/*******************************************************************************
        This file is Part of the ZEngine Library for 2D game development.
                   Copyright (C) 2002, 2003 James Turk

                     Licensed under a BSD-style license.

    The maintainer of this library is James Turk (james@conceptofzero.net) 
     and the home of this Library is http://www.zengine.sourceforge.net
*******************************************************************************/

#include <ZEngine.h>
#include <string> 
using namespace std;
using namespace ZE;

void Initialize()
{
    ZEngine *engine = ZEngine::GetInstance();
    ZConfigFile cfg("tests.zcf");
    int w,h,bpp,rate;
    bool fs;
    string title;

    w = cfg.GetInt("ZMusicTest","width",800);
    h = cfg.GetInt("ZMusicTest","height",600);
    bpp = cfg.GetInt("ZMusicTest","bpp",32);
    fs = cfg.GetBool("ZMusicTest","fullscreen",false);
    title = cfg.GetString("ZMusicTest","title","ZMusic Test");
    rate = cfg.GetInt("ZMusicTest","framerate",60);

    engine->SetupDisplay(w,h,bpp,fs);
    engine->CreateDisplay(title);
    engine->SetDesiredFramerate(rate);
}

void Test()
{
    ZEngine *engine = ZEngine::GetInstance();

    ZMusic song("data/music.ogg");
    ZFont font("data/almontew.ttf",48);
    ZImage text[4];

    if(!song.IsLoaded())    //this executes if there is no music.ogg file
    {
        engine->Clear();
        engine->SetupDisplay(800,70,32,false);
        engine->CreateDisplay("ZMusic Test");
        font.DrawText("Music.ogg does not exist, please read music.txt.",text[0]);
        text[0].Draw(0,0);
        engine->Update();
        do
        {
            
            engine->CheckEvents();
            engine->Update();
        } while(!engine->QuitRequested());
    }
    else    //this is the actual example
    {
        font.DrawText("(P)ause\t(U)npause\t(R)ewind",text[0]);
        font.DrawText("(F)ade Out\t(H)alt\t",text[1]);
        font.DrawText("Space - Play\t Up/Down - Control Volume",text[2]);

        song.Play();
        do
        {
            //In the active loop, check events first//
            engine->CheckEvents();
            if(engine->KeyIsPressed(SDLK_ESCAPE))
                engine->RequestQuit();
            if(engine->KeyIsPressed(SDLK_r))
                song.Rewind();
            if(engine->KeyIsPressed(SDLK_p))
                song.Pause();
            if(engine->KeyIsPressed(SDLK_u))
                song.Unpause();
            if(engine->KeyIsPressed(SDLK_f))
                song.Stop(5000);
            if(engine->KeyIsPressed(SDLK_h))
                song.Stop();
            if(engine->KeyIsPressed(SDLK_SPACE))
                song.Play();
            if(engine->KeyIsPressed(SDLK_UP))
                song.SetVolume(song.Volume()+1);
            if(engine->KeyIsPressed(SDLK_DOWN))
                song.SetVolume(song.Volume()-1);


            font.DrawText(FormatStr("Volume: %d",song.Volume()),text[3]);

            engine->Clear();    //clear screen
            for(int i=0; i < 4; i++)
                text[i].Draw(0,i*50.0f);
            engine->Update();    //update the screen
        } while(!engine->QuitRequested());    //quit only when engine has encountered a quit request
    }
}

int main(int argc, char *argv[])
{
    ZEngine *engine = ZEngine::GetInstance();

    Initialize();
    //engine->InitPhysFS(argv[0]);    //remove this line if PhysFS is not available
    Test();

    ZEngine::ReleaseInstance();    //release engine instance
    return 0;
}