arnekeller/kit-programmieren-ws1920-final1
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Arne Keller 2020-02-19 18:30:40 +01:00
parent b17e8db22f
commit e8a2a28aa8
3 changed files with 12 additions and 13 deletions
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12
src/edu/kit/informatik/model/RailwayNetwork.java
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@ -34,8 +34,8 @@ public class RailwayNetwork {
if (start.distanceTo(end) == 0) {
throw new InvalidInputException("track has length zero");
}
long startPossibleConnections = rails.values().stream().filter((rail) -> rail.canConnectTo(start)).count();
long endPossibleConnections = rails.values().stream().filter((rail) -> rail.canConnectTo(end)).count();
long startPossibleConnections = rails.values().stream().filter(rail -> rail.canConnectTo(start)).count();
long endPossibleConnections = rails.values().stream().filter(rail -> rail.canConnectTo(end)).count();
if (startPossibleConnections == 2 || endPossibleConnections == 2) {
throw new InvalidInputException("track would connect to two other rails");
}
@ -76,9 +76,9 @@ public class RailwayNetwork {
rails.put(1, newSwitch);
return newSwitch.getIdentifier();
} else {
long startPossibleConnections = rails.values().stream().filter((rail) -> rail.canConnectTo(start)).count();
long end1PossibleConnections = rails.values().stream().filter((rail) -> rail.canConnectTo(end1)).count();
long end2PossibleConnections = rails.values().stream().filter((rail) -> rail.canConnectTo(end2)).count();
long startPossibleConnections = rails.values().stream().filter(rail -> rail.canConnectTo(start)).count();
long end1PossibleConnections = rails.values().stream().filter(rail -> rail.canConnectTo(end1)).count();
long end2PossibleConnections = rails.values().stream().filter(rail -> rail.canConnectTo(end2)).count();
if (startPossibleConnections == 2 || end1PossibleConnections == 2 || end2PossibleConnections == 2) {
throw new InvalidInputException("switch endpoint would connect to two other rails");
}
@ -250,7 +250,7 @@ public class RailwayNetwork {
* @return the rail(s) that touch this position
*/
public Rail[] findTouchingRails(final Vector2D position) {
return rails.values().stream().filter((rail) -> rail.canConnectTo(position)).toArray(Rail[]::new);
return rails.values().stream().filter(rail -> rail.canConnectTo(position)).toArray(Rail[]::new);
}
/**

2
src/edu/kit/informatik/model/Track.java
View File

@ -48,7 +48,7 @@ public final class Track extends Rail {
@Override
public boolean canConnectToRail(Rail rail) {
return rail != null && rail.canConnectTo(start) || rail.canConnectTo(end);
return rail != null && (rail.canConnectTo(start) || rail.canConnectTo(end));
}
@Override

11
src/edu/kit/informatik/model/Train.java
View File

@ -143,7 +143,7 @@ public final class Train {
*/
public boolean placeOn(final RailwayNetwork railNetwork, final Vector2D position, final Vector2D rawDirection)
throws InvalidInputException {
Vector2D direction = rawDirection.normalized();
Vector2D positioningDirection = rawDirection.normalized().negated();
long length = getLength();
if (length > Integer.MAX_VALUE) {
// TODO: implement this case
@ -152,7 +152,6 @@ public final class Train {
LinkedList<Vector2D> positions = new LinkedList<>();
positions.addLast(position);
Vector2D positioningDirection = direction.negated();
Vector2D rollingStockPosition = position;
if (length > 10000) {
return false; // TODO: remove!
@ -167,12 +166,12 @@ public final class Train {
}
positions.addLast(rollingStockPosition);
}
Set<Rail> occupiedRails = new HashSet<>();
Set<Rail> occupiedRailsSet = new HashSet<>();
for (int i = 0; i < positions.size(); i++) {
Vector2D point = positions.get(i);
Rail containingRail = railNetwork.findContainingRail(point);
if (containingRail != null) {
occupiedRails.add(containingRail);
occupiedRailsSet.add(containingRail);
} else if (i > 0) {
Rail[] touchingRails = railNetwork.findTouchingRails(point);
for (Rail rail : touchingRails) {
@ -180,14 +179,14 @@ public final class Train {
// ONLY add this rail if we actually occupy it fully
// note that this edge case only happens with rails of length one:
// otherwise at least one position will be contained in the rail (see above)
occupiedRails.add(rail);
occupiedRailsSet.add(rail);
}
}
}
}
this.position = positions;
this.direction = direction;
this.occupiedRails = occupiedRails;
this.occupiedRails = occupiedRailsSet;
return true;
}