started re-implementing using java

.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="src" path="src/main/java"/>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER">
+		<attributes>
+			<attribute name="module" value="true"/>
+		</attributes>
+	</classpathentry>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

src/main/java/de/srsoftware/web4rail/Plan.java

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+package de.srsoftware.web4rail;
+
+import java.util.HashMap;
+
+import de.srsoftware.web4rail.tiles.Tile;
+
+public class Plan {
+	private HashMap<Integer,HashMap<Integer,Tile>> tiles = new HashMap<Integer,HashMap<Integer,Tile>>();
+	
+	public Tile set(int x,int y,Tile tile) {
+		Tile old = null;
+		HashMap<Integer, Tile> column = tiles.get(x);
+		if (column == null) {
+			column = new HashMap<Integer,Tile>();
+			tiles.put(x, column);
+		}
+		old = column.get(y);
+		column.put(y,tile);
+		return old;
+	}
+	
+	public Tile get(int x, int y) {
+		HashMap<Integer, Tile> column = tiles.get(x);
+		return column == null ? null : column.get(y).position(x,y);
+	}
+}

src/main/java/de/srsoftware/web4rail/tiles/BlockH.java

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+package de.srsoftware.web4rail.tiles;
+
+public class BlockH extends StraightH{
+	private Contact north,center,south;
+}

src/main/java/de/srsoftware/web4rail/tiles/BlockV.java

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+package de.srsoftware.web4rail.tiles;
+
+public class BlockV extends StraightV{
+	Contact west,center,east;
+}

src/main/java/de/srsoftware/web4rail/tiles/Contact.java

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+package de.srsoftware.web4rail.tiles;
+
+public class Contact {
+
+}

src/main/java/de/srsoftware/web4rail/tiles/DiagES.java

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+package de.srsoftware.web4rail.tiles;
+
+public class DiagES extends Tile{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		switch (direction) {
+		case SOUTH:
+		case EAST:
+			return true;
+		default:
+			return false;
+		}
+	}	
+
+}

src/main/java/de/srsoftware/web4rail/tiles/DiagNE.java

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+package de.srsoftware.web4rail.tiles;
+
+public class DiagNE extends Tile{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		switch (direction) {
+		case NORTH:
+		case EAST:
+			return true;
+		default:
+			return false;
+		}
+	}	
+
+}

src/main/java/de/srsoftware/web4rail/tiles/DiagSW.java

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+package de.srsoftware.web4rail.tiles;
+
+public class DiagSW extends Tile{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		switch (direction) {
+		case SOUTH:
+		case WEST:
+			return true;
+		default:
+			return false;
+		}
+	}	
+
+}

src/main/java/de/srsoftware/web4rail/tiles/DiagWN.java

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+package de.srsoftware.web4rail.tiles;
+
+public class DiagWN extends Tile{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		switch (direction) {
+		case NORTH:
+		case WEST:
+			return true;
+		default:
+			return false;
+		}
+	}	
+
+}

src/main/java/de/srsoftware/web4rail/tiles/StraightH.java

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+package de.srsoftware.web4rail.tiles;
+
+public class StraightH extends StretchableTile{
+	@Override
+	public boolean hasConnector(Direction direction) {
+		switch (direction) {
+		case EAST:
+		case WEST:
+			return true;
+		default:
+			return false;
+		}
+	}	
+}

src/main/java/de/srsoftware/web4rail/tiles/StraightV.java

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+package de.srsoftware.web4rail.tiles;
+
+public class StraightV extends StretchableTile{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		switch (direction) {
+		case NORTH:
+		case SOUTH:
+			return true;
+		default:
+			return false;
+		}
+	}	
+}

src/main/java/de/srsoftware/web4rail/tiles/StretchableTile.java

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+package de.srsoftware.web4rail.tiles;
+
+public abstract class StretchableTile extends Tile {
+	public int length = 1;
+}

src/main/java/de/srsoftware/web4rail/tiles/Tile.java

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+package de.srsoftware.web4rail.tiles;
+
+import java.util.HashMap;
+
+public abstract class Tile {
+	
+	public enum Direction{
+		NORTH,SOUTH,EAST,WEST;
+	}
+	private class Position {
+		int x,y;
+	}
+	
+	Position position;
+	private HashMap<Direction,Tile> neighbours = new HashMap();
+	
+	public abstract boolean hasConnector(Direction direction);
+	
+	public boolean connect(Direction direction, Tile neighbour) {
+		if (hasConnector(direction)) {
+			switch (direction) {
+				case NORTH:
+					neighbour.neighbours.put(Direction.SOUTH, this);
+					neighbour.position.x = position.x;
+					neighbour.position.y = position.y-1;
+				case SOUTH:
+					neighbour.neighbours.put(Direction.NORTH, this);
+					neighbour.position.x = position.x;
+					neighbour.position.y = position.y+1;
+				case EAST:
+					neighbour.neighbours.put(Direction.WEST, this);
+					neighbour.position.x = position.x+1;
+					neighbour.position.y = position.y;
+				case WEST:
+					neighbour.neighbours.put(Direction.EAST, this);
+					neighbour.position.x = position.x-1;
+					neighbour.position.y = position.y;					
+			}
+			neighbours.put(direction, neighbour);
+			return true;
+		}
+		return false;
+	}
+	
+	public Tile neighbour(Direction direction) {
+		return neighbours.get(direction);
+	}
+
+	public Tile position(int x, int y) {
+		position.x = x;
+		position.y = y;
+		return this;
+	}
+	
+}

src/main/java/de/srsoftware/web4rail/tiles/Turnout.java

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+package de.srsoftware.web4rail.tiles;
+
+public abstract class Turnout extends Tile {
+
+	private boolean straight = true;
+	
+	public boolean toggle() {
+		straight = !straight;
+		return straight;
+	}
+}

src/main/java/de/srsoftware/web4rail/tiles/TurnoutEN.java

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+package de.srsoftware.web4rail.tiles;
+
+public class TurnoutEN extends Turnout{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		return direction != Direction.SOUTH;
+	}
+
+}

src/main/java/de/srsoftware/web4rail/tiles/TurnoutES.java

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+package de.srsoftware.web4rail.tiles;
+
+public class TurnoutES extends Turnout{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		return direction != Direction.NORTH;
+	}
+
+}

src/main/java/de/srsoftware/web4rail/tiles/TurnoutNE.java

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+package de.srsoftware.web4rail.tiles;
+
+public class TurnoutNE extends Turnout{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		return direction != Direction.WEST;
+	}
+	
+}

src/main/java/de/srsoftware/web4rail/tiles/TurnoutNW.java

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+package de.srsoftware.web4rail.tiles;
+
+public class TurnoutNW extends Turnout{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		return direction != Direction.EAST;
+	}
+
+}

src/main/java/de/srsoftware/web4rail/tiles/TurnoutSE.java

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+package de.srsoftware.web4rail.tiles;
+
+public class TurnoutSE extends Turnout{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		return direction != Direction.WEST;
+	}
+
+}

src/main/java/de/srsoftware/web4rail/tiles/TurnoutSW.java

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+package de.srsoftware.web4rail.tiles;
+
+public class TurnoutSW extends Turnout{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		return direction != Direction.EAST;
+	}
+	
+}

src/main/java/de/srsoftware/web4rail/tiles/TurnoutWN.java

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+package de.srsoftware.web4rail.tiles;
+
+public class TurnoutWN extends Turnout{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		return direction != Direction.SOUTH;
+	}
+
+}

src/main/java/de/srsoftware/web4rail/tiles/TurnoutWS.java

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+package de.srsoftware.web4rail.tiles;
+
+public class TurnoutWS extends Turnout{
+
+	@Override
+	public boolean hasConnector(Direction direction) {
+		return direction != Direction.NORTH;
+	}
+
+}