Mercurial > fife-parpg

comparison ext/guichan-0.8.2/examples/openlayer.hpp @ 378:64738befdf3b

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bringing in the changes from the build_system_rework branch in preparation for the 0.3.0 release. This commit will require the Jan2010 devkit. Clients will also need to be modified to the new way to import fife.
author vtchill@33b003aa-7bff-0310-803a-e67f0ece8222
date Mon, 11 Jan 2010 23:34:52 +0000
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377:fe6fb0e0ed23 378:64738befdf3b
1 /*
2 * Code that sets up an OpenLayer application with Guichan using the
3 * Guichan OpenLayer back end.
4 */
5
6 #include <guichan.hpp>
7 #include <guichan/openlayer.hpp>
8
9 namespace openlayer
10 {
11 // All back ends contain objects to make Guichan work on a
12 // specific target - in this case OpenLayer - and they are a Graphics
13 // object to make Guichan able to draw itself using OpenLayer, an
14 // input objec to make Guichan able to get user input using OpenLayer
15 // and an ImageLoader object to make Guichan able to load images
16 // using OpenLayer.
17 gcn::OpenLayerGraphics* graphics;
18 gcn::OpenLayerInput* input;
19 gcn::OpenLayerImageLoader* imageLoader;
20
21 /**
22 * Initialises the OpenLayer application. This function creates the global
23 * Gui object that can be populated by various examples.
24 */
25 void init()
26 {
27 // We simply initialise OpenLayer as we would do with any OpenLayer application.
28 ol::Setup::SetupProgram(true, true, true);
29 ol::Setup::SetupScreen(640, 480, WINDOWED);
30
31 // Now it's time to initialise the Guichan OpenLayer back end.
32
33 imageLoader = new gcn::OpenLayerImageLoader();
34 // The ImageLoader Guichan should use needs to be passed to the Image object
35 // using a static function.
36 gcn::Image::setImageLoader(imageLoader);
37 graphics = new gcn::OpenLayerGraphics();
38 // We need to tell the OpenLayer Graphics object how big the screen is.
39 graphics->setTargetPlane(640, 480);
40 input = new gcn::OpenLayerInput();
41
42 // Now we create the Gui object to be used with this OpenLayer application.
43 globals::gui = new gcn::Gui();
44 // The Gui object needs a Graphics to be able to draw itself and an Input
45 // object to be able to check for user input. In this case we provide the
46 // Gui object with OpenLayer implementations of these objects hence making Guichan
47 // able to utilise OpenLayer.
48 globals::gui->setGraphics(graphics);
49 globals::gui->setInput(input);
50 }
51
52 /**
53 * Halts the OpenLayer application.
54 */
55 void halt()
56 {
57 delete globals::gui;
58
59 delete imageLoader;
60 delete input;
61 delete graphics;
62 }
63
64 /**
65 * Runs the OpenLayer application.
66 */
67 void run()
68 {
69 ol::Bitmap mouse_bmp;
70 mouse_bmp.Load(mouse_sprite, ol::CONVERT_MAGIC_PINK);
71
72 if (!mouse_bmp )
73 {
74 ol::OlError("Pointer not loaded.");
75 }
76
77 while(!key[KEY_ESC])
78 {
79 // Now we let the Gui object perform its logic.
80 globals::gui->logic();
81 // Now we let the Gui object draw itself.
82 globals::gui->draw();
83
84 // We draw the mouse pointer manually.
85 mouse_bmp.Blit(mouse_x, mouse_y);
86 // Finally we update the screen.
87 ol::GfxRend::RefreshScreen();
88 }
89 }
90 }