genericrenderer.cpp

/***************************************************************************
 *   Copyright (C) 2005-2011 by the FIFE team                              *
 *   http://www.fifengine.de                                               *
 *   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 "video/renderbackend.h"
#include "video/animation.h"
#include "video/fonts/ifont.h"
#include "video/image.h"
#include "video/imagemanager.h"
#include "util/math/fife_math.h"
#include "util/log/logger.h"
#include "util/time/timemanager.h"
#include "model/metamodel/grids/cellgrid.h"
#include "model/metamodel/timeprovider.h"
#include "model/structures/instance.h"
#include "model/structures/layer.h"
#include "model/structures/location.h"

#include "view/camera.h"
#include "genericrenderer.h"


namespace FIFE {
    static Logger _log(LM_VIEWVIEW);

    GenericRendererLineInfo::GenericRendererLineInfo(RendererNode n1, RendererNode n2, uint8_t r, uint8_t g, uint8_t b, uint8_t a):
        GenericRendererElementInfo(),
        m_edge1(n1),
        m_edge2(n2),
        m_red(r),
        m_green(g),
        m_blue(b),
        m_alpha(a) {
    }
    void GenericRendererLineInfo::render(Camera* cam, Layer* layer, RenderList& instances, RenderBackend* renderbackend) {
        Point p1 = m_edge1.getCalculatedPoint(cam, layer);
        Point p2 = m_edge2.getCalculatedPoint(cam, layer);
        if(m_edge1.getLayer() == layer) {
            renderbackend->drawLine(p1, p2, m_red, m_green, m_blue, m_alpha);
        }
    }

    GenericRendererPointInfo::GenericRendererPointInfo(RendererNode anchor, uint8_t r, uint8_t g, uint8_t b, uint8_t a):
        GenericRendererElementInfo(),
        m_anchor(anchor),
        m_red(r),
        m_green(g),
        m_blue(b),
        m_alpha(a) {
    }
    void GenericRendererPointInfo::render(Camera* cam, Layer* layer, RenderList& instances, RenderBackend* renderbackend) {
        Point p = m_anchor.getCalculatedPoint(cam, layer);
        if(m_anchor.getLayer() == layer) {
            renderbackend->putPixel(p.x, p.y, m_red, m_green, m_blue, m_alpha);
        }
    }

    GenericRendererTriangleInfo::GenericRendererTriangleInfo(RendererNode n1, RendererNode n2, RendererNode n3, uint8_t r, uint8_t g, uint8_t b, uint8_t a):
        GenericRendererElementInfo(),
        m_edge1(n1),
        m_edge2(n2),
        m_edge3(n3),
        m_red(r),
        m_green(g),
        m_blue(b),
        m_alpha(a) {
    }
    void GenericRendererTriangleInfo::render(Camera* cam, Layer* layer, RenderList& instances, RenderBackend* renderbackend) {
        Point p1 = m_edge1.getCalculatedPoint(cam, layer);
        Point p2 = m_edge2.getCalculatedPoint(cam, layer);
        Point p3 = m_edge3.getCalculatedPoint(cam, layer);
        if(m_edge1.getLayer() == layer) {
            renderbackend->drawTriangle(p1, p2, p3, m_red, m_green, m_blue, m_alpha);
        }
    }

    GenericRendererQuadInfo::GenericRendererQuadInfo(RendererNode n1, RendererNode n2, RendererNode n3, RendererNode n4, uint8_t r, uint8_t g, uint8_t b, uint8_t a):
        GenericRendererElementInfo(),
        m_edge1(n1),
        m_edge2(n2),
        m_edge3(n3),
        m_edge4(n4),
        m_red(r),
        m_green(g),
        m_blue(b),
        m_alpha(a) {
    }
    void GenericRendererQuadInfo::render(Camera* cam, Layer* layer, RenderList& instances, RenderBackend* renderbackend) {
        Point p1 = m_edge1.getCalculatedPoint(cam, layer);
        Point p2 = m_edge2.getCalculatedPoint(cam, layer);
        Point p3 = m_edge3.getCalculatedPoint(cam, layer);
        Point p4 = m_edge4.getCalculatedPoint(cam, layer);
        if(m_edge1.getLayer() == layer) {
            renderbackend->drawQuad(p1, p2, p3, p4, m_red, m_green, m_blue, m_alpha);
        }
    }

    GenericRendererVertexInfo::GenericRendererVertexInfo(RendererNode center, int32_t size, uint8_t r, uint8_t g, uint8_t b, uint8_t a):
        GenericRendererElementInfo(),
        m_center(center),
        m_size(size),
        m_red(r),
        m_green(g),
        m_blue(b),
        m_alpha(a) {
    }
    void GenericRendererVertexInfo::render(Camera* cam, Layer* layer, RenderList& instances, RenderBackend* renderbackend) {
        Point p = m_center.getCalculatedPoint(cam, layer);
        if(m_center.getLayer() == layer) {
            renderbackend->drawVertex(p, m_size, m_red, m_green, m_blue, m_alpha);
        }
    }

    GenericRendererImageInfo::GenericRendererImageInfo(RendererNode anchor, ImagePtr image, bool zoomed):
        GenericRendererElementInfo(),
        m_anchor(anchor),
        m_image(image),
        m_zoomed(zoomed) {
    }
    void GenericRendererImageInfo::render(Camera* cam, Layer* layer, RenderList& instances, RenderBackend* renderbackend) {
        Point p = m_anchor.getCalculatedPoint(cam, layer, m_zoomed);
        if(m_anchor.getLayer() == layer) {
            Rect r;
            Rect viewport = cam->getViewPort();
            uint32_t width, height;
            if(m_zoomed) {
                width = static_cast<uint32_t>(round(m_image->getWidth() * cam->getZoom()));
                height = static_cast<uint32_t>(round(m_image->getHeight() * cam->getZoom()));
            }
            else {
                width = m_image->getWidth();
                height = m_image->getHeight();
            }
            r.x = p.x-width/2;
            r.y = p.y-height/2;
            r.w = width;
            r.h = height;
            if(r.intersects(viewport)) {
                m_image->render(r);
            }
        }
    }

    GenericRendererAnimationInfo::GenericRendererAnimationInfo(RendererNode anchor, AnimationPtr animation, bool zoomed):
        GenericRendererElementInfo(),
        m_anchor(anchor),
        m_animation(animation),
        m_start_time(TimeManager::instance()->getTime()),
        m_time_scale(1.0),
        m_zoomed(zoomed) {
    }
    void GenericRendererAnimationInfo::render(Camera* cam, Layer* layer, RenderList& instances, RenderBackend* renderbackend) {
        Point p = m_anchor.getCalculatedPoint(cam, layer, m_zoomed);
        if(m_anchor.getLayer() == layer) {
            int32_t animtime = scaleTime(m_time_scale, TimeManager::instance()->getTime() - m_start_time) % m_animation->getDuration();
            ImagePtr img = m_animation->getFrameByTimestamp(animtime);
            Rect r;
            Rect viewport = cam->getViewPort();
            uint32_t width, height;
            if(m_zoomed) {
                width = static_cast<uint32_t>(round(img->getWidth() * cam->getZoom()));
                height = static_cast<uint32_t>(round(img->getHeight() * cam->getZoom()));
            } else {
                width = img->getWidth();
                height = img->getHeight();
            }
            r.x = p.x-width/2;
            r.y = p.y-height/2;
            r.w = width;
            r.h = height;
            if(r.intersects(viewport)) {
                img->render(r);
            }
        }
    }

    GenericRendererTextInfo::GenericRendererTextInfo(RendererNode anchor, IFont* font, std::string text):
        GenericRendererElementInfo(),
        m_anchor(anchor),
        m_font(font),
        m_text(text) {
    }
    void GenericRendererTextInfo::render(Camera* cam, Layer* layer, RenderList& instances, RenderBackend* renderbackend) {
        Point p = m_anchor.getCalculatedPoint(cam, layer);
        if(m_anchor.getLayer() == layer) {
            Image* img = m_font->getAsImageMultiline(m_text);
            Rect r;
            Rect viewport = cam->getViewPort();
            r.x = p.x-img->getWidth()/2;
            r.y = p.y-img->getHeight()/2;
            r.w = img->getWidth();
            r.h = img->getHeight();
            if(r.intersects(viewport)) {
                img->render(r);
                if (renderbackend->getLightingModel() > 0) {
                    renderbackend->changeRenderInfos(1, 4, 5, false, false, 0, KEEP, ALWAYS);
                }
            }
        }
    }

    GenericRendererResizeInfo::GenericRendererResizeInfo(RendererNode anchor, ImagePtr image, int32_t width, int32_t height, bool zoomed):
        GenericRendererElementInfo(),
        m_anchor(anchor),
        m_image(image),
        m_width(width),
        m_height(height),
        m_zoomed(zoomed) {
    }
    void GenericRendererResizeInfo::render(Camera* cam, Layer* layer, RenderList& instances, RenderBackend* renderbackend) {
        Point p = m_anchor.getCalculatedPoint(cam, layer, m_zoomed);
        if(m_anchor.getLayer() == layer) {
            Rect r;
            Rect viewport = cam->getViewPort();
            uint32_t width, height;
            if(m_zoomed) {
                width = static_cast<uint32_t>(round(m_width * cam->getZoom()));
                height = static_cast<uint32_t>(round(m_height * cam->getZoom()));
            } else {
                width = m_width;
                height = m_height;
            }
            r.x = p.x-width/2;
            r.y = p.y-height/2;
            r.w = width;
            r.h = height;
            if(r.intersects(viewport)) {
                m_image->render(r);
            }
        }
    }

    GenericRenderer* GenericRenderer::getInstance(IRendererContainer* cnt) {
        return dynamic_cast<GenericRenderer*>(cnt->getRenderer("GenericRenderer"));
    }

    GenericRenderer::GenericRenderer(RenderBackend* renderbackend, int32_t position):
        RendererBase(renderbackend, position),
        m_groups() {
        setEnabled(false);
    }

    GenericRenderer::GenericRenderer(const GenericRenderer& old):
        RendererBase(old),
        m_groups() {
        setEnabled(false);
    }

    RendererBase* GenericRenderer::clone() {
        return new GenericRenderer(*this);
    }

    GenericRenderer::~GenericRenderer() {
    }
    void GenericRenderer::addLine(const std::string &group, RendererNode n1, RendererNode n2, uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
        GenericRendererElementInfo* info = new GenericRendererLineInfo(n1, n2, r, g, b, a);
        m_groups[group].push_back(info);
    }
    void GenericRenderer::addPoint(const std::string &group, RendererNode n, uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
        GenericRendererElementInfo* info = new GenericRendererPointInfo(n, r, g, b, a);
        m_groups[group].push_back(info);
    }
    void GenericRenderer::addTriangle(const std::string &group, RendererNode n1, RendererNode n2, RendererNode n3, uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
        GenericRendererElementInfo* info = new GenericRendererTriangleInfo(n1, n2, n3, r, g, b, a);
        m_groups[group].push_back(info);
    }
    void GenericRenderer::addQuad(const std::string &group, RendererNode n1, RendererNode n2, RendererNode n3, RendererNode n4, uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
        GenericRendererElementInfo* info = new GenericRendererQuadInfo(n1, n2, n3, n4, r, g, b, a);
        m_groups[group].push_back(info);
    }
    void GenericRenderer::addVertex(const std::string &group, RendererNode n, int32_t size, uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
        GenericRendererElementInfo* info = new GenericRendererVertexInfo(n, size, r, g, b, a);
        m_groups[group].push_back(info);
    }
    void GenericRenderer::addText(const std::string &group, RendererNode n, IFont* font, const std::string &text) {
        GenericRendererElementInfo* info = new GenericRendererTextInfo(n, font, text);
        m_groups[group].push_back(info);
    }
    void GenericRenderer::addImage(const std::string &group, RendererNode n, ImagePtr image, bool zoomed) {
        GenericRendererElementInfo* info = new GenericRendererImageInfo(n, image, zoomed);
        m_groups[group].push_back(info);
    }
    void GenericRenderer::addAnimation(const std::string &group, RendererNode n, AnimationPtr animation, bool zoomed) {
        GenericRendererElementInfo* info = new GenericRendererAnimationInfo(n, animation, zoomed);
        m_groups[group].push_back(info);
    }
    void GenericRenderer::resizeImage(const std::string &group, RendererNode n, ImagePtr image, int32_t width, int32_t height, bool zoomed) {
        GenericRendererElementInfo* info = new GenericRendererResizeInfo(n, image, width, height, zoomed);
        m_groups[group].push_back(info);
    }
    void GenericRenderer::removeAll(const std::string &group) {
        std::vector<GenericRendererElementInfo*>::const_iterator info_it = m_groups[group].begin();
        for (;info_it != m_groups[group].end(); ++info_it) {
            delete *info_it;
        }
        m_groups[group].clear();
        m_groups.erase(group);
    }
    // Remove all groups
    void GenericRenderer::removeAll() {
        m_groups.clear();
    }
    // Clear all groups
    void GenericRenderer::reset() {
        removeAll();
    }

    void GenericRenderer::render(Camera* cam, Layer* layer, RenderList& instances) {
        std::map<std::string, std::vector<GenericRendererElementInfo*> >::iterator group_it = m_groups.begin();
        for(; group_it != m_groups.end(); ++group_it) {
            std::vector<GenericRendererElementInfo*>::const_iterator info_it = group_it->second.begin();
            for (;info_it != group_it->second.end(); ++info_it) {
                (*info_it)->render(cam, layer, instances, m_renderbackend);
            }
        }
    }
}