init

bclib.py

@@ -0,0 +1,27 @@
+class bancor:
+    total_supply = 0
+    reserved_token = 0
+    price = 0
+    cw = 0
+
+    def __init__(self, token, rate, cw):
+        bancor.total_supply = token * rate
+        bancor.reserved_token = (bancor.total_supply * cw)
+        bancor.price = bancor.reserved_token / (bancor.total_supply * cw)
+        bancor.cw = cw
+
+    @staticmethod
+    def issue_by_reserve_token(amount):
+        smart_token_amount = bancor.total_supply * (((1 + (amount / bancor.reserved_token)) ** bancor.cw) -1)
+        bancor.reserved_token = bancor.reserved_token + amount
+        bancor.total_supply = bancor.total_supply + smart_token_amount
+        bancor.price = bancor.reserved_token / (bancor.total_supply * bancor.cw)
+        return smart_token_amount
+
+    @staticmethod
+    def destroy_by_reserve_token(amount):
+        smart_token_amount = bancor.reserved_token * (1 - ((1 - (amount / bancor.total_supply)) ** (1/bancor.cw)))
+        bancor.reserved_token = bancor.reserved_token -smart_token_amount
+        bancor.total_supply = bancor.total_supply - amount
+        bancor.price = bancor.reserved_token / (bancor.total_supply * bancor.cw)
+        return smart_token_amount

example.py

@@ -0,0 +1,8 @@
+from bclib import bancor
+
+bancor_1 = bancor(300000, 1, 0.2)
+# @total_supply=300299.40179372387, @reserved_token=60300.0, @price=1.003998003989035, @crr=0.2>
+bancor_1.issue_by_reserve_token(300)
+bancor_1.issue_by_reserve_token(700)
+bancor_1.destroy_by_reserve_token(1302)
+bancor_1.issue_by_reserve_token(100)