From 39ed87570bdb2f86969d4be821c94b722dc71179 Mon Sep 17 00:00:00 2001
From: Joe Ludwig <joe@valvesoftware.com>
Date: Wed, 26 Jun 2013 15:22:04 -0700
Subject: First version of the SOurce SDK 2013

---
 mp/src/game/server/env_player_surface_trigger.cpp | 135 ++++++++++++++++++++++
 1 file changed, 135 insertions(+)
 create mode 100644 mp/src/game/server/env_player_surface_trigger.cpp

(limited to 'mp/src/game/server/env_player_surface_trigger.cpp')

diff --git a/mp/src/game/server/env_player_surface_trigger.cpp b/mp/src/game/server/env_player_surface_trigger.cpp
new file mode 100644
index 00000000..046cd27c
--- /dev/null
+++ b/mp/src/game/server/env_player_surface_trigger.cpp
@@ -0,0 +1,135 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+
+#include "cbase.h"
+#include "decals.h"
+#include "env_player_surface_trigger.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+LINK_ENTITY_TO_CLASS( env_player_surface_trigger, CEnvPlayerSurfaceTrigger );
+
+BEGIN_DATADESC( CEnvPlayerSurfaceTrigger )
+	DEFINE_KEYFIELD( m_iTargetGameMaterial, FIELD_INTEGER, "gamematerial" ),
+	DEFINE_FIELD( m_iCurrentGameMaterial, FIELD_INTEGER ),
+	DEFINE_FIELD( m_bDisabled, FIELD_BOOLEAN ),
+
+	DEFINE_THINKFUNC( UpdateMaterialThink ),
+
+	// Inputs
+	DEFINE_INPUTFUNC( FIELD_VOID, "Disable", InputDisable ),
+	DEFINE_INPUTFUNC( FIELD_VOID, "Enable", InputEnable ),
+
+	// Outputs
+	DEFINE_OUTPUT(m_OnSurfaceChangedToTarget, "OnSurfaceChangedToTarget"),
+	DEFINE_OUTPUT(m_OnSurfaceChangedFromTarget, "OnSurfaceChangedFromTarget"),
+END_DATADESC()
+
+// Global list of surface triggers
+CUtlVector< CHandle<CEnvPlayerSurfaceTrigger> >	g_PlayerSurfaceTriggers;
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+CEnvPlayerSurfaceTrigger::~CEnvPlayerSurfaceTrigger( void )
+{
+	g_PlayerSurfaceTriggers.FindAndRemove( this );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CEnvPlayerSurfaceTrigger::Spawn( void )
+{
+	SetSolid( SOLID_NONE );
+	SetMoveType( MOVETYPE_NONE );
+
+	m_iCurrentGameMaterial = 0;
+	m_bDisabled = false;
+
+	g_PlayerSurfaceTriggers.AddToTail( this );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CEnvPlayerSurfaceTrigger::OnRestore( void )
+{
+	BaseClass::OnRestore();
+
+	g_PlayerSurfaceTriggers.AddToTail( this );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CEnvPlayerSurfaceTrigger::SetPlayerSurface( CBasePlayer *pPlayer, char gameMaterial )
+{
+	// Ignore players in the air (stops bunny hoppers escaping triggers)
+	if ( gameMaterial == 0 )
+		return;
+
+	// Loop through the surface triggers and tell them all about the change
+	int iCount = g_PlayerSurfaceTriggers.Count();
+	for ( int i = 0; i < iCount; i++ )
+	{
+		g_PlayerSurfaceTriggers[i]->PlayerSurfaceChanged( pPlayer, gameMaterial );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CEnvPlayerSurfaceTrigger::PlayerSurfaceChanged( CBasePlayer *pPlayer, char gameMaterial )
+{
+	if ( m_bDisabled )
+		return;
+
+	// Fire the output if we've changed, but only if it involves the target material
+	if ( gameMaterial != (char)m_iCurrentGameMaterial &&
+	     ( gameMaterial == m_iTargetGameMaterial || m_iCurrentGameMaterial == m_iTargetGameMaterial ) )
+	{
+		DevMsg( 2, "Player changed material to %d (was %d)\n", gameMaterial, m_iCurrentGameMaterial );
+
+		m_iCurrentGameMaterial = (int)gameMaterial;
+
+		SetThink( &CEnvPlayerSurfaceTrigger::UpdateMaterialThink );
+		SetNextThink( gpGlobals->curtime );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Think function to fire outputs. Done this way so that sv_alternate ticks
+//			doesn't allow multiple surface changes in the same tick to fire outputs.
+//-----------------------------------------------------------------------------
+void CEnvPlayerSurfaceTrigger::UpdateMaterialThink( void )
+{
+	if ( m_iCurrentGameMaterial == m_iTargetGameMaterial )
+	{
+		m_OnSurfaceChangedToTarget.FireOutput( NULL, this );
+	}
+	else 
+	{
+		m_OnSurfaceChangedFromTarget.FireOutput( NULL, this );
+	}
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CEnvPlayerSurfaceTrigger::InputDisable( inputdata_t &inputdata )
+{
+	m_bDisabled = true;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CEnvPlayerSurfaceTrigger::InputEnable( inputdata_t &inputdata )
+{
+	m_bDisabled = false;
+}
-- 
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