Documentation of SFML 2.6.1
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sf::Vector2< T > Class Template Reference
Utility template class for manipulating 2-dimensional vectors. More...
#include <SFML/System/Vector2.hpp>
Public Member Functions | |
| Vector2 () | |
| Default constructor. | |
| Vector2 (T X, T Y) | |
| Construct the vector from its coordinates. | |
| template<typename U > | |
| Vector2 (const Vector2< U > &vector) | |
| Construct the vector from another type of vector. | |
Public Attributes | |
| T | x |
| X coordinate of the vector. | |
| T | y |
| Y coordinate of the vector. | |
Related Symbols | |
(Note that these are not member symbols.) | |
| template<typename T > | |
| Vector2< T > | operator- (const Vector2< T > &right) |
| Overload of unary operator -. | |
| template<typename T > | |
| Vector2< T > & | operator+= (Vector2< T > &left, const Vector2< T > &right) |
| Overload of binary operator +=. | |
| template<typename T > | |
| Vector2< T > & | operator-= (Vector2< T > &left, const Vector2< T > &right) |
| Overload of binary operator -=. | |
| template<typename T > | |
| Vector2< T > | operator+ (const Vector2< T > &left, const Vector2< T > &right) |
| Overload of binary operator +. | |
| template<typename T > | |
| Vector2< T > | operator- (const Vector2< T > &left, const Vector2< T > &right) |
| Overload of binary operator -. | |
| template<typename T > | |
| Vector2< T > | operator* (const Vector2< T > &left, T right) |
| Overload of binary operator *. | |
| template<typename T > | |
| Vector2< T > | operator* (T left, const Vector2< T > &right) |
| Overload of binary operator *. | |
| template<typename T > | |
| Vector2< T > & | operator*= (Vector2< T > &left, T right) |
| Overload of binary operator *=. | |
| template<typename T > | |
| Vector2< T > | operator/ (const Vector2< T > &left, T right) |
| Overload of binary operator /. | |
| template<typename T > | |
| Vector2< T > & | operator/= (Vector2< T > &left, T right) |
| Overload of binary operator /=. | |
| template<typename T > | |
| bool | operator== (const Vector2< T > &left, const Vector2< T > &right) |
| Overload of binary operator ==. | |
| template<typename T > | |
| bool | operator!= (const Vector2< T > &left, const Vector2< T > &right) |
| Overload of binary operator !=. | |
Detailed Description
template<typename T>
class sf::Vector2< T >
class sf::Vector2< T >
Utility template class for manipulating 2-dimensional vectors.
sf::Vector2 is a simple class that defines a mathematical vector with two coordinates (x and y).
It can be used to represent anything that has two dimensions: a size, a point, a velocity, etc.
The template parameter T is the type of the coordinates. It can be any type that supports arithmetic operations (+, -, /, *) and comparisons (==, !=), for example int or float.
You generally don't have to care about the templated form (sf::Vector2<T>), the most common specializations have special typedefs:
- sf::Vector2<float> is sf::Vector2f
- sf::Vector2<int> is sf::Vector2i
- sf::Vector2<unsigned int> is sf::Vector2u
The sf::Vector2 class has a small and simple interface, its x and y members can be accessed directly (there are no accessors like setX(), getX()) and it contains no mathematical function like dot product, cross product, length, etc.
Usage example:
sf::Vector2f v1(16.5f, 24.f);
v1.x = 18.2f;
float y = v1.y;
sf::Vector2f v2 = v1 * 5.f;
sf::Vector2f v3;
v3 = v1 + v2;
bool different = (v2 != v3);
Note: for 3-dimensional vectors, see sf::Vector3.
Definition at line 37 of file Vector2.hpp.
Constructor & Destructor Documentation
◆ Vector2() [1/3]
template<typename T >
| sf::Vector2< T >::Vector2 | ( | ) |
Default constructor.
Creates a Vector2(0, 0).
◆ Vector2() [2/3]
template<typename T >
| sf::Vector2< T >::Vector2 | ( | T | X, |
| T | Y | ||
| ) |
Construct the vector from its coordinates.
- Parameters
-
X X coordinate Y Y coordinate
◆ Vector2() [3/3]
template<typename T >
template<typename U >
|
explicit |
Construct the vector from another type of vector.
This constructor doesn't replace the copy constructor, it's called only when U != T. A call to this constructor will fail to compile if U is not convertible to T.
- Parameters
-
vector Vector to convert
Friends And Related Symbol Documentation
◆ operator!=()
template<typename T >
|
related |
Overload of binary operator !=.
This operator compares strict difference between two vectors.
- Parameters
-
left Left operand (a vector) right Right operand (a vector)
- Returns
- True if left is not equal to right
◆ operator*() [1/2]
Overload of binary operator *.
- Parameters
-
left Left operand (a vector) right Right operand (a scalar value)
- Returns
- Memberwise multiplication by right
◆ operator*() [2/2]
Overload of binary operator *.
- Parameters
-
left Left operand (a scalar value) right Right operand (a vector)
- Returns
- Memberwise multiplication by left
◆ operator*=()
Overload of binary operator *=.
This operator performs a memberwise multiplication by right, and assigns the result to left.
- Parameters
-
left Left operand (a vector) right Right operand (a scalar value)
- Returns
- Reference to left
◆ operator+()
template<typename T >
|
related |
Overload of binary operator +.
- Parameters
-
left Left operand (a vector) right Right operand (a vector)
- Returns
- Memberwise addition of both vectors
◆ operator+=()
template<typename T >
|
related |
Overload of binary operator +=.
This operator performs a memberwise addition of both vectors, and assigns the result to left.
- Parameters
-
left Left operand (a vector) right Right operand (a vector)
- Returns
- Reference to left
◆ operator-() [1/2]
template<typename T >
|
related |
Overload of binary operator -.
- Parameters
-
left Left operand (a vector) right Right operand (a vector)
- Returns
- Memberwise subtraction of both vectors
◆ operator-() [2/2]
Overload of unary operator -.
- Parameters
-
right Vector to negate
- Returns
- Memberwise opposite of the vector
◆ operator-=()
template<typename T >
|
related |
Overload of binary operator -=.
This operator performs a memberwise subtraction of both vectors, and assigns the result to left.
- Parameters
-
left Left operand (a vector) right Right operand (a vector)
- Returns
- Reference to left
◆ operator/()
Overload of binary operator /.
- Parameters
-
left Left operand (a vector) right Right operand (a scalar value)
- Returns
- Memberwise division by right
◆ operator/=()
Overload of binary operator /=.
This operator performs a memberwise division by right, and assigns the result to left.
- Parameters
-
left Left operand (a vector) right Right operand (a scalar value)
- Returns
- Reference to left
◆ operator==()
template<typename T >
|
related |
Overload of binary operator ==.
This operator compares strict equality between two vectors.
- Parameters
-
left Left operand (a vector) right Right operand (a vector)
- Returns
- True if left is equal to right
Member Data Documentation
◆ x
template<typename T >
| T sf::Vector2< T >::x |
X coordinate of the vector.
Definition at line 75 of file Vector2.hpp.
◆ y
template<typename T >
| T sf::Vector2< T >::y |
Y coordinate of the vector.
Definition at line 76 of file Vector2.hpp.
The documentation for this class was generated from the following file: