Create Person.cdc

Author: devbugging

cadence/contracts/Person.cdc

@@ -0,0 +1,56 @@
+ // A simple Person contract 
+ // 
+ // reference: https://developers.flow.com/cadence/language/contracts
+ pub contract Person {
+    // declaration of a public variable
+    pub var name: String
+    // declaration of a private variable, reference: https://developers.flow.com/cadence/language/access-control#access-control 
+    access(self) var mood: Mood 
+
+    // Enums type declaration, reference: https://developers.flow.com/cadence/language/enumerations#enum-declaration
+    pub enum Mood: UInt8 {
+        pub case happy
+        pub case angry
+        pub case melanholic
+    }
+
+    // initialization method for our contracts, this gets run on deployment
+    init() {
+        self.name = "Alice"
+        self.mood = Mood.happy
+    }
+
+    pub fun hello(): String {
+        log("saying hello") // when we log we can see the log in the emulator output, helpful for debugging
+        
+        switch self.mood {
+            case Mood.happy:
+                return "😍 Hello!"
+            case Mood.angry:
+                return "😤 Go away!"
+            case Mood.melanholic:
+                return "😐 Hi I guess?"
+            default: 
+                return "💩 Not sure!"
+        }
+    }
+
+    pub fun WhoAmI(): String {
+        return "I am ".concat(self.name)
+    }
+
+    // set a new name
+    pub fun setName(name: String) {
+        self.name = name
+    }
+    
+    // Friendship resource are types of values that can only exist in one place 
+    // 
+    // read more about this unique and powerful Cadence feature here https://developers.flow.com/cadence/language/resources
+    pub resource Friendship {
+
+    }
+
+ }
+
+