refactor

1 files changed, 2 insertions, 5 deletions

diff --git a/balls.h b/balls.h
index 1a0038b..2cabd6e 100644
--- a/balls.h
+++ b/balls.h
@@ -1,5 +1,3 @@
-#include <stdlib.h>
-
 typedef struct {
 	double x, y;
 } Point;
@@ -26,6 +24,8 @@ Point ptSubVec(Point p, Vector v);
 Point ptMulS(Point p, double s);
 Point ptDivS(Point p, double s);
 Point Pt(double x, double y);
+Rectangle insetRect(Rectangle r, double n);
+Point randPtInRect(Rectangle r);
 
 Vector addVec(Vector v1, Vector v2);
 Vector subVec(Vector v1, Vector v2);
@@ -37,9 +37,6 @@ double vecLen(Vector v);
 Vector Vec(double x, double y);
 Vector VecPt(Point p, Point q);
 
-Rectangle insetRect(Rectangle r, double n);
-Point randPtInRect(Rectangle r);
-
 int isCollision(Point p1, double r1, Point p2, double r2);
 void collideWall(Ball *b, Rectangle wall);
 void collideBall(Ball *b1, Ball *b2);