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game/server/cstrike/cs_nav.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//
+//=============================================================================//
+// nav.h
+// Data structures and constants for the Navigation Mesh system
+// Author: Michael S. Booth (mike@turtlerockstudios.com), January 2003
+
+#ifndef _CS_NAV_H_
+#define _CS_NAV_H_
+
+#include "nav.h"
+
+/**
+ * Below are several constants used by the navigation system.
+ * @todo Move these into TheNavMesh singleton.
+ */
+const float BotRadius = 10.0f;				///< circular extent that contains bot
+
+class CNavArea;
+class CSNavNode;
+
+#if 0
+//--------------------------------------------------------------------------------------------------------------
+/**
+ * Return true if given entity can be ignored when moving
+ */
+#define WALK_THRU_DOORS				0x01
+#define WALK_THRU_BREAKABLES		0x02
+#define WALK_THRU_TOGGLE_BRUSHES	0x04
+#define WALK_THRU_EVERYTHING		(WALK_THRU_DOORS | WALK_THRU_BREAKABLES | WALK_THRU_TOGGLE_BRUSHES)
+inline bool IsEntityWalkable( CBaseEntity *entity, unsigned int flags )
+{
+	if (FClassnameIs( entity, "worldspawn" ))
+		return false;
+
+	if (FClassnameIs( entity, "player" ))
+		return false;
+
+	// if we hit a door, assume its walkable because it will open when we touch it
+	if (FClassnameIs( entity, "prop_door*" ) || FClassnameIs( entity, "func_door*" ))
+		return (flags & WALK_THRU_DOORS) ? true : false;
+
+	// if we hit a clip brush, ignore it if it is not BRUSHSOLID_ALWAYS
+	if (FClassnameIs( entity, "func_brush" ))
+	{
+		CFuncBrush *brush = (CFuncBrush *)entity;
+		switch ( brush->m_iSolidity )
+		{
+		case CFuncBrush::BRUSHSOLID_ALWAYS:
+			return false;
+		case CFuncBrush::BRUSHSOLID_NEVER:
+			return true;
+		case CFuncBrush::BRUSHSOLID_TOGGLE:
+			return (flags & WALK_THRU_TOGGLE_BRUSHES) ? true : false;
+		}
+	}
+
+	// if we hit a breakable object, assume its walkable because we will shoot it when we touch it
+	if (FClassnameIs( entity, "func_breakable" ) && entity->GetHealth() && entity->m_takedamage == DAMAGE_YES)
+		return (flags & WALK_THRU_BREAKABLES) ? true : false;
+
+	if (FClassnameIs( entity, "func_breakable_surf" ) && entity->m_takedamage == DAMAGE_YES)
+		return (flags & WALK_THRU_BREAKABLES) ? true : false;
+
+	return false;
+}
+#endif
+
+#endif // _CS_NAV_H_