1 | |
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2 | /* |
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3 | orxonox - the future of 3D-vertical-scrollers |
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4 | |
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5 | Copyright (C) 2004 orx |
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6 | |
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7 | This program is free software; you can redistribute it and/or modify |
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8 | it under the terms of the GNU General Public License as published by |
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9 | the Free Software Foundation; either version 2, or (at your option) |
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10 | any later version. |
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11 | |
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12 | ### File Specific: |
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13 | main-programmer: Patrick Boenzli |
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14 | co-programmer: Christian Meyer |
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15 | */ |
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16 | |
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17 | #include "world.h" |
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18 | #include "world_entity.h" |
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19 | #include "collision.h" |
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20 | #include "track.h" |
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21 | #include "player.h" |
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22 | #include "command_node.h" |
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23 | #include "camera.h" |
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24 | |
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25 | using namespace std; |
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26 | |
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27 | |
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28 | /** |
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29 | \brief create a new World |
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30 | |
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31 | This creates a new empty world! |
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32 | */ |
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33 | World::World (char* name) |
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34 | { |
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35 | this->worldName = name; |
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36 | this->debugWorldNr = -1; |
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37 | this->entities = new List<WorldEntity>(); |
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38 | } |
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39 | |
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40 | World::World (int worldID) |
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41 | { |
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42 | this->debugWorldNr = worldID; |
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43 | this->worldName = NULL; |
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44 | this->entities = new List<WorldEntity>(); |
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45 | } |
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46 | |
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47 | /** |
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48 | \brief remove the World from memory |
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49 | */ |
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50 | World::~World () |
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51 | { |
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52 | Orxonox *orx = Orxonox::getInstance(); |
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53 | orx->get_localinput()->unbind (this->localPlayer); |
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54 | delete this->entities; |
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55 | delete this->localCamera; |
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56 | } |
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57 | |
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58 | |
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59 | /** |
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60 | \brief initialize the world before use. |
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61 | */ |
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62 | Error World::init() |
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63 | { |
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64 | this->bPause = false; |
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65 | } |
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66 | |
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67 | Error World::start() |
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68 | { |
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69 | this->mainLoop(); |
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70 | } |
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71 | |
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72 | Error World::stop() |
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73 | { |
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74 | this->bQuitCurrentGame = true; |
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75 | this->localCamera->setWorld(NULL); |
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76 | this->~World(); |
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77 | } |
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78 | |
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79 | Error World::pause() |
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80 | { |
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81 | this->isPaused = true; |
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82 | } |
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83 | |
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84 | Error World::resume() |
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85 | { |
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86 | this->isPaused = false; |
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87 | } |
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88 | |
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89 | void World::load() |
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90 | { |
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91 | if(this->debugWorldNr != -1) |
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92 | { |
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93 | switch(this->debugWorldNr) |
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94 | { |
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95 | case DEBUG_WORLD_0: |
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96 | { |
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97 | // create some path nodes |
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98 | this->pathnodes = new Vector[6]; |
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99 | this->pathnodes[0] = Vector(0, 0, 0); |
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100 | this->pathnodes[1] = Vector(-100, 40, 0); |
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101 | this->pathnodes[2] = Vector(-100, 140, 0); |
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102 | this->pathnodes[3] = Vector(0, 180, 0); |
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103 | this->pathnodes[4] = Vector(100, 140, 0); |
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104 | this->pathnodes[5] = Vector(100, 40, 0); |
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105 | |
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106 | // create the tracks |
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107 | this->tracklen = 6; |
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108 | this->track = new Track[6]; |
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109 | for( int i = 0; i < this->tracklen; i++) |
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110 | { |
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111 | this->track[i] = Track( i, (i+1)%this->tracklen, &this->pathnodes[i], &this->pathnodes[(i+1)%this->tracklen]); |
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112 | } |
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113 | |
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114 | // create a player |
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115 | //WorldEntity* myPlayer = (WorldEntity*) this->spawn<Player>(); |
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116 | WorldEntity* myPlayer = new Player(); |
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117 | this->spawn(myPlayer); |
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118 | this->localPlayer = myPlayer; |
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119 | |
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120 | // bind input |
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121 | Orxonox *orx = Orxonox::getInstance(); |
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122 | orx->get_localinput()->bind (myPlayer); |
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123 | |
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124 | // bind camera |
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125 | this->localCamera = new Camera(this); |
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126 | this->getCamera()->bind (myPlayer); |
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127 | break; |
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128 | } |
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129 | case DEBUG_WORLD_1: |
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130 | { |
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131 | // create some path nodes |
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132 | this->pathnodes = new Vector[6]; |
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133 | this->pathnodes[0] = Vector(0, 0, 0); |
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134 | this->pathnodes[1] = Vector(20, 10, 10); |
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135 | this->pathnodes[2] = Vector(40, 0, 10); |
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136 | this->pathnodes[3] = Vector(60, 10, 0); |
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137 | this->pathnodes[4] = Vector(80, 20, 10); |
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138 | this->pathnodes[5] = Vector(30, 50, 0); |
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139 | |
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140 | // create the tracks |
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141 | this->tracklen = 6; |
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142 | this->track = new Track[6]; |
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143 | for( int i = 0; i < this->tracklen; i++) |
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144 | { |
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145 | this->track[i] = Track( i, (i+1)%this->tracklen, &this->pathnodes[i], &this->pathnodes[(i+1)%this->tracklen]); |
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146 | } |
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147 | |
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148 | // create a player |
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149 | //WorldEntity* myPlayer = (WorldEntity*) this->spawn<Player>(); |
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150 | WorldEntity* myPlayer = new Player(); |
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151 | this->spawn(myPlayer); |
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152 | this->localPlayer = myPlayer; |
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153 | |
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154 | // bind input |
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155 | Orxonox *orx = Orxonox::getInstance(); |
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156 | orx->get_localinput()->bind (myPlayer); |
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157 | |
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158 | // bind camera |
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159 | this->localCamera = new Camera(this); |
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160 | this->getCamera()->bind (myPlayer); |
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161 | break; |
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162 | } |
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163 | default: |
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164 | printf("World::load() - no world with ID %i found", this->debugWorldNr ); |
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165 | } |
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166 | } |
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167 | else if(this->worldName != NULL) |
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168 | { |
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169 | |
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170 | } |
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171 | |
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172 | // initialize debug coord system |
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173 | objectList = glGenLists(1); |
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174 | glNewList (objectList, GL_COMPILE); |
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175 | glLoadIdentity(); |
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176 | glBegin(GL_LINES); |
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177 | |
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178 | for( float x = -128.0; x < 128.0; x += 25.0) |
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179 | { |
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180 | for( float y = -128.0; y < 128.0; y += 25.0) |
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181 | { |
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182 | glColor3f(1,0,0); |
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183 | glVertex3f(x,y,-128.0); |
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184 | glVertex3f(x,y,0.0); |
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185 | glColor3f(0.5,0,0); |
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186 | glVertex3f(x,y,0.0); |
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187 | glVertex3f(x,y,128.0); |
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188 | } |
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189 | } |
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190 | for( float y = -128.0; y < 128.0; y += 25.0) |
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191 | { |
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192 | for( float z = -128.0; z < 128.0; z += 25.0) |
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193 | { |
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194 | glColor3f(0,1,0); |
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195 | glVertex3f(-128.0,y,z); |
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196 | glVertex3f(0.0,y,z); |
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197 | glColor3f(0,0.5,0); |
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198 | glVertex3f(0.0,y,z); |
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199 | glVertex3f(128.0,y,z); |
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200 | } |
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201 | } |
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202 | for( float x = -128.0; x < 128.0; x += 25.0) |
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203 | { |
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204 | for( float z = -128.0; z < 128.0; z += 25.0) |
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205 | { |
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206 | glColor3f(0,0,1); |
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207 | glVertex3f(x,-128.0,z); |
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208 | glVertex3f(x,0.0,z); |
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209 | glColor3f(0,0,0.5); |
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210 | glVertex3f(x,0.0,z); |
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211 | glVertex3f(x,128.0,z); |
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212 | } |
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213 | |
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214 | } |
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215 | |
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216 | //draw track |
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217 | glColor3f(0,1,1); |
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218 | for( int i = 0; i < tracklen; i++) |
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219 | { |
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220 | glVertex3f(pathnodes[i].x,pathnodes[i].y,pathnodes[i].z); |
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221 | glVertex3f(pathnodes[(i+1)%tracklen].x,pathnodes[(i+1)%tracklen].y,pathnodes[(i+1)%tracklen].z); |
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222 | } |
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223 | glEnd(); |
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224 | glEndList(); |
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225 | } |
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226 | |
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227 | |
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228 | /** |
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229 | \brief checks for collisions |
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230 | |
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231 | This method runs through all WorldEntities known to the world and checks for collisions |
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232 | between them. In case of collisions the collide() method of the corresponding entities |
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233 | is called. |
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234 | */ |
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235 | void World::collide () |
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236 | { |
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237 | List<WorldEntity> *a, *b; |
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238 | WorldEntity *aobj, *bobj; |
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239 | |
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240 | a = entities->get_next(); |
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241 | |
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242 | while( a != NULL) |
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243 | { |
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244 | aobj = a->get_object(); |
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245 | if( aobj->bCollide && aobj->collisioncluster != NULL) |
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246 | { |
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247 | b = a->get_next(); |
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248 | while( b != NULL ) |
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249 | { |
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250 | bobj = b->get_object(); |
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251 | if( bobj->bCollide && bobj->collisioncluster != NULL ) |
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252 | { |
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253 | unsigned long ahitflg, bhitflg; |
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254 | if( check_collision ( &aobj->place, aobj->collisioncluster, |
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255 | &ahitflg, &bobj->place, bobj->collisioncluster, |
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256 | &bhitflg) ); |
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257 | { |
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258 | aobj->collide (bobj, ahitflg, bhitflg); |
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259 | bobj->collide (aobj, bhitflg, ahitflg); |
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260 | } |
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261 | } |
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262 | b = b->get_next(); |
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263 | } |
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264 | } |
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265 | a = a->get_next(); |
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266 | } |
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267 | } |
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268 | |
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269 | /** |
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270 | \brief runs through all entities calling their draw() methods |
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271 | */ |
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272 | void World::draw () |
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273 | { |
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274 | // draw geometry |
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275 | |
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276 | // draw entities |
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277 | List<WorldEntity> *l; |
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278 | WorldEntity* entity; |
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279 | |
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280 | l = entities->get_next(); |
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281 | while( l != NULL ) |
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282 | { |
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283 | entity = l->get_object(); |
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284 | if( entity->bDraw ) entity->draw(); |
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285 | l = l->get_next(); |
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286 | } |
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287 | |
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288 | |
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289 | // draw debug coord system |
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290 | glCallList (objectList); |
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291 | |
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292 | |
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293 | } |
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294 | |
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295 | /** |
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296 | \brief updates Placements and notifies entities when they left the |
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297 | world |
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298 | |
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299 | This runs trough all WorldEntities and maps Locations to Placements |
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300 | if they are bound, checks whether they left the level boundaries |
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301 | and calls appropriate functions. |
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302 | */ |
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303 | void World::update () |
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304 | { |
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305 | List<WorldEntity> *l; |
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306 | WorldEntity* entity; |
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307 | Location* loc; |
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308 | Placement* plc; |
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309 | Uint32 t; |
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310 | |
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311 | l = entities->get_next(); |
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312 | while( l != NULL ) |
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313 | { |
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314 | entity = l->get_object(); |
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315 | |
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316 | if( !entity->isFree() ) |
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317 | { |
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318 | loc = entity->get_location(); |
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319 | plc = entity->get_placement(); |
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320 | t = loc->part; |
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321 | |
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322 | /* check if entity has still a legal track-id */ |
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323 | if( t >= tracklen ) |
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324 | { |
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325 | printf("An entity is out of the game area\n"); |
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326 | entity->left_world (); |
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327 | } |
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328 | else |
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329 | { |
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330 | while( track[t].map_coords( loc, plc) ) |
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331 | { |
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332 | track[t].post_leave (entity); |
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333 | if( loc->part >= tracklen ) |
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334 | { |
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335 | printf("An entity has left the game area\n"); |
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336 | entity->left_world (); |
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337 | break; |
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338 | } |
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339 | track[loc->part].post_enter (entity); |
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340 | } |
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341 | } |
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342 | } |
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343 | else |
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344 | { |
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345 | /* TO DO: implement check whether this particular free entity |
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346 | is out of the game area |
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347 | TO DO: call function to notify the entity that it left |
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348 | the game area |
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349 | */ |
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350 | } |
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351 | |
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352 | l = l->get_next(); |
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353 | } |
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354 | |
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355 | } |
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356 | |
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357 | /** |
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358 | \brief relays the passed time since the last frame to entities and Track parts |
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359 | \param deltaT: the time passed since the last frame in milliseconds |
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360 | */ |
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361 | void World::time_slice (Uint32 deltaT) |
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362 | { |
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363 | List<WorldEntity> *l; |
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364 | WorldEntity* entity; |
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365 | float seconds = deltaT; |
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366 | |
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367 | seconds /= 1000; |
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368 | |
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369 | l = entities->get_next(); |
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370 | while( l != NULL) |
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371 | { |
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372 | entity = l->get_object(); |
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373 | entity->tick (seconds); |
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374 | l = l->get_next(); |
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375 | } |
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376 | |
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377 | for( int i = 0; i < tracklen; i++) track[i].tick (seconds); |
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378 | } |
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379 | |
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380 | /** |
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381 | \brief removes level data from memory |
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382 | */ |
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383 | void World::unload() |
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384 | { |
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385 | if( pathnodes) delete []pathnodes; |
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386 | if( track) delete []pathnodes; |
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387 | } |
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388 | |
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389 | |
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390 | |
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391 | /** |
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392 | \brief calls the correct mapping function to convert a given "look at"-Location to a |
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393 | Camera Placement |
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394 | */ |
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395 | void World::calc_camera_pos (Location* loc, Placement* plc) |
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396 | { |
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397 | track[loc->part].map_camera (loc, plc); |
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398 | } |
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399 | |
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400 | |
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401 | void World::setTrackLen(Uint32 len) |
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402 | { |
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403 | this->tracklen = len; |
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404 | } |
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405 | |
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406 | int World::getTrackLen() |
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407 | { |
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408 | return this->tracklen; |
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409 | } |
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410 | |
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411 | void World::debug() |
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412 | { |
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413 | List<WorldEntity> *l; |
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414 | WorldEntity* entity; |
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415 | |
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416 | printf("counting all entities\n"); |
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417 | l = entities->get_next(); |
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418 | while( l != NULL ) |
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419 | { |
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420 | entity = l->get_object(); |
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421 | if( entity->bDraw ) printf("got an entity\n"); |
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422 | l = l->get_next(); |
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423 | } |
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424 | } |
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425 | |
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426 | |
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427 | void World::mainLoop() |
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428 | { |
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429 | this->lastFrame = SDL_GetTicks(); |
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430 | this->bQuitOrxonox = false; |
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431 | this->bQuitCurrentGame = false; |
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432 | printf("World|Entering main loop\n"); |
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433 | while(!this->bQuitOrxonox && !this->bQuitCurrentGame) /* pause pause pause ?!?!?*/ |
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434 | { |
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435 | //debug routine |
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436 | //debug(); |
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437 | // Network |
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438 | synchronize(); |
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439 | // Process input |
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440 | handle_input(); |
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441 | // Process time |
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442 | time_slice(); |
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443 | // Process collision |
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444 | collision(); |
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445 | // Draw |
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446 | display(); |
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447 | } |
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448 | printf("World|Exiting the main loop\n"); |
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449 | } |
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450 | |
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451 | /** |
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452 | \brief synchronize local data with remote data |
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453 | */ |
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454 | void World::synchronize () |
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455 | { |
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456 | // Get remote input |
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457 | // Update synchronizables |
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458 | } |
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459 | |
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460 | /** |
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461 | \brief run all input processing |
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462 | */ |
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463 | void World::handle_input () |
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464 | { |
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465 | // localinput |
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466 | Orxonox::getInstance()->get_localinput()->process(); |
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467 | // remoteinput |
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468 | } |
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469 | |
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470 | /** |
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471 | \brief advance the timeline |
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472 | */ |
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473 | void World::time_slice () |
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474 | { |
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475 | Uint32 currentFrame = SDL_GetTicks(); |
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476 | if(!this->bPause) |
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477 | { |
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478 | Uint32 dt = currentFrame - this->lastFrame; |
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479 | /* |
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480 | if(dt > 0) |
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481 | { |
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482 | float fps = 1000/dt; |
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483 | printf("fps = %f\n", fps); |
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484 | } |
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485 | else |
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486 | { |
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487 | printf("fps = 1000\n"); |
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488 | } |
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489 | */ |
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490 | this->time_slice (dt); |
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491 | this->update (); |
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492 | this->localCamera->time_slice (dt); |
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493 | } |
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494 | this->lastFrame = currentFrame; |
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495 | } |
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496 | |
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497 | /** |
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498 | \brief compute collision detection |
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499 | */ |
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500 | void World::collision () |
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501 | { |
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502 | this->collide (); |
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503 | } |
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504 | |
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505 | /** |
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506 | \brief handle keyboard commands that are not meant for WorldEntities |
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507 | \param cmd: the command to handle |
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508 | \return true if the command was handled by the system or false if it may be passed to the WorldEntities |
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509 | */ |
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510 | bool World::system_command (Command* cmd) |
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511 | { |
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512 | if( !strcmp( cmd->cmd, "quit")) |
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513 | { |
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514 | if( !cmd->bUp) this->bQuitOrxonox = true; |
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515 | return true; |
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516 | } |
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517 | return false; |
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518 | } |
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519 | |
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520 | /** |
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521 | \brief render the current frame |
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522 | */ |
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523 | void World::display () |
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524 | { |
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525 | // clear buffer |
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526 | glClear( GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); |
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527 | // set camera |
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528 | this->localCamera->apply (); |
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529 | // draw world |
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530 | this->draw(); |
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531 | // draw HUD |
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532 | // flip buffers |
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533 | SDL_GL_SwapBuffers(); |
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534 | } |
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535 | |
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536 | Camera* World::getCamera() |
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537 | { |
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538 | return this->localCamera; |
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539 | } |
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540 | |
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541 | |
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542 | void World::spawn(WorldEntity* entity) |
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543 | { |
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544 | Location zeroloc; |
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545 | Location* loc = NULL; |
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546 | WorldEntity* owner; |
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547 | //T* entity = new T(); |
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548 | entities->add (entity, LIST_ADD_NEXT); |
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549 | //if( loc == NULL) |
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550 | //{ |
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551 | zeroloc.dist = 0; |
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552 | zeroloc.part = 0; |
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553 | zeroloc.pos = Vector(); |
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554 | zeroloc.rot = Quaternion(); |
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555 | loc = &zeroloc; |
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556 | //} |
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557 | entity->init (loc, owner); |
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558 | if (entity->bFree) |
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559 | { |
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560 | this->track[loc->part].map_coords( loc, entity->get_placement()); |
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561 | } |
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562 | entity->post_spawn (); |
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563 | //return entity; |
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564 | } |
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