move calcrotfriction documentation to header

src/engine/model/ragdoll.cpp

@@ -358,14 +358,6 @@ void ragdolldata::constrainrot()
     }
 }
 
-/**
- * @brief Sets the shadowing elements in rotfrictions according to their respective values in the pointed ragdollskel.
- *
- * For each member of ragdolldata::rotfrictions, sets its value to the transposed multiplication of
- * the data pointed to by the indices of the first two vertices in the ragdollskel::rotfrictions tri data.
- *
- * Previous values in ragdolldata::rotfrictions are ignored and overwritten.
- */
 void ragdolldata::calcrotfriction()
 {
     for(size_t i = 0; i < skel->rotfrictions.size(); ++i)

src/engine/model/ragdoll.h

@@ -224,6 +224,15 @@ class ragdolldata final
          */
         void applyrotlimit(const ragdollskel::tri &t1, const ragdollskel::tri &t2, float angle, const vec &axis);
         void constrainrot();
+
+        /**
+         * @brief Sets the shadowing elements in rotfrictions according to their respective values in the pointed ragdollskel.
+         *
+         * For each member of ragdolldata::rotfrictions, sets its value to the transposed multiplication of
+         * the data pointed to by the indices of the first two vertices in the ragdollskel::rotfrictions tri data.
+         *
+         * Previous values in ragdolldata::rotfrictions are ignored and overwritten.
+         */
         void calcrotfriction();
         void applyrotfriction(float ts);