using System;
using System.Runtime.InteropServices;

enum EMusicAffiliation {Menu, Action, NoAction, Win, Lose, Credits};

class SoundEngine //Version: 19.3.2007
{
    /*NOTE: 
     * (for detail information see "SoundEngine.rtf")
     * 
     * MusicAffiliation-values:
     *      0 = Menu
     *      1 = Action
     *      2 = NoAction
     *      3 = Win
     *      4 = Lose
     *      5 = Credits
     * 	    n>5 = (free)
     * 
     * Volume-Datawidth:
     *      0..100
     * 
     * Balance-Datawidth:
     *      -100..100
     * 
     * ChannelCount:
     *      min: 2
     *      def: 16
     * 
     * SetNoiseParams(...) function return value:
     *      0 means ok
     *      -1 means error while assigning volume
     *      -2 means error while assigning balance
     *      -3 means parameter "ChannelID" was out of bounds
     * */

    //#############################custom functions#####################################
    [DllImport("SoundEngine.dll")]
    public static extern void DestroyEngine();

    [DllImport("SoundEngine.dll")]
    public static extern string GetDeviceInfo();

    [DllImport("SoundEngine.dll")]
    public static extern string GetVersion();

    [DllImport("SoundEngine.dll")]
    public static extern void ShowVersionDialog();

    [DllImport("SoundEngine.dll")]
    public static extern void SetTotalVolume(int Volume);

    [DllImport("SoundEngine.dll")]
    public static extern int GetTotalVolume();

    [DllImport("SoundEngine.dll")]
    public static extern void SetChannelCount(int Count);

    [DllImport("SoundEngine.dll")]
    public static extern int GetChannelCount();

    [DllImport("SoundEngine.dll")]
    public static extern void StopAll();

    [DllImport("SoundEngine.dll")]
    public static extern void FadeOutAll(int FadeSeconds);
    
//#############################noise functions#####################################
    [DllImport("SoundEngine.dll")]
    public static extern int PreloadNoise(string FileName);

    [DllImport("SoundEngine.dll")]
    public static extern int PlayNoise(int PreloadID, bool Loop, ref uint SoundPlayID);

    [DllImport("SoundEngine.dll")]
    public static extern int SetNoiseParams(uint SoundPlayID, int Volume, int Balance);

    [DllImport("SoundEngine.dll")]
    public static extern int SetNoiseParamsEx(uint SoundPlayID, int Distance, int Angle);

    [DllImport("SoundEngine.dll")]
    public static extern void SetMaxDistance(int Distance);

    [DllImport("SoundEngine.dll")]
    public static extern int GetMaxDistance();

    [DllImport("SoundEngine.dll")]
    public static extern void StopNoise(uint SoundPlayID);

    [DllImport("SoundEngine.dll")]
    public static extern void StopAllNoises();

    [DllImport("SoundEngine.dll")]
    public static extern int FadeOutNoise(uint SoundPlayID, int FadeSeconds);

    [DllImport("SoundEngine.dll")]
    public static extern void FadeOutAllNoises(int FadeSeconds);

    [DllImport("SoundEngine.dll")]
    public static extern void SetNoiseVariation(bool Value);

    [DllImport("SoundEngine.dll")]
    public static extern bool GetNoiseVariation();

    [DllImport("SoundEngine.dll")]
    public static extern void SetNoiseTransponation(bool Value);

    [DllImport("SoundEngine.dll")]
    public static extern bool GetNoiseTransponation();

    [DllImport("SoundEngine.dll")]
    public static extern void SetNoisesVolume(int Volume);

    [DllImport("SoundEngine.dll")]
    public static extern int GetNoisesVolume();

//#############################music functions#####################################
    [DllImport("SoundEngine.dll")]
    public static extern int RegisterMusicFile(string MusicFile, EMusicAffiliation MusicAffiliation);

    [DllImport("SoundEngine.dll")]
    public static extern int StartMusic(EMusicAffiliation MusicAffiliation);

    [DllImport("SoundEngine.dll")]
    public static extern void SetMusicVolume(int Volume);

    [DllImport("SoundEngine.dll")]
    public static extern int GetMusicVolume();

    [DllImport("SoundEngine.dll")]
    public static extern void SetShuffleMusicTracks(bool Shuffle);

    [DllImport("SoundEngine.dll")]
    public static extern bool GetShuffleMusicTracks();

    [DllImport("SoundEngine.dll")]
    public static extern void StopMusic();

    [DllImport("SoundEngine.dll")]
    public static extern void FadeOutMusic(int FadeSeconds);

    [DllImport("SoundEngine.dll")]
    public static extern string GetCurrentTrack();

    [DllImport("SoundEngine.dll")]
    public static extern EMusicAffiliation GetCurrentAffiliation();

    [DllImport("SoundEngine.dll")]
    public static extern int GetTrackTotalSecs();

    [DllImport("SoundEngine.dll")]
    public static extern int GetTrackCurrSecs();

    [DllImport("SoundEngine.dll")]
    public static extern string SecsToTimeStr(int Secs);

	[DllImport("SoundEngine.dll")]
    [return:MarshalAs(UnmanagedType.LPArray, SizeConst=8)]
    public static extern byte[] GetFFTData(ref int total);

	[DllImport("SoundEngine.dll")]
    public static extern string GetFFTData2(ref int total);

    [DllImport("SoundEngine.dll")]
    public static extern void GetFFTDataEx([MarshalAs(UnmanagedType.LPArray, SizeConst=8)] out byte[] FFTData, out int total);
    
//    [DllImport("SoundEngine.dll")]
//    public static extern void NextTrack();

}