1 | /* |
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2 | orxonox - the future of 3D-vertical-scrollers |
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3 | |
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4 | Copyright (C) 2004 orx |
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5 | |
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6 | This program is free software; you can redistribute it and/or modify |
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7 | it under the terms of the GNU General Public License as published by |
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8 | the Free Software Foundation; either version 2, or (at your option) |
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9 | any later version. |
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10 | |
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11 | ### File Specific: |
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12 | main-programmer: Patrick Boenzli |
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13 | co-programmer: |
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14 | |
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15 | This code is inspired by Christian Meyers CommandNode code (in Orxonox v0.2.3) |
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16 | */ |
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17 | |
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18 | #define DEBUG_SPECIAL_MODULE DEBUG_MODULE_EVENT |
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19 | |
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20 | #include "event_handler.h" |
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21 | #include "event_listener.h" |
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22 | #include "event.h" |
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23 | |
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24 | #include "ini_parser.h" |
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25 | #include "keynames.h" |
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26 | |
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27 | |
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28 | using namespace std; |
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29 | |
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30 | |
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31 | /** |
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32 | \brief standard constructor |
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33 | */ |
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34 | EventHandler::EventHandler () |
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35 | { |
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36 | this->setClassID(CL_EVENT_HANDLER, "EventHandler"); |
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37 | |
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38 | this->listeners = new EventListener**[ES_NUMBER]; |
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39 | for(int i = 0; i < ES_NUMBER; ++i) |
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40 | this->listeners[i] = new EventListener*[EV_NUMBER]; |
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41 | |
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42 | /* now initialize them all to zero */ |
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43 | for(int i = 0; i < ES_NUMBER; ++i) |
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44 | { |
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45 | for(int j = 0; j < SDLK_LAST; ++j) |
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46 | { |
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47 | this->listeners[i][j] = NULL; |
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48 | } |
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49 | } |
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50 | } |
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51 | |
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52 | /** |
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53 | \brief the singleton reference to this class |
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54 | */ |
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55 | EventHandler* EventHandler::singletonRef = NULL; |
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56 | |
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57 | /** |
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58 | \returns a Pointer to this Class |
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59 | */ |
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60 | EventHandler* EventHandler::getInstance(void) |
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61 | { |
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62 | if (!EventHandler::singletonRef) |
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63 | EventHandler::singletonRef = new EventHandler(); |
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64 | return EventHandler::singletonRef; |
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65 | } |
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66 | |
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67 | /** |
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68 | \brief standard deconstructor |
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69 | |
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70 | */ |
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71 | EventHandler::~EventHandler () |
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72 | { |
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73 | EventHandler::singletonRef = NULL; |
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74 | } |
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75 | |
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76 | |
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77 | |
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78 | void EventHandler::setState(elState state) |
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79 | { |
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80 | this->state = state; |
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81 | } |
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82 | |
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83 | void EventHandler::subscribeListener(EventListener* el, elState state, int eventType) |
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84 | { |
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85 | if( likely(this->listeners[state][eventType] == NULL)) |
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86 | this->listeners[state][eventType] = el; |
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87 | else |
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88 | PRINTF(0)("Someone tried to subscribe to event %i @ state %i but this event has already been subscribed\n", eventType, state); |
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89 | } |
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90 | |
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91 | |
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92 | void EventHandler::unsubscribeListener(int eventType, elState state) |
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93 | { |
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94 | this->listeners[state][eventType] = NULL; |
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95 | } |
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96 | |
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97 | void EventHandler::flush(elState state) |
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98 | { |
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99 | if( state == ES_ALL) |
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100 | { |
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101 | for(int i = 0; i < ES_NUMBER; ++i) |
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102 | { |
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103 | for(int j = 0; j < SDLK_LAST; ++j) |
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104 | { |
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105 | this->listeners[i][j] = NULL; |
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106 | } |
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107 | } |
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108 | } |
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109 | else |
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110 | { |
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111 | for(int j = 0; j < SDLK_LAST; ++j) |
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112 | { |
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113 | this->listeners[state][j] = NULL; |
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114 | } |
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115 | } |
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116 | } |
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117 | |
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118 | |
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119 | |
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120 | void EventHandler::process() |
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121 | { |
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122 | SDL_Event event; |
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123 | Event ev; |
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124 | EventListener* listener; |
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125 | while( SDL_PollEvent (&event)) |
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126 | { |
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127 | switch( event.type) |
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128 | { |
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129 | case SDL_KEYDOWN: |
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130 | ev.bPressed = true; |
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131 | ev.type = event.key.keysym.sym; |
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132 | break; |
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133 | case SDL_KEYUP: |
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134 | ev.bPressed = false; |
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135 | ev.type = event.key.keysym.sym; |
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136 | break; |
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137 | case SDL_MOUSEMOTION: |
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138 | ev.bPressed = false; |
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139 | ev.type = EV_MOUSE_MOTION; |
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140 | ev.x = event.motion.x; |
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141 | ev.y = event.motion.y; |
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142 | ev.xRel = event.motion.xrel; |
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143 | ev.yRel = event.motion.yrel; |
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144 | break; |
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145 | case SDL_MOUSEBUTTONUP: |
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146 | ev.bPressed = false; |
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147 | ev.type = EV_MOUSE_BUTTON; |
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148 | break; |
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149 | case SDL_MOUSEBUTTONDOWN: |
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150 | ev.bPressed = true; |
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151 | ev.type = EV_MOUSE_BUTTON; |
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152 | break; |
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153 | case SDL_JOYAXISMOTION: |
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154 | ev.bPressed = false; |
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155 | ev.type = EV_JOY_AXIS_MOTION; |
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156 | break; |
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157 | case SDL_JOYBALLMOTION: |
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158 | ev.bPressed = false; |
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159 | ev.type = EV_JOY_BALL_MOTION; |
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160 | break; |
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161 | case SDL_JOYHATMOTION: |
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162 | ev.bPressed = false; |
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163 | ev.type = EV_JOY_HAT_MOTION; |
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164 | break; |
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165 | case SDL_JOYBUTTONDOWN: |
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166 | ev.bPressed = true; |
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167 | ev.type = EV_JOY_BUTTON; |
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168 | break; |
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169 | case SDL_JOYBUTTONUP: |
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170 | ev.bPressed = true; |
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171 | ev.type = EV_JOY_BUTTON; |
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172 | break; |
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173 | default: |
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174 | break; |
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175 | } |
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176 | |
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177 | /* small debug routine: shows alle events dispatched by the event handler */ |
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178 | PRINT(0)("\n==========================| EventHandler::process () |===\n"); |
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179 | PRINT(0)("= Got Event nr%i\n, for state %i", event.type, this->state); |
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180 | |
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181 | listener = this->listeners[this->state][event.key.keysym.sym]; |
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182 | if( listener != NULL) |
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183 | { |
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184 | listener->process(ev); |
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185 | PRINTF(0)("= Event dispatcher msg: This event has been consumed\n"); |
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186 | } |
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187 | else |
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188 | { |
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189 | PRINTF(0)("= Event dispatcher msg: This event has NOT been consumed\n"); |
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190 | } |
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191 | |
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192 | PRINT(0)("=======================================================\n"); |
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193 | } |
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194 | } |
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