C#•2y ago

❔ Continue a switch statement

The switch statement is very convenient for managing my types. I would like to instead of just having one of these hit, for it to hit any that meet criteria.

            switch (kinematic)
            {
                case PlayerShip playerShip:
                    playerShipsEnteredProximityOfEntity.Add(new KeyValuePair<ushort, ushort> (kinematic.KinematicId, collision.Id));
                    break;
                case BaseEntity entity:
                    if (!entity.EntitiesInProximity.Contains(collision.Id))
                        entity.EntitiesInProximity.Add(collision.Id);
                    break;
            }

            switch (kinematic)
            {
                case PlayerShip playerShip:
                    playerShipsEnteredProximityOfEntity.Add(new KeyValuePair<ushort, ushort> (kinematic.KinematicId, collision.Id));
                    break;
                case BaseEntity entity:
                    if (!entity.EntitiesInProximity.Contains(collision.Id))
                        entity.EntitiesInProximity.Add(collision.Id);
                    break;
            }

8 Replies

Thinker•2y ago

You can let a case fall through to the next case, but I don't think that's what you want. I think a simple series of If-statements would be the simplest here.

VelcerOP•2y ago

How can I easily determine the type in an if statement?

Servator•2y ago

You can use when with case

Anton•2y ago

the is operator

Anton•2y ago

https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/operators/is

The is operator - Match an expression against a type or constant ...

Learn about the C# is operator that matches an expression against a pattern. The is operator returns true when the expression matches the pattern.

Servator•2y ago

case BaseEntity entity when !entity.EntitiesInProximity.Contains(collision.Id):
// bla bla
break;

case BaseEntity entity when !entity.EntitiesInProximity.Contains(collision.Id):
// bla bla
break;

phaseshift•2y ago

case BaseEntity entity:
  entity.Foo()

case BaseEntity entity:
  entity.Foo()

etc

Accord•2y ago

Was this issue resolved? If so, run /close - otherwise I will mark this as stale and this post will be archived until there is new activity.

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Programming

❔ Continue a switch statement