Add 6.5

Author: StBogdan

chapter_6/p6_5.py

@@ -0,0 +1,47 @@
+class Jug:
+
+    def __init__(self, capacity_liters):
+        super().__init__()
+        self.capacity_liters = capacity_liters
+        self.current_fill = 0
+
+    def empty(self):
+        self.current_fill = 0
+
+    def fill(self):
+        self.current_fill = self.capacity_liters
+
+    def fill_from(self, other_jug):
+        if self.capacity_liters - self.current_fill > other_jug.current_fill:
+            # Pour the whole other jug
+            self.current_fill += other_jug.current_fill
+            other_jug.current_fill = 0
+        else:
+            # Just top off the current
+            other_jug.current_fill -= self.capacity_liters - self.current_fill
+            self.current_fill = self.capacity_liters
+
+
+if __name__ == "__main__":
+    jug_3l = Jug(3)
+    jug_5l = Jug(5)
+
+    # Create a fill of 2L in small one
+    jug_5l.fill()
+    jug_3l.fill_from(jug_5l)
+    jug_3l.empty()
+
+    # Fill 5 in the big one, top off the small one with 1L
+    jug_3l.fill_from(jug_5l)
+    jug_5l.fill()
+    jug_3l.fill_from(jug_5l)
+
+    print(f"Now in the big jug, we have {jug_5l.current_fill}")
+
+    # Progress on water quantities in the jugs
+    # 5 - 0
+    # 2 - 3
+    # 2 - 0
+    # 0 - 2
+    # 5 - 2
+    # 4 - 0