Geometry

Common geometry types: 2D/3D vectors and rectangles.

Header: #include <asw/modules/geometry.h>Namespace: asw

Vec2

A templated 2D vector used for positions, directions, and sizes.

template <typename T>
class Vec2;

Constructors

Vec2();            // (0, 0)
Vec2(T x, T y);

Fields

Field	Type	Description
x	T	X component
y	T	Y component

Methods

Method	Return	Description
angle()	T	Angle of the vector in radians
angle(const Vec2& other)	T	Angle between two vectors in radians
distance(const Vec2& other)	T	Distance between two vectors
dot(const Vec2& other)	T	Dot product
cross(const Vec2& other)	T	Cross product (scalar)
magnitude()	T	Length of the vector

Operators

+, -, *, /, +=, -=, *=, /=, ==, !=

Arithmetic operators work with other Vec2 instances or scalar values.

Vec3

A templated 3D vector.

template <typename T>
class Vec3;

Constructors

Vec3();                // (0, 0, 0)
Vec3(T x, T y, T z);

Fields

Field	Type	Description
x	T	X component
y	T	Y component
z	T	Z component

Methods

Method	Return	Description
angle(const Vec3& other)	T	Angle between two vectors in radians
distance(const Vec3& other)	T	Distance between two vectors
dot(const Vec3& other)	T	Dot product
cross(const Vec3& other)	Vec3	Cross product (vector)
magnitude()	T	Length of the vector

Operators

+, -, *, /, +=, -=, *=, /=, ==, !=

Quad

A templated 2D rectangle defined by position and size. Used for bounding boxes, sprite regions, and collision detection.

template <typename T>
class Quad;

Constructors

Quad();
Quad(const Vec2<T>& position, const Vec2<T>& size);
Quad(T x, T y, T width, T height);

Fields

Field	Type	Description
position	Vec2<T>	Top-left position
size	Vec2<T>	Width and height

Methods

Method	Return	Description
setPosition(T x, T y)	void	Set the position
setSize(T width, T height)	void	Set the size
getCenter()	Vec2<T>	Get the center point
contains(const Vec2<T>& point)	bool	Point-in-rect test
contains(T x, T y)	bool	Point-in-rect test
collides(const Quad& other)	bool	AABB collision test
collidesTop(const Quad& other)	bool	Top-edge collision
collidesBottom(const Quad& other)	bool	Bottom-edge collision
collidesLeft(const Quad& other)	bool	Left-edge collision
collidesRight(const Quad& other)	bool	Right-edge collision

Operators

+, -, *, / (with other Quad or scalar values)

Example

asw::Vec2<float> pos(100.0f, 200.0f);
asw::Vec2<float> vel(1.0f, 0.0f);
pos += vel * deltaTime;

asw::Quad<float> player(100, 200, 32, 32);
asw::Quad<float> enemy(150, 210, 32, 32);

if (player.collides(enemy)) {
  // handle collision
}

if (player.contains(asw::input::mouse.position)) {
  // mouse is over the player
}