adjust tanken to cents and improve it

geldschieberbot: convert commandline to lower case

tanken: fix spelling
tanken: do less int conversions
tanken: return ints

1 files changed, 17 insertions, 9 deletions

diff --git a/tanken.py b/tanken.py
index 501978b..a9468b0 100644
--- a/tanken.py
+++ b/tanken.py
@@ -1,26 +1,34 @@
 #!/bin/env python3
 
+# cost should be given in cents
 def tanken(drives, cost):
-    passagers = {}
+    passengers = {}
     distance = 0.
     drives = [d.split(' ') for d in drives]
 
     for d in drives:
         try:
-            distance += int(d[0])
+            d[0] = int(d[0])
         except:
             return None, "Lines have to start with the driven distance!"
+
+        # calculate overall distance
+        distance += d[0]
+
+        # collect distances per passenger
         for p in d[1:]:
-            if p not in passagers:
-                passagers[p] = [int(d[0]),0]
+            if p not in passengers:
+                passengers[p] = [d[0],0]
             else:
-                passagers[p][0] += int(d[0])
+                passengers[p][0] += d[0]
    
-    c = cost/distance 
+    # calculate cost per kilometer
+    c = cost/distance
 
     for d in drives:
-        c_d = c * int(d[0]) / (len(d) - 1)
+        # calculate cost per drive split through passengers
+        c_d = int(c * d[0] / (len(d) - 1))
         for p in d[1:]:
-            passagers[p][1] += c_d
+            passengers[p][1] += c_d
 
-    return passagers, None
+    return passengers, None