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annotate ext/guichan-0.8.1/examples/openlayer.hpp @ 0:4a0efb7baf70

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* Datasets becomes the new trunk and retires after that :-)
author mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
date Sun, 29 Jun 2008 18:44:17 +0000
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4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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1 /*
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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2 * Code that sets up an OpenLayer application with Guichan using the
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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3 * Guichan OpenLayer back end.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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4 */
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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5
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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6 #include <guichan.hpp>
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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7 #include <guichan/openlayer.hpp>
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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8
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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9 namespace openlayer
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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10 {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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11 // All back ends contain objects to make Guichan work on a
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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12 // specific target - in this case OpenLayer - and they are a Graphics
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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13 // object to make Guichan able to draw itself using OpenLayer, an
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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14 // input objec to make Guichan able to get user input using OpenLayer
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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15 // and an ImageLoader object to make Guichan able to load images
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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16 // using OpenLayer.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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17 gcn::OpenLayerGraphics* graphics;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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18 gcn::OpenLayerInput* input;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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19 gcn::OpenLayerImageLoader* imageLoader;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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20
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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21 /**
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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22 * Initialises the OpenLayer application. This function creates the global
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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23 * Gui object that can be populated by various examples.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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24 */
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25 void init()
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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26 {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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27 // We simply initialise OpenLayer as we would do with any OpenLayer application.
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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28 ol::Setup::SetupProgram(true, true, true);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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29 ol::Setup::SetupScreen(640, 480, WINDOWED);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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30
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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31 // Now it's time to initialise the Guichan OpenLayer back end.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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32
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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33 imageLoader = new gcn::OpenLayerImageLoader();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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34 // The ImageLoader Guichan should use needs to be passed to the Image object
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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35 // using a static function.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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36 gcn::Image::setImageLoader(imageLoader);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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37 graphics = new gcn::OpenLayerGraphics();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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38 // We need to tell the OpenLayer Graphics object how big the screen is.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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39 graphics->setTargetPlane(640, 480);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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40 input = new gcn::OpenLayerInput();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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41
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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42 // Now we create the Gui object to be used with this OpenLayer application.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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43 globals::gui = new gcn::Gui();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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44 // The Gui object needs a Graphics to be able to draw itself and an Input
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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45 // object to be able to check for user input. In this case we provide the
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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46 // Gui object with OpenLayer implementations of these objects hence making Guichan
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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47 // able to utilise OpenLayer.
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48 globals::gui->setGraphics(graphics);
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49 globals::gui->setInput(input);
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50 }
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51
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52 /**
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53 * Halts the OpenLayer application.
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54 */
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55 void halt()
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56 {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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57 delete globals::gui;
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58
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59 delete imageLoader;
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60 delete input;
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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61 delete graphics;
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62 }
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63
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64 /**
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65 * Runs the OpenLayer application.
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66 */
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67 void run()
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68 {
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69 ol::Bitmap mouse_bmp;
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70 mouse_bmp.Load(mouse_sprite, ol::CONVERT_MAGIC_PINK);
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71
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72 if (!mouse_bmp )
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73 {
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74 ol::OlError("Pointer not loaded.");
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75 }
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76
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77 while(!key[KEY_ESC])
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78 {
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79 // Now we let the Gui object perform its logic.
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80 globals::gui->logic();
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81 // Now we let the Gui object draw itself.
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82 globals::gui->draw();
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83
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84 // We draw the mouse pointer manually.
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85 mouse_bmp.Blit(mouse_x, mouse_y);
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86 // Finally we update the screen.
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87 ol::GfxRend::RefreshScreen();
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88 }
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89 }
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90 }