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annotate ext/guichan-0.8.1/examples/hge.hpp @ 362:6da97ffede18

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Patch by amo-ej1 (Elie de Brauwer): * Fixes the map editor's save map as functionality * Close #382
author mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
date Sun, 18 Oct 2009 20:13:21 +0000
parents 4a0efb7baf70
children
rev   line source
0
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 HGE application with Guichan using the
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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3 * Guichan HGE back end.
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4 */
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5
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6 #include <guichan.hpp>
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7 #include <guichan/hge.hpp>
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8 #include <string>
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9
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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10 namespace hge
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11 {
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12 HGE *hge = NULL;
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13 bool running = false;
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14
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15 // All back ends contain objects to make Guichan work on a
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16 // specific target - in this case HGE - and they are a Graphics
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17 // object to make Guichan able to draw itself using HGE, an
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18 // input objec to make Guichan able to get user input using HGE
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19 // and an ImageLoader object to make Guichan able to load images
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20 // using SDL.
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21 gcn::HGEGraphics* graphics;
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22 gcn::HGEInput* input;
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23 gcn::HGEImageLoader* imageLoader;
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24
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25 /**
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26 * The frame function for the HGE application.
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27 */
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28 bool frameFunc()
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29 {
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30 if (hge->Input_GetKeyState(HGEK_ESCAPE) || running)
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31 {
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32 return true;
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33 }
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34
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35 // Now we let the Gui object perform its logic.
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36 globals::gui->logic();
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37 // Next we begin a scene.
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38 hge->Gfx_BeginScene();
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39 hge->Gfx_Clear(0);
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40 // Now we let the Gui object draw itself.
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41 globals::gui->draw();
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42 // Finally we end the scene causing the screen to be updated.
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43 hge->Gfx_EndScene();
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44
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45 return false;
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46 }
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47
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48 /**
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49 * Initialises the HGE application. This function creates the global
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50 * Gui object that can be populated by various examples.
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51 */
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52 void init()
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53 {
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54 // We simply initialise HGE as we would do with any HGE application.
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55 hge = hgeCreate(HGE_VERSION);
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56
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57 hge->System_SetState(HGE_FRAMEFUNC, frameFunc);
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58 hge->System_SetState(HGE_SCREENWIDTH, 640);
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59 hge->System_SetState(HGE_SCREENHEIGHT, 480);
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60 hge->System_SetState(HGE_WINDOWED, true);
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61 hge->System_SetState(HGE_HIDEMOUSE, false);
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62 hge->System_SetState(HGE_USESOUND, false);
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63 hge->System_SetState(HGE_SHOWSPLASH, false);
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64 hge->System_SetState(HGE_LOGFILE, "hgelog.txt");
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65
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66 if (!hge->System_Initiate())
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67 {
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68 throw GCN_EXCEPTION("Unable to initialse HGE: " + std::string(hge->System_GetErrorMessage()));
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69 }
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70
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71 // Now it's time to initialise the Guichan HGE back end.
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72
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73 imageLoader = new gcn::HGEImageLoader();
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74 // The ImageLoader Guichan should use needs to be passed to the Image object
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75 // using a static function.
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76 gcn::Image::setImageLoader(imageLoader);
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77 graphics = new gcn::HGEGraphics();
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78 input = new gcn::HGEInput();
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79
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80 // Now we create the Gui object to be used with this HGE application.
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81 globals::gui = new gcn::Gui();
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82 // The Gui object needs a Graphics to be able to draw itself and an Input
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83 // object to be able to check for user input. In this case we provide the
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84 // Gui object with HGE implementations of these objects hence making Guichan
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85 // able to utilise HGE.
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86 globals::gui->setGraphics(graphics);
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87 globals::gui->setInput(input);
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88 }
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89
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90 /**
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91 * Halts the HGE application.
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92 */
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93 void halt()
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94 {
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95 delete globals::gui;
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96
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97 delete imageLoader;
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98 delete input;
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99 delete graphics;
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100
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101 hge->System_Shutdown();
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102 hge->Release();
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103 }
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104
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105 /**
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106 * Runs the HGE application.
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107 */
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108 void run()
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diff changeset
109 {
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
110 hge->System_Start();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
111 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
112 }