FIFE  2008.0
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blockinginforenderer.cpp
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21 
22 // Standard C++ library includes
23 
24 // 3rd party library includes
25 
26 // FIFE includes
27 // These includes are split up in two parts, separated by one empty line
28 // First block: files included from the FIFE root src directory
29 // Second block: files included from the same folder
30 #include "video/renderbackend.h"
31 #include "util/math/fife_math.h"
32 #include "util/log/logger.h"
33 #include "model/metamodel/grids/cellgrid.h"
34 #include "model/structures/instance.h"
35 #include "model/structures/layer.h"
36 #include "model/structures/location.h"
37 
38 #include "view/camera.h"
39 #include "blockinginforenderer.h"
40 
41 
42 namespace FIFE {
43  static Logger _log(LM_VIEWVIEW);
44 
45  BlockingInfoRenderer::BlockingInfoRenderer(RenderBackend* renderbackend, int32_t position):
46  RendererBase(renderbackend, position) {
47  setEnabled(false);
48  m_color.r = 0;
49  m_color.g = 255;
50  m_color.b = 0;
51  }
52 
53  BlockingInfoRenderer::BlockingInfoRenderer(const BlockingInfoRenderer& old):
54  RendererBase(old),
55  m_color(old.m_color) {
56  setEnabled(false);
57  }
58 
59  RendererBase* BlockingInfoRenderer::clone() {
60  return new BlockingInfoRenderer(*this);
61  }
62 
63  BlockingInfoRenderer::~BlockingInfoRenderer() {
64  }
65 
66  BlockingInfoRenderer* BlockingInfoRenderer::getInstance(IRendererContainer* cnt) {
67  return dynamic_cast<BlockingInfoRenderer*>(cnt->getRenderer("BlockingInfoRenderer"));
68  }
69 
70  void BlockingInfoRenderer::render(Camera* cam, Layer* layer, RenderList& instances) {
71  CellGrid* cg = layer->getCellGrid();
72  if (!cg) {
73  FL_WARN(_log, "No cellgrid assigned to layer, cannot draw grid");
74  return;
75  }
76 
77  Rect cv = cam->getViewPort();
78  RenderList::const_iterator instance_it = instances.begin();
79  for (;instance_it != instances.end(); ++instance_it) {
80  Instance* instance = (*instance_it)->instance;
81  if (!instance->getObject()->isBlocking() || !instance->isBlocking()) {
82  continue;
83  }
84  std::vector<ExactModelCoordinate> vertices;
85  cg->getVertices(vertices, instance->getLocationRef().getLayerCoordinates());
86  std::vector<ExactModelCoordinate>::const_iterator it = vertices.begin();
87  int32_t halfind = vertices.size() / 2;
88  ScreenPoint firstpt = cam->toScreenCoordinates(cg->toMapCoordinates(*it));
89  Point pt1(firstpt.x, firstpt.y);
90  Point pt2;
91  ++it;
92  for (; it != vertices.end(); it++) {
93  ScreenPoint pts = cam->toScreenCoordinates(cg->toMapCoordinates(*it));
94  pt2.x = pts.x; pt2.y = pts.y;
95  Point cpt1 = pt1;
96  Point cpt2 = pt2;
97  m_renderbackend->drawLine(cpt1, cpt2, m_color.r, m_color.g, m_color.b);
98  pt1 = pt2;
99  }
100  m_renderbackend->drawLine(pt2, Point(firstpt.x, firstpt.y), m_color.r, m_color.g, m_color.b);
101  ScreenPoint spt1 = cam->toScreenCoordinates(cg->toMapCoordinates(vertices[0]));
102  Point pt3(spt1.x, spt1.y);
103  ScreenPoint spt2 = cam->toScreenCoordinates(cg->toMapCoordinates(vertices[halfind]));
104  Point pt4(spt2.x, spt2.y);
105  m_renderbackend->drawLine(pt3, pt4, m_color.r, m_color.g, m_color.b);
106  }
107  }
108 
109  void BlockingInfoRenderer::setColor(uint8_t r, uint8_t g, uint8_t b) {
110  m_color.r = r;
111  m_color.g = g;
112  m_color.b = b;
113  }
114 }