From af9dc24f0a53aa48383d8289033aa37a567b4749 Mon Sep 17 00:00:00 2001
From: Rutherther <fandabohacek@gmail.com>
Date: Fri, 18 Feb 2022 23:23:50 +0100
Subject: [PATCH] feat(game): add position operators

---
 Core/NosSmooth.Game/Data/Info/Position.cs | 70 ++++++++++++++++++++++-
 1 file changed, 68 insertions(+), 2 deletions(-)

diff --git a/Core/NosSmooth.Game/Data/Info/Position.cs b/Core/NosSmooth.Game/Data/Info/Position.cs
index da8268b..af727e8 100644
--- a/Core/NosSmooth.Game/Data/Info/Position.cs
+++ b/Core/NosSmooth.Game/Data/Info/Position.cs
@@ -11,9 +11,20 @@ namespace NosSmooth.Game.Data.Info;
 /// <summary>
 /// Represents nostale position on map.
 /// </summary>
-[SuppressMessage("StyleCop.CSharp.NamingRules", "SA1313", MessageId = "Parameter names should begin with lower-case letter", Justification = "Standard.")]
-public record struct Position(long X, long Y)
+[SuppressMessage
+(
+    "StyleCop.CSharp.NamingRules",
+    "SA1313",
+    MessageId = "Parameter names should begin with lower-case letter",
+    Justification = "Standard."
+)]
+public record struct Position(short X, short Y)
 {
+    /// <summary>
+    /// Gets the zero position.
+    /// </summary>
+    public static Position Zero => new Position(0, 0);
+
     /// <summary>
     /// Get the squared distance to the given position.
     /// </summary>
@@ -23,4 +34,59 @@ public record struct Position(long X, long Y)
     {
         return ((position.X - X) * (position.X - X)) + ((position.Y - Y) * (position.Y - Y));
     }
+
+    /// <summary>
+    /// Gets whether the given position is in the given range.
+    /// </summary>
+    /// <param name="position">The position.</param>
+    /// <param name="range">The range.</param>
+    /// <returns>Whether the position is in the range.</returns>
+    public bool IsInRange(Position position, float range)
+    {
+        return DistanceSquared(position) <= range * range;
+    }
+    
+    /// <summary>
+    /// Multiply position.
+    /// </summary>
+    /// <param name="left">The left position.</param>
+    /// <param name="right">The right position.</param>
+    /// <returns>The multiplied position.</returns>
+    public static Position operator *(short left, Position right)
+    {
+        return new Position((short)(left * right.X), (short)(left * right.Y));
+    }
+
+    /// <summary>
+    /// Multiply position.
+    /// </summary>
+    /// <param name="left">The left position.</param>
+    /// <param name="right">The right position.</param>
+    /// <returns>The multiplied position.</returns>
+    public static Position operator *(double left, Position right)
+    {
+        return new Position((short)(left * right.X), (short)(left * right.Y));
+    }
+
+    /// <summary>
+    /// Add two positions.
+    /// </summary>
+    /// <param name="left">The left position.</param>
+    /// <param name="right">The right position.</param>
+    /// <returns>The added position.</returns>
+    public static Position operator +(Position left, Position right)
+    {
+        return new Position((short)(left.X + right.X), (short)(left.Y + right.Y));
+    }
+
+    /// <summary>
+    /// Subtract two positions.
+    /// </summary>
+    /// <param name="left">The left position.</param>
+    /// <param name="right">The right position.</param>
+    /// <returns>The subtracted position.</returns>
+    public static Position operator -(Position left, Position right)
+    {
+        return new Position((short)(left.X - right.X), (short)(left.Y - right.Y));
+    }
 }
\ No newline at end of file
-- 
2.49.0