From 3caf6c8bfb3f7f5cf91530793d31576696624852 Mon Sep 17 00:00:00 2001
From: Patrick Jakobsen <97399891+Pallepadehat@users.noreply.github.com>
Date: Wed, 20 May 2026 14:08:30 +0300
Subject: [PATCH] Update CaesarCipher.swift

---
 .../caesar-cipher/CaesarCipher.swift          | 47 ++++++++++++-------
 1 file changed, 29 insertions(+), 18 deletions(-)

diff --git a/5-arrays-and-sets/caesar-cipher/CaesarCipher.swift b/5-arrays-and-sets/caesar-cipher/CaesarCipher.swift
index 2c2ee5f..447db3b 100644
--- a/5-arrays-and-sets/caesar-cipher/CaesarCipher.swift
+++ b/5-arrays-and-sets/caesar-cipher/CaesarCipher.swift
@@ -1,25 +1,36 @@
 // Caesar Cipher 🏛
-// Sonny Li
+// Patrick Jakobsen
 
-var alphabet: [Character] = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"]
-
-var secretMessage = "Codecademy".lowercased()
-
-var message = Array(secretMessage)
-
-for i in 0 ..< message.count {
-  
-  for j in 0 ..< alphabet.count {
+struct CaesarCipher {
     
-    if message[i] == alphabet[j] {
-        
-      message[i] = alphabet[(j+3) % 26]
-      break
-      
+    private let shift: Int
+    
+    init(shift: Int = 3) {
+        self.shift = shift
     }
     
-  }
-  
+    func encrypt(_ text: String) -> String {
+        let lowercaseText = text.lowercased()
+        
+        return String(
+            lowercaseText.map { character in
+                
+                guard let ascii = character.asciiValue else {
+                    return character
+                }
+                
+                let shifted = ((Int(ascii) - 97 + shift) % 26) + 97
+                
+                return Character(UnicodeScalar(shifted)!)
+            }
+        )
+    }
 }
 
-print(message)
+// Example
+
+let cipher = CaesarCipher()
+
+let encryptedMessage = cipher.encrypt("Codecademy")
+
+print(encryptedMessage) // frghfdghpb