DaFile.h

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/*
 * Copyright (C) 2022 The V-Gears Team
 *
 * This file is part of V-Gears
 *
 * V-Gears is free software: you can redistribute it and/or modify it under
 * terms of the GNU General Public License as published by the Free Software
 * Foundation, version 3.0 (GPLv3) of the License.
 *
 * V-Gears is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 */
 
#pragma once
 
#include <vector>
#include "common/File.h"
#include "common/TypeDefine.h"
 
class DaFile{
 
    public:
 
        DaFile(File file);
 
        std::vector<std::string> GenerateAFiles(std::string model_id, std::string path);
 
    private:
 
        static const float OFFSET_SCALE;
 
        struct TriValue{
 
            char16_t s_x;
 
            char16_t s_y;
 
            char16_t s_z;
 
            int i_x;
 
            int i_y;
 
            int i_z;
 
            float f_x;
 
            float f_y;
 
            float f_z;
        };
 
        struct Frame{
 
            TriValue offset;
 
            std::vector<TriValue> bones;
        };
 
        struct Animation{
 
            u32 bone_count;
 
            u32 frame_count;
 
            u32 size;
 
            u8 key;
 
            std::vector<Frame> frames;
        };
 
        static int ExtendSignInteger(int val, int len);
 
        static int GetSignExtendedShort(int val, int len);
 
        void Read();
 
        Animation ReadAnimation();
 
        Frame ReadFirstFrame(u32 bones, u8 key);
 
        Frame ReadFrame(u32 bones, u8 key, Frame prev);
 
        int GetDynamicOffsetFromStream();
 
        int GetBitsU(int bits);
 
        int GetBitsS(int bits);
 
        int GetCompressedDeltaFromStream(int lowered_precision_bits);
 
        File da_file_;
 
        u8* da_bytes_;
 
        std::vector<Animation> animations_;
 
        u32 bit_offset_;
 
};