Updating lesson 2

afmsavage · Feb 6, 2019 · e43e089 · e43e089
1 parent e159726
commit e43e089
Showing 1 changed file with 7 additions and 7 deletions.
diff --git a/es/2/9-internalfunctions.md b/es/2/9-internalfunctions.md
@@ -6,7 +6,7 @@ material:
     language: sol
     startingCode:
       "zombiefactory.sol": |
-        pragma solidity ^0.4.19;
+        pragma solidity ^0.4.25;
 
         contract ZombieFactory {
 
@@ -30,11 +30,11 @@ material:
                 uint id = zombies.push(Zombie(_name, _dna)) - 1;
                 zombieToOwner[id] = msg.sender;
                 ownerZombieCount[msg.sender]++;
-                NewZombie(id, _name, _dna);
+                emit NewZombie(id, _name, _dna);
             }
 
             function _generateRandomDna(string _str) private view returns (uint) {
-                uint rand = uint(keccak256(_str));
+                uint rand = uint(keccak256(abi.encodePacked(_str)));
                 return rand % dnaModulus;
             }
 
@@ -46,7 +46,7 @@ material:
 
         }
       "zombiefeeding.sol": |
-        pragma solidity ^0.4.19;
+        pragma solidity ^0.4.25;
 
         import "./zombiefactory.sol";
 
@@ -62,7 +62,7 @@ material:
 
         }
     answer: >
-      pragma solidity ^0.4.19;
+      pragma solidity ^0.4.25;
 
       contract ZombieFactory {
 
@@ -85,11 +85,11 @@ material:
               uint id = zombies.push(Zombie(_name, _dna)) - 1;
               zombieToOwner[id] = msg.sender;
               ownerZombieCount[msg.sender]++;
-              NewZombie(id, _name, _dna);
+              emit NewZombie(id, _name, _dna);
           }
 
           function _generateRandomDna(string _str) private view returns (uint) {
-              uint rand = uint(keccak256(_str));
+              uint rand = uint(keccak256(abi.encodePacked(_str)));
               return rand % dnaModulus;
           }