First init

_small_exercices/rock_paper_scissors.js

@@ -0,0 +1,69 @@
+const getComputerChoice = () => {
+  const randomValue = Math.floor(Math.random() * 3);
+  switch (randomValue) {
+    case 0 :
+      return "rock";
+    case 1 :
+      return "paper";
+    case 2 :
+      return "scissors";
+  }
+}
+
+const getUserChoice = (userInput) => {
+  userInput ? userInput = userInput.toLowerCase() : userInput = getComputerChoice();
+  switch (userInput) {
+    case "rock" :
+    case "paper" :
+    case "scissors" :
+    case "bomb" :
+      return userInput;  
+    default :
+      console.log('Error: Invalid input. Please choose rock, paper, scissors, or bomb.');
+      return null;
+  }
+}
+
+const determineWinner = (userChoice, computerChoice) => {
+  if (userChoice === computerChoice) {
+    return(`${userChoice} against ${computerChoice}. Tie.`);
+  } else if (userChoice === "bomb") {
+    return(`${userChoice} against ${computerChoice}. The bomb exploded, everything but the user lose.`);
+  } else if (userChoice === "rock") {
+    if (computerChoice === "paper") {
+      return(`${userChoice} against ${computerChoice}. Computer wins.`);
+    } else {
+      return(`${userChoice} against ${computerChoice}. User wins.`);
+    }
+  } else if (userChoice === "paper") {
+    if (computerChoice === "scissors") {
+      return(`${userChoice} against ${computerChoice}. Computer wins.`);
+    } else {
+      return(`${userChoice} against ${computerChoice}. User wins.`);
+    }
+  } else if (userChoice === "scissors") {
+    if (computerChoice === "rock") {
+      return(`${userChoice} against ${computerChoice}. Computer wins.`);
+    } else {
+      return(`${userChoice} against ${computerChoice}. User wins.`);
+    }
+  } 
+}
+
+/*console.log(determineWinner("rock", "scissors"));
+console.log(determineWinner("rock", "paper"));
+console.log(determineWinner("bomb", "rock"));*/
+
+const playGame = (choice) => {
+  const userChoice = getUserChoice(choice);
+  const computerChoice = getComputerChoice();
+
+  console.log(`
+User choose       > ${userChoice}
+Computer choose   > ${computerChoice}
+------------------------------`);
+
+  console.log(determineWinner(userChoice, computerChoice));
+}
+
+playGame(); // type "bomb" to cheat