// --------------------------------------------------------------------------
//
// Copyright (c) 2003 Thomas D. Marsh. All rights reserved.
//
// "SSC" is free software; you can redistribute it
// and/or use it and/or modify it under the terms of
// the "GNU General Public License" (GPL).
//
// --------------------------------------------------------------------------
//
// This code is taken (slightly modified) from Chromium BSU and is Copyright
// (c) 2000 Mark B. Allan. See the Chromium website at:
//
//      http://www.reptilelabour.com/software/chromium/


#include "audio.h"
#include "common.h"
#include "config.h"


// ---------------------------------------------------------------------------

Audio::Audio()
{
	fileNames[UNUSED] = "/usr/local/share/ssc/unused.wav";
	fileNames[BOOM] = "/usr/local/share/ssc/boom.wav";
	fileNames[EXPLOSION] = "/usr/local/share/ssc/exploBig.wav";
	fileNames[EXPLO_POP] = "/usr/local/share/ssc/exploPop.wav";
	fileNames[LIFE_ADD] = "/usr/local/share/ssc/life_add.wav";
	fileNames[LIFE_LOSE] = "/usr/local/share/ssc/life_lose.wav";
	fileNames[POWER] = "/usr/local/share/ssc/power.wav";
	fileNames[MUSIC_GAME] = "/usr/local/share/ssc/trance.wav";
}

Audio::~Audio()
{
}

void Audio::update()
{
}

void Audio::playSound(SoundType, float *, int)
{
}

void Audio::initSound()
{
}

void Audio::setSoundVolume(float)
{
}


// ---------------------------------------------------------------------------

SoundInfo::SoundInfo()
{
	type = Audio::EXPLOSION;
	pos[0] = 0.0;
	pos[1] = 0.0;
	pos[2] = 0.0;
	age = 1;
	back = next = 0;
}

SoundInfo::SoundInfo(Audio::SoundType t, float p[3], int a)
{
	type = t;
	pos[0] = p[0];
	pos[1] = p[1];
	pos[2] = p[2];
	age = a;
	back = next = 0;
}


// ---------------------------------------------------------------------------

AudioSDLMixer::AudioSDLMixer()
	: Audio()
{
	initSound();
}

AudioSDLMixer::~AudioSDLMixer()
{
	for (int i = 0; i < NUM_SOUND_TYPES; i++)
		Mix_FreeChunk(sounds[i]);
	Mix_CloseAudio();
}

void AudioSDLMixer::initSound()
{
	Config *conf = Config::getInstance();

	if (!conf->playSound() && !conf->playMusic())
		return;

	if (Mix_OpenAudio(22050, AUDIO_S16, 2, 512) < 0)
	{
		fprintf(stderr,
			"Could not initialize SDL mixer: %s\n",
			SDL_GetError());
		exit(1);
	}

	for (int i = 0; i < NUM_SOUND_TYPES; i++)
		sounds[i] = Mix_LoadWAV(fileNames[i]);

	Mix_ReserveChannels(1);
	Mix_PlayChannel(0, sounds[MUSIC_GAME], -1);

	if (conf->playMusic())
		Mix_Volume(0, (int) (MIX_MAX_VOLUME*conf->musicVol()));
	else
		Mix_Volume(0, 0);

	// atexit(Mix_CloseAudio);
}

void AudioSDLMixer::playSound(SoundType type, float pos[3], int)
{
	if (Config::getInstance()->playSound())
		Mix_PlayChannel(-1, sounds[type], 0);
}

void AudioSDLMixer::setSoundVolume(float value)
{
	if (Config::getInstance()->playSound())
		for (int i = 1; i < MIX_CHANNELS; i++)
			Mix_Volume(i, (int) (MIX_MAX_VOLUME*value));
}