mastermind

04week/mastermind.js

@@ -8,7 +8,7 @@ const rl = readline.createInterface({
 });
 
 let board = [];
-let solution = '';
+let solution = 'abcd';                                            //set global variable #0
 let letters = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'];
 
 function printBoard() {
@@ -28,13 +28,45 @@ function getRandomInt(min, max) {
   return Math.floor(Math.random() * (max - min)) + min;
 }
 
-function generateHint() {
+function generateHint(guess) {        //pass in guess to generate hint #2
   // your code here
+  let guessArray = guess.split('');                 //create arrays that slit up passed in arguments #2.1
+  let solutionArray = solution.split('');           //create arrays that slit up passed in arguments #2.1
+  let correctLetterLocations = 0;                   //determine correct letter locations #2.2
+  for (let i = 0; i<solutionArray.length; i++) {
+      if (solutionArray[i] == guessArray[i]){
+        correctLetterLocations += 1;
+        solutionArray[i] = null;
+  } 
+}
+let correctLetters = 0;                             //determine correct letters #2.3
+for (let n=0; solutionArray.length > n; n++){
+  let targetIndex = guessArray.indexOf([solutionArray[n]]);
+  if (targetIndex > -1){
+    correctLetters += 1;
+    solutionArray[n] = null;
+  }
+}
+
+let hint = correctLetterLocations + "-" + correctLetters; //determine hint #2.4
+console.log(hint);
+return hint;
 }
 
 function mastermind(guess) {
   solution = 'abcd'; // Comment this out to generate a random solution
   // your code here
+  if (guess === solution) {                       //add guess #3
+    console.log('You guessed it!')                       //if guess is equal to solution then return you guessed it #1
+  } else {
+    generateHint(solution, guess);
+    console.log('try again');
+    board += 1;
+  }
+  if (board.length >= 10) {                       //end game #4
+    console.log('You ran out! The solution was: ${solution}');
+    return;
+  }
 }
 
 
@@ -62,10 +94,10 @@ if (typeof describe === 'function') {
 
   describe('#generateHint()', () => {
     it('should generate hints', () => {
-      assert.equal(generateHint('abdc'), '2-2');
+      assert.equal(generateHint(solution, 'abdc'), '2-2');
     });
     it('should generate hints if solution has duplicates', () => {
-      assert.equal(generateHint('aabb'), '1-1');
+      assert.equal(generateHint(solution, 'aabb'), '1-1');
     });
 
   });