kicad/pcbnew/router/pns_walkaround.h

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/*
* KiRouter - a push-and-(sometimes-)shove PCB router
*
* Copyright (C) 2013 CERN
* Author: Tomasz Wlostowski <tomasz.wlostowski@cern.ch>
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*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation, either version 3 of the License, or (at your
* option) any later version.
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*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
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*
* You should have received a copy of the GNU General Public License along
* with this program. If not, see <http://www.gnu.or/licenses/>.
*/
#ifndef __PNS_WALKAROUND_H
#define __PNS_WALKAROUND_H
#include "pns_line.h"
#include "pns_node.h"
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class PNS_WALKAROUND
{
static const int DefaultIterationLimit = 50;
public:
PNS_WALKAROUND( PNS_NODE* aWorld ) :
m_world( aWorld ), m_iteration_limit( DefaultIterationLimit )
{
m_forceSingleDirection = false;
m_forceLongerPath = false;
m_cursorApproachMode = false;
};
~PNS_WALKAROUND() {};
enum WalkaroundStatus
{
IN_PROGRESS = 0,
DONE,
STUCK
};
void SetWorld( PNS_NODE* aNode )
{
m_world = aNode;
}
void SetIterationLimit( const int aIterLimit )
{
m_iteration_limit = aIterLimit;
}
void SetSolidsOnly( bool aSolidsOnly )
{
m_solids_only = aSolidsOnly;
}
void SetSingleDirection( bool aForceSingleDirection )
{
m_forceSingleDirection = aForceSingleDirection;
m_forceLongerPath = true;
}
void SetApproachCursor( bool aEnabled, const VECTOR2I& aPos )
{
m_cursorPos = aPos;
m_cursorApproachMode = aEnabled;
}
WalkaroundStatus Route( const PNS_LINE& aInitialPath, PNS_LINE& aWalkPath,
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bool aOptimize = true );
private:
void start( const PNS_LINE& aInitialPath );
WalkaroundStatus singleStep( PNS_LINE& aPath, bool aWindingDirection );
PNS_NODE::OptObstacle nearestObstacle( const PNS_LINE& aPath );
PNS_NODE* m_world;
int m_recursiveBlockageCount;
int m_iteration;
int m_iteration_limit;
bool m_solids_only;
bool m_forceSingleDirection, m_forceLongerPath;
bool m_cursorApproachMode;
VECTOR2I m_cursorPos;
PNS_NODE::OptObstacle m_currentObstacle[2];
bool m_recursiveCollision[2];
};
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#endif // __PNS_WALKAROUND_H