work on the stuff on client

game/server/milmoba/entitysystem.cpp

@@ -0,0 +1,120 @@
+//================= Copyright kotofyt, All rights reserved ==================//
+//
+// Purpose:
+//
+//===========================================================================//
+
+#include "entitysystem.h"
+#include "baseentity.h"
+#include "stddef.h"
+#include "string.h"
+#include "stdlib.h"
+
+
+CEntitySystem *EntitySystem()
+{
+	static CEntitySystem s_entitySystem;
+	return &s_entitySystem;
+}
+
+static struct EntityRegistry_t
+{
+	IEntityFactory *m_pFactory;
+	const char *m_szClassName;
+	struct EntityRegistry_t *m_pNext;
+} *s_pEntitiesRegistry = NULL;
+
+CEntitySystem::CEntitySystem()
+{
+	int i = 0;
+	for ( i = 0; i < MAX_EDICTS; i++ )
+	{
+		m_pEntities[i] = NULL;
+	}
+	m_nEntityCount = 0;
+}
+
+void CEntitySystem::RegisterEntityClass( IEntityFactory *pEntityFactory, const char *szClassName )
+{
+	IEntityFactory *pFactory;
+	EntityRegistry_t *pRegistry;
+
+	pFactory = GetFactoryByClassname(szClassName);
+
+	if ( pFactory != NULL )
+	{
+		// Already registered
+		return;
+	}
+	
+	pRegistry = new EntityRegistry_t;
+	pRegistry->m_pFactory = pEntityFactory;
+	pRegistry->m_pNext = s_pEntitiesRegistry;
+	pRegistry->m_szClassName = szClassName;
+	s_pEntitiesRegistry = pRegistry; 
+}
+
+CBaseEntity *CEntitySystem::CreateByClassname( const char *szName )
+{
+	IEntityFactory *pFactory;
+	CBaseEntity *pEntity;
+	int i;
+	int iSelectedSlot;
+
+	pFactory = GetFactoryByClassname(szName);
+	if ( !pFactory )
+		return NULL;
+
+	// We do not want to have more than MAX_EDICT entities
+	if ( m_nEntityCount >= MAX_EDICTS-1 )
+		return NULL;
+
+	// Search for space
+	// Could be more efficient but nobody cares
+	for ( i = 0; i < MAX_EDICTS; i++ )
+	{
+		if ( m_pEntities[i] == NULL )
+		{
+			iSelectedSlot = i;
+			break;
+		}
+	}
+
+	pEntity = pFactory->Create();
+	m_pEntities[iSelectedSlot] = pEntity;
+	m_nEntityCount++;
+	return pEntity;
+}
+
+IEntityFactory *CEntitySystem::GetFactoryByClassname( const char *szName )
+{
+	EntityRegistry_t *pEntity;
+
+	for ( pEntity = s_pEntitiesRegistry; pEntity; pEntity = pEntity->m_pNext )
+	{
+		if (!strcmp(szName, pEntity->m_szClassName))
+		{
+			return pEntity->m_pFactory;
+		}
+	}
+	return NULL;
+}
+
+
+void CEntitySystem::Think()
+{
+	CBaseEntity *pEntity;
+	int i;
+
+	for ( i = 0; i < MAX_EDICTS; i++ )
+	{
+		pEntity = m_pEntities[i];
+		if ( pEntity == NULL )
+			continue;
+
+		if ( !pEntity->m_pfnThink )
+			continue;
+
+		pEntity->m_pfnThink(pEntity);
+	}
+}