Adds concept for prediction engine traits

Introduces a concept `PredEngineConcept` to ensure that classes used as projectile prediction engine traits conform to a specific interface.
This enforces the presence and return types of required methods and ensures that these methods are `noexcept`, improving type safety and predictability.
This commit is contained in:
2025-08-12 09:21:34 +03:00
parent 0bd9eda48f
commit 0450dc3547

View File

@@ -13,7 +13,32 @@
namespace omath::projectile_prediction
{
template<class T>
concept PredEngineConcept =
requires(const Projectile& projectile, const Target& target, const Vector3<float>& vec_a,
const Vector3<float>& vec_b,
Vector3<float> v3, // by-value for calc_viewpoint_from_angles
float pitch, float yaw, float time, float gravity, std::optional<float> maybe_pitch) {
// Presence + return types
{ T::predict_projectile_position(projectile, pitch, yaw, time, gravity) } -> std::same_as<Vec3>;
{ T::predict_target_position(target, time, gravity) } -> std::same_as<Vec3>;
{ T::calc_vector_2d_distance(vec_a) } -> std::same_as<float>;
{ T::get_vector_height_coordinate(vec_b) } -> std::same_as<float>;
{ T::calc_viewpoint_from_angles(projectile, v3, maybe_pitch) } -> std::same_as<Vec3>;
{ T::calc_direct_pitch_angle(vec_a, vec_b) } -> std::same_as<float>;
{ T::calc_direct_yaw_angle(vec_a, vec_b) } -> std::same_as<float>;
// Enforce noexcept as in PredEngineTrait
requires noexcept(T::predict_projectile_position(projectile, pitch, yaw, time, gravity));
requires noexcept(T::predict_target_position(target, time, gravity));
requires noexcept(T::calc_vector_2d_distance(vec_a));
requires noexcept(T::get_vector_height_coordinate(vec_b));
requires noexcept(T::calc_viewpoint_from_angles(projectile, v3, maybe_pitch));
requires noexcept(T::calc_direct_pitch_angle(vec_a, vec_b));
requires noexcept(T::calc_direct_yaw_angle(vec_a, vec_b));
};
template<class EngineTrait = source_engine::PredEngineTrait>
requires PredEngineConcept<EngineTrait>
class ProjPredEngineLegacy final : public ProjPredEngineInterface
{
public: