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 | * Reto Grieder |
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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 | @file |
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31 | @brief |
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32 | Implementation of the InputManager and a static variable from the InputHandler. |
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33 | */ |
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34 | |
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35 | #include "InputManager.h" |
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36 | |
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37 | #include <cassert> |
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38 | #include <climits> |
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39 | #include <ois/OISException.h> |
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40 | #include <ois/OISInputManager.h> |
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41 | #include <boost/foreach.hpp> |
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42 | |
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43 | #include "util/Clock.h" |
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44 | #include "util/Convert.h" |
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45 | #include "util/Exception.h" |
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46 | #include "util/ScopeGuard.h" |
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47 | #include "core/CoreIncludes.h" |
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48 | #include "core/ConfigValueIncludes.h" |
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49 | #include "core/ConsoleCommand.h" |
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50 | #include "core/CommandLineParser.h" |
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51 | #include "core/Functor.h" |
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52 | #include "core/GraphicsManager.h" |
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53 | |
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54 | #include "InputBuffer.h" |
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55 | #include "JoyStick.h" |
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56 | #include "JoyStickQuantityListener.h" |
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57 | #include "Mouse.h" |
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58 | #include "Keyboard.h" |
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59 | |
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60 | namespace orxonox |
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61 | { |
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62 | SetCommandLineSwitch(keyboard_no_grab).information("Whether not to exclusively grab the keyboard"); |
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63 | |
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64 | // Abuse of this source file for the InputHandler |
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65 | InputHandler InputHandler::EMPTY; |
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66 | |
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67 | InputManager* InputManager::singletonPtr_s = 0; |
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68 | |
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69 | //! Defines the |= operator for easier use. |
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70 | inline InputManager::State operator|=(InputManager::State& lval, InputManager::State rval) |
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71 | { |
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72 | return (lval = (InputManager::State)(lval | rval)); |
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73 | } |
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74 | |
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75 | //! Defines the &= operator for easier use. |
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76 | inline InputManager::State operator&=(InputManager::State& lval, int rval) |
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77 | { |
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78 | return (lval = (InputManager::State)(lval & rval)); |
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79 | } |
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80 | |
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81 | // ############################################################ |
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82 | // ##### Initialisation ##### |
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83 | // ########## ########## |
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84 | // ############################################################ |
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85 | InputManager::InputManager() |
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86 | : internalState_(Bad) |
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87 | , oisInputManager_(0) |
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88 | , devices_(2) |
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89 | , mouseMode_(MouseMode::Nonexclusive) |
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90 | , emptyState_(0) |
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91 | , calibratorCallbackHandler_(0) |
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92 | { |
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93 | RegisterRootObject(InputManager); |
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94 | |
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95 | CCOUT(4) << "Constructing..." << std::endl; |
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96 | |
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97 | this->setConfigValues(); |
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98 | |
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99 | if (GraphicsManager::getInstance().isFullScreen()) |
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100 | mouseMode_ = MouseMode::Exclusive; |
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101 | this->loadDevices(); |
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102 | |
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103 | // Lowest priority empty InputState |
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104 | emptyState_ = createInputState("empty", false, false, InputStatePriority::Empty); |
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105 | emptyState_->setHandler(&InputHandler::EMPTY); |
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106 | activeStates_[emptyState_->getPriority()] = emptyState_; |
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107 | |
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108 | // Joy stick calibration helper callback |
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109 | InputState* calibrator = createInputState("calibrator", false, false, InputStatePriority::Calibrator); |
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110 | calibrator->setHandler(&InputHandler::EMPTY); |
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111 | calibratorCallbackHandler_ = new InputBuffer(); |
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112 | calibratorCallbackHandler_->registerListener(this, &InputManager::stopCalibration, '\r', true); |
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113 | calibrator->setKeyHandler(calibratorCallbackHandler_); |
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114 | |
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115 | this->updateActiveStates(); |
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116 | |
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117 | // calibrate console command |
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118 | this->getIdentifier()->addConsoleCommand(createConsoleCommand(createFunctor(&InputManager::calibrate, this), "calibrate"), true); |
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119 | // reload console command |
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120 | this->getIdentifier()->addConsoleCommand(createConsoleCommand(createFunctor(&InputManager::reload, this), "reload"), false); |
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121 | |
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122 | CCOUT(4) << "Construction complete." << std::endl; |
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123 | internalState_ = Nothing; |
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124 | } |
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125 | |
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126 | void InputManager::setConfigValues() |
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127 | { |
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128 | } |
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129 | |
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130 | /** |
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131 | @brief |
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132 | Creates the OIS::InputMananger, the keyboard, the mouse and |
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133 | the joys ticks. If either of the first two fail, this method throws an exception. |
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134 | @param windowWidth |
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135 | The width of the render window |
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136 | @param windowHeight |
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137 | The height of the render window |
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138 | */ |
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139 | void InputManager::loadDevices() |
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140 | { |
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141 | CCOUT(4) << "Loading input devices..." << std::endl; |
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142 | |
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143 | // When loading the devices they should not already be loaded |
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144 | assert(internalState_ & Bad); |
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145 | assert(devices_[InputDeviceEnumerator::Mouse] == 0); |
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146 | assert(devices_[InputDeviceEnumerator::Keyboard] == 0); |
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147 | assert(devices_.size() == InputDeviceEnumerator::FirstJoyStick); |
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148 | |
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149 | // Fill parameter list |
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150 | OIS::ParamList paramList; |
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151 | size_t windowHnd = GraphicsManager::getInstance().getRenderWindowHandle(); |
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152 | paramList.insert(std::make_pair("WINDOW", multi_cast<std::string>(windowHnd))); |
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153 | #if defined(ORXONOX_PLATFORM_WINDOWS) |
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154 | paramList.insert(std::make_pair("w32_keyboard", "DISCL_NONEXCLUSIVE")); |
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155 | paramList.insert(std::make_pair("w32_keyboard", "DISCL_FOREGROUND")); |
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156 | paramList.insert(std::make_pair("w32_mouse", "DISCL_FOREGROUND")); |
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157 | if (mouseMode_ == MouseMode::Exclusive || GraphicsManager::getInstance().isFullScreen()) |
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158 | { |
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159 | // Disable Windows key plus special keys (like play, stop, next, etc.) |
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160 | paramList.insert(std::make_pair("w32_keyboard", "DISCL_NOWINKEY")); |
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161 | paramList.insert(std::make_pair("w32_mouse", "DISCL_EXCLUSIVE")); |
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162 | } |
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163 | else |
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164 | paramList.insert(std::make_pair("w32_mouse", "DISCL_NONEXCLUSIVE")); |
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165 | #elif defined(ORXONOX_PLATFORM_LINUX) |
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166 | // Enabling this is probably a bad idea, but whenever orxonox crashes, the setting stays on |
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167 | // Trouble might be that the Pressed event occurs a bit too often... |
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168 | paramList.insert(std::make_pair("XAutoRepeatOn", "true")); |
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169 | |
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170 | if (mouseMode_ == MouseMode::Exclusive || GraphicsManager::getInstance().isFullScreen()) |
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171 | { |
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172 | if (CommandLineParser::getValue("keyboard_no_grab").getBool()) |
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173 | paramList.insert(std::make_pair("x11_keyboard_grab", "false")); |
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174 | else |
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175 | paramList.insert(std::make_pair("x11_keyboard_grab", "true")); |
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176 | paramList.insert(std::make_pair("x11_mouse_grab", "true")); |
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177 | paramList.insert(std::make_pair("x11_mouse_hide", "true")); |
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178 | } |
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179 | else |
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180 | { |
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181 | paramList.insert(std::make_pair("x11_keyboard_grab", "false")); |
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182 | paramList.insert(std::make_pair("x11_mouse_grab", "false")); |
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183 | paramList.insert(std::make_pair("x11_mouse_hide", "false")); |
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184 | } |
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185 | #endif |
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186 | |
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187 | try |
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188 | { |
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189 | oisInputManager_ = OIS::InputManager::createInputSystem(paramList); |
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190 | // Exception-safety |
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191 | Loki::ScopeGuard guard = Loki::MakeGuard(OIS::InputManager::destroyInputSystem, oisInputManager_); |
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192 | CCOUT(ORX_DEBUG) << "Created OIS input manager." << std::endl; |
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193 | |
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194 | if (oisInputManager_->getNumberOfDevices(OIS::OISKeyboard) > 0) |
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195 | devices_[InputDeviceEnumerator::Keyboard] = new Keyboard(InputDeviceEnumerator::Keyboard, oisInputManager_); |
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196 | else |
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197 | ThrowException(InitialisationFailed, "InputManager: No keyboard found, cannot proceed!"); |
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198 | |
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199 | // Successful initialisation |
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200 | guard.Dismiss(); |
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201 | } |
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202 | catch (const std::exception& ex) |
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203 | { |
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204 | oisInputManager_ = NULL; |
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205 | internalState_ |= Bad; |
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206 | ThrowException(InitialisationFailed, "Could not initialise the input system: " << ex.what()); |
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207 | } |
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208 | |
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209 | this->loadMouse(); |
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210 | this->loadJoySticks(); |
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211 | |
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212 | // Reorder states in case some joy sticks were added/removed |
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213 | this->updateActiveStates(); |
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214 | |
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215 | CCOUT(4) << "Input devices loaded." << std::endl; |
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216 | } |
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217 | |
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218 | //! Creates a new orxonox::Mouse |
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219 | void InputManager::loadMouse() |
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220 | { |
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221 | if (oisInputManager_->getNumberOfDevices(OIS::OISMouse) > 0) |
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222 | { |
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223 | try |
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224 | { |
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225 | devices_[InputDeviceEnumerator::Mouse] = new Mouse(InputDeviceEnumerator::Mouse, oisInputManager_); |
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226 | } |
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227 | catch (const std::exception& ex) |
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228 | { |
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229 | CCOUT(2) << "Warning: Failed to create Mouse:" << ex.what() << std::endl |
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230 | << "Proceeding without mouse support." << std::endl; |
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231 | } |
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232 | } |
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233 | else |
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234 | CCOUT(ORX_WARNING) << "Warning: No mouse found! Proceeding without mouse support." << std::endl; |
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235 | } |
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236 | |
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237 | //! Creates as many joy sticks as are available. |
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238 | void InputManager::loadJoySticks() |
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239 | { |
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240 | for (int i = 0; i < oisInputManager_->getNumberOfDevices(OIS::OISJoyStick); i++) |
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241 | { |
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242 | try |
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243 | { |
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244 | devices_.push_back(new JoyStick(InputDeviceEnumerator::FirstJoyStick + i, oisInputManager_)); |
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245 | } |
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246 | catch (const std::exception& ex) |
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247 | { |
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248 | CCOUT(2) << "Warning: Failed to create joy stick: " << ex.what() << std::endl; |
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249 | } |
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250 | } |
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251 | |
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252 | // inform all JoyStick Device Number Listeners |
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253 | std::vector<JoyStick*> joyStickList; |
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254 | for (unsigned int i = InputDeviceEnumerator::FirstJoyStick; i < devices_.size(); ++i) |
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255 | joyStickList.push_back(static_cast<JoyStick*>(devices_[i])); |
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256 | JoyStickQuantityListener::changeJoyStickQuantity(joyStickList); |
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257 | } |
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258 | |
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259 | // ############################################################ |
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260 | // ##### Destruction ##### |
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261 | // ########## ########## |
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262 | // ############################################################ |
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263 | |
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264 | InputManager::~InputManager() |
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265 | { |
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266 | CCOUT(3) << "Destroying..." << std::endl; |
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267 | |
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268 | // Destroy calibrator helper handler and state |
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269 | this->destroyState("calibrator"); |
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270 | // Destroy KeyDetector and state |
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271 | calibratorCallbackHandler_->destroy(); |
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272 | // destroy the empty InputState |
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273 | this->destroyStateInternal(this->emptyState_); |
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274 | |
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275 | // destroy all user InputStates |
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276 | while (statesByName_.size() > 0) |
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277 | this->destroyStateInternal((*statesByName_.rbegin()).second); |
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278 | |
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279 | if (!(internalState_ & Bad)) |
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280 | this->destroyDevices(); |
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281 | |
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282 | CCOUT(3) << "Destruction complete." << std::endl; |
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283 | } |
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284 | |
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285 | /** |
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286 | @brief |
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287 | Destoys all input devices (joy sticks, mouse, keyboard and OIS::InputManager) |
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288 | @throw |
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289 | Method does not throw |
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290 | */ |
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291 | void InputManager::destroyDevices() |
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292 | { |
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293 | CCOUT(4) << "Destroying devices..." << std::endl; |
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294 | |
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295 | BOOST_FOREACH(InputDevice*& device, devices_) |
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296 | { |
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297 | if (device == NULL) |
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298 | continue; |
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299 | std::string className = device->getClassName(); |
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300 | try |
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301 | { |
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302 | delete device; |
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303 | device = 0; |
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304 | CCOUT(4) << className << " destroyed." << std::endl; |
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305 | } |
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306 | catch (...) |
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307 | { |
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308 | COUT(1) << className << " destruction failed: " << Exception::handleMessage() << std::endl |
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309 | << " Potential resource leak!" << std::endl; |
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310 | } |
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311 | } |
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312 | devices_.resize(InputDeviceEnumerator::FirstJoyStick); |
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313 | |
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314 | assert(oisInputManager_ != NULL); |
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315 | try |
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316 | { |
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317 | OIS::InputManager::destroyInputSystem(oisInputManager_); |
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318 | } |
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319 | catch (...) |
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320 | { |
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321 | COUT(1) << "OIS::InputManager destruction failed" << Exception::handleMessage() << std::endl |
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322 | << " Potential resource leak!" << std::endl; |
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323 | } |
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324 | oisInputManager_ = NULL; |
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325 | |
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326 | internalState_ |= Bad; |
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327 | CCOUT(4) << "Destroyed devices." << std::endl; |
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328 | } |
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329 | |
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330 | // ############################################################ |
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331 | // ##### Reloading ##### |
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332 | // ########## ########## |
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333 | // ############################################################ |
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334 | |
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335 | void InputManager::reload() |
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336 | { |
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337 | if (internalState_ & Ticking) |
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338 | { |
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339 | // We cannot destroy OIS right now, because reload was probably |
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340 | // caused by a user clicking on a GUI item. The stack trace would then |
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341 | // include an OIS method. So it would be a very bad thing to destroy it.. |
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342 | internalState_ |= ReloadRequest; |
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343 | } |
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344 | else if (internalState_ & Calibrating) |
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345 | CCOUT(2) << "Warning: Cannot reload input system. Joy sticks are currently being calibrated." << std::endl; |
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346 | else |
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347 | reloadInternal(); |
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348 | } |
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349 | |
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350 | //! Internal reload method. Destroys the OIS devices and loads them again. |
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351 | void InputManager::reloadInternal() |
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352 | { |
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353 | CCOUT(3) << "Reloading ..." << std::endl; |
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354 | |
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355 | this->destroyDevices(); |
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356 | this->loadDevices(); |
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357 | |
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358 | internalState_ &= ~Bad; |
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359 | internalState_ &= ~ReloadRequest; |
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360 | CCOUT(4) << "Reloading complete." << std::endl; |
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361 | } |
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362 | |
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363 | // ############################################################ |
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364 | // ##### Runtime Methods ##### |
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365 | // ########## ########## |
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366 | // ############################################################ |
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367 | |
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368 | void InputManager::update(const Clock& time) |
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369 | { |
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370 | if (internalState_ & Bad) |
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371 | ThrowException(General, "InputManager was not correctly reloaded."); |
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372 | |
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373 | else if (internalState_ & ReloadRequest) |
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374 | reloadInternal(); |
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375 | |
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376 | // check for states to leave |
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377 | if (!stateLeaveRequests_.empty()) |
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378 | { |
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379 | for (std::set<InputState*>::iterator it = stateLeaveRequests_.begin(); |
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380 | it != stateLeaveRequests_.end(); ++it) |
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381 | { |
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382 | (*it)->left(); |
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383 | // just to be sure that the state actually is registered |
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384 | assert(statesByName_.find((*it)->getName()) != statesByName_.end()); |
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385 | |
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386 | activeStates_.erase((*it)->getPriority()); |
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387 | if ((*it)->getPriority() < InputStatePriority::HighPriority) |
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388 | (*it)->setPriority(0); |
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389 | updateActiveStates(); |
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390 | } |
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391 | stateLeaveRequests_.clear(); |
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392 | } |
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393 | |
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394 | // check for states to enter |
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395 | if (!stateEnterRequests_.empty()) |
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396 | { |
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397 | for (std::set<InputState*>::const_iterator it = stateEnterRequests_.begin(); |
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398 | it != stateEnterRequests_.end(); ++it) |
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399 | { |
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400 | // just to be sure that the state actually is registered |
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401 | assert(statesByName_.find((*it)->getName()) != statesByName_.end()); |
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402 | |
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403 | if ((*it)->getPriority() == 0) |
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404 | { |
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405 | // Get smallest possible priority between 1 and maxStateStackSize_s |
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406 | for(std::map<int, InputState*>::reverse_iterator rit = activeStates_.rbegin(); |
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407 | rit != activeStates_.rend(); ++rit) |
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408 | { |
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409 | if (rit->first < InputStatePriority::HighPriority) |
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410 | { |
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411 | (*it)->setPriority(rit->first + 1); |
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412 | break; |
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413 | } |
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414 | } |
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415 | // In case no normal handler was on the stack |
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416 | if ((*it)->getPriority() == 0) |
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417 | (*it)->setPriority(1); |
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418 | } |
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419 | activeStates_[(*it)->getPriority()] = (*it); |
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420 | updateActiveStates(); |
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421 | (*it)->entered(); |
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422 | } |
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423 | stateEnterRequests_.clear(); |
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424 | } |
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425 | |
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426 | // check for states to destroy |
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427 | if (!stateDestroyRequests_.empty()) |
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428 | { |
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429 | for (std::set<InputState*>::iterator it = stateDestroyRequests_.begin(); |
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430 | it != stateDestroyRequests_.end(); ++it) |
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431 | { |
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432 | destroyStateInternal((*it)); |
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433 | } |
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434 | stateDestroyRequests_.clear(); |
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435 | } |
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436 | |
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437 | // check whether a state has changed its EMPTY situation |
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438 | bool bUpdateRequired = false; |
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439 | for (std::map<int, InputState*>::iterator it = activeStates_.begin(); it != activeStates_.end(); ++it) |
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440 | { |
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441 | if (it->second->hasExpired()) |
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442 | { |
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443 | it->second->resetExpiration(); |
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444 | bUpdateRequired = true; |
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445 | } |
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446 | } |
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447 | if (bUpdateRequired) |
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448 | updateActiveStates(); |
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449 | |
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450 | // mark that we now start capturing and distributing input |
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451 | internalState_ |= Ticking; |
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452 | |
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453 | // Capture all the input and handle it |
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454 | BOOST_FOREACH(InputDevice* device, devices_) |
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455 | if (device != NULL) |
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456 | device->update(time); |
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457 | |
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458 | // Update the states |
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459 | for (unsigned int i = 0; i < activeStatesTicked_.size(); ++i) |
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460 | activeStatesTicked_[i]->update(time.getDeltaTime()); |
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461 | |
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462 | internalState_ &= ~Ticking; |
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463 | } |
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464 | |
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465 | /** |
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466 | @brief |
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467 | Updates the currently active states (according to activeStates_) for each device. |
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468 | Also, a list of all active states (no duplicates!) is compiled for the general update(). |
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469 | */ |
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470 | void InputManager::updateActiveStates() |
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471 | { |
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472 | assert((internalState_ & InputManager::Ticking) == 0); |
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473 | // temporary resize |
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474 | for (unsigned int i = 0; i < devices_.size(); ++i) |
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475 | { |
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476 | if (devices_[i] == NULL) |
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477 | continue; |
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478 | std::vector<InputState*>& states = devices_[i]->getStateListRef(); |
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479 | bool occupied = false; |
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480 | states.clear(); |
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481 | for (std::map<int, InputState*>::reverse_iterator rit = activeStates_.rbegin(); rit != activeStates_.rend(); ++rit) |
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482 | { |
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483 | if (rit->second->isInputDeviceEnabled(i) && (!occupied || rit->second->bAlwaysGetsInput_)) |
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484 | { |
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485 | states.push_back(rit->second); |
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486 | if (!rit->second->bTransparent_) |
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487 | occupied = true; |
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488 | } |
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489 | } |
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490 | } |
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491 | |
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492 | // update tickables (every state will only appear once) |
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493 | // Using a std::set to avoid duplicates |
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494 | std::set<InputState*> tempSet; |
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495 | for (unsigned int i = 0; i < devices_.size(); ++i) |
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496 | if (devices_[i] != NULL) |
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497 | for (unsigned int iState = 0; iState < devices_[i]->getStateListRef().size(); ++iState) |
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498 | tempSet.insert(devices_[i]->getStateListRef()[iState]); |
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499 | |
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500 | // copy the content of the std::set back to the actual vector |
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501 | activeStatesTicked_.clear(); |
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502 | for (std::set<InputState*>::const_iterator it = tempSet.begin();it != tempSet.end(); ++it) |
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503 | activeStatesTicked_.push_back(*it); |
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504 | |
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505 | // Check whether we have to change the mouse mode |
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506 | MouseMode::Value requestedMode = MouseMode::Dontcare; |
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507 | std::vector<InputState*>& mouseStates = devices_[InputDeviceEnumerator::Mouse]->getStateListRef(); |
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508 | if (mouseStates.empty()) |
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509 | requestedMode = MouseMode::Nonexclusive; |
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510 | else |
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511 | requestedMode = mouseStates.front()->getMouseMode(); |
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512 | if (requestedMode != MouseMode::Dontcare && mouseMode_ != requestedMode) |
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513 | { |
---|
514 | mouseMode_ = requestedMode; |
---|
515 | if (!GraphicsManager::getInstance().isFullScreen()) |
---|
516 | this->reloadInternal(); |
---|
517 | } |
---|
518 | } |
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519 | |
---|
520 | void InputManager::clearBuffers() |
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521 | { |
---|
522 | BOOST_FOREACH(InputDevice* device, devices_) |
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523 | if (device != NULL) |
---|
524 | device->clearBuffers(); |
---|
525 | } |
---|
526 | |
---|
527 | void InputManager::calibrate() |
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528 | { |
---|
529 | COUT(0) << "Move all joy stick axes fully in all directions." << std::endl |
---|
530 | << "When done, put the axex in the middle position and press enter." << std::endl; |
---|
531 | |
---|
532 | BOOST_FOREACH(InputDevice* device, devices_) |
---|
533 | if (device != NULL) |
---|
534 | device->startCalibration(); |
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535 | |
---|
536 | internalState_ |= Calibrating; |
---|
537 | enterState("calibrator"); |
---|
538 | } |
---|
539 | |
---|
540 | //! Tells all devices to stop the calibration and evaluate it. Buffers are being cleared as well! |
---|
541 | void InputManager::stopCalibration() |
---|
542 | { |
---|
543 | BOOST_FOREACH(InputDevice* device, devices_) |
---|
544 | if (device != NULL) |
---|
545 | device->stopCalibration(); |
---|
546 | |
---|
547 | // restore old input state |
---|
548 | leaveState("calibrator"); |
---|
549 | internalState_ &= ~Calibrating; |
---|
550 | // Clear buffers to prevent button hold events |
---|
551 | this->clearBuffers(); |
---|
552 | |
---|
553 | COUT(0) << "Calibration has been stored." << std::endl; |
---|
554 | } |
---|
555 | |
---|
556 | //! Gets called by WindowEventListener upon focus change --> clear buffers |
---|
557 | void InputManager::windowFocusChanged() |
---|
558 | { |
---|
559 | this->clearBuffers(); |
---|
560 | } |
---|
561 | |
---|
562 | std::pair<int, int> InputManager::getMousePosition() const |
---|
563 | { |
---|
564 | Mouse* mouse = static_cast<Mouse*>(devices_[InputDeviceEnumerator::Mouse]); |
---|
565 | if (mouse != NULL) |
---|
566 | { |
---|
567 | const OIS::MouseState state = mouse->getOISDevice()->getMouseState(); |
---|
568 | return std::make_pair(state.X.abs, state.Y.abs); |
---|
569 | } |
---|
570 | else |
---|
571 | return std::make_pair(0, 0); |
---|
572 | } |
---|
573 | |
---|
574 | // ############################################################ |
---|
575 | // ##### Input States ##### |
---|
576 | // ########## ########## |
---|
577 | // ############################################################ |
---|
578 | |
---|
579 | InputState* InputManager::createInputState(const std::string& name, bool bAlwaysGetsInput, bool bTransparent, InputStatePriority priority) |
---|
580 | { |
---|
581 | if (name == "") |
---|
582 | return 0; |
---|
583 | if (statesByName_.find(name) == statesByName_.end()) |
---|
584 | { |
---|
585 | if (priority >= InputStatePriority::HighPriority || priority == InputStatePriority::Empty) |
---|
586 | { |
---|
587 | // Make sure we don't add two high priority states with the same priority |
---|
588 | for (std::map<std::string, InputState*>::const_iterator it = this->statesByName_.begin(); |
---|
589 | it != this->statesByName_.end(); ++it) |
---|
590 | { |
---|
591 | if (it->second->getPriority() == priority) |
---|
592 | { |
---|
593 | COUT(2) << "Warning: Could not add an InputState with the same priority '" |
---|
594 | << static_cast<int>(priority) << "' != 0." << std::endl; |
---|
595 | return 0; |
---|
596 | } |
---|
597 | } |
---|
598 | } |
---|
599 | InputState* state = new InputState(name, bAlwaysGetsInput, bTransparent, priority); |
---|
600 | statesByName_[name] = state; |
---|
601 | |
---|
602 | return state; |
---|
603 | } |
---|
604 | else |
---|
605 | { |
---|
606 | COUT(2) << "Warning: Could not add an InputState with the same name '" << name << "'." << std::endl; |
---|
607 | return 0; |
---|
608 | } |
---|
609 | } |
---|
610 | |
---|
611 | InputState* InputManager::getState(const std::string& name) |
---|
612 | { |
---|
613 | std::map<std::string, InputState*>::iterator it = statesByName_.find(name); |
---|
614 | if (it != statesByName_.end()) |
---|
615 | return it->second; |
---|
616 | else |
---|
617 | return 0; |
---|
618 | } |
---|
619 | |
---|
620 | bool InputManager::enterState(const std::string& name) |
---|
621 | { |
---|
622 | // get pointer from the map with all stored handlers |
---|
623 | std::map<std::string, InputState*>::const_iterator it = statesByName_.find(name); |
---|
624 | if (it != statesByName_.end()) |
---|
625 | { |
---|
626 | // exists |
---|
627 | if (activeStates_.find(it->second->getPriority()) == activeStates_.end()) |
---|
628 | { |
---|
629 | // not active |
---|
630 | if (stateDestroyRequests_.find(it->second) == stateDestroyRequests_.end()) |
---|
631 | { |
---|
632 | // not scheduled for destruction |
---|
633 | // prevents a state being added multiple times |
---|
634 | stateEnterRequests_.insert(it->second); |
---|
635 | return true; |
---|
636 | } |
---|
637 | } |
---|
638 | } |
---|
639 | return false; |
---|
640 | } |
---|
641 | |
---|
642 | bool InputManager::leaveState(const std::string& name) |
---|
643 | { |
---|
644 | if (name == "empty") |
---|
645 | { |
---|
646 | COUT(2) << "InputManager: Leaving the empty state is not allowed!" << std::endl; |
---|
647 | return false; |
---|
648 | } |
---|
649 | // get pointer from the map with all stored handlers |
---|
650 | std::map<std::string, InputState*>::const_iterator it = statesByName_.find(name); |
---|
651 | if (it != statesByName_.end()) |
---|
652 | { |
---|
653 | // exists |
---|
654 | if (activeStates_.find(it->second->getPriority()) != activeStates_.end()) |
---|
655 | { |
---|
656 | // active |
---|
657 | stateLeaveRequests_.insert(it->second); |
---|
658 | return true; |
---|
659 | } |
---|
660 | } |
---|
661 | return false; |
---|
662 | } |
---|
663 | |
---|
664 | bool InputManager::destroyState(const std::string& name) |
---|
665 | { |
---|
666 | if (name == "empty") |
---|
667 | { |
---|
668 | COUT(2) << "InputManager: Removing the empty state is not allowed!" << std::endl; |
---|
669 | return false; |
---|
670 | } |
---|
671 | std::map<std::string, InputState*>::iterator it = statesByName_.find(name); |
---|
672 | if (it != statesByName_.end()) |
---|
673 | { |
---|
674 | if (activeStates_.find(it->second->getPriority()) != activeStates_.end()) |
---|
675 | { |
---|
676 | // The state is still active. We have to postpone |
---|
677 | stateLeaveRequests_.insert(it->second); |
---|
678 | stateDestroyRequests_.insert(it->second); |
---|
679 | } |
---|
680 | else if (this->internalState_ & Ticking) |
---|
681 | { |
---|
682 | // cannot remove state while ticking |
---|
683 | stateDestroyRequests_.insert(it->second); |
---|
684 | } |
---|
685 | else |
---|
686 | destroyStateInternal(it->second); |
---|
687 | |
---|
688 | return true; |
---|
689 | } |
---|
690 | return false; |
---|
691 | } |
---|
692 | |
---|
693 | //! Destroys an InputState internally. |
---|
694 | void InputManager::destroyStateInternal(InputState* state) |
---|
695 | { |
---|
696 | assert(state && !(this->internalState_ & Ticking)); |
---|
697 | std::map<int, InputState*>::iterator it = this->activeStates_.find(state->getPriority()); |
---|
698 | if (it != this->activeStates_.end()) |
---|
699 | { |
---|
700 | this->activeStates_.erase(it); |
---|
701 | updateActiveStates(); |
---|
702 | } |
---|
703 | statesByName_.erase(state->getName()); |
---|
704 | state->destroy(); |
---|
705 | } |
---|
706 | } |
---|