namespace OECS;

/// <summary>
/// A system that runs on every tick.
/// Systems declare a query and receive the world in their <see cref="Run"/> method.
/// </summary>
public interface ISystem
{
    /// <summary>
    /// The query that defines which entities this system operates on.
    /// </summary>
    QueryDescriptor Query { get; }

    /// <summary>
    /// Executes the system logic for this tick.
    /// </summary>
    void Run(World world);
}