143 lines
3.9 KiB
C++
143 lines
3.9 KiB
C++
//-----------------------------------------------------------------------------
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//
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// $Logfile:: /EF2/Code/DLLs/game/GoDirectlyToPoint.cpp $
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// $Revision:: 6 $
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// $Author:: Singlis $
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// $Date:: 9/26/03 2:36p $
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//
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// Copyright (C) 2001 by Ritual Entertainment, Inc.
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// All rights reserved.
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//
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// This source may not be distributed and/or modified without
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// expressly written permission by Ritual Entertainment, Inc.
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//
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//
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#include "_pch_cpp.h"
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#include "actor.h"
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#include "GoDirectlyToPoint.h"
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//------------------------- CLASS ------------------------------
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//
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// Name: GoDirectlyToPoint
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// Base Class: Class
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//
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// Description: Simple Steering class that moves directly to the
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// desired point without any regard for obstacle or world
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// avoidance.
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//
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// Method of Use: This is an appropiate steering method iff
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// some guarentee is made that the Actor will not collide with
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// anything while travelling to the target point.
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//
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//--------------------------------------------------------------
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CLASS_DECLARATION( Steering, GoDirectlyToPoint, NULL )
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{
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{ NULL, NULL }
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};
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//----------------------------------------------------------------
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// Name: GoDirectlyToPoint
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// Class: GoDirectlyToPoint
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//
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// Description: default constructor
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//
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// Parameters: None
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//
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// Returns: None
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//----------------------------------------------------------------
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GoDirectlyToPoint::GoDirectlyToPoint()
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{
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}
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//----------------------------------------------------------------
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// Name: Begin
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// Class: GoDirectlyToPoint
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//
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// Description: Initializes variables necessary to Evaluate
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//
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// Parameters:
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// Actor self - the actor moving to a point
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//
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// Returns: None
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//----------------------------------------------------------------
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void GoDirectlyToPoint::Begin(Actor &self)
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{
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}
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//----------------------------------------------------------------
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// Name: Evaluate
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// Class: GoDirectlyToPoint
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//
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// Description: attempts to move the Actor to the goal position
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//
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// Parameters:
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// Actor self - the actor following the path
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//
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// Returns: Steering::ReturnValue returns reason for failure
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//----------------------------------------------------------------
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const Steering::ReturnValue GoDirectlyToPoint::Evaluate( Actor &self )
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{
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ResetForces();
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if (AtDestination( self ))
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{
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return Steering::SUCCESS;
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}
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Vector newSteeringForce = self.movementSubsystem->SteerTowardsPoint
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(
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_destination,
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vec_zero,
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self.movementSubsystem->getMoveDir(),
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self.movementSubsystem->getMoveSpeed()
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);
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self.movementSubsystem->Accelerate( newSteeringForce );
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return Steering::EVALUATING ;
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}
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//----------------------------------------------------------------
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// Name: ShowInfo
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// Class: GoDirectlyToPoint
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//
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// Description: prints out useful debug info for the class
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//
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// Parameters:
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// Actor self - the actor following the path
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//
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// Returns: None
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//----------------------------------------------------------------
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void GoDirectlyToPoint::ShowInfo( Actor &self )
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{
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Steering::ShowInfo( self );
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gi.Printf( "\n destination : ( %f, %f, %f ) \n", _destination.x, _destination.y, _destination.z );
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}
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//----------------------------------------------------------------
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// Name: AtDestination
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// Class: GoDirectlyToPoint
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//
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// Description: test that determines if the Actor is close to
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// the goal
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//
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// Parameters:
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// Actor self - the actor following the path
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//
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// Returns: bool that is true if the Actor is at the goal
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//----------------------------------------------------------------
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const bool GoDirectlyToPoint::AtDestination(const Actor &self) const
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{
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//Check if we are in range
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if ((Vector::DistanceXY( _destination, self.origin ) ) <= _radius )
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{
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return true;
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}
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return false;
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}
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