Solved Day 13 (Today theres only one Solution, bc you can jsut read the first int out of the Console for P1)

Author: Seralius

Diff for: 13/Part1.js

@@ -0,0 +1,78 @@
+const fs = require('fs')
+
+var Rawinput = fs.readFileSync("input.txt").toString('utf-8')
+input = Rawinput.split("\r\n");
+function Run() {
+    var x, y = 0;
+    var maxx, maxy = 0;
+    var Matrix = [];
+    input.forEach(element => {
+        if (!element.includes("fold") && element != '') {
+            var xy = element.split(",").map(Number);
+            x = x > xy[0] ? x : xy[0];
+            y = y > xy[1] ? y : xy[1];
+        }
+    });
+    maxx = x;
+    maxy = y;
+    var Matrix = new Array(y + 1);
+    for (var i = 0; i < y + 1; i++) {
+        Matrix[i] = new Array(x + 1).fill(0);
+    }
+    var foldingTime = false;
+    input.forEach(element => {
+        foldingTime = !foldingTime ? element == '' : foldingTime;
+        if (!foldingTime) {
+            var xy = element.split(",").map(Number);
+            Matrix[xy[1]][xy[0]] = 1;
+        }
+        else if (element != '') {
+            if (element.startsWith("fold along y")) {
+                var num = element.match(/(?<==)\d+/);
+                for (let i = maxy; i > num; i--) {
+                    const line = Matrix[i];
+                    var Supposed = Matrix[maxy - i];
+                    for (let j = 0; j < line.length; j++) {
+                        if (line[j] == 1) {
+                            Supposed[j] = 1;
+                        }
+                    }
+                }
+                maxy = num - 1;
+            }
+            else if (element.startsWith("fold along x")) {
+                var num = element.match(/(?<==)\d+/);
+                for (let i = maxx; i > num; i--) {
+                    Matrix.forEach(line => {
+                        if (line[i] == 1) {
+                            line[maxx - i] = 1;
+                        }
+                    });
+                }
+                maxx = num - 1;
+            }
+            LogMatrix(Matrix, maxx, maxy);
+        }
+    });
+}
+function LogMatrix(Matrix, maxx, maxy) {
+    var String = "";
+    var count = 0;
+    for (let i = 0; i < maxy + 1; i++) {
+        for (let j = 0; j < maxx + 1; j++) {
+            String += Matrix[i][j] == 1 ? "#" : " ";
+            count += Matrix[i][j] == 1 ? 1 : 0;
+        }
+        String += "\n";
+    }
+    console.log(String);
+    console.log(count);
+}
+module.exports = Run;
+//Start timer
+var startTime = new Date().getTime();
+Run();
+//End timer
+var endTime = new Date().getTime();
+var timeTaken = endTime - startTime;
+console.log("Time taken: " + timeTaken + "ms");