Pipes - Nkiru - JS Scrabble

scrabble.js

@@ -1,14 +1,158 @@
+const tiles = {
+  'A': 1,
+  'E': 1,
+  'I': 1,
+  'O': 1,
+  'L': 1,
+  'N': 1,
+  'R': 1,
+  'U': 1,
+  'S': 1,
+  'T': 1,
+  'D': 2,
+  'G': 2,
+  'B': 3,
+  'C': 3,
+  'M': 3,
+  'P': 3,
+  'F': 4,
+  'H': 4,
+  'V': 4,
+  'W': 4,
+  'Y': 4,
+  'K': 5,
+  'J': 8,
+  'X': 8,
+  'Q': 10,
+  'Z': 10
+};
+
 const Scrabble = {
   score: function(word) {
-    // TODO: implement score
-  }
+    let regex = /^[a-zA-Z]+$/;
+    let total = 0;
+    let playedWord = word.toUpperCase();
 
-  // TODO: add the highestScoreFrom method
+    if (playedWord.length > 7) {
+      throw new UserException(`Illegal play, ${playedWord.length} exceeds allowed tile count`);
+    }
+
+    if (playedWord === '') {
+      throw new UserException(`Illegal play ${playedWord} contains bad characters`);
+    }
+
+    if (!playedWord.match(regex) ) {
+      throw new UserException('Illegal play, sorry only words allowed');
+    }
+
+    word.toUpperCase().split('').forEach(function(letter) {
+      total = tiles[letter] + total;
+    });
+
+    if (word.length == 7 && total > 0) {
+      total += 50;
+    }
+    return total;
+  },
+
+  highestScoreFrom: function(arrayOfWords) {
+    let max = 0;
+    let highestScoreWord = '';
+
+    if (arrayOfWords.length === 0) {
+      throw new Error('No words to score');
+    } else if (arrayOfWords.length === 1){
+      return arrayOfWords[0];
+    }
+
+    arrayOfWords.forEach(function(word) {
+      let wordScore  = Scrabble.score(word)
+      let wordLength = word.length
+
+      if ( wordScore > max ) {
+        max = wordScore;
+        highestScoreWord = word;
+      } else if ( wordScore === max ) {
+        if ( wordLength === 7 ) {
+          // console.log('HIGHEST ' + highestScoreWord + ' VALUE OF CURRENT WORD ' + word);
+          return highestScoreWord = word;
+        } else if (highestScoreWord.length === 7 ) {
+          // console.log('work ' + highestScoreWord);
+          return highestScoreWord;
+        } else if (wordLength === highestScoreWord.length ) {
+          // console.log('work ' + highestScoreWord);
+          return highestScoreWord;
+        } else if (( wordLength < highestScoreWord.length) && ( wordLength !== 7)) {
+          return highestScoreWord = word;
+        }
+      }
+    });
+    return highestScoreWord;
+  }
+}; // end of Scrabble function
 
-};
 
 Scrabble.Player = class {
-  // TODO: implement the Player class
-};
+  constructor(name) {
+    if (name === undefined) {
+      throw new Error('No argument passed');
+    }
+    this.name = name; // return player's name
+    this.plays = []; // store words played
+  }
 
+  play(word) {
+    let regex = /^[a-zA-Z]+$/;
+
+    if (this.hasWon()) {
+      return false;
+    }
+
+    if ((word === undefined) || (!word.match(regex))) {
+      throw new Error('Invalid word');
+    }
+
+    this.plays.push(word)
+    return this.plays;
+  }
+
+  // totalScore() {
+  //   let total = 0;
+  //   this.plays.forEach(function(playedWord) {
+  //     total += Scrabble.score(playedWord)
+  //   });
+  //   return total;
+  // }
+
+  // arrow function
+  totalScore() {
+    return this.plays.reduce((total, playedWord) => { return total + Scrabble.score(playedWord) }, 0);
+  }
+
+  hasWon() {
+    if (this.totalScore() < 100) {
+      return false;
+    } else {
+      return true;
+    }
+  }
+
+  highestScoringWord() {
+    return Scrabble.highestScoreFrom(this.plays);
+  }
+
+  highestWordScore() {
+    return Scrabble.score(this.highestScoringWord());
+  }
+}; // Scrabble.Player object
+
+// Optional Enhancements
+// Scrabble.TileBag = class {
+//
+// }
 module.exports = Scrabble;
+
+//tests
+// let name = 'Bob';
+// let player = new Scrabble.Player(name);
+// console.log(player.name)

spec/scrabble_spec.js

@@ -60,6 +60,7 @@ describe('highestScoreFrom', function() {
     expect(Scrabble.highestScoreFrom(['pig', 'dog'])).toBe('pig');
   });
 
+
   it ('if tied, prefer a word with 7 letters', function() {
     const loser = 'zzzzzz';
     const winner = 'iiiiddd';
@@ -147,7 +148,7 @@ describe('Player', function() {
       expect(player.plays.length).toBe(1);
     });
   });
-
+//
   describe ('totalScore', function() {
     it ('Is zero if the player has not played anything', function() {
       let player = new Scrabble.Player('test player');