34 lines
1.2 KiB
C++
34 lines
1.2 KiB
C++
#ifndef OBJECT_ID_H
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#define OBJECT_ID_H
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#include "core/typedefs.h"
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// Class to store an object ID (int64)
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// needs to be compatile with int64 because this is what Variant uses
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// Also, need to be explicitly only castable to 64 bits integer types
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// to avoid bugs due to loss of precision
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class ObjectID {
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uint64_t id = 0;
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public:
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_ALWAYS_INLINE_ bool is_reference() const { return (id & (uint64_t(1) << 63)) != 0; }
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_ALWAYS_INLINE_ bool is_valid() const { return id != 0; }
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_ALWAYS_INLINE_ bool is_null() const { return id == 0; }
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_ALWAYS_INLINE_ operator uint64_t() const { return id; }
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_ALWAYS_INLINE_ operator int64_t() const { return id; }
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_ALWAYS_INLINE_ bool operator==(const ObjectID &p_id) const { return id == p_id.id; }
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_ALWAYS_INLINE_ bool operator!=(const ObjectID &p_id) const { return id != p_id.id; }
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_ALWAYS_INLINE_ bool operator<(const ObjectID &p_id) const { return id < p_id.id; }
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_ALWAYS_INLINE_ void operator=(int64_t p_int64) { id = p_int64; }
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_ALWAYS_INLINE_ void operator=(uint64_t p_uint64) { id = p_uint64; }
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_ALWAYS_INLINE_ ObjectID() {}
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_ALWAYS_INLINE_ explicit ObjectID(const uint64_t p_id) { id = p_id; }
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_ALWAYS_INLINE_ explicit ObjectID(const int64_t p_id) { id = p_id; }
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};
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#endif // OBJECT_ID_H
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