laTileset.cpp

/*

Jump'n'Run Engine
http://www.atanaslaskov.com/jnr/

BSD LICENSE
Copyright (c) 2007-2013, Atanas Laskov
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL ATANAS LASKOV BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

//
// FILE: laTileset.cpp
//
// Copyright (C) 2007-2013 Atanas Laskov, <latanas@gmail.com>
//
#include "stdafx.h"
#include "Core-Level-JR.h"

laTileset::laTileset(void)
{
    strcpy(_strName, "Empty Tileset");

    _dWaveOffset = 0;
    _dOffset = 0;
}

laTileset::~laTileset(void) {
    discard();
    MLOG("Tileset object deleted");
}

void laTileset::discard()
{
    delete [] _arLitterPools;

    std::vector<laElement>::iterator i;
    for(i=_vElemements.begin(); i!=_vElemements.end(); i++)
        i->discard();
    _vElemements.clear();

    MLOG("Tileset discarded");
}

void laTileset::load(char* strFile)
{
    ERRORLEVEL_BEGIN;
    // Set the tileset pointer, this is used to get globals TS elements
    // TODO: Remove this; Make the TS a porperty list, so rpgAttack and
    // other classes can use the same interface to access global TS elems.
    //
    rpgAttack::_pTS = this;

    progressReset("Loading tileset '%s'...", strFile);

    laFileParser fp;
    char strFilePath[128]=M_DIR_TILESET;
    unsigned i;
    char *strSegBgNames;
    char /*strBackgroundElement[64],*/ junk[128];
    laEnvironment_win32* pCE = ((laEnvironment_win32*)::laSystemIntegrator::getEnvironment());

    // Open the file
    //
    strcat(strFilePath, strFile);
    try{ fp.fileOpen(strFilePath); }
    catch(laError&){ throw laError("Unable to open tileset file '%s'", strFile); }

    // Section "General"
    //
    progressIncrease(0.05, "Loading tileset section 'general'...");

    try{ fp.readSectionSeparator(junk); }
    catch(laError& ){ throw laError("Section separator expected but not found (while parsing '%s')", strFile); }
    _strupr(junk);
    ASSERT(!strcmp(junk, "GENERAL"), "Section [GENERAL] expected", junk);

    fp.readText(_strName);

    // Section "Sky"
    //
    progressIncrease(0.05, "Loading tileset section 'sky'...");

    try{ fp.readSectionSeparator(junk); }
    catch(laError& ){ throw laError("Section separator expected but not found (while parsing '%s')", strFile); }
    _strupr(junk);
    ASSERT(!strcmp(junk, "SKY"), "Section [SKY] expected", junk);

    fp.readObj(&_TilesetSky, M_FALSE);

    //Section "Segment Background"
    //
    progressIncrease(0.05, "Loading tileset section 'segment background'...");

    try{ fp.readSectionSeparator(junk); }
    catch(laError& ){ throw laError("Section separator expected but not found (while parsing '%s')", strFile); }
    _strupr(junk);
    ASSERT(!strcmp(junk, "PER-SEGMENT BACKGROUND"), "Section [PER-SEGMENT BACKGROUND] expected", junk);

    fp.readUnsigned(&_nSegmentBackgroundCount);
    strSegBgNames = new char [_nSegmentBackgroundCount*128];

    for(i=0; i<_nSegmentBackgroundCount; i++)
        fp.readText(strSegBgNames+i*128);

    //Section "Litter Pools"
    //
    progressIncrease(0.05, "Loading tileset section 'litter-pools'...");

    try{ fp.readSectionSeparator(junk); }
    catch(laError&){ throw laError("Section separator expected but not found (while parsing '%s')", strFile); }
    _strupr(junk);
    ASSERT(!strcmp(junk, "LITTER POOLS"), "Section [LITTER POOLS] expected", junk);

    fp.readUnsigned(&_nLitterPoolsCount);
    _arLitterPools = new laLitterPools [_nLitterPoolsCount];

    for(i=0; i<_nLitterPoolsCount; i++)
        fp.readObj(_arLitterPools+i);

    //Start loading tileset elements
    //
    progressIncrease(0.05, "Loading tileset section 'litter-pools'...");

    try{ fp.readSectionSeparator(junk); }
    catch(laError&){ throw laError("Section separator expected but not found (while parsing '%s')", strFile); }
    _strupr(junk);
    ASSERT(!strcmp(junk, "TS INCLUDES"), "Section [TS INCLUDES] expected", junk);

    laFileParser* pfp = NULL;
    _vElemements.clear();

    do {
        char strIncludeFile[128] = "";
        fp.readText(strIncludeFile);

        laFileParser fp_include;

        if( strcmp(strIncludeFile, "END") )
        {
            progressIncrease( 0, "Loading TS INCLUDE '%s'", strIncludeFile);
            fp_include.fileOpen(strIncludeFile);
            pfp = &fp_include;
        }
        else pfp = &fp;

        _readTSIncude(pfp);

    } while( pfp != &fp );


    // Locate background elements
    //
    progressIncrease( M_ABS(0.9-progress()) , "Locating elements...");

    _pLightProperties = getElement( getElementIndex("light") );
    _pFogProperties = getElement( getElementIndex("fog") );
    _pBackgroundProperties = getElement( getElementIndex("global-background") );

    //Locate background segment elements
    //
    for(i=0; i<_nSegmentBackgroundCount; i++)
    {
        _arSegmentBackground[i] = getElementIndex(strSegBgNames+i*128);
        ASSERT(
            _arSegmentBackground[i] < getElementCnt(),
            "Element was requested as segment background but not found",
            strSegBgNames+i*128);
    }
    MLOG("All segment backgrounds located...");

    //Locate tileset Pools elements
    //
    for(i=0; i<_nLitterPoolsCount; i++)
        _arLitterPools[i].setTS(this);

    progressIncrease(0.1, "Tileset loaded.");
    ERRORLEVEL_END;
}

void laTileset::_readTSIncude(laFileParser* pfp)
{
    while(1)
    {
        progressIncrease(0.6/150, "Loading tileset element %d...", _vElemements.size());

        //Load element
        try
        {
            _vElemements.push_back( laElement() );
            (_vElemements.end()-1)->load(pfp);
        }
        catch(laError&  pe)
        {
            ASSERT( !strcmp(pe.getText(), "END"),
                "Corrupted element encountered (%d) \nWhy: %s ",
                (_vElemements.size()-1), pe.getText());

            _vElemements.pop_back();    //Erase last (the "End" tag)
            //MSG("ss3");
            return;
        }
    }
}

unsigned laTileset::getElementIndex(char* strName)
{
    std::vector<laElement>::iterator i;
    unsigned n=0;

    for(i=_vElemements.begin(); i!=_vElemements.end(); i++)
    {
        if( !strcmp(strName, i->name() ) ) return n;
        else n++;
    }

    ASSERT(0, "Element not found in the TS", strName);
}

laElement* laTileset::getElement(unsigned i)
{
    ASSERT(i<=_vElemements.size(), "Invalid element", i);
    return &(_vElemements[i]);
}

unsigned laTileset::getLitterPoolsIndex(char*strName)
{
    for(unsigned i=0; i<_nLitterPoolsCount; i++)
    {
        if(!strcmp(strName, _arLitterPools[i].name()))return i;
    }

    ASSERT(0, "No litter pool with this name", strName);
    //return _nLitterPoolsCount;
}

// Animate TS
//
void laTileset::animate(laTimer &t)
{
    ERRORLEVEL_BEGIN;
    std::vector<laElement>::iterator i;

    //Elements
    for(i=_vElemements.begin(); i!=_vElemements.end(); i++)
        i->animate(t);

    //Wave
    _dWaveOffset += WAVE_SPEED*t.delta();
    _dOffset += t.delta();

    //Sky
    _TilesetSky.animate(t);

    ERRORLEVEL_END;
}