StreamUtility.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using OpenTK;
using GameFormatReader.Common;

namespace SuperBMDLib.Util
{
    public static class StreamUtility
    {
        public static void PadStreamWithString(EndianBinaryWriter writer, int padValue)
        {
            string padding = "Model made with SuperBMD by Gamma.";

            // Pad up to a 32 byte alignment
            // Formula: (x + (n-1)) & ~(n-1)
            long nextAligned = (writer.BaseStream.Length + (padValue - 1)) & ~(padValue - 1);

            long delta = nextAligned - writer.BaseStream.Length;
            writer.BaseStream.Position = writer.BaseStream.Length;
            for (int i = 0; i < delta; i++)
            {
                writer.Write(padding[i]);
            }
        }

        public static void PadStreamWithStringByOffset(EndianBinaryWriter writer, int offset, int padValue)
        {
            string padding = "Model made with SuperBMD by Gamma.";

            // Pad up to a 32 byte alignment
            // Formula: (x + (n-1)) & ~(n-1)
            long nextAligned = (offset + (padValue - 1)) & ~(padValue - 1);

            long delta = nextAligned - offset;
            writer.BaseStream.Position = writer.BaseStream.Length;
            for (int i = 0; i < delta; i++)
            {
                writer.Write(padding[i]);
            }
        }

        public static void PadStreamWithZero(EndianBinaryWriter writer, int padValue)
        {
            // Pad up to a 32 byte alignment
            // Formula: (x + (n-1)) & ~(n-1)
            long nextAligned = (writer.BaseStream.Length + (padValue - 1)) & ~(padValue - 1);

            long delta = nextAligned - writer.BaseStream.Length;
            writer.BaseStream.Position = writer.BaseStream.Length;
            for (int i = 0; i < delta; i++)
            {
                writer.Write((byte)0);
            }
        }

        public static void Write(this EndianBinaryWriter writer, Vector3 vec3)
        {
            writer.Write(vec3.X);
            writer.Write(vec3.Y);
            writer.Write(vec3.Z);
        }

        public static void Write(this EndianBinaryWriter writer, Vector2 vec2)
        {
            writer.Write(vec2.X);
            writer.Write(vec2.Y);
        }

        public static void Write(this EndianBinaryWriter writer, Color color)
        {
            writer.Write((byte)(color.R * 255));
            writer.Write((byte)(color.G * 255));
            writer.Write((byte)(color.B * 255));
            writer.Write((byte)(color.A * 255));
        }

        public static void Write(this EndianBinaryWriter writer, Matrix3x4 mat)
        {
            writer.Write(mat.M11);
            writer.Write(mat.M12);
            writer.Write(mat.M13);
            writer.Write(mat.M14);

            writer.Write(mat.M21);
            writer.Write(mat.M22);
            writer.Write(mat.M23);
            writer.Write(mat.M24);

            writer.Write(mat.M31);
            writer.Write(mat.M32);
            writer.Write(mat.M33);
            writer.Write(mat.M34);
        }

        public static void Write(this EndianBinaryWriter writer, Matrix4 mat)
        {
            writer.Write(mat.M11);
            writer.Write(mat.M12);
            writer.Write(mat.M13);
            writer.Write(mat.M14);

            writer.Write(mat.M21);
            writer.Write(mat.M22);
            writer.Write(mat.M23);
            writer.Write(mat.M24);

            writer.Write(mat.M31);
            writer.Write(mat.M32);
            writer.Write(mat.M33);
            writer.Write(mat.M34);

            writer.Write(mat.M41);
            writer.Write(mat.M42);
            writer.Write(mat.M43);
            writer.Write(mat.M44);
        }
    }
}