namespace GameCli;

/// <summary>
/// Immutable ship pose + velocity in world coordinates.
/// World is [0,1] × [0,1]. Y increases downward (screen-native).
/// Angle=0 means "ship pointing up" (main engine points down).
/// Positive angle rotates clockwise.
/// </summary>
public readonly record struct ShipState(
    float X,
    float Y,
    float VX,
    float VY,
    float Angle,
    float AngularVelocity)
{
    public static ShipState AtCenter() => new(0.5f, 0.5f, 0f, 0f, 0f, 0f);
}