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game/server/NextBot/Behavior/BehaviorBackUp.h

@@ -0,0 +1,118 @@
+// BehaviorBackUp.h
+// Back up for a short duration
+// Author: Michael Booth, March 2007
+//========= Copyright Valve Corporation, All rights reserved. ============//
+
+#ifndef _BEHAVIOR_BACK_UP_H_
+#define _BEHAVIOR_BACK_UP_H_
+
+
+//----------------------------------------------------------------------------------------------
+/**
+ * Move backwards for a short duration away from a given position.  
+ * Useful to dislodge ourselves if we get stuck while following our path.
+ */
+template < typename Actor >
+class BehaviorBackUp : public Action< Actor >
+{
+public:
+	BehaviorBackUp( const Vector &avoidPos );
+
+	virtual ActionResult< Actor > OnStart( Actor *me, Action< Actor > *priorAction );
+	virtual ActionResult< Actor > Update( Actor *me, float interval );
+
+	virtual EventDesiredResult< Actor > OnStuck( Actor *me );
+
+	virtual const char *GetName( void ) const	{ return "BehaviorBackUp"; }
+
+private:
+	CountdownTimer m_giveUpTimer;
+	CountdownTimer m_backupTimer;
+	CountdownTimer m_jumpTimer;
+	Vector m_way;
+	Vector m_avoidPos;
+};
+
+
+//----------------------------------------------------------------------------------------------
+template < typename Actor >
+inline BehaviorBackUp< Actor >::BehaviorBackUp( const Vector &avoidPos )
+{
+	m_avoidPos = avoidPos;
+}
+
+
+//----------------------------------------------------------------------------------------------
+template < typename Actor >
+inline ActionResult< Actor > BehaviorBackUp< Actor >::OnStart( Actor *me, Action< Actor > *priorAction )
+{
+	ILocomotion *mover = me->GetLocomotionInterface();
+
+	// don't back off if we're on a ladder
+	if ( mover && mover->IsUsingLadder() )
+	{
+		return Done();
+	}
+	
+	float backupTime = RandomFloat( 0.3f, 0.5f );
+	
+	m_backupTimer.Start( backupTime );
+	m_jumpTimer.Start( 1.5f * backupTime );
+	m_giveUpTimer.Start( 2.5f * backupTime );
+	
+	m_way = me->GetPosition() - m_avoidPos;
+	m_way.NormalizeInPlace();
+	
+	return Continue();
+}
+
+
+//----------------------------------------------------------------------------------------------
+template < typename Actor >
+inline ActionResult< Actor > BehaviorBackUp< Actor >::Update( Actor *me, float interval )
+{
+	if ( m_giveUpTimer.IsElapsed() )
+	{
+		return Done();
+	}
+
+// 	if ( m_jumpTimer.HasStarted() && m_jumpTimer.IsElapsed() )
+// 	{
+// 		me->GetLocomotionInterface()->Jump();
+// 		m_jumpTimer.Invalidate();
+// 	}
+
+	ILocomotion *mover = me->GetLocomotionInterface();
+	if ( mover )
+	{
+		Vector goal;
+
+		if ( m_backupTimer.IsElapsed() )
+		{
+			// move towards bad spot
+			goal = m_avoidPos; // me->GetPosition() - 100.0f * m_way;
+		}
+		else
+		{
+			// move away from bad spot
+			goal = me->GetPosition() + 100.0f * m_way;
+		}
+
+		mover->Approach( goal );
+	}
+	
+	return Continue();
+}
+
+
+//----------------------------------------------------------------------------------------------
+template < typename Actor >
+inline EventDesiredResult< Actor > BehaviorBackUp< Actor >::OnStuck( Actor *me )
+{
+	return TryToSustain( RESULT_IMPORTANT, "Stuck while trying to back up" );
+}
+
+
+
+#endif // _BEHAVIOR_BACK_UP_H_
+

game/server/NextBot/Behavior/BehaviorMoveTo.h

@@ -0,0 +1,126 @@
+// BehaviorMoveTo.h
+// Move to a potentially far away position
+// Author: Michael Booth, June 2007
+//========= Copyright Valve Corporation, All rights reserved. ============//
+
+#ifndef _BEHAVIOR_MOVE_TO_H_
+#define _BEHAVIOR_MOVE_TO_H_
+
+
+//----------------------------------------------------------------------------------------------
+/**
+ * Move to a potentially far away position, using path planning.
+ */
+template < typename Actor, typename PathCost >
+class BehaviorMoveTo : public Action< Actor >
+{
+public:
+	BehaviorMoveTo( const Vector &goal, Action< Actor > *successAction = NULL, Action< Actor > *failAction = NULL );
+
+	virtual ActionResult< Actor > OnStart( Actor *me, Action< Actor > *priorAction );
+	virtual ActionResult< Actor > Update( Actor *me, float interval );
+
+	virtual EventDesiredResult< Actor > OnMoveToSuccess( Actor *me, const Path *path );
+	virtual EventDesiredResult< Actor > OnMoveToFailure( Actor *me, const Path *path, MoveToFailureType reason );
+
+	virtual bool ComputePath( Actor *me, const Vector &goal, PathFollower *path );
+
+	virtual const char *GetName( void ) const	{ return "BehaviorMoveTo"; }
+
+private:
+	Vector m_goal;
+	PathFollower m_path;
+	Action< Actor > *m_successAction;
+	Action< Actor > *m_failAction;
+};
+
+
+//----------------------------------------------------------------------------------------------
+template < typename Actor, typename PathCost >
+inline BehaviorMoveTo< Actor, PathCost >::BehaviorMoveTo( const Vector &goal, Action< Actor > *successAction, Action< Actor > *failAction )
+{
+	m_goal = goal;
+	m_path.Invalidate();
+	m_successAction = successAction;
+	m_failAction = failAction;
+}
+
+
+//----------------------------------------------------------------------------------------------
+template < typename Actor, typename PathCost >
+inline bool BehaviorMoveTo< Actor, PathCost >::ComputePath( Actor *me, const Vector &goal, PathFollower *path )
+{
+	PathCost cost( me );
+	return path->Compute( me, goal, cost );
+}
+
+
+//----------------------------------------------------------------------------------------------
+template < typename Actor, typename PathCost >
+inline ActionResult< Actor > BehaviorMoveTo< Actor, PathCost >::OnStart( Actor *me, Action< Actor > *priorAction )
+{
+	if ( !this->ComputePath( me, m_goal, &m_path ) )
+	{
+		if ( m_failAction )
+		{
+			return this->ChangeTo( m_failAction, "No path to goal" );
+		}
+
+		return this->Done( "No path to goal" );
+	}
+
+	return this->Continue();
+}
+
+
+//----------------------------------------------------------------------------------------------
+template < typename Actor, typename PathCost >
+inline ActionResult< Actor > BehaviorMoveTo< Actor, PathCost >::Update( Actor *me, float interval )
+{
+	// if path became invalid during last tick for any reason, we're done
+	if ( !m_path.IsValid() )
+	{
+		if ( m_failAction )
+		{
+			return this->ChangeTo( m_failAction, "Path is invalid" );
+		}
+
+		return this->Done( "Path is invalid" );
+	}
+
+	// move along path - success/fail event handlers will exit behavior when goal is reached
+	m_path.Update( me );
+
+	return this->Continue();
+}
+
+
+//----------------------------------------------------------------------------------------------
+template < typename Actor, typename PathCost >
+inline EventDesiredResult< Actor > BehaviorMoveTo< Actor, PathCost >::OnMoveToSuccess( Actor *me, const Path *path )
+{
+	if ( m_successAction )
+	{
+		return this->TryChangeTo( m_successAction, RESULT_CRITICAL, "OnMoveToSuccess" );
+	}
+
+	return this->TryDone( RESULT_CRITICAL, "OnMoveToSuccess" );
+}
+
+
+//----------------------------------------------------------------------------------------------
+template < typename Actor, typename PathCost >
+inline EventDesiredResult< Actor > BehaviorMoveTo< Actor, PathCost >::OnMoveToFailure( Actor *me, const Path *path, MoveToFailureType reason )
+{
+	if ( m_failAction )
+	{
+		return this->TryChangeTo( m_failAction, RESULT_CRITICAL, "OnMoveToFailure" );
+	}
+
+	return this->TryDone( RESULT_CRITICAL, "OnMoveToFailure" );
+}
+
+
+
+#endif // _BEHAVIOR_MOVE_TO_H_
+