From 6855fba90392cad9853845ed741167d4f33a9835 Mon Sep 17 00:00:00 2001
From: dan <dan@lan.hamik.net>
Date: Sat, 12 Dec 2020 01:39:53 -0600
Subject: [PATCH] Working part 1

---
 Advent Of Code Day 12-part1.ps1 | 99 ++++++++++++++++++++++++++++++++-
 1 file changed, 98 insertions(+), 1 deletion(-)

diff --git a/Advent Of Code Day 12-part1.ps1 b/Advent Of Code Day 12-part1.ps1
index 99d8a13..a494e0c 100644
--- a/Advent Of Code Day 12-part1.ps1	
+++ b/Advent Of Code Day 12-part1.ps1	
@@ -5,4 +5,101 @@ $cookie.domain = "adventofcode.com"
 $cookie.Value=$cookievalue
 $websession = new-object Microsoft.PowerShell.Commands.WebRequestSession
 $websession.cookies.add($cookie)
-$inputdata = Invoke-RestMethod -Uri https://adventofcode.com/2020/day/12/input -Method GET -WebSession $websession
+$inputdata = (Invoke-RestMethod -Uri https://adventofcode.com/2020/day/12/input -Method GET -WebSession $websession) -split "\r?\n"
+
+$position = @{
+    XAxis=0;
+    YAxis=0;
+    Facing=@{
+        0="E";
+        1="N";
+        2="W";
+        3="S";
+    };
+    FTurn=0;
+}
+$outerbounds = @{
+    MaxXAxis=0;
+    MinXAxis=0;
+    MaxYAxis=0;
+    MinYAxis=0;
+}
+function Update-Facing (){
+    param(
+        $numberOfTurns
+    )
+    #write-host $numberOfTurns
+    if($numberOfTurns -lt 0){
+        $tempnum = 4 + $numberOfTurns
+        $numberofturns = [math]::abs($tempnum)
+    }
+    $currentfacing = $position.fturn
+    $position.fturn = ($currentfacing + $numberOfTurns) % 4
+}
+function Update-MaxDistance(){
+    #$position
+    if($position.XAxis -gt $outerbounds.MaxXAxis){
+        $outerbounds.MaxXAxis=$position.XAxis
+    }
+    if($position.YAxis -gt $outerbounds.MaxYAxis){
+        $outerbounds.MaxYAxis=$position.YAxis
+    }
+    if($position.XAxis -lt $outerbounds.MinXAxis){
+        $outerbounds.MinXAxis=$position.XAxis
+    }
+    if($position.YAxis -lt $outerbounds.MinYAxis){
+        $outerbounds.MinYAxis=$position.YAxis
+    }
+}
+function Move-Direction(){
+    param(
+        $axis,
+        $distance
+    )
+    if($axis -eq "XAxis"){
+        $position.XAxis += $distance
+    }
+    if($axis -eq "YAxis"){
+        $position.YAxis += $distance
+    }
+}
+foreach($line in $inputdata){
+    if($line -eq ''){continue}
+    $direction = $line.ToCharArray()[0]
+    [int]$distance = $line.ToCharArray()[1..$line.Length] -join ""
+    switch ($direction){
+        "N"{
+            Move-Direction -axis "YAxis" -distance $distance
+        };
+        "S"{
+
+            Move-Direction -axis "YAxis" -distance (-$distance)
+            
+        };
+        "E"{
+            Move-Direction -axis "XAxis" -distance $distance
+        };
+        "W"{
+            Move-Direction -axis "XAxis" -distance (-$distance)
+        };
+        "L"{
+            update-facing -numberOfTurns ($distance/90)
+        };
+        "R"{
+            update-facing -numberOfTurns (-$distance/90)
+        };
+        "F"{
+            if($position.facing[$position.fturn] -eq "N"){
+                Move-Direction -axis "YAxis" -distance $distance
+            } elseif($position.facing[$position.fturn] -eq "S"){
+                Move-Direction -axis "YAxis" -distance (-$distance)
+            } elseif($position.facing[$position.fturn] -eq "E"){
+                Move-Direction -axis "XAxis" -distance $distance
+            } elseif($position.facing[$position.fturn] -eq "W"){
+                Move-Direction -axis "XAxis" -distance (-$distance)
+            }
+        };
+    }
+    Update-MaxDistance   
+}
+[math]::abs($position.XAxis) + [MATH]::abs($position.YAxis)
\ No newline at end of file