Add monster_xenocrab implementation.

dlls/headcrab.cpp

@@ -108,6 +108,7 @@ public:
 };
 
 LINK_ENTITY_TO_CLASS( monster_headcrab, CHeadCrab )
+LINK_ENTITY_TO_CLASS( monster_xenocrab, CHeadCrab )
 
 DEFINE_CUSTOM_SCHEDULES( CHeadCrab )
 {
@@ -186,6 +187,12 @@ void CHeadCrab::SetYawSpeed( void )
 {
 	int ys;
 
+	if( FClassnameIs( pev, "monster_xenocrab" ) )
+	{
+		pev->yaw_speed = RANDOM_LONG( 80, 90 );
+	}
+	else
+	{
 		switch( m_Activity )
 		{
 		case ACT_IDLE:	
@@ -206,6 +213,7 @@ void CHeadCrab::SetYawSpeed( void )
 			ys = 30;
 			break;
 		}
+	}
 
 	pev->yaw_speed = ys;
 }
@@ -281,6 +289,9 @@ void CHeadCrab::Spawn()
 {
 	Precache();
 
+	if( FClassnameIs( pev, "monster_xenocrab" ) )
+		SET_MODEL( ENT( pev ), "models/xenocrab.mdl" );
+	else
 		SET_MODEL( ENT( pev ), "models/headcrab.mdl" );
 	UTIL_SetSize( pev, Vector( -12, -12, 0 ), Vector( 12, 12, 24 ) );
 
@@ -309,6 +320,9 @@ void CHeadCrab::Precache()
 	PRECACHE_SOUND_ARRAY( pDeathSounds );
 	PRECACHE_SOUND_ARRAY( pBiteSounds );
 
+	if( FClassnameIs( pev, "monster_xenocrab" ) )
+		PRECACHE_MODEL( "models/xenocrab.mdl" );
+	else
 		PRECACHE_MODEL( "models/headcrab.mdl" );
 }