modify logic for block.go

.vscode/settings.json

@@ -1,10 +1,5 @@
 {
     "workbench.colorTheme": "Solarized Light",
     "npm.enableScriptExplorer": true,
-    "window.zoomLevel": 3,
-    "editor.tabSize": 4,
-    "editor.insertSpaces": true,
-    "editor.detectIndentation": false,
-    "editor.tabCompletion": true,
-  }
-  
+    "window.zoomLevel": 1,
+}

block.go

@@ -26,18 +26,37 @@ func (b *Block) HashTransactions() []byte {
     return txHash[:]
 }
 
-// NewBlock creates and returns Block.
-func NewBlock(utxoPool []UTXOPool, prevBlockHash []byte) *Block {
+// Serialize serializes the block
+func (b *Block) Serialize() []byte {
+    var result bytes.Buffer
+    encoder := gob.NewEncoder(&result)
+    err := encoder.Encode(b)
+    if err != nil {
+    	log.Panic(err)
+    }
+    return result.Bytes()
+}
 
-    block := &Block{time.Now().Unix(), utxoPool, prevBlockHash, []byte{}}
-    block.SetHash()
+// NewBlock creates and returns Block.
+func NewBlock(transactions []*Transaction, prevBlockHash []byte) *Block {
+    block := &Block{time.Now().Unix(), transactions, prevBlockHash, []byte{}, 0}
+    block.Hash = block.HashTransactions()
     return block
 }
 
 // NewGenesisBlock creates and returns genesis Block.
-func NewGenesisBlock() *Block {
-    genesisUTXOPool := UTXOPool{}
-    genesisUTXOPool.utxos["genesis"] = TOTAL_COINS
+func NewGenesisBlock(coinbase *Transaction) *Block {
+    return NewBlock([]*Transaction{coinbase}, []byte{})
+}
 
-    return NewBlock(genesisUTXOPool, []byte{})
+// DeserializeBlock deserializes a block
+func DeserializeBlock(d []byte) *Block {
+    var block Block
+    decoder := gob.NewDecoder(bytes.NewReader(d))
+    err := decoder.Decode(&block)
+    if err != nil {
+        log.Panic(err)
+    }
+    return &block
 }
+

transaction.go

@@ -38,3 +38,4 @@ func (tx *Transaction) SetId() {
     hash = sha256.Sum256(encoded.Bytes())
     tx.ID = hash[:]
 }
+