Strategy #31
			
				
			
		
		
		
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			@ -3,7 +3,9 @@ package ch.zhaw.pm2.racetrack.strategy;
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import ch.zhaw.pm2.racetrack.PositionVector;
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import ch.zhaw.pm2.racetrack.Track;
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import java.util.*;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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public class PathFinderMoveStrategy implements MoveStrategy{
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    private Track track;
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			@ -11,6 +13,7 @@ public class PathFinderMoveStrategy implements MoveStrategy{
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    private List<PositionVector.Direction> moveList;
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    private int pointer;
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    private List<PositionVector.Direction> allDirections;
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    private List<State> calculatedStates;
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    public PathFinderMoveStrategy(Track track, int carIndex) {
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			@ -23,49 +26,84 @@ public class PathFinderMoveStrategy implements MoveStrategy{
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    private void createMoveList(){
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        calculatedStates = new ArrayList<>();
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        PossibleMove finishedMove = null;
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        List<PossibleMove> possibleMoves= new ArrayList<>();
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        for(PositionVector.Direction direction : allDirections){
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            possibleMoves.add(new PossibleMove(null, direction));
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            PossibleMove newMove = new PossibleMove(null, direction);
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            if(! newMove.crashed()){
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                possibleMoves.add(newMove);
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            }
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        }
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        while(finishedMove == null){
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            List<PossibleMove> newMoves = new ArrayList<>();
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            for(PossibleMove previousMove : possibleMoves){
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                for(PositionVector.Direction direction : allDirections){
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                    PossibleMove newMove = new PossibleMove(previousMove, direction);
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                        if(! (newMove.crashed() || newMove.drivingLoop() || finishedMove != null)){
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                    State newState = new State(newMove.endPosition, newMove.endVelocity);
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                        if(! (newMove.crashed() || alreadyCalculated(newState) || finishedMove != null)){
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                            if(newMove.finished()){
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                                finishedMove = newMove;
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                                break;
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                            }
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                            } else {
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                                calculatedStates.add(newState);
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                                newMoves.add(newMove);
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                            }
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                        }
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                }
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            }
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            possibleMoves = newMoves;
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        }
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        moveList = finishedMove.directions;
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    }
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    private boolean alreadyCalculated(State state){
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        for(State calculatedState: calculatedStates){
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            if(state.equals(calculatedState)){
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                return true;
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            }
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        }
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        return false;
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    }
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    public class State{
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        PositionVector position;
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        PositionVector velocity;
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        public State(PositionVector position, PositionVector velocity){
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            this.position = position;
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            this.velocity = velocity;
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        }
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        public boolean equals(State compareState){
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            if(compareState.position.equals(position) && compareState.velocity.equals(velocity)){
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                return true;
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            } else{
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                return false;
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            }
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        }
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    }
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    public class PossibleMove {
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        List<PositionVector.Direction> directions;
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        List<PositionVector> positions;
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        PositionVector startPosition;
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        PositionVector endPosition;
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        PositionVector endVelocity;
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        public PossibleMove(PossibleMove previousMove, PositionVector.Direction nextDirection){
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            PositionVector startVelocity;
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            PositionVector startPosition;
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            positions = new ArrayList<>();
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            directions = new ArrayList<>();
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            if(previousMove != null){
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                positions.addAll(previousMove.positions);
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                directions.addAll(previousMove.directions);
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                startPosition = positions.get(positions.size()-1);
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                startPosition = previousMove.endPosition;
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                startVelocity = previousMove.endVelocity;
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            }
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            else {
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			@ -74,37 +112,31 @@ public class PathFinderMoveStrategy implements MoveStrategy{
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            }
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            directions.add(nextDirection);
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            endVelocity = new PositionVector(startVelocity.getX() + nextDirection.vector.getX(), startVelocity.getY() + nextDirection.vector.getY());
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            positions.add(new PositionVector(startPosition.getX() + endVelocity.getX(), startPosition.getY() + endVelocity.getY()));
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            endPosition = new PositionVector(startPosition.getX() + endVelocity.getX(), startPosition.getY() + endVelocity.getY());
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        }
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        public boolean finished(){
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            if(track.calculateNewWinPoints(positions.get(positions.size()-2), positions.get(positions.size()-1)) == 1){
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            if(track.calculateNewWinPoints(startPosition, endPosition) == 1){
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                return true;
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            }
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            else return false;
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            else{
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                return false;
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            }
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        }
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        public boolean crashed() {
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                for(PositionVector point : track.calculatePointsOnPath(positions.get(positions.size()-2), positions.get(positions.size()-1))) {
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            List<PositionVector> points = track.calculatePointsOnPath(startPosition, endPosition);
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            for(PositionVector point : points) {
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                if (track.willCrashAtPosition(carIndex, point)){
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                    return true;
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                }
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            }
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                if(track.calculateNewWinPoints(positions.get(positions.size()-2), positions.get(positions.size()-1)) == -1){
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            if(track.calculateNewWinPoints(startPosition, endPosition) == -1){
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                return true;
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            }
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            return false;
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        }
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        public boolean drivingLoop(){
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            for(int i = 0; i < positions.size()-1; i++){
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                if(positions.get(i).equals(positions.get(positions.size()-1))){
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                    return true;
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                }
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            }
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            return false;
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        }
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    }
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