arnekeller/kit-programmieren-ws1920-final1
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This commit is contained in:
Arne Keller 2020-02-17 10:39:26 +01:00
parent 48b4562bde
commit cdc71c8253
5 changed files with 111 additions and 26 deletions
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11
src/edu/kit/informatik/model/Coach.java
View File

@ -9,6 +9,9 @@ import edu.kit.informatik.ui.CoachType;
* @version 1.0
*/
public class Coach extends RollingStock {
/**
* ASCII art representation of a passenger coach.
*/
private static final String[] PASSENGER_TEXT = new String[] {
"____________________",
"| ___ ___ ___ ___ |",
@ -17,6 +20,10 @@ public class Coach extends RollingStock {
"|__________________|",
" (O) (O) "
};
/**
* ASCII art representation of a freight coach.
*/
private static final String[] FREIGHT_TEXT = new String[] {
"| |",
"| |",
@ -24,6 +31,10 @@ public class Coach extends RollingStock {
"|__________________|",
" (O) (O) "
};
/**
* ASCII art represantation of a special coach.
*/
private static final String[] SPECIAL_TEXT = new String[] {
" ____",
"/--------------| |",

3
src/edu/kit/informatik/model/DieselEngine.java
View File

@ -7,6 +7,9 @@ package edu.kit.informatik.model;
* @version 1.0
*/
public class DieselEngine extends Engine {
/**
* ASCII art representation of a diesel engine.
*/
private static final String[] DIESEL_ENGINE_TEXT = new String[] {
" _____________|____ ",
" /_| ____________ |_\\ ",

3
src/edu/kit/informatik/model/ElectricalEngine.java
View File

@ -7,6 +7,9 @@ package edu.kit.informatik.model;
* @version 1.0
*/
public class ElectricalEngine extends Engine {
/**
* ASCII art of an electrical engine.
*/
private static final String[] ELECTRICAL_ENGINE_TEXT = new String[] {
" ___ ",
" \\ ",

117
src/edu/kit/informatik/model/ModelRailwaySimulation.java
View File

@ -13,11 +13,32 @@ import java.util.Map;
import java.util.Set;
import java.util.stream.Collectors;
/**
* Model railway simulation. Can simulate trains on a railway network.
*
* @author Arne Keller
* @version 1.0
*/
public class ModelRailwaySimulation {
/**
* Railway network used in this simulation.
*/
private final RailwayNetwork railNetwork = new RailwayNetwork();
/**
* List of engines used in the simulation.
*/
private final List<Engine> engines = new ArrayList<>();
/**
* List of train sets used in the simulation.
*/
private final List<TrainSet> trainSets = new ArrayList<>();
/**
* List of coaches used in the simulation.
*/
private final List<Coach> coaches = new ArrayList<>();
/**
* List of trains simulated.
*/
private final List<Train> trains = new ArrayList<>();
/**
@ -93,6 +114,9 @@ public class ModelRailwaySimulation {
return true;
}
/**
* Print a list of engines added to the simulation.
*/
public void printEngines() {
if (engines.isEmpty()) {
Terminal.printLine("No engine exists");
@ -130,6 +154,10 @@ public class ModelRailwaySimulation {
return id;
}
/**
* Calculate the next coach identifier.
* @return the next coach identifier, or -1 if none available
*/
private int getNextCoachIdentifier() {
int id = 1;
for (Coach coach : coaches) {
@ -140,6 +168,9 @@ public class ModelRailwaySimulation {
return id;
}
/**
* Print a list of coaches added to the simulation.
*/
public void printCoaches() {
if (coaches.isEmpty()) {
Terminal.printLine("No coach exists");
@ -180,6 +211,9 @@ public class ModelRailwaySimulation {
return true;
}
/**
* Print a list of train sets added to the simulation.
*/
public void printTrainSets() {
if (trainSets.isEmpty()) {
Terminal.printLine("No train-set exists");
@ -202,23 +236,24 @@ public class ModelRailwaySimulation {
* @param id identifier of the rolling stock to remove
* @return whether the rolling was successfully removed
*/
public boolean deleteRollingStock(String id) {
public boolean deleteRollingStock(final String id) {
RollingStock rollingStock = getRollingStock(id);
if (rollingStock == null) {
if (rollingStock == null || trains.stream().anyMatch(train -> train.contains(rollingStock))) {
// can not delete rolling stock in use
return false;
}
for (Train train : trains) {
if (train.contains(rollingStock)) {
return false;
}
}
engines.remove(rollingStock);
trainSets.remove(rollingStock);
coaches.remove(rollingStock);
return true;
}
public RollingStock getRollingStock(String id) {
/**
* Find a rolling stock by identifier.
* @param id identifier of the rolling stock to find
* @return the specified rolling stock, or null if not found
*/
private RollingStock getRollingStock(final String id) {
if (id.matches("W\\+?\\d+")) {
int coachId = Integer.parseInt(id.substring(1));
for (Coach coach : coaches) {
@ -241,6 +276,12 @@ public class ModelRailwaySimulation {
return null;
}
/**
* Create a new train or add rolling stock to an existing train.
* @param trainId identifier of the train
* @param rollingStockId identifier of the rolling stock
* @return whether the operation was successful
*/
public boolean addTrain(int trainId, String rollingStockId) {
RollingStock rollingStock = getRollingStock(rollingStockId);
if (rollingStock == null) {
@ -267,6 +308,10 @@ public class ModelRailwaySimulation {
return true;
}
/**
* Calculate the next train identifier.
* @return the next train identfier, or -1 if none available
*/
private int getNextTrainIdentifier() {
int id = 1;
for (Train train : trains) {
@ -277,6 +322,11 @@ public class ModelRailwaySimulation {
return id;
}
/**
* Delete a train.
* @param id identifier of the train
* @return whether the train could be deleted
*/
public boolean deleteTrain(int id) {
Train train = getTrain(id);
if (train != null) {
@ -286,23 +336,24 @@ public class ModelRailwaySimulation {
return false;
}
/**
* Find a train by identifier.
* @param id identifier of the train to find.
* @return the specified train, or null if not found
*/
private Train getTrain(int id) {
for (Train train : trains) {
if (train.getIdentifier() == id) {
return train;
}
}
return null;
return trains.stream().filter((train) -> train.getIdentifier() == id).findFirst().orElse(null);
}
/**
* Print a list of trains in the simulation.
*/
public void printTrains() {
if (trains.isEmpty()) {
Terminal.printLine("No train exists"); // TODO not in fucking spec
return;
}
for (Train train : trains) {
Terminal.printLine(train);
}
trains.forEach(Terminal::printLine);
}
/**
@ -337,7 +388,7 @@ public class ModelRailwaySimulation {
if (placed) {
// now, check for collisions
List<HashSet<Train>> collisions = getStaticCollisions(false);
List<HashSet<Train>> collisions = getStaticCollisions();
if (!collisions.isEmpty()) {
// remove if colliding
train.removeFromRails();
@ -350,7 +401,11 @@ public class ModelRailwaySimulation {
}
}
private ArrayList<HashSet<Train>> getStaticCollisions(boolean removeTrains) {
/**
* Get collisions of trains currently placed.
* @return list of collisions (never null, sometimes empty)
*/
private ArrayList<HashSet<Train>> getStaticCollisions() {
if (trains.isEmpty()) {
return new ArrayList<>();
}
@ -385,16 +440,13 @@ public class ModelRailwaySimulation {
collisions.add(collision);
}
}
if (removeTrains) {
for (HashSet<Train> collision : collisions) {
for (Train t : collision) {
t.removeFromRails();
}
}
}
return collisions;
}
/**
* Get collisions of moving the trains one step forward.
* @return list of collisions (never null, sometimes empty)
*/
private ArrayList<Set<Train>> getCollisionsOfOneStep() {
ArrayList<Set<Train>> collisions = new ArrayList<>();
Map<Train, Set<Rail>> occupiedRails = new HashMap<>();
@ -461,6 +513,10 @@ public class ModelRailwaySimulation {
return collisions;
}
/**
* Get collisions of moving the trains one step backward.
* @return list of collisions (never null, sometimes empty)
*/
private ArrayList<Set<Train>> getCollisionsOfOneReverseStep() {
ArrayList<Set<Train>> collisions = new ArrayList<>();
Map<Train, Set<Rail>> occupiedRails = new HashMap<>();
@ -524,6 +580,10 @@ public class ModelRailwaySimulation {
return collisions;
}
/**
* Move the trains in this simulation, printing their new positions and any collisions.
* @param speed amount of steps to move the trains
*/
public void step(final short speed) {
if (!railNetwork.isReadyForTrains()) {
Terminal.printError("rail tracks/switches not set up");
@ -535,15 +595,19 @@ public class ModelRailwaySimulation {
}
List<Set<Train>> collisions = new ArrayList<>();
// first, handle positive speed (forward)
for (int i = 0; i < speed; i++) {
List<Set<Train>> newCollisions = getCollisionsOfOneStep();
collisions.addAll(newCollisions);
}
// then, handle negative speed (backward)
for (int i = 0; i > speed; i--) {
List<Set<Train>> newCollisions = getCollisionsOfOneReverseStep();
collisions.addAll(newCollisions);
}
// (only one of the loops above actually runs)
train: for (Train train : trains) {
// print collision
for (Set<Train> collisionSet : collisions) {
if (!collisionSet.contains(train)) {
continue;
@ -557,6 +621,7 @@ public class ModelRailwaySimulation {
}
continue train;
}
// or position, if not in collision
if (train.isPlaced()) {
Terminal.printLine(String.format("Train %d at %s", train.getIdentifier(), train.getFrontPosition()));
}

3
src/edu/kit/informatik/ui/CommandLine.java
View File

@ -12,6 +12,9 @@ import edu.kit.informatik.ui.command.CommandFactory;
* @version 1.0
*/
public class CommandLine {
/**
* Command used to exit the simulation and terminate the program.
*/
private static final String EXIT = "exit";
/**