renderitem.cpp

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/***************************************************************************
 *   Copyright (C) 2005-2019 by the FIFE team                              *
 *   http://www.fifengine.net                                              *
 *   This file is part of FIFE.                                            *
 *                                                                         *
 *   FIFE is free software; you can redistribute it and/or                 *
 *   modify it under the terms of the GNU Lesser General Public            *
 *   License as published by the Free Software Foundation; either          *
 *   version 2.1 of the License, or (at your option) any later version.    *
 *                                                                         *
 *   This library is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU     *
 *   Lesser General Public License for more details.                       *
 *                                                                         *
 *   You should have received a copy of the GNU Lesser General Public      *
 *   License along with this library; if not, write to the                 *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
 ***************************************************************************/

// Standard C++ library includes

// 3rd party library includes

// FIFE includes
// These includes are split up in two parts, separated by one empty line
// First block: files included from the FIFE root src directory
// Second block: files included from the same folder
#include "model/structures/instance.h"
#include "model/metamodel/object.h"
#include "model/metamodel/action.h"

#include "visual.h"
#include "renderitem.h"

namespace FIFE {
    const int32_t STATIC_IMAGE_NOT_INITIALIZED = -1;

    OverlayData::OverlayData():
        colorOverlay(0),
        animationOverlayImages(0),
        animationColorOverlays(0) {
    }

    OverlayData::~OverlayData() {
        delete animationOverlayImages;
        delete animationColorOverlays;
        // don't delete colorOverlay here
    }

    RenderItem::RenderItem(Instance* parent):
        instance(parent),
        screenpoint(),
        dimensions(),
        vertexZ(0),
        facingAngle(0),
        transparency(255),
        currentFrame(-1),
        m_overlay(0),
        m_cachedStaticImgId(STATIC_IMAGE_NOT_INITIALIZED),
        m_cachedStaticImgAngle(0) {
    }
    
    RenderItem::~RenderItem() {
        delete m_overlay;
    }

    int32_t RenderItem::getStaticImageIndexByAngle(uint32_t angle, Instance* instance) {
        ObjectVisual* objVis = instance->getObject()->getVisual<ObjectVisual>();
        if (!objVis) {
            return STATIC_IMAGE_NOT_INITIALIZED;
        }
        if (static_cast<int32_t>(angle) != m_cachedStaticImgAngle) {
            m_cachedStaticImgId = STATIC_IMAGE_NOT_INITIALIZED;
        }
        if (objVis->isColorOverlay()) {
            if (!m_overlay) {
                m_overlay = new OverlayData();
            }
            m_overlay->colorOverlay = objVis->getStaticColorOverlay(angle);
        }
        if (m_cachedStaticImgId != STATIC_IMAGE_NOT_INITIALIZED) {
            return m_cachedStaticImgId;
        }
        
        m_cachedStaticImgId = objVis->getStaticImageIndexByAngle(angle);
        m_cachedStaticImgAngle = angle;

        return m_cachedStaticImgId;
    }

    void RenderItem::setAnimationOverlay(std::vector<ImagePtr>* ao, std::vector<OverlayColors*>* aco) {
        if (!m_overlay) {
            m_overlay = new OverlayData();
        }
        m_overlay->animationOverlayImages = ao;
        m_overlay->animationColorOverlays = aco;
    }

    std::vector<ImagePtr>* RenderItem::getAnimationOverlay() const {
        if (m_overlay) {
            return m_overlay->animationOverlayImages;
        }
        return NULL;
    }

    std::vector<OverlayColors*>* RenderItem::getAnimationColorOverlay() const {
        if (m_overlay) {
            return m_overlay->animationColorOverlays;
        }
        return NULL;
    }

    void RenderItem::setColorOverlay(OverlayColors* co) {
        if (!m_overlay) {
            m_overlay = new OverlayData();
        }
        m_overlay->colorOverlay = co;
    }

    OverlayColors* RenderItem::getColorOverlay() const {
        if (m_overlay) {
            return m_overlay->colorOverlay;
        }
        return NULL;
    }

    void RenderItem::deleteOverlayData() {
        if (m_overlay) {
            delete m_overlay;
            m_overlay = 0;
        }
    }

    void RenderItem::reset() {
        instance = 0;
        dimensions = Rect();
        image.reset();
        transparency = 255;
        currentFrame = -1;
        m_cachedStaticImgId = STATIC_IMAGE_NOT_INITIALIZED;
        deleteOverlayData();
    }
}