1 | /* |
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2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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3 | * > www.orxonox.net < |
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4 | * |
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5 | * |
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6 | * License notice: |
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7 | * |
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8 | * This program is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the GNU General Public License |
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10 | * as published by the Free Software Foundation; either version 2 |
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11 | * of the License, or (at your option) any later version. |
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12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | * GNU General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with this program; if not, write to the Free Software |
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20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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21 | * |
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22 | * Author: |
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23 | * Maurus Kaufmann |
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24 | * Co-authors: |
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25 | * ... |
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26 | * |
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27 | */ |
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28 | |
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29 | #include "SpaceBoundaries.h" |
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30 | |
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31 | #include <OgreBillboardSet.h> |
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32 | |
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33 | #include "core/CoreIncludes.h" |
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34 | #include "core/object/ObjectListIterator.h" |
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35 | #include "core/XMLPort.h" |
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36 | |
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37 | #include "graphics/Billboard.h" |
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38 | #include "infos/PlayerInfo.h" |
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39 | #include "worldentities/WorldEntity.h" |
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40 | #include "worldentities/pawns/Pawn.h" |
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41 | |
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42 | namespace orxonox |
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43 | { |
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44 | RegisterClass(SpaceBoundaries); |
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45 | |
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46 | SpaceBoundaries::SpaceBoundaries(Context* context) : StaticEntity(context) |
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47 | { |
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48 | RegisterObject(SpaceBoundaries); |
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49 | |
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50 | this->setMaxDistance(3000); |
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51 | this->setWarnDistance(this->getMaxDistance()); |
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52 | this->setShowDistance(this->getMaxDistance()); |
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53 | this->setReaction(0); |
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54 | } |
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55 | SpaceBoundaries::~SpaceBoundaries() |
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56 | { |
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57 | if (this->isInitialized()) |
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58 | { |
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59 | this->pawnsIn_.clear(); |
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60 | |
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61 | for( std::vector<BillboardAdministration>::iterator current = this->billboards_.begin(); current != this->billboards_.end(); current++) |
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62 | { |
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63 | if( current->billy != NULL) |
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64 | { |
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65 | delete current->billy; |
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66 | } |
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67 | } |
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68 | this->billboards_.clear(); |
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69 | } |
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70 | } |
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71 | |
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72 | void SpaceBoundaries::checkWhoIsIn() |
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73 | { |
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74 | pawnsIn_.clear(); |
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75 | for(ObjectList<Pawn>::iterator current = ObjectList<Pawn>::begin(); current != ObjectList<Pawn>::end(); ++current) |
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76 | { |
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77 | Pawn* currentPawn = *current; |
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78 | if( this->reaction_ == 0 ) |
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79 | { |
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80 | float distance = this->computeDistance(currentPawn); |
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81 | if(distance <= this->maxDistance_) |
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82 | { |
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83 | pawnsIn_.push_back(currentPawn); |
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84 | } |
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85 | } else if (this->reaction_ == 2) { |
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86 | float distance = this->computeDistance(currentPawn); |
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87 | if(distance >= this->maxDistance_) |
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88 | { |
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89 | pawnsIn_.push_back(currentPawn); |
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90 | } |
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91 | } else { |
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92 | pawnsIn_.push_back(currentPawn); |
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93 | } |
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94 | } |
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95 | } |
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96 | |
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97 | void SpaceBoundaries::positionBillboard(const Vector3& position, float alpha) |
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98 | { |
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99 | size_t current; |
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100 | for (current = 0; current < this->billboards_.size(); ++current) |
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101 | if (!this->billboards_[current].usedYet) |
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102 | break; |
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103 | |
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104 | if (current == this->billboards_.size()) |
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105 | { |
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106 | Billboard* billboard = new Billboard(this->getContext()); |
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107 | billboard->setPosition(position); |
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108 | billboard->setSyncMode(ObjectDirection::None); |
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109 | this->setBillboardOptions(billboard); |
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110 | BillboardAdministration ba = {true, billboard}; |
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111 | this->billboards_.push_back(ba); |
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112 | } |
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113 | |
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114 | this->billboards_[current].billy->setPosition(position); |
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115 | this->billboards_[current].billy->setVisible(true); |
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116 | this->billboards_[current].billy->setColour(ColourValue(1, 1, 1, alpha)); |
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117 | this->billboards_[current].usedYet = true; |
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118 | |
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119 | Vector3 directionVector = (this->getPosition() - position).normalisedCopy(); // vector from the position of the billboard to the center of the sphere |
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120 | this->billboards_[current].billy->setCommonDirection(directionVector); |
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121 | |
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122 | Vector3 upVector = Vector3(directionVector.z, directionVector.z, -(directionVector.x + directionVector.y)); // vector perpendicular to the direction vector |
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123 | upVector.normalise(); |
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124 | this->billboards_[current].billy->setCommonUpVector(upVector); |
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125 | } |
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126 | |
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127 | void SpaceBoundaries::setBillboardOptions(Billboard *billy) |
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128 | { |
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129 | if(billy != NULL) |
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130 | { |
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131 | billy->setMaterial("Grid"); |
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132 | billy->setBillboardType(Ogre::BBT_PERPENDICULAR_COMMON); |
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133 | billy->setDefaultDimensions(150, 150); |
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134 | billy->setVisible(true); |
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135 | } |
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136 | } |
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137 | |
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138 | void SpaceBoundaries::removeAllBillboards() |
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139 | { |
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140 | for( std::vector<BillboardAdministration>::iterator current = this->billboards_.begin(); current != this->billboards_.end(); current++ ) |
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141 | { |
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142 | current->usedYet = false; |
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143 | current->billy->setVisible(false); |
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144 | } |
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145 | } |
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146 | |
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147 | void SpaceBoundaries::setMaxDistance(float r) |
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148 | { |
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149 | this->maxDistance_ = r; |
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150 | } |
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151 | float SpaceBoundaries::getMaxDistance() |
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152 | { |
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153 | return this->maxDistance_; |
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154 | } |
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155 | |
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156 | void SpaceBoundaries::setWarnDistance(float r) |
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157 | { |
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158 | this->warnDistance_ = r; |
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159 | } |
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160 | float SpaceBoundaries::getWarnDistance() |
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161 | { |
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162 | return this->warnDistance_; |
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163 | } |
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164 | |
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165 | void SpaceBoundaries::setShowDistance(float r) |
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166 | { |
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167 | this->showDistance_ = r; |
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168 | } |
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169 | float SpaceBoundaries::getShowDistance() |
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170 | { |
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171 | return this->showDistance_; |
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172 | } |
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173 | |
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174 | void SpaceBoundaries::setHealthDecrease(float amount) |
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175 | { |
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176 | this->healthDecrease_ = amount/1000; |
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177 | } |
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178 | float SpaceBoundaries::getHealthDecrease() |
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179 | { |
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180 | return this->healthDecrease_; |
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181 | } |
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182 | |
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183 | void SpaceBoundaries::setReaction(int mode) |
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184 | { |
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185 | this->reaction_ = mode; |
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186 | } |
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187 | int SpaceBoundaries::getReaction() |
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188 | { |
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189 | return this->reaction_; |
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190 | } |
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191 | |
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192 | void SpaceBoundaries::XMLPort(Element& xmlelement, XMLPort::Mode mode) |
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193 | { |
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194 | SUPER(SpaceBoundaries, XMLPort, xmlelement, mode); |
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195 | |
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196 | XMLPortParam(SpaceBoundaries, "maxDistance", setMaxDistance, getMaxDistance, xmlelement, mode); |
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197 | XMLPortParam(SpaceBoundaries, "warnDistance", setWarnDistance, getWarnDistance, xmlelement, mode); |
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198 | XMLPortParam(SpaceBoundaries, "showDistance", setShowDistance, getShowDistance, xmlelement, mode); |
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199 | XMLPortParam(SpaceBoundaries, "healthDecrease", setHealthDecrease, getHealthDecrease, xmlelement, mode); |
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200 | XMLPortParam(SpaceBoundaries, "reactionMode", setReaction, getReaction, xmlelement, mode); |
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201 | } |
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202 | |
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203 | void SpaceBoundaries::tick(float dt) |
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204 | { |
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205 | this->checkWhoIsIn(); |
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206 | this->removeAllBillboards(); |
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207 | |
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208 | float distance; |
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209 | bool humanItem; |
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210 | for( std::list<WeakPtr<Pawn> >::iterator current = pawnsIn_.begin(); current != pawnsIn_.end(); current++ ) |
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211 | { |
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212 | Pawn* currentPawn = current->get(); |
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213 | if( currentPawn && currentPawn->getNode() ) |
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214 | { |
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215 | distance = this->computeDistance(currentPawn); |
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216 | humanItem = this->isHumanPlayer(currentPawn); |
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217 | // orxout() << "Distance:" << distance << endl; // message for debugging |
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218 | if(distance > this->warnDistance_ && distance < this->maxDistance_) // Display warning |
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219 | { |
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220 | if(humanItem) |
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221 | { |
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222 | this->displayWarning("Attention! You are close to the boundary!"); |
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223 | } |
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224 | } |
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225 | if(/* humanItem &&*/ abs(this->maxDistance_ - distance) < this->showDistance_ ) |
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226 | { |
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227 | this->displayBoundaries(currentPawn, 1.0f - fabs(this->maxDistance_ - distance) / this->showDistance_); // Show the boundary |
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228 | } |
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229 | if(distance > this->maxDistance_ && (this->reaction_ == 1) ) |
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230 | { |
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231 | if( humanItem ) |
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232 | { |
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233 | // orxout() << "Health should be decreasing!" << endl; |
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234 | this->displayWarning("You are out of the area now!"); |
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235 | } |
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236 | currentPawn->removeHealth( (distance - this->maxDistance_) * this->healthDecrease_); |
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237 | } |
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238 | if( (this->reaction_ == 0) && (distance + 100 > this->maxDistance_)) // Exception: A Pawn can't move more than 100 units per tick. |
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239 | { |
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240 | this->conditionalBounceBack(currentPawn, distance, dt); |
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241 | } |
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242 | if( this->reaction_ == 2 && (distance - 100 < this->maxDistance_) ) |
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243 | { |
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244 | this->conditionalBounceBack(currentPawn, distance, dt); |
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245 | } |
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246 | } |
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247 | } |
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248 | } |
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249 | |
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250 | float SpaceBoundaries::computeDistance(WorldEntity *item) |
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251 | { |
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252 | if(item != NULL) |
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253 | { |
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254 | Vector3 itemPosition = item->getPosition(); |
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255 | return (itemPosition.distance(this->getPosition())); |
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256 | } else { |
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257 | return -1; |
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258 | } |
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259 | } |
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260 | |
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261 | void SpaceBoundaries::displayWarning(const std::string warnText) |
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262 | { |
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263 | // TODO |
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264 | } |
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265 | |
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266 | void SpaceBoundaries::displayBoundaries(Pawn *item, float alpha) |
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267 | { |
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268 | |
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269 | Vector3 direction = item->getPosition() - this->getPosition(); |
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270 | direction.normalise(); |
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271 | |
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272 | Vector3 boundaryPosition = this->getPosition() + direction * this->maxDistance_; |
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273 | |
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274 | this->positionBillboard(boundaryPosition, alpha); |
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275 | } |
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276 | |
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277 | void SpaceBoundaries::conditionalBounceBack(Pawn *item, float currentDistance, float dt) |
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278 | { |
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279 | Vector3 normal = item->getPosition() - this->getPosition(); |
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280 | normal.normalise(); |
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281 | Vector3 velocity = item->getVelocity(); |
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282 | float normalSpeed = item->getVelocity().dotProduct(normal); |
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283 | |
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284 | /* Check, whether the Pawn would leave the boundary in the next tick, if so send it back. */ |
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285 | if( this->reaction_ == 0 && currentDistance + normalSpeed * dt > this->maxDistance_ - 10 ) // -10: "security measure" |
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286 | { |
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287 | bounceBack(item, &normal, &velocity); |
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288 | } else if (this->reaction_ == 2 && currentDistance - normalSpeed * dt < this->maxDistance_ + 10 ) // 10: "security measure" |
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289 | { |
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290 | normal = normal * (-1); |
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291 | bounceBack(item, &normal, &velocity); |
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292 | } |
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293 | } |
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294 | |
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295 | void SpaceBoundaries::bounceBack(Pawn *item, Vector3 *normal, Vector3 *velocity) |
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296 | { |
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297 | float dampingFactor = 0.5; |
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298 | *velocity = velocity->reflect(*normal); |
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299 | Vector3 acceleration = item->getAcceleration(); |
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300 | acceleration = acceleration.reflect(*normal); |
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301 | |
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302 | item->lookAt( *velocity + this->getPosition() ); |
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303 | |
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304 | item->setAcceleration(acceleration * dampingFactor); |
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305 | item->setVelocity(*velocity * dampingFactor); |
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306 | |
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307 | item->setPosition( item->getPosition() - *normal * 10 ); // Set the position of the Pawn to be well inside the boundary. |
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308 | } |
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309 | |
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310 | bool SpaceBoundaries::isHumanPlayer(Pawn *item) |
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311 | { |
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312 | if(item != NULL) |
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313 | { |
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314 | if(item->getPlayer()) |
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315 | { |
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316 | return item->getPlayer()->isHumanPlayer(); |
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317 | } |
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318 | } |
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319 | return false; |
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320 | } |
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321 | |
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322 | } |
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