upload "kind" alien swarm

game/server/skyboxswapper.cpp

@@ -0,0 +1,80 @@
+//=========== Copyright (c) Valve Corporation, All rights reserved. ===========
+//
+// Simple entity to switch the map's 2D skybox texture when triggered.
+//
+//=============================================================================
+
+#include "cbase.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+
+//-----------------------------------------------------------------------------
+// CSkyboxSwapper
+//-----------------------------------------------------------------------------
+class CSkyboxSwapper : public CServerOnlyPointEntity
+{
+	DECLARE_CLASS( CSkyboxSwapper, CServerOnlyPointEntity );
+public:
+	DECLARE_DATADESC();
+
+	virtual void Spawn( void );
+	virtual void Precache( void );
+
+	void InputTrigger( inputdata_t &inputdata );
+
+protected:
+	string_t m_iszSkyboxName;
+};
+
+LINK_ENTITY_TO_CLASS(skybox_swapper, CSkyboxSwapper);
+
+BEGIN_DATADESC( CSkyboxSwapper )
+	DEFINE_KEYFIELD( m_iszSkyboxName, FIELD_STRING, "SkyboxName" ),
+	// Inputs
+	DEFINE_INPUTFUNC(FIELD_VOID, "Trigger", InputTrigger),
+END_DATADESC()
+
+
+//-----------------------------------------------------------------------------
+// Purpose: not much
+//-----------------------------------------------------------------------------
+void CSkyboxSwapper::Spawn( void )
+{
+	Precache();
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Precache the skybox materials.
+//-----------------------------------------------------------------------------
+void CSkyboxSwapper::Precache( void )
+{
+	if ( Q_strlen( m_iszSkyboxName.ToCStr() ) == 0 )
+	{
+		Warning( "skybox_swapper (%s) has no skybox specified!\n", GetEntityName() );
+		return;
+	}
+
+	char  name[ MAX_PATH ];
+	char *skyboxsuffix[ 6 ] = { "rt", "bk", "lf", "ft", "up", "dn" };
+	for ( int i = 0; i < 6; i++ )
+	{
+		Q_snprintf( name, sizeof( name ), "skybox/%s%s", m_iszSkyboxName.ToCStr(), skyboxsuffix[i] );
+		PrecacheMaterial( name );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Input handler that triggers the skybox swap.
+//-----------------------------------------------------------------------------
+void CSkyboxSwapper::InputTrigger( inputdata_t &inputdata )
+{
+	static ConVarRef skyname( "sv_skyname", false );
+	if ( !skyname.IsValid() )
+	{
+		Warning( "skybox_swapper (%s) trigger input failed - cannot find 'sv_skyname' convar!\n", GetEntityName() );
+		return;
+	}
+	skyname.SetValue( m_iszSkyboxName.ToCStr() );
+}