From: florianf <florianf@837edb03-e0f3-0310-88ca-d4d4e8b29345>
Date: Sun, 28 Feb 2010 10:51:32 +0000 (+0000)
Subject: Rectf: Implement distance().
X-Git-Url: https://git.verplant.org/?a=commitdiff_plain;h=4a6701bd3dbd29530451f728126d30edb89eaddb;p=supertux.git

Rectf: Implement distance().

Calculates the distance from this rectangle to another rectangle or a vector.


git-svn-id: http://supertux.lethargik.org/svn/supertux/trunk/supertux@6447 837edb03-e0f3-0310-88ca-d4d4e8b29345
---

diff --git a/src/math/rectf.hpp b/src/math/rectf.hpp
index f34bb43f7..f9d456593 100644
--- a/src/math/rectf.hpp
+++ b/src/math/rectf.hpp
@@ -20,6 +20,7 @@
 #include <assert.h>
 
 #include "math/vector.hpp"
+#include "object/anchor_point.hpp"
 
 /** This class represents a rectangle.
  * (Implementation Note) We're using upper left and lower right point instead of
@@ -109,6 +110,20 @@ public:
     return true;
   }
 
+  float distance (const Vector& other, AnchorPoint ap = ANCHOR_MIDDLE) const
+  {
+    Vector v = get_anchor_pos (*this, ap);
+    return ((v - other).norm ());
+  }
+
+  float distance (const Rectf& other, AnchorPoint ap = ANCHOR_MIDDLE) const
+  {
+    Vector v1 = get_anchor_pos (*this, ap);
+    Vector v2 = get_anchor_pos (other, ap);
+
+    return ((v1 - v2).norm ());
+  }
+
   // leave these two public to save the headaches of set/get functions for such
   // simple things :)