From ebdba08218dba834f83d46adade60dc310dab0d6 Mon Sep 17 00:00:00 2001
From: George Spasov <spasov05203@gmail.com>
Date: Wed, 3 Jan 2018 10:54:30 +0200
Subject: [PATCH] Added overridable getTokenAmount function

---
 contracts/crowdsale/Crowdsale.sol | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/contracts/crowdsale/Crowdsale.sol b/contracts/crowdsale/Crowdsale.sol
index 452bf573a..74744dc4d 100644
--- a/contracts/crowdsale/Crowdsale.sol
+++ b/contracts/crowdsale/Crowdsale.sol
@@ -59,12 +59,16 @@ contract Crowdsale {
     return new MintableToken();
   }
 
-
   // fallback function can be used to buy tokens
   function () external payable {
     buyTokens(msg.sender);
   }
 
+  // Override this function to create logic for periodization
+  function getTokenAmount(uint256 weiAmount) internal constant returns(uint256) {
+    return weiAmount.mul(rate);
+  }
+
   // low level token purchase function
   function buyTokens(address beneficiary) public payable {
     require(beneficiary != address(0));