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annotate ext/guichan-0.8.1/examples/sdl.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 /*
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mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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2 * Code that sets up an SDL application with Guichan using the
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
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3 * Guichan SDL 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/sdl.hpp>
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8
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9 namespace sdl
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10 {
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11 bool running = true;
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12 SDL_Surface* screen;
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13
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14 // All back ends contain objects to make Guichan work on a
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15 // specific target - in this case SDL - and they are a Graphics
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16 // object to make Guichan able to draw itself using SDL, an
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17 // input objec to make Guichan able to get user input using SDL
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18 // and an ImageLoader object to make Guichan able to load images
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19 // using SDL.
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20 gcn::SDLGraphics* graphics;
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21 gcn::SDLInput* input;
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22 gcn::SDLImageLoader* imageLoader;
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23
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24 /**
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25 * Initialises the SDL application. This function creates the global
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26 * Gui object that can be populated by various examples.
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27 */
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28 void init()
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29 {
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30 // We simply initialise SDL as we would do with any SDL application.
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31 SDL_Init(SDL_INIT_VIDEO);
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32 screen = SDL_SetVideoMode(640, 480, 32, SDL_HWSURFACE);
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33 // We want unicode for the SDLInput object to function properly.
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34 SDL_EnableUNICODE(1);
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35 // We also want to enable key repeat.
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36 SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
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37
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38 // Now it's time to initialise the Guichan SDL back end.
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39
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40 imageLoader = new gcn::SDLImageLoader();
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41 // The ImageLoader Guichan should use needs to be passed to the Image object
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42 // using a static function.
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43 gcn::Image::setImageLoader(imageLoader);
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44 graphics = new gcn::SDLGraphics();
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45 // The Graphics object needs a target to draw to, in this case it's the
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46 // screen surface, but any surface will do, it doesn't have to be the screen.
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47 graphics->setTarget(screen);
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48 input = new gcn::SDLInput();
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49
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50 // Now we create the Gui object to be used with this SDL application.
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51 globals::gui = new gcn::Gui();
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52 // The Gui object needs a Graphics to be able to draw itself and an Input
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53 // object to be able to check for user input. In this case we provide the
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54 // Gui object with SDL implementations of these objects hence making Guichan
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55 // able to utilise SDL.
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56 globals::gui->setGraphics(graphics);
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57 globals::gui->setInput(input);
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58 }
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59
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60 /**
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61 * Halts the SDL application.
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62 */
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63 void halt()
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64 {
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65 delete globals::gui;
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66
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67 delete imageLoader;
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68 delete input;
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69 delete graphics;
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70
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71 SDL_Quit();
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72 }
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73
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74 /**
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75 * Runs the SDL application.
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76 */
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77 void run()
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78 {
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79 // The main loop
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80 while(running)
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81 {
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82 // Check user input
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83 SDL_Event event;
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84 while(SDL_PollEvent(&event))
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85 {
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86 if (event.type == SDL_KEYDOWN)
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87 {
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88 if (event.key.keysym.sym == SDLK_ESCAPE)
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89 {
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90 running = false;
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91 }
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92 if (event.key.keysym.sym == SDLK_f)
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93 {
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94 if (event.key.keysym.mod & KMOD_CTRL)
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95 {
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96 // Works with X11 only
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97 SDL_WM_ToggleFullScreen(screen);
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98 }
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99 }
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100 }
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101 else if(event.type == SDL_QUIT)
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102 {
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103 running = false;
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104 }
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105
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106 // After we have manually checked user input with SDL for
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107 // any attempt by the user to halt the application we feed
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108 // the input to Guichan by pushing the input to the Input
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109 // object.
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110 input->pushInput(event);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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111 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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112 // Now we let the Gui object perform its logic.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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113 globals::gui->logic();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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114 // Now we let the Gui object draw itself.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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115 globals::gui->draw();
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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116 // Finally we update the screen.
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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117 SDL_Flip(screen);
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
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118 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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119 }
4a0efb7baf70 * Datasets becomes the new trunk and retires after that :-)
mvbarracuda@33b003aa-7bff-0310-803a-e67f0ece8222
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120 }