Update calories formula

Using formula from [1] to calculate the number of lost calories.

[1] http://www.indiacurry.com/weightloss/walkingrunningcalories.htm

diff --git a/src/usr/lib/hildon-desktop/pedometer_widget_home.py b/src/usr/lib/hildon-desktop/pedometer_widget_home.py
index 31992ca..bfd6a8f 100644 (file)
--- a/src/usr/lib/hildon-desktop/pedometer_widget_home.py
+++ b/src/usr/lib/hildon-desktop/pedometer_widget_home.py
@@ -460,7 +460,7 @@ class PedoController(Singleton):
         else:
             self.v[0].steps += cnt
             self.v[0].dist += self.get_distance(cnt)
-            self.v[0].calories += self.get_distance(cnt)
+            self.v[0].calories += self.get_calories(self.get_distance(cnt))
             self.v[0].time += time.time() - self.last_time
             if last_steps:
                 self.save_values()
@@ -469,6 +469,24 @@ class PedoController(Singleton):
                 self.notify(True)
         self.last_time = time.time()
 
+    def get_calories(self, distance):
+        """calculate lost calories for the distance and weight given as parameters
+        """
+        #different coefficient for running and walking
+        if self.mode == 0:
+            coef = 0.53
+        else:
+            coef = 0.75
+
+        #convert distance from meters to miles
+        distance *= 0.000621371192
+
+        weight = self.weight
+        #convert weight from kg to pounds
+        if self.unit == 0:
+            weight *= 2.20462262
+        return weight * distance * coef
+
     def set_mode(self, mode):
         self.mode = mode
         self.set_height(self.height_interval)
@@ -525,9 +543,6 @@ class PedoController(Singleton):
             steps = self.counter
         return self.STEP_LENGTH * steps;
 
-    def get_calories(self, steps):
-        return steps
-
     def add_observer(self, func):
         try:
             self.observers.index(func)