added simple description for eval_move

2010-10-21 17:33:14 +02:00 · 2010-10-21 17:33:14 +02:00 · 24d5ca7d4e
commit 24d5ca7d4e
parent e711060cb9
1 changed files with 6 additions and 1 deletions
--- a/src/powder.c
+++ b/src/powder.c
@ -49,7 +49,12 @@ static void photoelectric_effect(int nx, int ny)
 	pn_junction_sprk(nx, ny, PT_PSCN);
    }
 }
-
+/*
+   RETURN-value explenation
+1 = Swap        
+0 = No move/Bounce
+2 = Both particles occupy the same space.
+ */
 static int eval_move(int pt, int nx, int ny, unsigned *rr)
 {
    unsigned r;