Add number wrapping utility to coral

source/coral/math.zig

@@ -161,3 +161,12 @@ pub fn min_int(comptime int: std.builtin.Type.Int) comptime_int {
 
     return -(1 << (bit_count - 1));
 }
+
+///
+/// Returns `value` wrapped around the inclusive bounds of `lower` and `upper`.
+///
+pub fn wrap(value: anytype, lower: anytype, upper: anytype) @TypeOf(value, lower, upper) {
+	const range = upper - lower;
+
+	return if (range == 0) lower else lower + @mod((@mod((value - lower), range) + range), range);
+}