123 lines
4.2 KiB
C++
123 lines
4.2 KiB
C++
/*
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open source routing machine
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Copyright (C) Dennis Luxen, others 2010
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU AFFERO General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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or see http://www.gnu.org/licenses/agpl.txt.
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*/
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#ifndef TURNINSTRUCTIONS_H_
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#define TURNINSTRUCTIONS_H_
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#include <string>
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//This is a hack until c++0x is available enough to use scoped enums
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struct TurnInstructionsClass {
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const static short NoTurn = 0; //Give no instruction at all
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const static short GoStraight = 1; //Tell user to go straight!
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const static short TurnSlightRight = 2;
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const static short TurnRight = 3;
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const static short TurnSharpRight = 4;
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const static short UTurn = 5;
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const static short TurnSharpLeft = 6;
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const static short TurnLeft = 7;
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const static short TurnSlightLeft = 8;
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const static short ReachViaPoint = 9;
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const static short HeadOn = 10;
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const static short EnterRoundAbout = 11;
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const static short LeaveRoundAbout = 12;
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const static short StayOnRoundAbout = 13;
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const static short StartAtEndOfStreet = 14;
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const static short ReachedYourDestination = 15;
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const static short AccessRestrictionFlag = (1<<14);
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const static short InverseAccessRestrictionFlag = ~(1<<14);
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const static int AccessRestrictionPenalty = 1 << 15; //unrelated to the bit set in the restriction flag
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// std::string TurnStrings[16];
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// std::string Ordinals[12];
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//This is a hack until c++0x is available enough to use initializer lists.
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// TurnInstructionsClass(){
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// TurnStrings [0] = "";
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// TurnStrings [1] = "Continue";
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// TurnStrings [2] = "Turn slight right";
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// TurnStrings [3] = "Turn right";
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// TurnStrings [4] = "Turn sharp right";
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// TurnStrings [5] = "U-Turn";
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// TurnStrings [6] = "Turn sharp left";
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// TurnStrings [7] = "Turn left";
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// TurnStrings [8] = "Turn slight left";
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// TurnStrings [9] = "Reach via point";
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// TurnStrings[10] = "Head";
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// TurnStrings[11] = "Enter roundabout";
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// TurnStrings[12] = "Leave roundabout";
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// TurnStrings[13] = "Stay on roundabout";
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// TurnStrings[14] = "Start";
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// TurnStrings[15] = "You have reached your destination";
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//
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// Ordinals[0] = "zeroth";
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// Ordinals[1] = "first";
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// Ordinals[2] = "second";
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// Ordinals[3] = "third";
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// Ordinals[4] = "fourth";
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// Ordinals[5] = "fifth";
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// Ordinals[6] = "sixth";
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// Ordinals[7] = "seventh";
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// Ordinals[8] = "eighth";
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// Ordinals[9] = "nineth";
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// Ordinals[10] = "tenth";
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// Ordinals[11] = "one of the too many";
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// };
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static inline double GetTurnDirectionOfInstruction( const double angle ) {
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if(angle >= 23 && angle < 67) {
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return TurnSharpRight;
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}
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if (angle >= 67 && angle < 113) {
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return TurnRight;
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}
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if (angle >= 113 && angle < 158) {
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return TurnSlightRight;
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}
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if (angle >= 158 && angle < 202) {
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return GoStraight;
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}
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if (angle >= 202 && angle < 248) {
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return TurnSlightLeft;
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}
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if (angle >= 248 && angle < 292) {
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return TurnLeft;
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}
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if (angle >= 292 && angle < 336) {
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return TurnSharpLeft;
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}
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return UTurn;
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}
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static inline bool TurnIsNecessary ( const short turnInstruction ) {
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if(NoTurn == turnInstruction || StayOnRoundAbout == turnInstruction)
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return false;
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return true;
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}
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};
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static TurnInstructionsClass TurnInstructions;
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#endif /* TURNINSTRUCTIONS_H_ */
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