[Mono] Improve Mathf

1 files changed, 39 insertions, 0 deletions

diff --git a/modules/mono/glue/cs_files/MathfEx.cs b/modules/mono/glue/cs_files/MathfEx.cs
new file mode 100644
index 000000000..739b7fb56
--- /dev/null
+++ b/modules/mono/glue/cs_files/MathfEx.cs
@@ -0,0 +1,39 @@
+using System;
+
+#if REAL_T_IS_DOUBLE
+using real_t = System.Double;
+#else
+using real_t = System.Single;
+#endif
+
+namespace Godot
+{
+    public static partial class Mathf
+    {
+        // Define constants with Decimal precision and cast down to double or float.
+
+        public const real_t E = (real_t) 2.7182818284590452353602874714M; // 2.7182817f and 2.718281828459045
+        public const real_t Sqrt2 = (real_t) 1.4142135623730950488016887242M; // 1.4142136f and 1.414213562373095
+
+#if REAL_T_IS_DOUBLE
+        public const real_t Epsilon = 1e-14; // Epsilon size should depend on the precision used.
+#else
+        public const real_t Epsilon = 1e-06f;
+#endif
+
+        public static int CeilToInt(real_t s)
+        {
+            return (int)Math.Ceiling(s);
+        }
+
+        public static int FloorToInt(real_t s)
+        {
+            return (int)Math.Floor(s);
+        }    
+
+        public static int RoundToInt(real_t s)
+        {
+            return (int)Math.Round(s);
+        }
+    }
+}
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