ScalePath.hpp

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//
//  CeresEngine - A game development framework
//
//  Created by Rogiel Sulzbach.
//  Copyright (c) 2018-2022 Rogiel Sulzbach. All rights reserved.
//
 
#pragma once
 
#include "TransformPath.hpp"
 
namespace CeresEngine::MeshGenerator {
 
    template<typename Path> class ScalePath {
    private:
        using Impl = TransformPath<Path>;
        Impl mTransformPath;
 
    public:
        ScalePath(Path path, const Vector3& scale)
                : mTransformPath{std::move(path), [scale](PathVertex& value) {
                                     value.position *= scale;
                                     value.tangent = normalize(scale * value.tangent);
                                     value.normal = normalize(scale * value.normal);
                                 }} {}
 
        using Edges = typename Impl::Edges;
 
        [[nodiscard]] Edges edges() const noexcept { return mTransformPath.edges(); }
 
        using Vertices = typename Impl::Vertices;
 
        [[nodiscard]] Vertices vertices() const noexcept { return mTransformPath.vertices(); }
    };
 
    template<typename Path> ScalePath<Path> scalePath(Path path, const Vector3& scale) { return ScalePath<Path>{std::move(path), scale}; }
 
} // namespace CeresEngine::MeshGenerator