diff --git a/script.js b/script.js
index bbe8a29..e06315b 100644
--- a/script.js
+++ b/script.js
@@ -1,4 +1,124 @@
+//tracker for player score
+var player1Score = 0;
+var player2Score = 0;
+//total score for player
+var totalPlayer1Score = [];
+var totalPlayer2Score = [];
+var totalSumPlayer1 = 0;
+var totalSumPlayer2 = 0;
+//dices for players
+var player1Dice1 = 0;
+var player1Dice2 = 0;
+var player2Dice1 = 0;
+var player2Dice2 = 0;
+
+var gameMode = `player one roll`;
+
 var main = function (input) {
-  var myOutputValue = 'hello world';
-  return myOutputValue;
+  if (gameMode == `player one roll`) {
+    return player1Roll();
+  } else if (gameMode == `player one choose`) {
+    return player1Choose(input);
+  } else if (gameMode == `player two roll`) {
+    return player2Roll();
+  } else if (gameMode == `player two choose`) {
+    return player2Choose(input);
+  } else if (gameMode == `winner`) {
+    return showWinner();
+  } else if (gameMode == `leaderboard`) {
+    return showTotalScore();
+  }
+};
+
+var diceRoll = function () {
+  var randomInteger = Math.ceil(Math.random() * 6);
+  return randomInteger;
+};
+
+var inputNumber = function (input) {
+  if (isNaN(input) || input == ``) {
+    return `<div id="instructions">Oops, you did not enter a number. Please enter a valid number (1 or 2).</div>`;
+  } else {
+    //verifies if input is 1 or 2
+    if (input != 1 || input != 2) {
+      return `<div id="instructions">It looks like you didn't enter 1 or 2. Please select either dice 1 or 2.</div>`;
+    }
+  }
+};
+
+var player1Roll = function () {
+  player1Dice1 = diceRoll();
+  player1Dice2 = diceRoll();
+  gameMode = `player one choose`;
+  return `you have rolled <BR>dice one: ${player1Dice1}<BR>dice two: ${player1Dice2} <BR><BR>which dice would you like to place infront`;
+};
+
+var player1Choose = function (input) {
+  if (input == `1`) {
+    gameMode = `player two roll`;
+    player1Score = player1Dice1 * 10 + player1Dice2;
+    totalPlayer1Score.push(player1Score);
+    return `player 1 your score is ${player1Score} <BR>player 2 turn to roll`;
+  } else if (input == `2`) {
+    gameMode = `player two roll`;
+    player1Score = player1Dice2 * 10 + player1Dice1;
+    totalPlayer1Score.push(player1Score);
+    return `player 1 your score is ${player1Score} <BR>player 2 turn to roll`;
+  } else {
+    return inputNumber(input);
+  }
+};
+
+var player2Roll = function () {
+  player2Dice1 = diceRoll();
+  player2Dice2 = diceRoll();
+  gameMode = `player two choose`;
+  return `you have rolled <BR>dice one: ${player2Dice1}<BR>dice two: ${player2Dice2} <BR><BR>which dice would you like to place infront`;
+};
+
+var player2Choose = function (input) {
+  if (input == `1`) {
+    gameMode = `winner`;
+    player2Score = player2Dice1 * 10 + player2Dice2;
+    totalPlayer2Score.push(player2Score);
+    return `player 2 your score is ${player2Score} `;
+  } else if (input == `2`) {
+    gameMode = `winner`;
+    player2Score = player2Dice2 * 10 + player2Dice1;
+    totalPlayer2Score.push(player2Score);
+    return `player 2 your score is ${player2Score} `;
+  } else {
+    return inputNumber(input);
+  }
+};
+
+var showWinner = function () {
+  if (player1Score < player2Score) {
+    gameMode = `leaderboard`;
+    return `player1 score: ${player1Score}<BR>player2 score: ${player2Score}<BR><BR>player 2 won!`;
+  } else if (player1Score > player2Score) {
+    gameMode = `leaderboard`;
+    return `player1 score: ${player1Score}<BR>player2 score: ${player2Score}<BR><BR>player 1 won!`;
+  }
+};
+
+var showTotalScore = function () {
+  totalSumPlayer1 = 0;
+  totalSumPlayer2 = 0;
+  for (a = 0; a < totalPlayer1Score.length; a++) {
+    totalSumPlayer1 += totalPlayer1Score[a];
+    console.log(totalPlayer1Score);
+  }
+  for (b = 0; b < totalPlayer2Score.length; b++) {
+    totalSumPlayer2 += totalPlayer2Score[b];
+    console.log(totalPlayer2Score);
+  }
+  if (totalSumPlayer1 > totalSumPlayer2) {
+    gameMode = `player one roll`;
+    return `player 1 is leading! <BR>player 1 has a total score of: ${totalSumPlayer1}<BR>player 2 has a total score of: ${totalSumPlayer2} <BR><BR>past rolls <BR>player 1 : ${totalPlayer1Score}<BR>player 2 : ${totalPlayer2Score} `;
+  }
+  if (totalSumPlayer1 < totalSumPlayer2) {
+    gameMode = `player one roll`;
+    return `player 2 is leading! <BR>player 1 has a total score of: ${totalSumPlayer1}<BR>player 2 has a total score of: ${totalSumPlayer2} <BR><BR>past rolls <BR>player 1 : ${totalPlayer1Score}<BR>player 2 : ${totalPlayer2Score}`;
+  }
 };