7 @@ static class CoreClrHelper
 		GetFunctionPointerUnmanagedCallersOnly("GlitchyEngine.ScriptGlue, ScriptCore", "InvokeEntityOnCreate", out _entityScriptFunctions.OnCreate);
 		GetFunctionPointerUnmanagedCallersOnly("GlitchyEngine.ScriptGlue, ScriptCore", "InvokeEntityOnUpdate", out _entityScriptFunctions.OnUpdate);
 		GetFunctionPointerUnmanagedCallersOnly("GlitchyEngine.ScriptGlue, ScriptCore", "InvokeEntityOnDestroy", out _entityScriptFunctions.OnDestroy);
+		GetFunctionPointerUnmanagedCallersOnly("GlitchyEngine.ScriptGlue, ScriptCore", "InvokeEntityOnCollisionEnter2D", out _entityScriptFunctions.OnCollisionEnter2D);
 	}
 
 	public static void LoadAppAssembly(Span<uint8> appAssemblyData, Span<uint8> pdbData)

GlitchyEngine/src/Scripting/NewScriptClass.bf

@@ -100,4 +100,10 @@ class NewScriptInstance : RefCounter
 
 		ScriptEngine.UnregisterScriptInstance(_entityId);
 	}
+
+	public void InvokeOnCollisionEnter2D(Collision2D collision)
+	{
+		if (_scriptClass.Methods.HasFlag(.OnCollisionEnter2D))
+			CoreClrHelper._entityScriptFunctions.OnCollisionEnter2D(_entityId, collision);
+	}
 }

GlitchyEngine/src/Scripting/ScriptEngine.bf

@@ -392,6 +392,7 @@ static class ScriptEngine
 	    OnCreate = 0x1,
 	    OnUpdate = 0x2,
 	    OnDestroy = 0x4,
+		OnCollisionEnter2D = 0x8,
 	}
 
 	struct ScriptClassInfo

ScriptCore/Entity.cs

@@ -14,7 +14,7 @@ namespace GlitchyEngine;
 /// <summary>
 /// The base class for all entities and scripts in the current world.
 /// </summary>
-public class Entity : EngineObject
+public partial class Entity : EngineObject
 {
     /// <summary>
     /// Gets or sets the name of the <see cref="Entity"/>.
@@ -451,4 +451,10 @@ public class Entity : EngineObject
     /// Will be called once when the entity is being destroyed.
     /// </summary>
     protected internal virtual void OnDestroy() { }
+
+    /// <summary>
+    /// Will be called
+    /// </summary>
+    /// <param name="collision"></param>
+    protected internal virtual void OnCollisionEnter2D(Collision2D collision) { }
 }

ScriptCore/ScriptGlue.cs

@@ -152,7 +152,8 @@ internal static unsafe partial class ScriptGlue
         None = 0,
         OnCreate = 0x1,
         OnUpdate = 0x2,
-        OnDestroy = 0x4
+        OnDestroy = 0x4,
+        OnCollisionEnter2D = 0x8
     }
 
     /// <summary>
@@ -210,6 +211,7 @@ internal static unsafe partial class ScriptGlue
                     methods |= HasMethod(type, nameof(Entity.OnCreate), ScriptMethods.OnCreate);
                     methods |= HasMethod(type, nameof(Entity.OnUpdate), ScriptMethods.OnUpdate);
                     methods |= HasMethod(type, nameof(Entity.OnDestroy), ScriptMethods.OnDestroy);
+                    methods |= HasMethod(type, nameof(Entity.OnCollisionEnter2D), ScriptMethods.OnCollisionEnter2D);
 
                     bool runInEditMode = type.HasCustomAttribute<RunInEditModeAttribute>();
 
@@ -310,6 +312,20 @@ internal static unsafe partial class ScriptGlue
         }
     }
     
+    [UnmanagedCallersOnly(CallConvs = [typeof(CallConvCdecl)])]
+    public static void InvokeEntityOnCollisionEnter2D(UUID entityId, Collision2D collision)
+    {
+        try
+        {
+            (Entity entity, Type type) = EntityScriptInstances[entityId];
+            entity.OnCollisionEnter2D(collision);
+        }
+        catch (Exception e)
+        {
+            Log.Exception(e);
+        }
+    }
+
     [UnmanagedCallersOnly]
     public static void InvokeEntityOnDestroy(UUID entityId, byte callDestroy)
     {