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https://gitlab.com/arnekeller/kit-programmieren-ws1920-final1.git
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@ -50,7 +50,9 @@ public abstract class Rail {
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* @param position point to connect to
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* @return whether rail could be successfully set
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*/
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public abstract boolean switchTo(Vector2D position);
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public boolean switchTo(Vector2D position) {
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return false;
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}
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/**
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* @return whether the rail is ready for trains running on it
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@ -51,11 +51,6 @@ public final class Track extends Rail {
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return rail != null && (rail.canConnectTo(start) || rail.canConnectTo(end));
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}
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@Override
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public boolean switchTo(Vector2D position) {
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return false;
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}
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@Override
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public boolean isReadyForTrains() {
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return true;
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@ -37,18 +37,4 @@ public enum CoachType {
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return null;
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}
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}
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@Override
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public String toString() {
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switch (this) {
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case PASSENGER:
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return "p";
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case FREIGHT:
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return "f";
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case SPECIAL:
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return "s";
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default:
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throw new IllegalStateException();
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}
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}
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}
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@ -36,6 +36,9 @@ public class AddSwitch extends Command {
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@Override
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public void apply(final ModelRailwaySimulation simulation) throws InvalidInputException {
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if (start == null) {
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throw new IllegalStateException("command not initialized");
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}
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int id = simulation.addSwitch(start, end1, end2);
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if (id == -1) {
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Terminal.printError("switch not connected to existing rails");
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@ -32,6 +32,9 @@ public class AddTrack extends Command {
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@Override
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public void apply(final ModelRailwaySimulation simulation) throws InvalidInputException {
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if (start == null) {
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throw new IllegalStateException("command not initialized");
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}
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int id = simulation.addTrack(start, end);
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if (id == -1) {
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Terminal.printError("id space exhausted");
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@ -33,6 +33,9 @@ public class AddTrain extends Command {
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@Override
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public void apply(final ModelRailwaySimulation simulation) throws InvalidInputException {
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if (rollingStockId == null) {
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throw new IllegalStateException("command not initialized");
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}
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simulation.addTrain(trainId, rollingStockId);
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RollingStock rollingStock = simulation.getRollingStock(rollingStockId);
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Terminal.printLine(String.format("%s %s added to train %d",
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@ -5,7 +5,7 @@ import edu.kit.informatik.ui.InvalidInputException;
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/**
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* Command that can be applied to a simulation.
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* Commands are implemented as separate classes (to avoid a god enum).
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* Commands are implemented as separate classes for easy modification and expansion.
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*
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* @author Arne Keller
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* @version 1.0
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@ -15,11 +15,12 @@ public abstract class Command {
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* Apply this command to a model railway simulation.
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* @param simulation simulation to use
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* @throws InvalidInputException on invalid user input
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* @throws IllegalStateException if the command is not yet initialized
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*/
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public abstract void apply(ModelRailwaySimulation simulation) throws InvalidInputException;
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public abstract void apply(ModelRailwaySimulation simulation) throws InvalidInputException, IllegalStateException;
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/**
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* Parse user input into the command object.
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* Parse user input into this command object.
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* @param input one line of user input
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* @throws InvalidInputException if user input is in any way invalid
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*/
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@ -103,10 +103,11 @@ public final class CommandFactory {
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* Name of the step command.
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*/
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public static final String STEP = "step";
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private static final Map<String, Supplier<Command>> COMMANDS = new HashMap<>();
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static {
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// initialize registered commands
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COMMANDS.put(ADD_TRACK, AddTrack::new);
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COMMANDS.put(ADD_SWITCH, AddSwitch::new);
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COMMANDS.put(DELETE_TRACK, DeleteTrack::new);
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@ -40,6 +40,9 @@ public class CreateCoach extends Command {
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@Override
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public void apply(final ModelRailwaySimulation simulation) throws InvalidInputException {
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if (type == null) {
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throw new IllegalStateException("command not initialized");
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}
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int id = simulation.createCoach(type, length, couplingFront, couplingBack);
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if (id == -1) {
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Terminal.printError("id space exhausted");
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@ -54,6 +54,9 @@ public class CreateEngine extends Command {
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@Override
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public void apply(final ModelRailwaySimulation simulation) throws InvalidInputException {
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if (type == null) {
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throw new IllegalStateException("command not initialized");
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}
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Engine engine;
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switch (type) {
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case ELECTRICAL:
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@ -46,6 +46,9 @@ public class CreateTrainSet extends Command {
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@Override
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public void apply(final ModelRailwaySimulation simulation) throws InvalidInputException {
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if (name == null) {
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throw new IllegalStateException("command not initialized");
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}
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TrainSet trainSet = new TrainSet(series, name, length, couplingFront, couplingBack);
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simulation.createTrainSet(trainSet);
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Terminal.printLine(trainSet.getIdentifier());
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@ -27,6 +27,9 @@ public class DeleteRollingStock extends Command {
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@Override
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public void apply(final ModelRailwaySimulation simulation) {
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if (id == null) {
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throw new IllegalStateException("command not initialized");
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}
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if (simulation.deleteRollingStock(id)) {
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Terminal.printLine("OK");
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} else {
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@ -37,6 +37,9 @@ public class PutTrain extends Command {
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@Override
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public void apply(final ModelRailwaySimulation simulation) throws InvalidInputException {
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if (point == null) {
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throw new IllegalStateException("command not initialized");
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}
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if (simulation.putTrain(id, point, direction)) {
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Terminal.printLine("OK");
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} else {
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@ -33,6 +33,9 @@ public class SetSwitch extends Command {
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@Override
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public void apply(final ModelRailwaySimulation simulation) {
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if (point == null) {
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throw new IllegalStateException("command not initialized");
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}
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if (simulation.setSwitch(id, point)) {
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Terminal.printLine("OK");
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} else {
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