1 | /* |
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2 | ----------------------------------------------------------------------------- |
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3 | This source file is part of OGRE |
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4 | (Object-oriented Graphics Rendering Engine) |
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5 | For the latest info, see http://www.ogre3d.org/ |
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6 | |
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7 | Copyright (c) 2000-2006 Torus Knot Software Ltd |
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8 | Also see acknowledgements in Readme.html |
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9 | |
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10 | This program is free software; you can redistribute it and/or modify it under |
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11 | the terms of the GNU Lesser General Public License as published by the Free Software |
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12 | Foundation; either version 2 of the License, or (at your option) any later |
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13 | version. |
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14 | |
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15 | This program is distributed in the hope that it will be useful, but WITHOUT |
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16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. |
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18 | |
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19 | You should have received a copy of the GNU Lesser General Public License along with |
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20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
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21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to |
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22 | http://www.gnu.org/copyleft/lesser.txt. |
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23 | |
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24 | You may alternatively use this source under the terms of a specific version of |
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25 | the OGRE Unrestricted License provided you have obtained such a license from |
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26 | Torus Knot Software Ltd. |
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27 | ----------------------------------------------------------------------------- |
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28 | */ |
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29 | #include "OgreStableHeaders.h" |
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30 | |
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31 | #include "OgreMovableObject.h" |
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32 | #include "OgreSceneNode.h" |
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33 | #include "OgreTagPoint.h" |
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34 | #include "OgreLight.h" |
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35 | #include "OgreEntity.h" |
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36 | #include "OgreRoot.h" |
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37 | #include "OgreSceneManager.h" |
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38 | #include "OgreCamera.h" |
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39 | |
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40 | namespace Ogre { |
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41 | //----------------------------------------------------------------------- |
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42 | //----------------------------------------------------------------------- |
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43 | uint32 MovableObject::msDefaultQueryFlags = 0xFFFFFFFF; |
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44 | uint32 MovableObject::msDefaultVisibilityFlags = 0xFFFFFFFF; |
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45 | //----------------------------------------------------------------------- |
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46 | MovableObject::MovableObject() |
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47 | : mCreator(0) |
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48 | , mManager(0) |
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49 | , mParentNode(0) |
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50 | , mParentIsTagPoint(false) |
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51 | , mVisible(true) |
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52 | , mUpperDistance(0) |
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53 | , mSquaredUpperDistance(0) |
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54 | , mBeyondFarDistance(false) |
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55 | , mRenderQueueID(RENDER_QUEUE_MAIN) |
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56 | , mRenderQueueIDSet(false) |
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57 | , mQueryFlags(msDefaultQueryFlags) |
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58 | , mVisibilityFlags(msDefaultVisibilityFlags) |
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59 | , mCastShadows(true) |
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60 | , mRenderingDisabled(false) |
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61 | , mListener(0) |
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62 | , mLightListUpdated(0) |
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63 | { |
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64 | } |
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65 | //----------------------------------------------------------------------- |
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66 | MovableObject::MovableObject(const String& name) |
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67 | : mName(name) |
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68 | , mCreator(0) |
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69 | , mManager(0) |
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70 | , mParentNode(0) |
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71 | , mParentIsTagPoint(false) |
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72 | , mVisible(true) |
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73 | , mUpperDistance(0) |
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74 | , mSquaredUpperDistance(0) |
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75 | , mBeyondFarDistance(false) |
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76 | , mRenderQueueID(RENDER_QUEUE_MAIN) |
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77 | , mRenderQueueIDSet(false) |
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78 | , mQueryFlags(msDefaultQueryFlags) |
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79 | , mVisibilityFlags(msDefaultVisibilityFlags) |
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80 | , mCastShadows(true) |
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81 | , mRenderingDisabled(false) |
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82 | , mListener(0) |
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83 | , mLightListUpdated(0) |
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84 | { |
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85 | } |
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86 | //----------------------------------------------------------------------- |
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87 | MovableObject::~MovableObject() |
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88 | { |
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89 | // Call listener (note, only called if there's something to do) |
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90 | if (mListener) |
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91 | { |
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92 | mListener->objectDestroyed(this); |
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93 | } |
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94 | |
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95 | if (mParentNode) |
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96 | { |
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97 | // detach from parent |
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98 | if (mParentIsTagPoint) |
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99 | { |
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100 | // May be we are a lod entity which not in the parent entity child object list, |
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101 | // call this method could safely ignore this case. |
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102 | static_cast<TagPoint*>(mParentNode)->getParentEntity()->detachObjectFromBone(this); |
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103 | } |
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104 | else |
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105 | { |
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106 | // May be we are a lod entity which not in the parent node child object list, |
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107 | // call this method could safely ignore this case. |
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108 | static_cast<SceneNode*>(mParentNode)->detachObject(this); |
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109 | } |
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110 | } |
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111 | } |
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112 | //----------------------------------------------------------------------- |
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113 | void MovableObject::_notifyAttached(Node* parent, bool isTagPoint) |
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114 | { |
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115 | assert(!mParentNode || !parent); |
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116 | |
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117 | bool different = (parent != mParentNode); |
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118 | |
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119 | mParentNode = parent; |
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120 | mParentIsTagPoint = isTagPoint; |
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121 | |
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122 | // Mark light list being dirty, simply decrease |
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123 | // counter by one for minimise overhead |
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124 | --mLightListUpdated; |
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125 | |
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126 | // Call listener (note, only called if there's something to do) |
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127 | if (mListener && different) |
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128 | { |
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129 | if (mParentNode) |
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130 | mListener->objectAttached(this); |
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131 | else |
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132 | mListener->objectDetached(this); |
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133 | } |
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134 | } |
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135 | //----------------------------------------------------------------------- |
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136 | Node* MovableObject::getParentNode(void) const |
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137 | { |
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138 | return mParentNode; |
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139 | } |
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140 | //----------------------------------------------------------------------- |
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141 | SceneNode* MovableObject::getParentSceneNode(void) const |
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142 | { |
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143 | if (mParentIsTagPoint) |
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144 | { |
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145 | TagPoint* tp = static_cast<TagPoint*>(mParentNode); |
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146 | return tp->getParentEntity()->getParentSceneNode(); |
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147 | } |
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148 | else |
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149 | { |
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150 | return static_cast<SceneNode*>(mParentNode); |
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151 | } |
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152 | } |
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153 | //----------------------------------------------------------------------- |
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154 | bool MovableObject::isAttached(void) const |
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155 | { |
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156 | return (mParentNode != 0); |
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157 | |
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158 | } |
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159 | //----------------------------------------------------------------------- |
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160 | bool MovableObject::isInScene(void) const |
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161 | { |
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162 | if (mParentNode != 0) |
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163 | { |
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164 | if (mParentIsTagPoint) |
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165 | { |
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166 | TagPoint* tp = static_cast<TagPoint*>(mParentNode); |
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167 | return tp->getParentEntity()->isInScene(); |
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168 | } |
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169 | else |
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170 | { |
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171 | SceneNode* sn = static_cast<SceneNode*>(mParentNode); |
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172 | return sn->isInSceneGraph(); |
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173 | } |
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174 | } |
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175 | else |
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176 | { |
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177 | return false; |
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178 | } |
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179 | } |
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180 | //----------------------------------------------------------------------- |
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181 | void MovableObject::_notifyMoved(void) |
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182 | { |
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183 | // Mark light list being dirty, simply decrease |
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184 | // counter by one for minimise overhead |
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185 | --mLightListUpdated; |
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186 | |
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187 | // Notify listener if exists |
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188 | if (mListener) |
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189 | { |
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190 | mListener->objectMoved(this); |
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191 | } |
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192 | } |
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193 | //----------------------------------------------------------------------- |
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194 | void MovableObject::setVisible(bool visible) |
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195 | { |
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196 | mVisible = visible; |
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197 | } |
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198 | //----------------------------------------------------------------------- |
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199 | bool MovableObject::getVisible(void) const |
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200 | { |
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201 | return mVisible; |
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202 | } |
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203 | //----------------------------------------------------------------------- |
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204 | bool MovableObject::isVisible(void) const |
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205 | { |
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206 | if (!mVisible || mBeyondFarDistance || mRenderingDisabled) |
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207 | return false; |
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208 | |
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209 | SceneManager* sm = Root::getSingleton()._getCurrentSceneManager(); |
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210 | if (sm && !(mVisibilityFlags & sm->_getCombinedVisibilityMask())) |
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211 | return false; |
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212 | |
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213 | return true; |
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214 | } |
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215 | //----------------------------------------------------------------------- |
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216 | void MovableObject::_notifyCurrentCamera(Camera* cam) |
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217 | { |
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218 | if (mParentNode) |
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219 | { |
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220 | if (cam->getUseRenderingDistance() && mUpperDistance > 0) |
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221 | { |
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222 | Real rad = getBoundingRadius(); |
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223 | Real squaredDepth = mParentNode->getSquaredViewDepth(cam); |
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224 | // Max distance to still render |
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225 | Real maxDist = mUpperDistance + rad; |
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226 | if (squaredDepth > Math::Sqr(maxDist)) |
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227 | { |
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228 | mBeyondFarDistance = true; |
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229 | } |
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230 | else |
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231 | { |
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232 | mBeyondFarDistance = false; |
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233 | } |
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234 | } |
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235 | else |
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236 | { |
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237 | mBeyondFarDistance = false; |
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238 | } |
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239 | } |
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240 | |
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241 | mRenderingDisabled = mListener && !mListener->objectRendering(this, cam); |
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242 | } |
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243 | //----------------------------------------------------------------------- |
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244 | void MovableObject::setRenderQueueGroup(uint8 queueID) |
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245 | { |
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246 | assert(queueID <= RENDER_QUEUE_MAX && "Render queue out of range!"); |
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247 | mRenderQueueID = queueID; |
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248 | mRenderQueueIDSet = true; |
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249 | } |
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250 | //----------------------------------------------------------------------- |
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251 | uint8 MovableObject::getRenderQueueGroup(void) const |
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252 | { |
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253 | return mRenderQueueID; |
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254 | } |
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255 | //----------------------------------------------------------------------- |
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256 | const Matrix4& MovableObject::_getParentNodeFullTransform(void) const |
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257 | { |
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258 | |
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259 | if(mParentNode) |
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260 | { |
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261 | // object attached to a sceneNode |
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262 | return mParentNode->_getFullTransform(); |
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263 | } |
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264 | // fallback |
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265 | return Matrix4::IDENTITY; |
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266 | } |
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267 | //----------------------------------------------------------------------- |
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268 | const AxisAlignedBox& MovableObject::getWorldBoundingBox(bool derive) const |
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269 | { |
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270 | if (derive) |
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271 | { |
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272 | mWorldAABB = this->getBoundingBox(); |
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273 | mWorldAABB.transformAffine(_getParentNodeFullTransform()); |
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274 | } |
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275 | |
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276 | return mWorldAABB; |
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277 | |
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278 | } |
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279 | //----------------------------------------------------------------------- |
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280 | const Sphere& MovableObject::getWorldBoundingSphere(bool derive) const |
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281 | { |
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282 | if (derive) |
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283 | { |
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284 | mWorldBoundingSphere.setRadius(getBoundingRadius()); |
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285 | mWorldBoundingSphere.setCenter(mParentNode->_getDerivedPosition()); |
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286 | } |
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287 | return mWorldBoundingSphere; |
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288 | } |
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289 | //----------------------------------------------------------------------- |
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290 | const LightList& MovableObject::queryLights(void) const |
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291 | { |
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292 | // Try listener first |
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293 | if (mListener) |
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294 | { |
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295 | const LightList* lightList = |
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296 | mListener->objectQueryLights(this); |
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297 | if (lightList) |
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298 | { |
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299 | return *lightList; |
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300 | } |
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301 | } |
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302 | |
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303 | // Query from parent entity if exists |
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304 | if (mParentIsTagPoint) |
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305 | { |
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306 | TagPoint* tp = static_cast<TagPoint*>(mParentNode); |
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307 | return tp->getParentEntity()->queryLights(); |
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308 | } |
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309 | |
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310 | if (mParentNode) |
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311 | { |
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312 | SceneNode* sn = static_cast<SceneNode*>(mParentNode); |
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313 | |
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314 | // Make sure we only update this only if need. |
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315 | ulong frame = sn->getCreator()->_getLightsDirtyCounter(); |
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316 | if (mLightListUpdated != frame) |
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317 | { |
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318 | mLightListUpdated = frame; |
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319 | |
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320 | sn->findLights(mLightList, this->getBoundingRadius()); |
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321 | } |
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322 | } |
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323 | else |
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324 | { |
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325 | mLightList.clear(); |
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326 | } |
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327 | |
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328 | return mLightList; |
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329 | } |
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330 | //----------------------------------------------------------------------- |
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331 | ShadowCaster::ShadowRenderableListIterator MovableObject::getShadowVolumeRenderableIterator( |
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332 | ShadowTechnique shadowTechnique, const Light* light, |
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333 | HardwareIndexBufferSharedPtr* indexBuffer, |
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334 | bool extrudeVertices, Real extrusionDist, unsigned long flags ) |
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335 | { |
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336 | static ShadowRenderableList dummyList; |
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337 | return ShadowRenderableListIterator(dummyList.begin(), dummyList.end()); |
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338 | } |
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339 | //----------------------------------------------------------------------- |
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340 | const AxisAlignedBox& MovableObject::getLightCapBounds(void) const |
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341 | { |
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342 | // Same as original bounds |
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343 | return getWorldBoundingBox(); |
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344 | } |
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345 | //----------------------------------------------------------------------- |
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346 | const AxisAlignedBox& MovableObject::getDarkCapBounds(const Light& light, Real extrusionDist) const |
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347 | { |
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348 | // Extrude own light cap bounds |
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349 | mWorldDarkCapBounds = getLightCapBounds(); |
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350 | this->extrudeBounds(mWorldDarkCapBounds, light.getAs4DVector(), |
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351 | extrusionDist); |
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352 | return mWorldDarkCapBounds; |
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353 | |
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354 | } |
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355 | //----------------------------------------------------------------------- |
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356 | Real MovableObject::getPointExtrusionDistance(const Light* l) const |
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357 | { |
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358 | if (mParentNode) |
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359 | { |
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360 | return getExtrusionDistance(mParentNode->_getDerivedPosition(), l); |
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361 | } |
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362 | else |
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363 | { |
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364 | return 0; |
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365 | } |
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366 | } |
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367 | //----------------------------------------------------------------------- |
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368 | uint32 MovableObject::getTypeFlags(void) const |
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369 | { |
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370 | if (mCreator) |
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371 | { |
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372 | return mCreator->getTypeFlags(); |
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373 | } |
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374 | else |
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375 | { |
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376 | return 0xFFFFFFFF; |
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377 | } |
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378 | } |
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379 | //----------------------------------------------------------------------- |
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380 | //----------------------------------------------------------------------- |
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381 | MovableObject* MovableObjectFactory::createInstance( |
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382 | const String& name, SceneManager* manager, |
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383 | const NameValuePairList* params) |
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384 | { |
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385 | MovableObject* m = createInstanceImpl(name, params); |
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386 | m->_notifyCreator(this); |
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387 | m->_notifyManager(manager); |
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388 | return m; |
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389 | } |
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390 | |
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391 | |
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392 | } |
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393 | |
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