ChatMessage.cs

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using System;
using System.IO;
using System.Text;
using Terraria.Chat.Commands;
 
namespace Terraria.Chat;
 
public sealed class ChatMessage
{
    public ChatCommandId CommandId { get; private set; }
 
    public string Text { get; set; }
 
    public bool IsConsumed { get; private set; }
 
    public ChatMessage(string message)
    {
        CommandId = ChatCommandId.FromType<SayChatCommand>();
        Text = message;
        IsConsumed = false;
    }
 
    private ChatMessage(string message, ChatCommandId commandId)
    {
        CommandId = commandId;
        Text = message;
    }
 
    public void Serialize(BinaryWriter writer)
    {
        if (IsConsumed)
        {
            throw new InvalidOperationException("Message has already been consumed.");
        }
        CommandId.Serialize(writer);
        writer.Write(Text);
    }
 
    public int GetMaxSerializedSize()
    {
        if (IsConsumed)
        {
            throw new InvalidOperationException("Message has already been consumed.");
        }
        return 0 + CommandId.GetMaxSerializedSize() + (4 + Encoding.UTF8.GetByteCount(Text));
    }
 
    public static ChatMessage Deserialize(BinaryReader reader)
    {
        ChatCommandId commandId = ChatCommandId.Deserialize(reader);
        return new ChatMessage(reader.ReadString(), commandId);
    }
 
    public void SetCommand(ChatCommandId commandId)
    {
        if (IsConsumed)
        {
            throw new InvalidOperationException("Message has already been consumed.");
        }
        CommandId = commandId;
    }
 
    public void SetCommand<T>() where T : IChatCommand
    {
        if (IsConsumed)
        {
            throw new InvalidOperationException("Message has already been consumed.");
        }
        CommandId = ChatCommandId.FromType<T>();
    }
 
    public void Consume()
    {
        IsConsumed = true;
    }
}