#include "SoundEffects.h"

static int StandardsoundBank;
static int EffectSoundBank;
static int BackgroundMusic;
static int NervousMusic;
static int ScreenMusic;
static int LastTime; // Te amount of frames since program activation
static int LastStep; // Needed for step sound

// Loads all the necesarry files
void InitSound()
{
	void *FileData;
	void *vhdata;
	void *vbdata;
	
	
	StandardsoundBank=LoadDefaultWaveTables(); // Standardwavetables
	FileData=LoadFile("SoundData/UpBeat.seq");
	BackgroundMusic=SsSeqOpen(FileData,StandardsoundBank);
	FileData=LoadFile("SoundData/Indust.seq");
	NervousMusic=SsSeqOpen(FileData,StandardsoundBank); // Backgoundmusic read
	FileData=LoadFile("SoundData/Mains.seq");
	ScreenMusic=SsSeqOpen(FileData,StandardsoundBank);
	vbdata=LoadFile("SoundData/Effects.vb");
	vhdata=LoadFile("SoundData/Effects.vh");
	EffectSoundBank=SsVabTransfer(vhdata, vbdata, -1, 1);
	free(vbdata); // In SPU Sound Effects Loaded
	LastTime=VSync(-1); // New images since program activation needed for no result
	LastStep=VSync(-1);  // Amount of images needed for step sound
}

// Plays the music for the main screen
void PlayScreenMusic()
{
	SsSeqPlay(ScreenMusic,SSPLAY_PLAY,SSPLAY_INFINITY);
}

// Plays the normal background music
void PlayBackground()
{
	SsSeqPlay(BackgroundMusic,SSPLAY_PLAY,SSPLAY_INFINITY);
}

// Switches to the more nervous music, when the time gets short
void SwitchToNervous()
{
	SsSeqStop(BackgroundMusic);
	SsSeqPlay(NervousMusic,SSPLAY_PLAY,SSPLAY_INFINITY);
}




// Stops all music
void StopSound()
{
	int i;
	
	for (i=100;i>0;i-=4)
	{
		SsSeqSetVol(BackgroundMusic,i,i);
		SsSeqSetVol(NervousMusic,i,i);
		SsSeqSetVol(ScreenMusic,i,i);
		VSync(0);
	}
	SsSeqStop(BackgroundMusic);
	SsSeqStop(NervousMusic);
	SsSeqStop(ScreenMusic);
	SsSeqSetVol(BackgroundMusic,127,127);
	SsSeqSetVol(NervousMusic,127,127);
	SsSeqSetVol(ScreenMusic,127,127);
}

// Play a step sound, when advanced ahaead
void PlayStep()
{
	int difference;
	int frames;
	
	frames=VSync(-1);
	difference=(frames-LastStep);
	if ((difference>15)||(difference<-15)) // ? wie wird gezaehlt
	{
		SsUtKeyOn(EffectSoundBank, 0, 0, 48, 0, 70, 70);
		LastStep=frames;
	}
}

void PlayLoudStep()
{
	SsUtKeyOn(EffectSoundBank, 0, 0, 48, 0, 140, 140);
}

void DirectStep()
{
	SsUtKeyOn(EffectSoundBank, 0, 0, 48, 0, 70, 70);
}

// Plays a Box Move Sound
void PlayMoveBox()
{
	SsUtKeyOn(EffectSoundBank, 1, 0, 40, 0, 100, 100);
}


void PlayYeah()
{
	SsUtKeyOn(EffectSoundBank,3,0,48,0,128,128);
}

void PlayApplause()
{
	SsUtKeyOn(EffectSoundBank,4,0,35,0,128,128);
}


void PlayBreath()
{
	SsUtKeyOn(EffectSoundBank,5,0,48,0,90,90);
}

// Playd a no result Sound
void PlayNoResult()
{
	int difference;
	int frames;
	
	frames=VSync(-1);
	difference=(frames-LastTime);
	if ((difference>15)||(difference<-15)) // ? wie wird gezaehlt
	{
		SsUtKeyOn(EffectSoundBank, 2, 0, 40, 0, 90, 90);
		LastTime=frames;
	}
}