Fix math import

Contents/PlanetDef.h

@@ -6,7 +6,7 @@
 #define SPACEEXPANSION_PLANETDEF_H
 
 #include <string>
-#include <Box2D/Common/b2Math.h>
+#include "../Maths/b2_math.h"
 #include "Stock.h"
 
 enum PlanetState {

Contents/StarShip.h

@@ -5,7 +5,7 @@
 #ifndef SPACEEXPANSION_STARSHIP_H
 #define SPACEEXPANSION_STARSHIP_H
 
-#include <Box2D/Common/b2Math.h>
+#include "../Maths/b2_math.h"
 #include "../Graphics/Visual.h"
 #include "Stock.h"
 

Control/Camera.h

@@ -6,7 +6,7 @@
 #define SPACEEXPANSION_CAMERA_H
 
 #include "Input.h"
-#include <Box2D/Common/b2Math.h>
+#include "../Maths/b2_math.h"
 
 class Camera {
     // Methods

Graphics/Visual.h

@@ -6,7 +6,7 @@
 #define TINYSHOOTER_VISUAL_H
 
 #include <vector>
-#include <Box2D/Common/b2Math.h>
+#include "../Maths/b2_math.h"
 
 /* class Visual :
  * Describe something to show.

Maths/b2Angle.h

@@ -5,7 +5,7 @@
 #ifndef TINYSHOOTER_B2ANGLE_H
 #define TINYSHOOTER_B2ANGLE_H
 
-#include <Box2D/Box2D.h>
+#include "b2_math.h"
 
 /**
  * Give angle between u and v