PrimitiveGenerator.h

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#pragma once
 
#include "Graphics/Mesh.h"
#include <memory>
 
class PrimitiveGenerator
{
public:
    static std::shared_ptr<Mesh> CreateCube(float size = 1.0f);
 
    static std::shared_ptr<Mesh> CreatePlane(float width = 1.0f, float height = 1.0f,
                                             int widthSegments = 1, int heightSegments = 1);
 
    static std::shared_ptr<Mesh> CreateSphere(float radius = 0.5f, int widthSegments = 32, int heightSegments = 16);
 
    static std::shared_ptr<Mesh> CreateCylinder(float radiusTop = 0.5f, float radiusBottom = 0.5f,
                                                float height = 1.0f, int radialSegments = 32, int heightSegments = 1);
 
    static std::shared_ptr<Mesh> CreateTriangle(float size = 1.0f);
 
private:
    // Helper methods
    static void AddVertex(std::vector<float> &vertices, float x, float y, float z, float nx, float ny, float nz, float u, float v);
    static void AddTriangle(std::vector<unsigned int> &indices, unsigned int a, unsigned int b, unsigned int c);
};