VKVertex.h

#pragma once
#include <glm/glm.hpp>
#include <array>
#define GLFW_INCLUDE_VULKAN
#include <GLFW/glfw3.h>
#include <glm/gtx/hash.hpp>

struct VKVertex {

    glm::vec3 pos;
    glm::vec3 color;
	glm::vec2 texCoord;
	glm::vec3 normal = glm::vec3(0,0,1);

	static VkVertexInputBindingDescription getBindingDescription() {
        VkVertexInputBindingDescription bindingDescription = {};
        bindingDescription.binding = 0;
        bindingDescription.stride = sizeof(VKVertex);
        bindingDescription.inputRate = VK_VERTEX_INPUT_RATE_VERTEX;

        return bindingDescription;
    }

    static std::array<VkVertexInputAttributeDescription, 4> getAttributeDescriptions() {
        std::array<VkVertexInputAttributeDescription, 4> attributeDescriptions = {};

        attributeDescriptions[0].binding = 0;
        attributeDescriptions[0].location = 0;
        attributeDescriptions[0].format = VK_FORMAT_R32G32B32_SFLOAT;
        attributeDescriptions[0].offset = offsetof(VKVertex, pos);

        attributeDescriptions[1].binding = 0;
        attributeDescriptions[1].location = 1;
        attributeDescriptions[1].format = VK_FORMAT_R32G32B32_SFLOAT;
        attributeDescriptions[1].offset = offsetof(VKVertex, color);

		attributeDescriptions[2].binding = 0;
        attributeDescriptions[2].location = 2;
        attributeDescriptions[2].format = VK_FORMAT_R32G32_SFLOAT;
        attributeDescriptions[2].offset = offsetof(VKVertex, texCoord);

		attributeDescriptions[3].binding = 0;
        attributeDescriptions[3].location = 3;
        attributeDescriptions[3].format = VK_FORMAT_R32G32B32_SFLOAT;
        attributeDescriptions[3].offset = offsetof(VKVertex, normal);

        return attributeDescriptions;
    }

	bool operator==(const VKVertex& other) const {
		return pos == other.pos && color == other.color && texCoord == other.texCoord;
	}

};

namespace std {
    template<> struct hash<VKVertex> {
        size_t operator()(VKVertex const& vertex) const {
            return ((hash<glm::vec3>()(vertex.pos) ^ (hash<glm::vec3>()(vertex.color) << 1)) >> 1) ^ (hash<glm::vec2>()(vertex.texCoord) << 1);
        }
    };
}