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  1. abstract class Buff
  2. {
  3.    public abstract void Apply(IBuffTargetable<Buff> target);
  4.    public abstract void Unapply();
  5. }
  6. class PlayerBuff : Buff
  7. {
  8. 	public Player AffectedPlayer { get; private set; }
  9.  
  10. 	public override void Apply(IBuffTargetable<Buff> target)
  11. 	{
  12. 		AffectedPlayer = (Player)target;
  13. 	}
  14. 	public override void Unapply()
  15. 	{
  16. 		AffectedPlayer = null;
  17. 	}
  18. }
  19.  
  20. interface IBuffTargetable<T> where T : Buff
  21. {
  22.    T[] AppliedBuffs { get; }
  23.    void ApplyBuff(T buff);
  24.    void UnapplyBuff(T buff);
  25. }
  26.  
  27. class Player : IBuffTargetable<PlayerBuff>
  28. {
  29. 	private List<PlayerBuff> appliedBuffs;
  30. 	public PlayerBuff[] AppliedBuffs
  31. 	{
  32. 		get { return appliedBuffs.ToArray(); }
  33. 	}
  34.  
  35. 	public void ApplyBuff(PlayerBuff buff)
  36. 	{
  37. 		buff.Apply((IBuffTargetable<Buff>)this);
  38. 		appliedBuffs.Add(buff);
  39. 	}
  40. 	public void UnapplyBuff(PlayerBuff buff)
  41. 	{
  42. 		if (appliedBuffs.Remove(buff))
  43. 			buff.Unapply();
  44. 	}
  45.  
  46. 	private void Awake()
  47. 	{
  48. 		appliedBuffs = new List<PlayerBuff>(10);
  49. 	}
  50. }
  51.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.cs(29,10): error CS0246: The type or namespace name `List' could not be found. Are you missing `System.Collections.Generic' using directive?
Compilation failed: 1 error(s), 0 warnings
stdout
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Standard output is empty
https://ideone.com/aB3GOM
language:
C# (gmcs 5.20.1)
created:
9 years ago
visibility:
public

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