source: trunk/engine/core/view/renderers/genericrenderer.cpp @ 3513

/***************************************************************************
 *   Copyright (C) 2005-2008 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/imagepool.h"
#include "video/animation.h"
#include "video/animationpool.h"
#include "video/fonts/abstractfont.h"
#include "video/image.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);

   GenericRendererNode::GenericRendererNode(Instance* attached_instance, const Location &relative_location, Layer* relative_layer, const Point &relative_point):
      m_instance(attached_instance),
      m_location(relative_location),
      m_layer(relative_layer),
      m_point(relative_point) {
   }
   GenericRendererNode::GenericRendererNode(Instance* attached_instance, const Location &relative_location, const Point &relative_point):
      m_instance(attached_instance),
      m_location(relative_location),
      m_layer(NULL),
      m_point(relative_point) {
   }
   GenericRendererNode::GenericRendererNode(Instance* attached_instance, Layer* relative_layer, const Point &relative_point):
      m_instance(attached_instance),
      m_location(NULL),
      m_layer(relative_layer),
      m_point(relative_point) {
   }
   GenericRendererNode::GenericRendererNode(Instance* attached_instance, const Point &relative_point):
      m_instance(attached_instance),
      m_location(NULL),
      m_layer(NULL),
      m_point(relative_point) {
   }
   GenericRendererNode::GenericRendererNode(const Location &attached_location, Layer* relative_layer, const Point &relative_point):
      m_instance(NULL),
      m_location(attached_location),
      m_layer(relative_layer),
      m_point(relative_point) {
   }
   GenericRendererNode::GenericRendererNode(const Location &attached_location, const Point &relative_point):
      m_instance(NULL),
      m_location(attached_location),
      m_layer(NULL),
      m_point(relative_point) {
   }
   GenericRendererNode::GenericRendererNode(Layer* attached_layer, const Point &relative_point):
      m_instance(NULL),
      m_location(NULL),
      m_layer(attached_layer),
      m_point(relative_point) {
   }
   GenericRendererNode::GenericRendererNode(const Point &attached_point):
      m_instance(NULL),
      m_location(NULL),
      m_layer(NULL),
      m_point(attached_point) {
   }
   GenericRendererNode::~GenericRendererNode() {
   }

   void GenericRendererNode::setAttached(Instance* attached_instance, const Location &relative_location, const Point &relative_point) {
      m_instance = attached_instance;
      m_location = relative_location;
      m_point = relative_point;
   }
   void GenericRendererNode::setAttached(Instance* attached_instance, const Location &relative_location) {
      m_instance = attached_instance;
      m_location = relative_location;
   }
   void GenericRendererNode::setAttached(Instance* attached_instance, const Point &relative_point) {
      m_instance = attached_instance;
      m_point = relative_point;
   }
   void GenericRendererNode::setAttached(Instance* attached_instance) {
      m_instance = attached_instance;
   }
   void GenericRendererNode::setAttached(const Location &attached_location, const Point &relative_point) {
      m_instance = NULL;
      m_location = attached_location;
      m_point = relative_point;
   }
   void GenericRendererNode::setAttached(const Location &attached_location) {
      m_instance = NULL;
      m_location = attached_location;
   }
   void GenericRendererNode::setAttached(Layer* attached_layer) {
      m_layer = attached_layer;
   }
   void GenericRendererNode::setAttached(const Point &attached_point) {
      m_instance = NULL;
      m_location = NULL;
      m_point = attached_point;
   }

   void GenericRendererNode::setRelative(const Location &relative_location) {
      if(m_instance == NULL) {
         throw NotSupported("No instance attached.");
      }
      m_location = relative_location;
   }
   void GenericRendererNode::setRelative(const Location &relative_location, Point relative_point) {
      if(m_instance == NULL) {
         throw NotSupported("No instance attached.");
      }
      m_location = relative_location;
      m_point = relative_point;
   }
   void GenericRendererNode::setRelative(const Point &relative_point) {
      if(m_instance == NULL || m_location == NULL) {
         throw NotSupported("No instance or location attached.");
      }
      m_point = relative_point;
   }

   Instance* GenericRendererNode::getAttachedInstance() {
      if(m_instance == NULL) {
         throw NotSupported("No instance attached.");
      }
      return m_instance;
   }
   Location GenericRendererNode::getAttachedLocation() {
      if(m_instance != NULL || m_location == NULL) {
         throw NotSupported("No location attached.");
      }
      return m_location;
   }
   Layer* GenericRendererNode::getAttachedLayer() {
      if(m_layer == NULL) {
         throw NotSupported("No layer attached.");
      }
      return m_layer;
   }
   Point GenericRendererNode::getAttachedPoint() {
      if(m_instance != NULL || m_location != NULL) {
         throw NotSupported("No point attached.");
      }
      return m_point;
   }

   Location GenericRendererNode::getOffsetLocation() {
      if(m_instance == NULL || m_location == NULL) {
         throw NotSupported("No location as offset used.");
      }
      return m_location;
   }
   Point GenericRendererNode::getOffsetPoint() {
      if(m_instance == NULL && m_location == NULL) {
         throw NotSupported("No point as offset used.");
      }
      return m_point;
   }

   Instance* GenericRendererNode::getInstance() {
      return m_instance;
   }
   Location GenericRendererNode::getLocation() {
      return m_location;
   }
   Layer* GenericRendererNode::getLayer() {
      return m_layer;
   }
   Point GenericRendererNode::getPoint() {
      return m_point;
   }

   Point GenericRendererNode::getCalculatedPoint(Camera* cam, Layer* layer) {
      ScreenPoint p;
      if(m_instance != NULL) {
         if(m_layer == NULL) {
            m_layer = m_instance->getLocation().getLayer();
         }
         if(m_location != NULL) {
            p = cam->toScreenCoordinates(m_instance->getLocationRef().getMapCoordinates() + m_location.getMapCoordinates());
         } else {
            p = cam->toScreenCoordinates(m_instance->getLocation().getMapCoordinates());
         }
      } else if(m_location != NULL) {
         if(m_layer == NULL) {
            m_layer = m_location.getLayer();
         }
         p = cam->toScreenCoordinates(m_location.getMapCoordinates());
      } else if(m_layer == NULL) {
         const std::list<Layer*>& layers = cam->getRenderer("GenericRenderer")->getActiveLayers();
         std::list<Layer*>::const_reverse_iterator layer_it = layers.rbegin();
         setAttached(*layer_it);
      }
      return Point(m_point.x + p.x, m_point.y + p.y);
   }

   GenericRendererLineInfo::GenericRendererLineInfo(GenericRendererNode n1, GenericRendererNode 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, ImagePool* imagepool, AnimationPool* animpool) {
      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(GenericRendererNode 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, ImagePool* imagepool, AnimationPool* animpool) {
      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(GenericRendererNode n1, GenericRendererNode n2, GenericRendererNode 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, ImagePool* imagepool, AnimationPool* animpool) {
      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(GenericRendererNode n1, GenericRendererNode n2, GenericRendererNode n3, GenericRendererNode 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, ImagePool* imagepool, AnimationPool* animpool) {
      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(GenericRendererNode center, int 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, ImagePool* imagepool, AnimationPool* animpool) {
      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(GenericRendererNode anchor, int image):
      GenericRendererElementInfo(),
      m_anchor(anchor),
      m_image(image) {
   }
   void GenericRendererImageInfo::render(Camera* cam, Layer* layer, RenderList& instances, RenderBackend* renderbackend, ImagePool* imagepool, AnimationPool* animpool) {
      Point p = m_anchor.getCalculatedPoint(cam, layer);
      if(m_anchor.getLayer() == layer) {
         Image* img = &imagepool->getImage(m_image);
         Rect r;
         Rect viewport = cam->getViewPort();
         unsigned int widtht = round(img->getWidth() * cam->getZoom());
         unsigned int height = round(img->getHeight() * cam->getZoom());
         r.x = p.x-widtht/2;
         r.y = p.y-height/2;
         r.w = widtht;
         r.h = height;
         if(r.intersects(viewport))
            img->render(r);
      }
   }

   GenericRendererAnimationInfo::GenericRendererAnimationInfo(GenericRendererNode anchor, int animation):
      GenericRendererElementInfo(),
      m_anchor(anchor),
      m_animation(animation),
      m_start_time(TimeManager::instance()->getTime()),
      m_time_scale(1.0) {
   }
   void GenericRendererAnimationInfo::render(Camera* cam, Layer* layer, RenderList& instances, RenderBackend* renderbackend, ImagePool* imagepool, AnimationPool* animpool) {
      Point p = m_anchor.getCalculatedPoint(cam, layer);
      if(m_anchor.getLayer() == layer) {
         Animation& animation = animpool->getAnimation(m_animation);
         int animtime = scaleTime(m_time_scale, TimeManager::instance()->getTime() - m_start_time) % animation.getDuration();
         Image* img = animation.getFrameByTimestamp(animtime);
         Rect r;
         Rect viewport = cam->getViewPort();
         unsigned int widtht = round(img->getWidth() * cam->getZoom());
         unsigned int height = round(img->getHeight() * cam->getZoom());
         r.x = p.x-widtht/2;
         r.y = p.y-height/2;
         r.w = widtht;
         r.h = height;
         if(r.intersects(viewport))
            img->render(r);
      }
   }

   GenericRendererTextInfo::GenericRendererTextInfo(GenericRendererNode anchor, AbstractFont* 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, ImagePool* imagepool, AnimationPool* animpool) {
      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)) {
            renderbackend->disableLighting();
            img->render(r);
            renderbackend->enableLighting();
         }
      }
   }

   GenericRendererResizeInfo::GenericRendererResizeInfo(GenericRendererNode anchor, int image, int width, int height):
      GenericRendererElementInfo(),
      m_anchor(anchor),
      m_image(image),
      m_width(width),
      m_height(height){
   }
   void GenericRendererResizeInfo::render(Camera* cam, Layer* layer, RenderList& instances, RenderBackend* renderbackend, ImagePool* imagepool, AnimationPool* animpool) {
      Point p = m_anchor.getCalculatedPoint(cam, layer);
      if(m_anchor.getLayer() == layer) {
         Image* img = &imagepool->getImage(m_image);
         Rect r;
         Rect viewport = cam->getViewPort();
         unsigned int widtht = round(m_width * cam->getZoom());
         unsigned int height = round(m_height * cam->getZoom());
         r.x = p.x-widtht/2;
         r.y = p.y-height/2;
         r.w = widtht;
         r.h = height;
         if(r.intersects(viewport)) {
            img->render(r);
         }
      }
   }
   
   GenericRenderer* GenericRenderer::getInstance(IRendererContainer* cnt) {
      return dynamic_cast<GenericRenderer*>(cnt->getRenderer("GenericRenderer"));
   }

   GenericRenderer::GenericRenderer(RenderBackend* renderbackend, int position, ImagePool* imagepool, AnimationPool* animpool):
      RendererBase(renderbackend, position),
      m_imagepool(imagepool),
      m_animationpool(animpool),
      m_groups() {
      setEnabled(false);
   }

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

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

   GenericRenderer::~GenericRenderer() {
   }
   void GenericRenderer::addLine(const std::string &group, GenericRendererNode n1, GenericRendererNode 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, GenericRendererNode 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, GenericRendererNode n1, GenericRendererNode n2, GenericRendererNode 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, GenericRendererNode n1, GenericRendererNode n2, GenericRendererNode n3, GenericRendererNode 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, GenericRendererNode n, int 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, GenericRendererNode n, AbstractFont* 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, GenericRendererNode n, int image) {
      GenericRendererElementInfo* info = new GenericRendererImageInfo(n, image);
      m_groups[group].push_back(info);
   }
   void GenericRenderer::addAnimation(const std::string &group, GenericRendererNode n, int animation) {
      GenericRendererElementInfo* info = new GenericRendererAnimationInfo(n, animation);
      m_groups[group].push_back(info);
   }
   void GenericRenderer::resizeImage(const std::string &group, GenericRendererNode n, int image, int width, int height) {
      GenericRendererElementInfo* info = new GenericRendererResizeInfo(n, image, width, height);
      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);
   }

   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, m_imagepool, m_animationpool);
         }
      }
   }
}