Added weight contraints.

contents/code/main.py

@@ -113,6 +113,11 @@ class Koala():
         elif name == "sickness" and value < 0:
             value = 0
 
+        if name == "weight" and value > 60:
+            value = 60
+        elif name == "weight" and value < 10:
+            value = 10 
+
         self.__dict__[name] = value
 
     def update(self):
@@ -199,7 +204,7 @@ class Koala():
     def feed(self):
         self.hunger -= 2
         self.dirtiness += 0.5
-        self.weight += 1
+        self.weight += 0.5
 
     def turn(self):
         self.happiness += 3