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Turn ivec2 into lvec2

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Or i64vec2. I expect to get hit by "huge numbers" in the very near future.
This commit is contained in:
Chris Pickett
2022-12-15 15:35:52 -06:00
parent c935f4be4e
commit 70758cf4a9
2 changed files with 21 additions and 21 deletions
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2
src/15.cs
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@ -20,7 +20,7 @@ internal class Day15 : Day
} }
} }
private bool IsReachableFromSensor(ivec2 sensor, int maxDist, ivec2 point) private bool IsReachableFromSensor(ivec2 sensor, long maxDist, ivec2 point)
{ {
return point.ManhattanDistanceTo(sensor) <= maxDist; return point.ManhattanDistanceTo(sensor) <= maxDist;
} }

40
src/Util/Vec2.cs
View File

@ -2,8 +2,8 @@
public struct ivec2 : IEquatable<ivec2>, IComparable<ivec2>, IComparable public struct ivec2 : IEquatable<ivec2>, IComparable<ivec2>, IComparable
{ {
public readonly int x = 0; public readonly long x = 0;
public readonly int y = 0; public readonly long y = 0;
public static readonly ivec2 ZERO = new ivec2(0, 0); public static readonly ivec2 ZERO = new ivec2(0, 0);
public static readonly ivec2 ONE = new ivec2(1, 1); public static readonly ivec2 ONE = new ivec2(1, 1);
@ -15,16 +15,16 @@ public struct ivec2 : IEquatable<ivec2>, IComparable<ivec2>, IComparable
public static readonly ivec2[] FOURWAY = {RIGHT, LEFT, UP, DOWN}; public static readonly ivec2[] FOURWAY = {RIGHT, LEFT, UP, DOWN};
public static readonly ivec2[] EIGHTWAY = {UP, UP + RIGHT, RIGHT, RIGHT + DOWN, DOWN, DOWN + LEFT, LEFT, LEFT + UP}; public static readonly ivec2[] EIGHTWAY = {UP, UP + RIGHT, RIGHT, RIGHT + DOWN, DOWN, DOWN + LEFT, LEFT, LEFT + UP};
public ivec2(int xv, int yv) public ivec2(long xv, long yv)
{ {
x = xv; x = xv;
y = yv; y = yv;
} }
public bool IsZero() => x == 0 && y == 0; public bool IsZero() => x == 0 && y == 0;
public int Sum => x + y; public long Sum => x + y;
public int Product => x * y; public long Product => x * y;
public int MaxElement => System.Math.Max(x, y); public long MaxElement => System.Math.Max(x, y);
public ivec2 GetRotatedLeft() => new ivec2(y, -x); public ivec2 GetRotatedLeft() => new ivec2(y, -x);
public void RotateLeft() => this = GetRotatedLeft(); public void RotateLeft() => this = GetRotatedLeft();
@ -32,12 +32,12 @@ public struct ivec2 : IEquatable<ivec2>, IComparable<ivec2>, IComparable
public ivec2 GetRotatedRight() => new ivec2(-y, x); public ivec2 GetRotatedRight() => new ivec2(-y, x);
public void RotateRight() => this = GetRotatedRight(); public void RotateRight() => this = GetRotatedRight();
public int Dot(ivec2 v) => (x * v.x) + (y * v.y); public long Dot(ivec2 v) => (x * v.x) + (y * v.y);
public int LengthSquared => (x * x) + (y * y); public long LengthSquared => (x * x) + (y * y);
public float Length => MathF.Sqrt(LengthSquared); public float Length => MathF.Sqrt(LengthSquared);
public int ManhattanDistance => Abs(this).Sum; public long ManhattanDistance => Abs(this).Sum;
public int ManhattanDistanceTo(ivec2 other) => System.Math.Abs(x - other.x) + System.Math.Abs(y - other.y); public long ManhattanDistanceTo(ivec2 other) => System.Math.Abs(x - other.x) + System.Math.Abs(y - other.y);
public ivec2 GetBestDirectionTo(ivec2 p) public ivec2 GetBestDirectionTo(ivec2 p)
{ {
@ -58,16 +58,16 @@ public struct ivec2 : IEquatable<ivec2>, IComparable<ivec2>, IComparable
return this + dir; return this + dir;
} }
public int this[int i] => (i == 0) ? x : y; public long this[long i] => (i == 0) ? x : y;
public static ivec2 operator +(ivec2 v) => v; public static ivec2 operator +(ivec2 v) => v;
public static ivec2 operator -(ivec2 v) => new ivec2(-v.x, -v.y); public static ivec2 operator -(ivec2 v) => new ivec2(-v.x, -v.y);
public static ivec2 operator +(ivec2 a, ivec2 b) => new ivec2(a.x + b.x, a.y + b.y); public static ivec2 operator +(ivec2 a, ivec2 b) => new ivec2(a.x + b.x, a.y + b.y);
public static ivec2 operator -(ivec2 a, ivec2 b) => new ivec2(a.x - b.x, a.y - b.y); public static ivec2 operator -(ivec2 a, ivec2 b) => new ivec2(a.x - b.x, a.y - b.y);
public static ivec2 operator *(ivec2 a, ivec2 b) => new ivec2(a.x * b.x, a.y * b.y); public static ivec2 operator *(ivec2 a, ivec2 b) => new ivec2(a.x * b.x, a.y * b.y);
public static ivec2 operator *(int a, ivec2 v) => new ivec2(a * v.x, a * v.y); public static ivec2 operator *(long a, ivec2 v) => new ivec2(a * v.x, a * v.y);
public static ivec2 operator *(ivec2 v, int a) => new ivec2(a * v.x, a * v.y); public static ivec2 operator *(ivec2 v, long a) => new ivec2(a * v.x, a * v.y);
public static ivec2 operator /(ivec2 v, int a) => new ivec2(v.x / a, v.y / a); public static ivec2 operator /(ivec2 v, long a) => new ivec2(v.x / a, v.y / a);
public static bool operator ==(ivec2 a, ivec2 b) => (a.x == b.x) && (a.y == b.y); public static bool operator ==(ivec2 a, ivec2 b) => (a.x == b.x) && (a.y == b.y);
public static bool operator !=(ivec2 a, ivec2 b) => (a.x != b.x) || (a.y != b.y); public static bool operator !=(ivec2 a, ivec2 b) => (a.x != b.x) || (a.y != b.y);
public static bool operator <(ivec2 a, ivec2 b) => (a.x < b.x) && (a.y < b.y); public static bool operator <(ivec2 a, ivec2 b) => (a.x < b.x) && (a.y < b.y);
@ -114,10 +114,10 @@ public struct ivec2 : IEquatable<ivec2>, IComparable<ivec2>, IComparable
public static ivec2 Abs(ivec2 v) => new ivec2(System.Math.Abs(v.x), System.Math.Abs(v.y)); public static ivec2 Abs(ivec2 v) => new ivec2(System.Math.Abs(v.x), System.Math.Abs(v.y));
public static ivec2 Mod(ivec2 val, int den) public static ivec2 Mod(ivec2 val, long den)
{ {
int x = val.x % den; long x = val.x % den;
int y = val.y % den; long y = val.y % den;
if (x < 0) if (x < 0)
{ {
@ -132,13 +132,13 @@ public struct ivec2 : IEquatable<ivec2>, IComparable<ivec2>, IComparable
return new ivec2(x, y); return new ivec2(x, y);
} }
public static int Dot(ivec2 a, ivec2 b) => (a.x * b.x) + (a.y * b.y); public static long Dot(ivec2 a, ivec2 b) => (a.x * b.x) + (a.y * b.y);
public static ivec2 Parse(string s) public static ivec2 Parse(string s)
{ {
string[] parts = s.Split(',', 2); string[] parts = s.Split(',', 2);
int x = int.Parse(parts[0]); long x = long.Parse(parts[0]);
int y = int.Parse(parts[1]); long y = long.Parse(parts[1]);
return new ivec2(x, y); return new ivec2(x, y);
} }