1 files changed, 122 insertions, 0 deletions
diff --git a/Runtime/Graphics/ParticleSystem/ParticleCollisionEvents.cpp b/Runtime/Graphics/ParticleSystem/ParticleCollisionEvents.cpp
new file mode 100644
index 0000000..dfefc6a
--- /dev/null
+++ b/Runtime/Graphics/ParticleSystem/ParticleCollisionEvents.cpp
@@ -0,0 +1,122 @@
+#include "UnityPrefix.h"
+#include "ParticleCollisionEvents.h"
+
+#include "Runtime/Scripting/ScriptingUtility.h"
+#include "Runtime/Threads/Thread.h"
+
+CollisionEvents::CollisionEvents (): currentCollisionEventThreadArray(0)
+{
+}
+
+void CollisionEvents::Clear ()
+{
+	collisionEvents[0].clear ();
+	collisionEvents[1].clear ();
+}
+
+bool CollisionEvents::AddEvent (const ParticleCollisionEvent& event)
+{
+	GetCollisionEventThreadArray ().push_back (event);
+	return true;
+}
+
+int CollisionEvents::GetCollisionEventCount () const
+{
+	return GetCollisionEventScriptArray ().size ();
+}
+
+void CollisionEvents::SwapCollisionEventArrays ()
+{
+	Assert (Thread::CurrentThreadIsMainThread ());
+	currentCollisionEventThreadArray = (currentCollisionEventThreadArray+1)%2;
+	collisionEvents[currentCollisionEventThreadArray].clear ();
+}
+
+dynamic_array<ParticleCollisionEvent>& CollisionEvents::GetCollisionEventThreadArray ()
+{
+	return collisionEvents[currentCollisionEventThreadArray];
+}
+
+const dynamic_array<ParticleCollisionEvent>& CollisionEvents::GetCollisionEventScriptArray () const
+{
+	const int currentCollisionEventScriptArray = (currentCollisionEventThreadArray+1)%2;
+	return collisionEvents[currentCollisionEventScriptArray];
+}
+
+struct SortCollisionEventsByGameObject {
+	bool operator()( const ParticleCollisionEvent& ra, const ParticleCollisionEvent& rb ) const;
+};
+
+bool SortCollisionEventsByGameObject::operator()( const ParticleCollisionEvent& ra, const ParticleCollisionEvent& rb ) const
+{
+	return ra.m_RigidBodyOrColliderInstanceID < rb.m_RigidBodyOrColliderInstanceID;
+}
+
+void CollisionEvents::SortCollisionEventThreadArray ()
+{
+	std::sort (GetCollisionEventThreadArray ().begin (), GetCollisionEventThreadArray ().end (), SortCollisionEventsByGameObject ());
+}
+
+static GameObject* GetGameObjectFromInstanceID (int instanceId)
+{
+	Object* temp = Object::IDToPointer (instanceId);
+	if ( temp )
+	{
+		return (reinterpret_cast<Unity::Component*> (temp))->GetGameObjectPtr ();
+	}
+	return NULL;
+}
+
+static int GetGameObjectIDFromInstanceID (int instanceId)
+{
+	Object* temp = Object::IDToPointer (instanceId);
+	if ( temp )
+	{
+		return (reinterpret_cast<Unity::Component*> (temp))->GetGameObjectInstanceID ();
+	}
+	return 0;
+}
+
+void CollisionEvents::SendCollisionEvents (Unity::Component& particleSystem) const
+{
+	const dynamic_array<ParticleCollisionEvent>& scriptEventArray = GetCollisionEventScriptArray ();
+	GameObject* pParticleSystem = &particleSystem.GetGameObject ();
+	GameObject* collideeGO = NULL;
+	int currentId = -1;
+	for (int e = 0; e < scriptEventArray.size (); ++e)
+	{
+		if (currentId != scriptEventArray[e].m_RigidBodyOrColliderInstanceID)
+		{
+			collideeGO = GetGameObjectFromInstanceID (scriptEventArray[e].m_RigidBodyOrColliderInstanceID);
+			if (!collideeGO)
+				continue;
+			currentId = scriptEventArray[e].m_RigidBodyOrColliderInstanceID;
+			pParticleSystem->SendMessage (kParticleCollisionEvent, collideeGO, ClassID (GameObject)); // send message to particle system
+			collideeGO->SendMessage (kParticleCollisionEvent, pParticleSystem, ClassID (GameObject)); // send message to object collided with
+		}
+	}
+}
+
+int CollisionEvents::GetCollisionEvents (int instanceId, MonoParticleCollisionEvent* collisionEvents, int size) const
+{
+	const dynamic_array<ParticleCollisionEvent>& scriptEventArray = GetCollisionEventScriptArray ();
+	dynamic_array<ParticleCollisionEvent>::const_iterator iter = scriptEventArray.begin ();
+	for (; iter != scriptEventArray.end (); ++iter)
+	{
+		if (instanceId == GetGameObjectIDFromInstanceID (iter->m_RigidBodyOrColliderInstanceID))
+		{
+			int count = 0;
+			while (iter != scriptEventArray.end () && GetGameObjectIDFromInstanceID (iter->m_RigidBodyOrColliderInstanceID) == instanceId && count < size)
+			{
+				collisionEvents[count].m_Intersection = iter->m_Intersection;
+				collisionEvents[count].m_Normal = iter->m_Normal;
+				collisionEvents[count].m_Velocity = iter->m_Velocity;
+				collisionEvents[count].m_ColliderInstanceID = iter->m_ColliderInstanceID;
+				count++;
+				iter++;
+			}
+			return count;
+		}
+	}
+	return 0;
+}