Mercurial > fife-parpg
annotate engine/core/view/rendererbase.h @ 407:f27880d4c08c
Moved getAngleBetween() form Camera to angles.h and updated it to not use the camera angle in it's calculation.
Added camera rotation to the angle calculation for selecting the correct image by angles.
Added a call to setRotation() to make sure that instance rotation is valid.
author | prock@33b003aa-7bff-0310-803a-e67f0ece8222 |
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date | Fri, 29 Jan 2010 21:03:51 +0000 |
parents | 44919eb74c40 |
children | f855809822cf |
rev | line source |
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1 /*************************************************************************** |
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2 * Copyright (C) 2005-2008 by the FIFE team * |
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3 * http://www.fifengine.de * |
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4 * This file is part of FIFE. * |
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5 * * |
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6 * FIFE is free software; you can redistribute it and/or * |
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7 * modify it under the terms of the GNU Lesser General Public * |
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8 * License as published by the Free Software Foundation; either * |
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9 * version 2.1 of the License, or (at your option) any later version. * |
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10 * * |
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11 * This library is distributed in the hope that it will be useful, * |
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * |
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14 * Lesser General Public License for more details. * |
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15 * * |
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16 * You should have received a copy of the GNU Lesser General Public * |
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17 * License along with this library; if not, write to the * |
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18 * Free Software Foundation, Inc., * |
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19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * |
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20 ***************************************************************************/ |
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21 |
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22 #ifndef FIFE_RENDERERBASE_H |
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23 #define FIFE_RENDERERBASE_H |
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24 |
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25 // Standard C++ library includes |
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26 #include <list> |
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27 #include <vector> |
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28 |
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29 // 3rd party library includes |
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30 |
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31 // FIFE includes |
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32 // These includes are split up in two parts, separated by one empty line |
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33 // First block: files included from the FIFE root src directory |
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34 // Second block: files included from the same folder |
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35 |
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36 namespace FIFE { |
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37 class Camera; |
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38 class Layer; |
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39 class Map; |
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40 class Instance; |
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41 class RenderBackend; |
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42 |
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43 class RendererBase; |
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44 /** RendererListener allows reaction to changes in renderer |
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45 * Having this implemented via callback mechanism should speed up the rendering a bit |
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46 * (e.g. no need to sort pipeline order per each frame) |
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47 */ |
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48 class IRendererListener { |
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49 public: |
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50 virtual ~IRendererListener() {} |
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51 |
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52 /** Renderer's pipeline position has been changed |
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53 */ |
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54 virtual void onRendererPipelinePositionChanged(RendererBase* renderer) = 0; |
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55 |
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56 /** Renderer is enabled / disabled |
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57 */ |
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58 virtual void onRendererEnabledChanged(RendererBase* renderer) = 0; |
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59 }; |
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60 |
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61 /** Interface to class owning the renderers |
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62 * Used to get correct subclass of renderer in scripting side (via renderer's static method) |
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63 */ |
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64 class IRendererContainer { |
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65 public: |
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66 virtual ~IRendererContainer() {} |
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67 |
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68 /** Returns renderer with given name |
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69 */ |
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70 virtual RendererBase* getRenderer(const std::string& renderername) = 0; |
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71 }; |
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72 |
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73 /** Base class for all view renderers |
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74 * View renderer renders one aspect of the view shown on screen |
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75 */ |
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76 class RendererBase { |
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77 public: |
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78 /** Constructor |
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79 * @param renderbackend to use |
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80 * @param position position for this renderer in rendering pipeline |
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81 */ |
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82 RendererBase(RenderBackend* renderbackend, int position); |
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83 |
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84 /** Copy Constructor |
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85 */ |
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86 RendererBase(const RendererBase& old); |
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87 |
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88 /** Makes copy of this renderer |
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89 */ |
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90 virtual RendererBase* clone() = 0; |
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91 |
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92 /** Destructor |
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93 */ |
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94 virtual ~RendererBase() {}; |
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95 |
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96 /** This method is called by the view to ask renderer to draw its rendering aspect based on |
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97 * given parameters. Renderers receive non-clipped instance stack since there is no |
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98 * way to know which information is relevant for the renderer. E.g. effect renderer |
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99 * might need to know offscreen instance locations to be able to draw radiation coming from |
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100 * some instance not visible on the screen. |
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101 * |
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102 * @param cam camera view to draw |
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103 * @param layer current layer to be rendered |
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104 * @param instances instances on the current layer |
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105 * @ see setPipelinePosition |
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106 */ |
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107 virtual void render(Camera* cam, Layer* layer, std::vector<Instance*>& instances) = 0; |
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108 |
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109 /** Name of the renderer |
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110 */ |
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111 virtual std::string getName() = 0; |
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112 |
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113 /** Gets renderer position in the rendering pipeline |
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114 */ |
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115 int getPipelinePosition() const { return m_pipeline_position; } |
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116 |
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117 /** Sets renderer position in the rendering pipeline |
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118 * Pipeline position defines in which order view calls the renderers when update occurs |
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119 * Note that renderers are called once per rendered layer, thus to update the |
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120 * whole screen, renderer might receive multiple calls |
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121 */ |
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122 void setPipelinePosition(int position); |
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123 |
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124 /** Enables renderer |
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125 */ |
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126 virtual void setEnabled(bool enabled); |
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127 |
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128 /** Resets information in the renderer |
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129 */ |
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130 virtual void reset() {} |
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131 |
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132 /** Is renderer enabled |
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133 */ |
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134 bool isEnabled() const { return m_enabled; } |
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135 |
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136 /** Sets listener for renderer |
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137 */ |
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138 void setRendererListener(IRendererListener* listener) { m_listener = listener; } |
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139 |
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140 /** Adds active layer to renderer. Only active layers are rendered |
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141 */ |
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142 void addActiveLayer(Layer* layer); |
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143 |
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144 /** Removes active layer from renderer. |
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145 */ |
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146 void removeActiveLayer(Layer* layer); |
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147 |
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148 /** Clears all active layers from renderer |
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149 */ |
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150 void clearActiveLayers(); |
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151 |
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152 /** Activates all layers from given elevation |
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153 */ |
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154 void activateAllLayers(Map* elevation); |
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155 |
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156 /** Returns if given layer is currently activated |
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157 */ |
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158 bool isActivedLayer(Layer* layer); |
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159 |
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160 |
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161 protected: |
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162 RendererBase(); |
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163 |
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164 std::list<Layer*> m_active_layers; |
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165 RenderBackend* m_renderbackend; |
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166 |
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167 private: |
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168 bool m_enabled; |
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169 int m_pipeline_position; |
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170 IRendererListener* m_listener; |
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171 }; |
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172 } |
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173 |
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174 #endif |