MercuryParticle.cpp

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#include "MercuryDisplay.h"
#include "MercuryParticle.h"
#include "MercuryTextureManager.h"
#include "MercurySprite.h"
#include "MercuryObjectFactory.h"

#define MC_TEXTURELOADED 0

void MercuryParticleField::Init()
{
    MercuryObject::Init();
    m_glState.Disable(MGLS_ALL);
    m_glState.Enable(MGLS_BLEND | MGLS_DEPTHTEST | MGLS_COLORWRITE | MGLS_OPAQUE);
    m_destroyOnEmpty = true;
}

void MercuryParticleField::Message( int Message, PStack & data, const MString & name )
{
    switch ( Message ) 
    {
    case MC_TEXTURELOADED:
        {
            const MercuryTexture* t = (const MercuryTexture*)data.PeekItem(0).GetValueV();
            const ImageAttrs* imageAttrs = (const ImageAttrs*)data.PeekItem(1).GetValueV();
            const MercuryTexture *tt = m_material.GetTexture(0);
            if(tt == t)
            {
//              SetImageAttrs(*imageAttrs);
                m_state = LOADED;
                MercuryMessageHandler::UnregisterMessage( MC_TEXTURELOADED, "GetTextureID" );
                MDequeIterator<ParentHoldPair> child = m_objects.begin();
                while (child != m_objects.end())
                    ((MercurySprite*)(child++)->pObject)->LoadMaterial(this->m_material);
            }
        }
        break;
    }
}

MercuryObject* MercuryParticleField::SpawnParticle()
{
    MercurySprite* s = (MercurySprite*)Spawn("MercurySprite", "ParticleSprite");
    if ( m_state == LOADED )
        s->LoadMaterial( m_material );
    return s;
}

void MercuryParticleField::CustomRender()
{
    DISPLAY->SendMatrixData(GetFinalMatrix());
    DISPLAY->SetStates( GetInheritedGLState() );
    DISPLAY->EnableShaders(&m_material);
    DISPLAY->EnableTextures( &m_material );
    DISPLAY->DrawParticleField(this);
}

void MercuryParticleField::LoadImage(MString path)
{
    m_state = UNLOADED;
    m_imagePath = path;
    //eves drop on texture loading
    m_material.ClearTextures();
    m_material.AddTexture(MercuryTextureManager::CreateTexture(path));
    //eves drop on texture loading
    MercuryMessageHandler::RegisterMessage( MC_TEXTURELOADED, "GetTextureID" );
}

void MercuryParticleField::Update( const float dTime )
{
    if (m_objects.empty() && m_destroyOnEmpty)
        m_bMarkedForDestroy = true;

    MercuryObject::Update( dTime );
}


REGISTER_OBJECT_TYPE( MercuryParticleField );

/* 
 * Copyright (c) 2006 Joshua Allen
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
 *  -   Redistributions of source code must retain the above
 *      copyright notice, this list of conditions and the following disclaimer.
 *  -   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.
 *  -   Neither the name of the Mercury Engine nor the names of its
 *      contributors may be used to endorse or promote products derived from
 *      this software without specific prior written permission.
 *
 * 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 THE COPYRIGHT OWNER OR CONTRIBUTORS 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.
 */

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