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godot-cpp/include/godot_cpp/variant/variant.hpp

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/**************************************************************************/
/* variant.hpp */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef GODOT_VARIANT_HPP
#define GODOT_VARIANT_HPP
#include <godot_cpp/core/defs.hpp>
#include <godot_cpp/variant/builtin_types.hpp>
#include <godot_cpp/variant/variant_size.hpp>
#include <gdextension_interface.h>
#include <array>
namespace godot {
class ObjectID;
class Variant {
uint8_t opaque[GODOT_CPP_VARIANT_SIZE]{ 0 };
friend class GDExtensionBinding;
friend class MethodBind;
static void init_bindings();
public:
enum Type {
NIL,
// atomic types
BOOL,
INT,
FLOAT,
STRING,
// math types
VECTOR2,
VECTOR2I,
RECT2,
RECT2I,
VECTOR3,
VECTOR3I,
TRANSFORM2D,
VECTOR4,
VECTOR4I,
PLANE,
QUATERNION,
AABB,
BASIS,
TRANSFORM3D,
PROJECTION,
// misc types
COLOR,
STRING_NAME,
NODE_PATH,
RID,
OBJECT,
CALLABLE,
SIGNAL,
DICTIONARY,
ARRAY,
// typed arrays
PACKED_BYTE_ARRAY,
PACKED_INT32_ARRAY,
PACKED_INT64_ARRAY,
PACKED_FLOAT32_ARRAY,
PACKED_FLOAT64_ARRAY,
PACKED_STRING_ARRAY,
PACKED_VECTOR2_ARRAY,
PACKED_VECTOR3_ARRAY,
PACKED_COLOR_ARRAY,
VARIANT_MAX
};
enum Operator {
// comparison
OP_EQUAL,
OP_NOT_EQUAL,
OP_LESS,
OP_LESS_EQUAL,
OP_GREATER,
OP_GREATER_EQUAL,
// mathematic
OP_ADD,
OP_SUBTRACT,
OP_MULTIPLY,
OP_DIVIDE,
OP_NEGATE,
OP_POSITIVE,
OP_MODULE,
OP_POWER,
// bitwise
OP_SHIFT_LEFT,
OP_SHIFT_RIGHT,
OP_BIT_AND,
OP_BIT_OR,
OP_BIT_XOR,
OP_BIT_NEGATE,
// logic
OP_AND,
OP_OR,
OP_XOR,
OP_NOT,
// containment
OP_IN,
OP_MAX
};
private:
static GDExtensionVariantFromTypeConstructorFunc from_type_constructor[VARIANT_MAX];
static GDExtensionTypeFromVariantConstructorFunc to_type_constructor[VARIANT_MAX];
public:
_FORCE_INLINE_ GDExtensionVariantPtr _native_ptr() const { return const_cast<uint8_t(*)[GODOT_CPP_VARIANT_SIZE]>(&opaque); }
Variant();
Variant(std::nullptr_t n) :
Variant() {}
explicit Variant(GDExtensionConstVariantPtr native_ptr);
Variant(const Variant &other);
Variant(Variant &&other);
Variant(bool v);
Variant(int64_t v);
Variant(int32_t v) :
Variant(static_cast<int64_t>(v)) {}
Variant(int16_t v) :
Variant(static_cast<int64_t>(v)) {}
Variant(int8_t v) :
Variant(static_cast<int64_t>(v)) {}
Variant(uint64_t v) :
Variant(static_cast<int64_t>(v)) {}
Variant(uint32_t v) :
Variant(static_cast<int64_t>(v)) {}
Variant(uint16_t v) :
Variant(static_cast<int64_t>(v)) {}
Variant(uint8_t v) :
Variant(static_cast<int64_t>(v)) {}
Variant(double v);
Variant(float v) :
Variant((double)v) {}
Variant(const String &v);
Variant(const char *v) :
Variant(String(v)) {}
Variant(const char16_t *v) :
Variant(String(v)) {}
Variant(const char32_t *v) :
Variant(String(v)) {}
Variant(const wchar_t *v) :
Variant(String(v)) {}
Variant(const Vector2 &v);
Variant(const Vector2i &v);
Variant(const Rect2 &v);
Variant(const Rect2i &v);
Variant(const Vector3 &v);
Variant(const Vector3i &v);
Variant(const Transform2D &v);
Variant(const Vector4 &v);
Variant(const Vector4i &v);
Variant(const Plane &v);
Variant(const Quaternion &v);
Variant(const godot::AABB &v);
Variant(const Basis &v);
Variant(const Transform3D &v);
Variant(const Projection &v);
Variant(const Color &v);
Variant(const StringName &v);
Variant(const NodePath &v);
Variant(const godot::RID &v);
Variant(const ObjectID &v);
Variant(const Object *v);
Variant(const Callable &v);
Variant(const Signal &v);
Variant(const Dictionary &v);
Variant(const Array &v);
Variant(const PackedByteArray &v);
Variant(const PackedInt32Array &v);
Variant(const PackedInt64Array &v);
Variant(const PackedFloat32Array &v);
Variant(const PackedFloat64Array &v);
Variant(const PackedStringArray &v);
Variant(const PackedVector2Array &v);
Variant(const PackedVector3Array &v);
Variant(const PackedColorArray &v);
~Variant();
operator bool() const;
operator int64_t() const;
operator int32_t() const;
operator int16_t() const;
operator int8_t() const;
operator uint64_t() const;
operator uint32_t() const;
operator uint16_t() const;
operator uint8_t() const;
operator double() const;
operator float() const;
operator String() const;
operator Vector2() const;
operator Vector2i() const;
operator Rect2() const;
operator Rect2i() const;
operator Vector3() const;
operator Vector3i() const;
operator Transform2D() const;
operator Vector4() const;
operator Vector4i() const;
operator Plane() const;
operator Quaternion() const;
operator godot::AABB() const;
operator Basis() const;
operator Transform3D() const;
operator Projection() const;
operator Color() const;
operator StringName() const;
operator NodePath() const;
operator godot::RID() const;
operator ObjectID() const;
operator Object *() const;
operator Callable() const;
operator Signal() const;
operator Dictionary() const;
operator Array() const;
operator PackedByteArray() const;
operator PackedInt32Array() const;
operator PackedInt64Array() const;
operator PackedFloat32Array() const;
operator PackedFloat64Array() const;
operator PackedStringArray() const;
operator PackedVector2Array() const;
operator PackedVector3Array() const;
operator PackedColorArray() const;
Variant &operator=(const Variant &other);
Variant &operator=(Variant &&other);
bool operator==(const Variant &other) const;
bool operator!=(const Variant &other) const;
bool operator<(const Variant &other) const;
void callp(const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error);
template <typename... Args>
Variant call(const StringName &method, Args... args) {
std::array<Variant, sizeof...(args)> vargs = { args... };
std::array<const Variant *, sizeof...(args)> argptrs;
for (size_t i = 0; i < vargs.size(); i++) {
argptrs[i] = &vargs[i];
}
Variant result;
GDExtensionCallError error;
callp(method, argptrs.data(), argptrs.size(), result, error);
return result;
}
static void callp_static(Variant::Type type, const StringName &method, const Variant **args, int argcount, Variant &r_ret, GDExtensionCallError &r_error);
template <typename... Args>
static Variant call_static(Variant::Type type, const StringName &method, Args... args) {
std::array<Variant, sizeof...(args)> vargs = { args... };
std::array<const Variant *, sizeof...(args)> argptrs;
for (size_t i = 0; i < vargs.size(); i++) {
argptrs[i] = &vargs[i];
}
Variant result;
GDExtensionCallError error;
callp_static(type, method, argptrs.data(), argptrs.size(), sizeof...(args), result, error);
return result;
}
static void evaluate(const Operator &op, const Variant &a, const Variant &b, Variant &r_ret, bool &r_valid);
void set(const Variant &key, const Variant &value, bool *r_valid = nullptr);
void set_named(const StringName &name, const Variant &value, bool &r_valid);
void set_indexed(int64_t index, const Variant &value, bool &r_valid, bool &r_oob);
void set_keyed(const Variant &key, const Variant &value, bool &r_valid);
Variant get(const Variant &key, bool *r_valid = nullptr) const;
Variant get_named(const StringName &name, bool &r_valid) const;
Variant get_indexed(int64_t index, bool &r_valid, bool &r_oob) const;
Variant get_keyed(const Variant &key, bool &r_valid) const;
bool in(const Variant &index, bool *r_valid = nullptr) const;
bool iter_init(Variant &r_iter, bool &r_valid) const;
bool iter_next(Variant &r_iter, bool &r_valid) const;
Variant iter_get(const Variant &r_iter, bool &r_valid) const;
Variant::Type get_type() const;
bool has_method(const StringName &method) const;
bool has_key(const Variant &key, bool *r_valid = nullptr) const;
static bool has_member(Variant::Type type, const StringName &member);
uint32_t hash() const;
uint32_t recursive_hash(int recursion_count) const;
bool hash_compare(const Variant &variant) const;
bool booleanize() const;
String stringify() const;
Variant duplicate(bool deep = false) const;
static void blend(const Variant &a, const Variant &b, float c, Variant &r_dst);
static void interpolate(const Variant &a, const Variant &b, float c, Variant &r_dst);
static String get_type_name(Variant::Type type);
static bool can_convert(Variant::Type from, Variant::Type to);
static bool can_convert_strict(Variant::Type from, Variant::Type to);
void clear();
};
struct VariantHasher {
static _FORCE_INLINE_ uint32_t hash(const Variant &p_variant) { return p_variant.hash(); }
};
struct VariantComparator {
static _FORCE_INLINE_ bool compare(const Variant &p_lhs, const Variant &p_rhs) { return p_lhs.hash_compare(p_rhs); }
};
template <typename... VarArgs>
String vformat(const String &p_text, const VarArgs... p_args) {
Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
Array args_array;
args_array.resize(sizeof...(p_args));
for (uint32_t i = 0; i < sizeof...(p_args); i++) {
args_array[i] = args[i];
}
return p_text % args_array;
}
} // namespace godot
#endif // GODOT_VARIANT_HPP
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