vector2.c File Reference

#include "arc/math/vector2.h"
#include <math.h>

Go to the source code of this file.

Functions
void	ARC_Vector2_Normalize (ARC_Vector2 *vector)
	normalizes a given ARC_Vector2
void	ARC_Vector2_RotateDegree (ARC_Vector2 *vector, float angle)
	rotates a given ARC_Vector2 by a given angle in degrees

Function Documentation

ARC_Vector2_Normalize()

void ARC_Vector2_Normalize

(

ARC_Vector2 *

vector

)

normalizes a given ARC_Vector2

Parameters

vector

the ARC_Vecotr2 to normallize

Definition at line 4 of file vector2.c.

                                               {
    float length = sqrtf((vector->x * vector->x) + (vector->y * vector->y));
    if(length == 0){
        return;
    }
 
    vector->x /= length;
    vector->y /= length;
}

References ARC_Vector2::x, and ARC_Vector2::y.

ARC_Vector2_RotateDegree()

void ARC_Vector2_RotateDegree	(	ARC_Vector2 *	vector,
		float	angle )

rotates a given ARC_Vector2 by a given angle in degrees

Parameters

vector	the ARC_Vector2 to rotate
angle	the angle in degrees to rotate by

Definition at line 14 of file vector2.c.

                                                               {
    ARC_Vector2 temp = *vector;
    vector->x = (temp.x * cos(angle)) - (temp.y * sin(angle));
    vector->y = (temp.x * sin(angle)) + (temp.y * cos(angle));
}

References ARC_Vector2::x, and ARC_Vector2::y.