entity.h

#pragma once
 
#include <cstdint>
 
#include "core/memory/types.h"
 
namespace Vkm::Engine {

struct EntityId {
    StorageIndex key = {};

    constexpr explicit operator bool() const noexcept { return bool(key); }
 
    constexpr bool operator==(const EntityId& other) const noexcept {
        return key == other.key;
    }
    constexpr bool operator!=(const EntityId& other) const noexcept {
        return key != other.key;
    }
 
    constexpr uint32_t slot() const noexcept { return key.index; }
 
    constexpr uint32_t generation() const noexcept { return key.generation; }
};
 
static_assert(sizeof(EntityId) == 8, "EntityId must be 8 bytes");
 
} // namespace Vkm::Engine