C#•3y ago

Type as Parameter, and string[] from Linq

private static string[] GetRolls(AgentHitbox agentHitbox, Type type) =>
  agentHitbox.agent.GetTraits<type>().Select(t => t.Rolls);

private static string[] GetRolls(AgentHitbox agentHitbox, Type type) =>
  agentHitbox.agent.GetTraits<type>().Select(t => t.Rolls);

1. How can I use type this way? Typeof(type) didn't work either. 2. Rolls is a string[]. I need to concatenate it from the series but I haven't done that in Linq before. How do?

7 Replies

HimmDawg•3y ago

1.) Seems like you need generics for the function too 2.) What do you mean by concatenate? Adding the strings together? you can do that with string.Join(" ", stringArray);. You can replace " " with any string you want to have in between each string in the array owo

Ted BunnyOP•3y ago

1. How do I do that? 2. I need to return a string[] that is a concatenation of all the Traits' Rolls string[]s

HimmDawg•3y ago

1.) I'd try GetRolls<T>(AgentHitbox agentHitbox) => agentHitbox.agent.GetTraits<T> ... But at compile time you wont know if T has a property Rolls so you have to restrict T to something you know, sooo

private static string[] GetRolls<T>(AgentHitbox agentHitbox) where T: SomeTypeWithRolls
{
  return agentHitbox.agent.GetTraits<T>().Select(t => t.Rolls).ToArray();
}

private static string[] GetRolls<T>(AgentHitbox agentHitbox) where T: SomeTypeWithRolls
{
  return agentHitbox.agent.GetTraits<T>().Select(t => t.Rolls).ToArray();
}

2.) You are using Linq, so you can use Aggregate or i believe SelectMany could work too

ero•3y ago

And don't forget ToArray at the end

Ted BunnyOP•3y ago

I'll give that a shot, thanks! Umm catthinking

You guys rule

333fred•3y ago

In general, if you find yourself using a System.Type parameter, you've probably done something wrong 🙂

Ted BunnyOP•3y ago

Ah, ok. I'll keep that in mind, thank you!

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Type as Parameter, and string[] from Linq