fxMessages.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.

*/

#include "stdafx.h"
#include "Core.h"

// Add a new message
//
void fxMessages::add(double dSizeMultiplier, laColor rgb, char* str, ...)
{
    // Format text
    //
    va_list     ap;
    char text[256];

    if (!str) return;
    va_start(ap, str);
    vsnprintf(text, 255, str, ap);
    va_end(ap);

    // Format message
    //
    _laFxMessage msg(text, rgb, dSizeMultiplier);

    if( !_ttDelay.isElapsed() )
    {
        msg.bDelay = M_TRUE;
    }
    _ttDelay.reset();

    // See if there is already an expired message
    //
    std::vector<_laFxMessage>::iterator i;

    for(i=_vMessages.begin(); i!=_vMessages.end(); i++)
    {
        double prog = (i->dPassedTime)/_dDispalcementTime;

        if( (prog < 0.5) && (!strcmp(i->str, text)))
        {
            // Duplicate message
            //
            i->nx++;
            return;
        }
        else if( prog > 1 )
        {
            // Reset the expired message
            //
            strcpy(i->str, msg.str);
            i->dPassedTime  = msg.dPassedTime;
            i->rgbColor = msg.rgbColor;
            i->dSizeMultiplier = msg.dSizeMultiplier;
            i->bDelay   = msg.bDelay;
            i->nx = 1;
            return;
        }
    }

    // Allocate memory for a new message
    _vMessages.push_back( msg );

}

// Animate messages
//
void fxMessages::animate(laTimer &t)
{
    M_BOOL bOneUnblocked = M_FALSE;

    // Try to unblcok one message
    std::vector<_laFxMessage>::iterator i;
    for(i=_vMessages.begin(); i!=_vMessages.end(); i++)
    {
        if( (i->bDelay) && (i->dPassedTime >= _ttDelay.getElapseTime()) )
        {
                bOneUnblocked = M_TRUE;
                i->bDelay = M_FALSE;
                i->dPassedTime = 0;
                break;
        }
    }

    // Animate the rest
    for(i=_vMessages.begin(); i!=_vMessages.end(); i++)
    {

        if(bOneUnblocked && (i->bDelay)) i->dPassedTime = 0;    // the rest wll have to wait a full period;
        else i->dPassedTime += t.delta();                       // reduce delay eriod
    }

    _ttDelay.animate(t);
}

// Draw active messages
//
void fxMessages::draw(laRenderer *r, laPoint3 pos)
{
    PROFILE_REN(fxMessages_draw);

    // Setup font
    if(!_pFont) _pFont = r->font("plain");
    _pFont->ctlAlignH(_nAlign);

    // Messages are always on top
    r->modeDepthBuffer(M_FALSE);

    // Iterate
    std::vector<_laFxMessage>::iterator i;
    for(i=_vMessages.begin(); i!=_vMessages.end(); i++)
    {
        // Skip expired messages
        double prog = (i->dPassedTime)/_dDispalcementTime;
        if( (prog > 1) || (i->bDelay) ) continue;

        laPoint3 pt = pos - laPoint3(0, prog*_dDisplacementDY, prog*_dDisplacementDY);

        // Draw text
        r->styleSet( laColor(i->rgbColor.r(), i->rgbColor.g(), i->rgbColor.b(), (1-prog)*255) );
        _pFont->ctlSize(_dFontSize*(i->dSizeMultiplier));

        if(i->nx > 1)   _pFont->draw(pt, "%s (x%d)", i->str, i->nx);
        else            _pFont->draw(pt, "%s", i->str);
    }

    //r->styleSet( laColor(255, 255, 255, 255) );
    //_pFont->draw(pos, "ssdsd" /*"%s", i->str*/);


    r->modeDepthBuffer(M_TRUE);
}