// 02111-1307, USA.
#include <config.h>
-#include "collision.h"
+#include "collision.hpp"
#include <algorithm>
#include <iostream>
#include <stdio.h>
#include <float.h>
#include <math.h>
-#include "math/vector.h"
-#include "math/aatriangle.h"
-#include "math/rect.h"
-#include "collision_hit.h"
+#include "math/vector.hpp"
+#include "math/aatriangle.hpp"
+#include "math/rect.hpp"
+#include "collision_hit.hpp"
static const float DELTA = .0001;