1 files changed, 40 insertions, 0 deletions

diff --git a/Extensions.cs b/Extensions.cs
new file mode 100644
index 0000000..e6368c3
--- /dev/null
+++ b/Extensions.cs
@@ -0,0 +1,40 @@
+using System.Numerics;
+
+namespace OnekoOnline;
+
+static class MathExtensions
+{
+    public static Vector2 LimitLength(this Vector2 toLimit, float lengthLimit)
+    {
+        float length = toLimit.Length();
+        if (toLimit == Vector2.Zero) return Vector2.Zero;
+        return Vector2.Normalize(toLimit) * MathF.Min(length, lengthLimit);
+    }
+
+    public static Vector2 Round(this Vector2 toRound)
+    {
+        return new(MathF.Round(toRound.X), MathF.Round(toRound.Y));
+    }
+}
+
+static class StringExtensions
+{
+    public static string LimitLength(this string value, int maxLength)
+    {
+        if (string.IsNullOrEmpty(value)) return value;
+        return value.Length <= maxLength ? value : value[..maxLength]; 
+    }
+}
+
+public static class Directions
+{
+    public static readonly Vector2 Up = new(0,-1);
+    public static readonly Vector2 Down = new(0,1);
+    public static readonly Vector2 Left = new(-1,0);
+    public static readonly Vector2 Right = new(1,0);
+
+    public static readonly Vector2 UpLeft = Vector2.Normalize(Up+Left);
+    public static readonly Vector2 UpRight = Vector2.Normalize(Up+Right);
+    public static readonly Vector2 DownLeft = Vector2.Normalize(Down+Left);
+    public static readonly Vector2 DownRight = Vector2.Normalize(Down+Right);
+}
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