static void Main(string[] args)
{
Moon[] moons = new Moon[4];
string[] input = File.ReadAllLines("in.txt");
for (int i = 0; i < input.Length; i++)
{
var trimmed = input[i].Trim('<', '>');
string[] parts = trimmed.Split(',');
int x = System.Convert.ToInt32(parts[0].Split('=')[1]);
int y = System.Convert.ToInt32(parts[1].Split('=')[1]);
int z = System.Convert.ToInt32(parts[2].Split('=')[1]);
moons[i] = new Moon()
{
Position = new Point3D()
{
x = x, y = y, z = z
}, Velocity = new Vector3D()
};
}
List <(int, int)> moonPairs = new List <(int, int)>();
for (int i = 0; i < moons.Length; i++)
{
for (int j = i + 1; j < moons.Length; j++)
{
moonPairs.Add((i, j));
}
}
Console.WriteLine($"After 0 steps");
foreach (var item in moons)
{
Console.WriteLine($"Pos: {item.Position.ToString()}, Velocity: {item.Velocity.ToString()}");
}
int xcycle = 0;
int ycycle = 0;
int zcycle = 0;
HashSet <(int, int, int, int, int, int, int, int)> states = new HashSet <(int, int, int, int, int, int, int, int)>();
for (int i = 0; i < 100000000; i++)
{
if (states.Contains((moons[0].Position.x, moons[1].Position.x, moons[2].Position.x, moons[3].Position.x, moons[0].Velocity.x, moons[1].Velocity.x, moons[2].Velocity.x, moons[3].Velocity.x)) == false)
{
states.Add((moons[0].Position.x, moons[1].Position.x, moons[2].Position.x, moons[3].Position.x, moons[0].Velocity.x, moons[1].Velocity.x, moons[2].Velocity.x, moons[3].Velocity.x));
}
static void Main(string[] args)
{
Moon[] moons = new Moon[4];
string[] input = File.ReadAllLines("in.txt");
for (int i = 0; i < input.Length; i++)
{
var trimmed = input[i].Trim('<', '>');
string[] parts = trimmed.Split(',');
int x = System.Convert.ToInt32(parts[0].Split('=')[1]);
int y = System.Convert.ToInt32(parts[1].Split('=')[1]);
int z = System.Convert.ToInt32(parts[2].Split('=')[1]);
moons[i] = new Moon()
{
Position = new Point3D()
{
x = x, y = y, z = z
}, Velocity = new Vector3D()
};
}
List <(int, int)> moonPairs = new List <(int, int)>();
for (int i = 0; i < moons.Length; i++)
{
for (int j = i + 1; j < moons.Length; j++)
{
moonPairs.Add((i, j));
}
}
for (long i = 0; i < 1500; i++)
{
Console.WriteLine($"After {i} steps");
foreach (var item in moons)
{
Console.WriteLine($"Pos: {item.Position.ToString()}, Velocity: {item.Velocity.ToString()}");
}
if (i == 1000)
{
break;
}
// Find pairs to compare and adjust velocity
foreach (var item in moonPairs)
{
if (moons[item.Item1].Position.x < moons[item.Item2].Position.x)
{
moons[item.Item1].Velocity.x++;
moons[item.Item2].Velocity.x--;
}
else if (moons[item.Item1].Position.x > moons[item.Item2].Position.x)
{
moons[item.Item1].Velocity.x--;
moons[item.Item2].Velocity.x++;
}
if (moons[item.Item1].Position.y < moons[item.Item2].Position.y)
{
moons[item.Item1].Velocity.y++;
moons[item.Item2].Velocity.y--;
}
else if (moons[item.Item1].Position.y > moons[item.Item2].Position.y)
{
moons[item.Item1].Velocity.y--;
moons[item.Item2].Velocity.y++;
}
if (moons[item.Item1].Position.z < moons[item.Item2].Position.z)
{
moons[item.Item1].Velocity.z++;
moons[item.Item2].Velocity.z--;
}
else if (moons[item.Item1].Position.z > moons[item.Item2].Position.z)
{
moons[item.Item1].Velocity.z--;
moons[item.Item2].Velocity.z++;
}
}
// Use velocity to adjust position
for (int bbb = 0; bbb < moons.Length; bbb++)
{
moons[bbb].Position.x += moons[bbb].Velocity.x;
moons[bbb].Position.y += moons[bbb].Velocity.y;
moons[bbb].Position.z += moons[bbb].Velocity.z;
}
}
int kinetic = 0;
// Calc result
foreach (var item in moons)
{
kinetic += (Math.Abs(item.Position.x) + Math.Abs(item.Position.y) + Math.Abs(item.Position.z)) * (Math.Abs(item.Velocity.x) + Math.Abs(item.Velocity.y) + Math.Abs(item.Velocity.z));
}
Console.WriteLine(kinetic);
Console.ReadKey();
}