1

game/server/tf/entity_bird.cpp

@@ -0,0 +1,179 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+//=============================================================================//
+#include "cbase.h"
+#include "tf_gamerules.h"
+#include "entity_bird.h"
+#include "KeyValues.h"
+#include "filesystem.h"
+#include "tf_fx.h"
+
+LINK_ENTITY_TO_CLASS( entity_bird, CEntityBird );
+
+#define ENTITYBIRD_MODEL	"models/props_forest/bird.mdl"
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CEntityBird::Spawn( void )
+{
+	Precache();
+	BaseClass::Spawn();
+
+	SetMoveType( MOVETYPE_NONE );
+	SetSolid( SOLID_BBOX );
+	SetModel( ENTITYBIRD_MODEL );
+	SetSize( -Vector(8,8,0), Vector(8,8,16) );
+	SetSequence(0);
+	m_takedamage = DAMAGE_YES;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CEntityBird::Precache( void )
+{
+	BaseClass::Precache();
+
+	// We deliberately allow late precaches here. It'll cause a hitch, but it'll ensure
+	// we don't load the model on any map that doesn't have birds, and we'll make sure
+	// we don't accidentally keep loading it after the birds are supposed to go away.
+	
+	bool bAllowPrecache = CBaseEntity::IsPrecacheAllowed();
+	CBaseEntity::SetAllowPrecache( true );
+	PrecacheModel( ENTITYBIRD_MODEL );
+	CBaseEntity::SetAllowPrecache( bAllowPrecache );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CEntityBird::Touch( CBaseEntity *pOther )
+{
+	BaseClass::Touch( pOther );
+
+	// If we're touched by anything, we pop!
+	Explode();
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+int CEntityBird::OnTakeDamage( const CTakeDamageInfo &info )
+{
+	Explode();
+	return 1;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void CEntityBird::Explode( void )
+{
+	Vector vecOrigin = WorldSpaceCenter();
+	CPVSFilter filter( vecOrigin );
+	TE_TFExplosion( filter, 0.0f, vecOrigin, Vector(0,0,1), TF_WEAPON_NONE, 0 );
+
+	UTIL_Remove( this );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Spawn random birds at locations on certain maps.
+//-----------------------------------------------------------------------------
+void CEntityBird::SpawnRandomBirds( void )
+{
+	const char *pszMapName = STRING( gpGlobals->mapname );
+	if ( !pszMapName || !pszMapName[0] )
+		return;
+
+	KeyValues *pFileKV = new KeyValues( "birds" );
+	if ( !pFileKV->LoadFromFile( g_pFullFileSystem, "scripts/birds.txt", "MOD" ) )
+		return;
+
+	// Build a list of birds in the map already, and make sure we don't spawn any on those spots again
+	CUtlVector<Vector>	vecExistingBirds;
+	CBaseEntity *pBird = gEntList.FindEntityByClassname( NULL, "entity_bird" );
+	while( pBird ) 
+	{
+		vecExistingBirds.AddToTail( pBird->GetAbsOrigin() );
+		pBird = gEntList.FindEntityByClassname( pBird, "entity_bird" ); 
+	}
+
+	// See if we have an entry for this map
+	KeyValues *pMapKV = pFileKV->FindKey( pszMapName );
+	if ( pMapKV )
+	{
+		CUtlVector<Vector> vecLocations;
+	
+		KeyValues *pkvLoc = pMapKV->GetFirstSubKey();
+		while ( pkvLoc )
+		{
+			const char *pszLocation = pkvLoc->GetString();
+			int iIdx = vecLocations.AddToTail();
+			UTIL_StringToVector( vecLocations[iIdx].Base(), pszLocation );
+			pkvLoc = pkvLoc->GetNextKey();
+		}
+
+		if ( vecLocations.Count() )
+		{
+			//int iLocation = RandomInt(0,vecLocations.Count()-1);
+			for ( int i = 0; i < vecLocations.Count(); i++ )
+			{
+				bool bExists = false;
+				// Make sure there isn't a bird here already
+				FOR_EACH_VEC( vecExistingBirds, iBird )
+				{
+					if ( vecLocations[i].DistToSqr(vecExistingBirds[iBird]) < (32*32) )
+					{
+						bExists = true;
+						break;
+					}
+				}
+
+				if ( !bExists )
+				{
+					CBaseEntity::Create( "entity_bird", vecLocations[i], QAngle(0,RandomFloat(0,360),0) );
+				}
+			}
+		}
+	}
+
+	pFileKV->deleteThis();
+}
+
+
+//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+#define ENTITY_FLYING_BIRD_SPEED_MIN		200
+#define ENTITY_FLYING_BIRD_SPEED_MAX		500
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void SpawnClientsideFlyingBird( Vector &vecSpawn )
+{
+	float flyAngle = RandomFloat( -M_PI, M_PI );
+	float flyAngleRate = RandomFloat( -1.5f, 1.5f );
+	float accelZ = RandomFloat( 0.5f, 2.0f );
+	float speed = RandomFloat( ENTITY_FLYING_BIRD_SPEED_MIN, ENTITY_FLYING_BIRD_SPEED_MAX );
+	float flGlideTime = RandomFloat( 0.25f, 1.0f );
+
+	bool bAllowPrecache = CBaseEntity::IsPrecacheAllowed();
+	CBaseEntity::SetAllowPrecache( true );
+	CBaseEntity::PrecacheModel( "models/props_forest/dove.mdl" );
+	CBaseEntity::SetAllowPrecache( bAllowPrecache );
+
+	CPVSFilter filter( vecSpawn );
+	UserMessageBegin( filter, "SpawnFlyingBird" );
+		WRITE_VEC3COORD( vecSpawn );
+		WRITE_FLOAT( flyAngle );
+		WRITE_FLOAT( flyAngleRate );
+		WRITE_FLOAT( accelZ );
+		WRITE_FLOAT( speed );
+		WRITE_FLOAT( flGlideTime );
+	MessageEnd();
+}
+
+