src/prob2/mod.rs

@@ -1,16 +1,10 @@
-#[derive(PartialEq, Eq)]
+#[repr(u8)]
 pub enum Play {
     Rock,
     Paper,
     Scissors,
 }
 
-enum ResultPlay {
-    Win,
-    Draw,
-    Loss,
-}
-
 impl Into<char> for Play {
     fn into(self) -> char {
         match self {
@@ -31,27 +25,12 @@ impl Into<i32> for Play {
     }
 }
 
-impl From<char> for Play {
-    fn from(letter: char) -> Self {
-        match letter {
-            'A' => Play::Rock,
-            'B' => Play::Paper,
-            'C' => Play::Scissors,
-            'X' => Play::Rock,
-            'Y' => Play::Paper,
-            'Z' => Play::Scissors,
-            _ => panic!("Only A, B, C, X, Y or Z letters are available."),
-        }
-    }
-}
-
-impl Into<i32> for ResultPlay {
-    fn into(self) -> i32 {
-        match self {
-            ResultPlay::Win => 6,
-            ResultPlay::Draw => 3,
-            ResultPlay::Loss => 0,
-        }
+pub fn translate(letter: char) -> Option<Play> {
+    match letter {
+        'A' => Some(Play::Rock),
+        'B' => Some(Play::Paper),
+        'C' => Some(Play::Scissors),
+        _ => None,
     }
 }