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 | * Sandro Sgier |
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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 | |
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30 | /** |
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31 | @file ShrinkPickup.cc |
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32 | @brief Implementation of the HealthPickup class. |
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33 | */ |
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34 | |
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35 | |
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36 | #include "ShrinkPickup.h" |
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37 | |
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38 | #include <sstream> |
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39 | #include "core/CoreIncludes.h" |
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40 | #include "core/XMLPort.h" |
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41 | |
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42 | #include "pickup/PickupIdentifier.h" |
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43 | #include "worldentities/pawns/Pawn.h" |
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44 | |
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45 | #include "worldentities/CameraPosition.h" |
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46 | |
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47 | namespace orxonox |
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48 | { |
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49 | CreateFactory(ShrinkPickup); |
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50 | |
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51 | /** |
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52 | @brief |
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53 | Constructor: Initializes the Pickup. |
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54 | */ |
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55 | ShrinkPickup::ShrinkPickup(BaseObject* creator) : Pickup(creator) |
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56 | { |
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57 | RegisterObject(ShrinkPickup); |
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58 | |
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59 | this->initialize(); |
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60 | } |
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61 | |
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62 | ShrinkPickup::~ShrinkPickup() |
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63 | { |
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64 | |
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65 | } |
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66 | |
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67 | void ShrinkPickup::initialize(void) |
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68 | { |
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69 | this->addTarget(ClassIdentifier<Pawn>::getIdentifier()); |
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70 | |
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71 | this->shrinkFactor_ = 5.0f; |
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72 | this->shrinkDuration_ = 5.0f; |
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73 | this->duration_ = 5.0f; |
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74 | |
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75 | this->isActive_ = false; |
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76 | this->isShrinking_ = false; |
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77 | this->isTerminating_ = false; |
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78 | |
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79 | this->timeRemainig_ = 0.0f; |
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80 | this->currentFactor_ = 1.0f; |
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81 | } |
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82 | |
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83 | void ShrinkPickup::initializeIdentifier(void) |
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84 | { |
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85 | this->pickupIdentifier_->addParameter("shrinkFactor", this->getShrinkFactor()); |
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86 | this->pickupIdentifier_->addParameter("duration", this->getDuration()); |
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87 | this->pickupIdentifier_->addParameter("shrinkDuration", this->getShrinkDuration()); |
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88 | } |
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89 | |
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90 | /** |
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91 | @brief |
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92 | Method for creating a ShrinkPickup object through XML. |
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93 | */ |
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94 | void ShrinkPickup::XMLPort(Element& xmlelement, orxonox::XMLPort::Mode mode) |
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95 | { |
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96 | SUPER(ShrinkPickup, XMLPort, xmlelement, mode); |
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97 | |
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98 | XMLPortParam(ShrinkPickup, "shrinkFactor", setShrinkFactor, getShrinkFactor, xmlelement, mode); |
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99 | XMLPortParam(ShrinkPickup, "duration", setDuration, getDuration, xmlelement, mode); |
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100 | XMLPortParam(ShrinkPickup, "shrinkDuration", setShrinkDuration, getShrinkDuration, xmlelement, mode); |
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101 | |
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102 | this->initializeIdentifier(); |
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103 | } |
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104 | |
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105 | /** |
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106 | @brief |
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107 | Prepares for shrinking. |
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108 | */ |
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109 | void ShrinkPickup::changedUsed(void) |
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110 | { |
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111 | SUPER(ShrinkPickup, changedUsed); |
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112 | |
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113 | if(this->isUsed()) |
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114 | { |
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115 | Pawn* pawn = this->carrierToPawnHelper(); |
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116 | if(pawn == NULL) // If the PickupCarrier is no Pawn, then this pickup is useless and therefore is destroyed. |
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117 | { |
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118 | this->Pickupable::destroy(); |
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119 | return; |
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120 | } |
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121 | |
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122 | this->currentFactor_ = 1.0f; |
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123 | this->timeRemainig_ = this->shrinkDuration_; |
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124 | |
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125 | this->isActive_ = true; // Start shrinking now. |
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126 | this->isShrinking_ = true; |
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127 | this->durationTimer_.setTimer(this->duration_, false, createExecutor(createFunctor(&ShrinkPickup::terminate, this))); //Set timer for termination. |
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128 | } |
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129 | if(!this->isUsed() && this->isActive_) |
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130 | this->isTerminating_ = true; |
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131 | } |
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132 | |
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133 | void ShrinkPickup::changedPickedUp(void) |
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134 | { |
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135 | SUPER(ShrinkPickup, changedPickedUp); |
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136 | |
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137 | if(!this->isPickedUp() && this->isActive_) |
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138 | { |
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139 | if(this->isShrinking_ || this->isTerminating_) |
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140 | { |
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141 | //TODO: Deploy particle effect. |
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142 | Pawn* pawn = this->carrierToPawnHelper(); |
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143 | if(pawn == NULL) // If the PickupCarrier is no Pawn, then this pickup is useless and therefore is destroyed. |
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144 | return; |
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145 | |
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146 | float factor = 1.0f/this->currentFactor_; |
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147 | |
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148 | pawn->setScale3D(pawn->getScale3D()*factor); |
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149 | pawn->setMass(pawn->getMass()*factor); |
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150 | |
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151 | // Iterate over all camera positions and inversely move the camera to create a shrinking sensation. |
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152 | const std::list< SmartPtr<CameraPosition> >& cameraPositions = pawn->getCameraPositions(); |
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153 | int size = cameraPositions.size(); |
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154 | for(int index = 0; index < size; index++) |
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155 | { |
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156 | CameraPosition* cameraPos = pawn->getCameraPosition(index); |
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157 | if(cameraPos == NULL) |
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158 | continue; |
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159 | cameraPos->setPosition(cameraPos->getPosition()/factor); |
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160 | } |
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161 | this->currentFactor_ = 1.0f; |
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162 | this->timeRemainig_ = this->shrinkDuration_; |
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163 | this->isActive_ = false; |
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164 | this->isShrinking_ = false; |
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165 | this->isTerminating_ = false; |
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166 | } |
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167 | else |
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168 | { |
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169 | //TODO: Deploy particle effect. |
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170 | Pawn* pawn = this->carrierToPawnHelper(); |
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171 | if(pawn == NULL) // If the PickupCarrier is no Pawn, then this pickup is useless and therefore is destroyed. |
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172 | return; |
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173 | |
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174 | pawn->setScale3D(pawn->getScale3D()*this->shrinkFactor_); |
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175 | pawn->setMass(pawn->getMass()*this->shrinkFactor_); |
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176 | |
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177 | // Iterate over all camera positions and inversely move the camera to create a shrinking sensation. |
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178 | const std::list< SmartPtr<CameraPosition> >& cameraPositions = pawn->getCameraPositions(); |
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179 | int size = cameraPositions.size(); |
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180 | for(int index = 0; index < size; index++) |
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181 | { |
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182 | CameraPosition* cameraPos = pawn->getCameraPosition(index); |
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183 | if(cameraPos == NULL) |
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184 | continue; |
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185 | cameraPos->setPosition(cameraPos->getPosition()/this->shrinkFactor_); |
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186 | } |
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187 | this->currentFactor_ = 1.0f; |
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188 | this->timeRemainig_ = this->shrinkDuration_; |
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189 | this->isActive_ = false; |
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190 | } |
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191 | } |
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192 | } |
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193 | |
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194 | /** |
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195 | @brief |
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196 | Updates the scales of the ship. |
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197 | @param dt |
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198 | Time since last call. |
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199 | */ |
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200 | void ShrinkPickup::tick(float dt) |
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201 | { |
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202 | if(this->isActive_) |
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203 | { |
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204 | if(this->isShrinking_) // If the ship has not reached the target scale, continue shrinking |
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205 | { |
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206 | Pawn* pawn = this->carrierToPawnHelper(); |
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207 | if(pawn == NULL) // If the PickupCarrier is no Pawn, then this pickup is useless and therefore is destroyed. |
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208 | { |
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209 | this->Pickupable::destroy(); |
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210 | return; |
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211 | } |
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212 | |
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213 | this->timeRemainig_ -= dt; |
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214 | |
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215 | // Calculate the scaling factor by which the initial size would have to be scaled to have the current scale. |
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216 | float currentFactor = std::max(1 - (1-std::max(this->timeRemainig_, 0.0f)/this->shrinkDuration_)*(1-1/this->shrinkFactor_), 1/this->shrinkFactor_); |
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217 | // Calculate the factor by which the previous size has to be scaled to be the current scale. |
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218 | float factor = currentFactor/this->currentFactor_; |
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219 | this->currentFactor_ = currentFactor; |
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220 | |
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221 | // Stop shrinking if the desired size is reached. |
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222 | if(this->timeRemainig_ <= 0.0f) |
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223 | { |
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224 | this->timeRemainig_ = this->shrinkDuration_; // Reset the time remaining for when we start to grow the ship again. |
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225 | this->currentFactor_ = 1/this->shrinkFactor_; |
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226 | this->isShrinking_ = false; |
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227 | } |
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228 | |
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229 | pawn->setScale3D(pawn->getScale3D()*factor); |
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230 | pawn->setMass(pawn->getMass()*factor); |
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231 | |
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232 | // Iterate over all camera positions and inversely move the camera to create a shrinking sensation. |
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233 | const std::list< SmartPtr<CameraPosition> >& cameraPositions = pawn->getCameraPositions(); |
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234 | int size = cameraPositions.size(); |
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235 | for(int index = 0; index < size; index++) |
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236 | { |
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237 | CameraPosition* cameraPos = pawn->getCameraPosition(index); |
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238 | if(cameraPos == NULL) |
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239 | continue; |
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240 | cameraPos->setPosition(cameraPos->getPosition()/factor); |
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241 | } |
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242 | |
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243 | } |
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244 | else if(this->isTerminating_) // Grow until the ship reaches its default scale. |
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245 | { |
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246 | Pawn* pawn = this->carrierToPawnHelper(); |
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247 | if(pawn == NULL) // If the PickupCarrier is no Pawn, then this pickup is useless and therefore is destroyed. |
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248 | this->Pickupable::destroy(); |
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249 | |
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250 | this->timeRemainig_ -= dt; |
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251 | |
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252 | // Calculate the scaling factor by which the initial size would have to be scaled to have the current scale. |
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253 | float currentFactor = std::min(1/this->shrinkFactor_ + (1-std::max(this->timeRemainig_, 0.0f)/this->shrinkDuration_)*(1-1/this->shrinkFactor_), 1.0f); |
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254 | // Calculate the factor by which the previous size has to be scaled to be the current scale. |
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255 | float factor = currentFactor/this->currentFactor_; |
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256 | this->currentFactor_ = currentFactor; |
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257 | |
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258 | bool destroy = false; |
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259 | |
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260 | // Stop shrinking if the desired size is reached. |
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261 | if(this->timeRemainig_ <= 0.0f) |
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262 | { |
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263 | this->timeRemainig_ = shrinkDuration_; // Reset the time remaining for when we start to grow the ship again. |
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264 | this->currentFactor_ = 1.0f; |
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265 | this->isTerminating_ = false; |
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266 | this->isActive_ = false; |
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267 | destroy = true; |
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268 | } |
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269 | |
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270 | pawn->setScale3D(pawn->getScale3D()*factor); |
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271 | pawn->setMass(pawn->getMass()*factor); |
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272 | |
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273 | // Iterate over all camera positions and inversely move the camera to create a shrinking sensation. |
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274 | const std::list< SmartPtr<CameraPosition> >& cameraPositions = pawn->getCameraPositions(); |
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275 | int size = cameraPositions.size(); |
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276 | for(int index = 0; index < size; index++) |
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277 | { |
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278 | CameraPosition* cameraPos = pawn->getCameraPosition(index); |
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279 | if(cameraPos == NULL) |
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280 | continue; |
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281 | cameraPos->setPosition(cameraPos->getPosition()/factor); |
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282 | } |
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283 | |
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284 | if(destroy) |
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285 | this->Pickupable::destroy(); |
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286 | } |
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287 | } |
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288 | } |
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289 | |
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290 | /** |
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291 | @brief |
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292 | Initializes the termination. |
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293 | */ |
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294 | void ShrinkPickup::terminate(void) |
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295 | { |
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296 | this->setUsed(false); |
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297 | } |
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298 | |
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299 | Pawn* ShrinkPickup::carrierToPawnHelper(void) |
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300 | { |
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301 | PickupCarrier* carrier = this->getCarrier(); |
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302 | Pawn* pawn = orxonox_cast<Pawn*>(carrier); |
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303 | |
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304 | return pawn; |
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305 | } |
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306 | |
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307 | /** |
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308 | @brief |
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309 | Creates a duplicate of the input OrxonoxClass. |
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310 | @param item |
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311 | A pointer to the Orxonox class. |
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312 | */ |
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313 | void ShrinkPickup::clone(OrxonoxClass*& item) |
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314 | { |
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315 | if(item == NULL) |
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316 | item = new ShrinkPickup(this); |
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317 | |
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318 | SUPER(ShrinkPickup, clone, item); |
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319 | ShrinkPickup* pickup = orxonox_cast<ShrinkPickup*>(item); |
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320 | pickup->setShrinkFactor(this->getShrinkFactor()); |
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321 | pickup->setDuration(this->getDuration()); |
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322 | pickup->setShrinkDuration(this->getShrinkDuration()); |
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323 | |
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324 | pickup->initializeIdentifier(); |
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325 | } |
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326 | } |
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