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Day 12 - Part 1

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Chris Kaczor
2019-12-12 19:16:59 -05:00
parent d597aec61e
commit 6c43ae6078
3 changed files with 119 additions and 1 deletions
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1
Advent.csproj.DotSettings
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@@ -2,6 +2,7 @@
<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=day1/@EntryIndexedValue">True</s:Boolean>
<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=day10/@EntryIndexedValue">True</s:Boolean>
<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=day11/@EntryIndexedValue">True</s:Boolean>
<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=day12/@EntryIndexedValue">True</s:Boolean>
<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=day2/@EntryIndexedValue">True</s:Boolean>
<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=day3/@EntryIndexedValue">True</s:Boolean>
<s:Boolean x:Key="/Default/CodeInspection/NamespaceProvider/NamespaceFoldersToSkip/=day4/@EntryIndexedValue">True</s:Boolean>

116
Day12/Day12.cs Normal file
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@@ -0,0 +1,116 @@
using System;
using System.Collections.Generic;
namespace Advent
{
public static class Day12
{
private class Coordinates
{
public Coordinates(int x, int y, int z)
{
X = x;
Y = y;
Z = z;
}
public int X { get; set; }
public int Y { get; set; }
public int Z { get; set; }
}
private class Moon
{
public Moon(int x, int y, int z)
{
Position = new Coordinates(x, y, z);
Velocity = new Coordinates(0, 0, 0);
}
public Coordinates Position { get; }
public Coordinates Velocity { get; }
}
public static void Execute()
{
/*
<x=-4, y=-9, z=-3>
<x=-13, y=-11, z=0>
<x=-17, y=-7, z=15>
<x=-16, y=4, z=2>
*/
var moons = new List<Moon>
{
new Moon(-4, -9, -3) ,
new Moon(-13, -11, 0),
new Moon(-17, -7, 15 ),
new Moon(-16, 4, 2 )
};
for (var count = 1; count <= 1000; count++)
{
for (var a = 0; a <= 3; a++)
{
for (var b = a + 1; b <= 3; b++)
{
var moonA = moons[a];
var moonB = moons[b];
if (moonA.Position.X > moonB.Position.X)
{
moonB.Velocity.X++;
moonA.Velocity.X--;
}
else if (moonA.Position.X < moonB.Position.X)
{
moonA.Velocity.X++;
moonB.Velocity.X--;
}
if (moonA.Position.Y > moonB.Position.Y)
{
moonB.Velocity.Y++;
moonA.Velocity.Y--;
}
else if (moonA.Position.Y < moonB.Position.Y)
{
moonA.Velocity.Y++;
moonB.Velocity.Y--;
}
if (moonA.Position.Z > moonB.Position.Z)
{
moonB.Velocity.Z++;
moonA.Velocity.Z--;
}
else if (moonA.Position.Z < moonB.Position.Z)
{
moonA.Velocity.Z++;
moonB.Velocity.Z--;
}
}
}
foreach (var moon in moons)
{
moon.Position.X += moon.Velocity.X;
moon.Position.Y += moon.Velocity.Y;
moon.Position.Z += moon.Velocity.Z;
}
}
var totalEnergy = 0;
foreach (var moon in moons)
{
var potentialEnergy = Math.Abs(moon.Position.X) + Math.Abs(moon.Position.Y) + Math.Abs(moon.Position.Z);
var kineticEnergy = Math.Abs(moon.Velocity.X) + Math.Abs(moon.Velocity.Y) + Math.Abs(moon.Velocity.Z);
totalEnergy += (potentialEnergy * kineticEnergy);
}
Console.WriteLine(totalEnergy);
}
}
}

3
Program.cs
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@@ -14,7 +14,8 @@
//Day8.Execute();
//Day9.Execute();
//Day10.Execute();
Day11.Execute();
//Day11.Execute();
Day12.Execute();
}
}
}