oecs-sharp/Game.Blackjack/Commands/PlaceBetCommand.cs

using MessagePack;
using OECS;

namespace Game.Blackjack;

/// <summary>
/// Places a bet and advances the game to the dealing phase.
/// </summary>
[MessagePackObject]
public struct PlaceBetCommand : ICommand
{
    [Key(0)] public int Amount;

    public void Execute(World world)
    {
        ref var state = ref world.GetSingleton<GameState>();

        if (state.Phase != GamePhase.Betting)
            return;

        if (Amount < 1 || Amount > state.Chips)
            return;

        state.CurrentBet = Amount;
        state.Chips -= Amount;
        state.Phase = GamePhase.Dealing;
    }
}