Math.hpp File Reference

Contains simple math functionality. More...

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Namespaces
namespace	Gosu
	The library's main namespace.
Functions
long	Gosu::trunc (double value)
	Truncates the fractional part of a real value.
long	Gosu::round (double value)
	Rounds a real value towards the next integer.
double	Gosu::random (double min, double max)
	Returns a real value between min (inclusive) and max (exclusive).
double	Gosu::gosuToRadians (double angle)
	Translates between Gosu's angle system (where 0¡ is at the top) and radians (where 0 is at the right).
double	Gosu::radiansToGosu (double angle)
	Translates between Gosu's angle system (where 0¡ is at the top) and radians (where 0 is at the right).
double	Gosu::degreesToRadians (double angle)
	Translates between degrees (used by Gosu) and radians, i.e.
double	Gosu::radiansToDegrees (double angle)
	Translates between degrees (used by Gosu) and radians, i.e.
double	Gosu::offsetX (double angle, double radius)
	Returns the horizontal distance between the origin and the point to which you would get if you moved radius pixels in the direction specified by angle.
double	Gosu::offsetY (double angle, double radius)
	Returns the vertical distance between the origin and the point to which you would get if you moved radius pixels in the direction specified by angle.
double	Gosu::angle (double fromX, double fromY, double toX, double toY, double def=0)
	Returns the angle from point 1 to point 2 in degrees, where 0.0 means upwards.
double	Gosu::angleDiff (double angle1, double angle2)
	Returns the smallest angle that can be added to angle1 to get to angle2 (can be negative if counter-clockwise movement is shorter).
double	Gosu::normalizeAngle (double angle)
	Normalizes an angle to fit into the range [0; 360[.
template<typename T >
T	Gosu::square (T value)
	Returns value * value.
template<typename T >
T	Gosu::clamp (T value, T min, T max)
	Returns min if value is smaller than min, max if value is larger than max and value otherwise.
template<typename T >
T	Gosu::boundBy (T value, T min, T max)
int	Gosu::wrap (int value, int min, int max)
	Returns (value-min) % (max-min) + min, where % always has a positive result for max > min.
float	Gosu::wrap (float value, float min, float max)
	Returns (value-min) % (max-min) + min, where % always has a positive result for max > min.
double	Gosu::wrap (double value, double min, double max)
	Returns (value-min) % (max-min) + min, where % always has a positive result for max > min.
double	Gosu::distanceSqr (double x1, double y1, double x2, double y2)
	Returns the square of the distance between two points.
double	Gosu::distance (double x1, double y1, double x2, double y2)
	Returns the distance between two points.
template<typename T >
T	Gosu::interpolate (T a, T b, double weight=0.5)
	Interpolates a value between a and b, weight being the bias towards the second value.
Variables
const double	Gosu::pi = 3.1415926536
	Pi.

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Detailed Description

Contains simple math functionality.

Definition in file Math.hpp.