finished part 2 of day 2

aoc/2022/day2/d2c2.js

@@ -0,0 +1,141 @@
+"use strict";
+
+const fs = require("fs");
+const inputText = fs.readFileSync("./input.txt").toString("utf-8");
+const splitInputText = inputText.split("\n");
+
+const splitTestData = `
+A Y
+B X
+C Z
+`.split("\n");
+
+function processData(input) {
+    let currentScore = 0;
+
+    input.forEach((line) => {
+        if (line.length > 0) {
+            //add line check the moves are ABC / XYZ if not skip line
+            const playerOneMove = convertMove(line[0]);
+            const playerTwoMove = calculatePlayerMove(playerOneMove, line[2]);
+            // console.log(playerTwo);
+            const score = calculateScoreForRound(playerOneMove, playerTwoMove);
+
+            currentScore += score;
+        }
+    });
+
+    return currentScore;
+}
+
+/**
+ * [calculatePlayerMove description]
+ *
+ * @param   {String}  playerMove  [playerMove description]
+ * @param   {String}  outcome     [outcome description]
+ *
+ * @return  {String}              [return description]
+ */
+function calculatePlayerMove(playerMove, outcome) {
+    let calculatedMove = "";
+
+    // WIN
+    if (outcome === "Z") {
+        switch (playerMove) {
+            case "rock":
+                calculatedMove = "paper";
+                break;
+            case "paper":
+                calculatedMove = "scissors";
+                break;
+            case "scissors":
+                calculatedMove = "rock";
+                break;
+        }
+    } else if (outcome === "Y") {
+        //DRAW
+        calculatedMove = playerMove;
+    } else if (outcome === "X") {
+        // LOSE
+        switch (playerMove) {
+            case "rock":
+                calculatedMove = "scissors";
+                break;
+            case "paper":
+                calculatedMove = "rock";
+                break;
+            case "scissors":
+                calculatedMove = "paper";
+                break;
+        }
+    }
+
+    return calculatedMove;
+}
+
+/**
+ * [convertMove description]
+ *
+ * @param   {String}  input  [input description]
+ *
+ * @return  {String}         [return description]
+ */
+function convertMove(input) {
+    let move = "";
+
+    let santatizedInput = input.toUpperCase();
+
+    // console.log(santatizedInput);
+    switch (santatizedInput) {
+        case "A":
+        case "X":
+            move = "rock";
+            break;
+        case "B":
+        case "Y":
+            move = "paper";
+            break;
+        case "C":
+        case "Z":
+            move = "scissors";
+            break;
+    }
+
+    return move;
+}
+
+function calculateScoreForRound(playerOneMove, playerTwoMove) {
+    let score = 0;
+    switch (playerTwoMove) {
+        case "rock":
+            score = 1;
+            break;
+        case "paper":
+            score = 2;
+            break;
+        case "scissors":
+            score = 3;
+            break;
+    }
+
+    if (playerOneMove === playerTwoMove) {
+        // draw
+        score += 3;
+    } else if (
+        (playerOneMove === "rock" && playerTwoMove === "scissors") ||
+        (playerOneMove === "paper" && playerTwoMove === "rock") ||
+        (playerOneMove === "scissors" && playerTwoMove === "paper")
+    ) {
+        // loss player 1
+    } else {
+        // win for player 2
+        score += 6;
+    }
+    console.log(`P1: ${playerOneMove}    P2:${playerTwoMove}    = ${score}`);
+
+    return score;
+}
+
+console.log("TestData, Expected 12 got " + processData(splitTestData));
+
+console.log("Real Data, got " + processData(splitInputText));