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annotate mde/input/joystick.d @ 17:5f90774ea1ef

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Applied the GNU GPL v2 to mde. committer: Diggory Hardy <diggory.hardy@gmail.com>
author Diggory Hardy <diggory.hardy@gmail.com>
date Sat, 15 Mar 2008 15:14:25 +0000
parents 4c3575400769
children 32eff0e01c05
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5f90774ea1ef Applied the GNU GPL v2 to mde.
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1 /* LICENSE BLOCK
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2 Part of mde: a Modular D game-oriented Engine
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3 Copyright © 2007-2008 Diggory Hardy
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4
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5 This program is free software; you can redistribute it and/or modify it under the terms of
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6 the GNU General Public License, version 2, as published by the Free Software Foundation.
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7
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8 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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9 without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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10 See the GNU General Public License for more details.
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11
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12 You should have received a copy of the GNU General Public License along
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13 with this program; if not, write to the Free Software Foundation, Inc.,
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14 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */
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16 /** Opens SDL joysticks ready for use.
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17 * May be extended later to include other input devices and remap devices as per config.
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18 */
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19 module mde.input.joystick;
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20
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21 import tango.util.log.Log : Log, Logger;
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22
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23 import derelict.sdl.joystick;
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24
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25 private Logger logger;
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26 static this() {
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27 logger = Log.getLogger ("mde.input.joystick");
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28 }
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29 private SDL_Joystick*[] joysticks; // pointers to all joystick structs, whether successfully opened or not
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30
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31 /** Open joysticks ready for use.
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32 *
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33 * This is simply required for SDL to handle joystick events. It can fail, but won't affect anything
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34 * else, except for the controller not working.
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35 *
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36 * closeJoysticks must be run to cleanup afterwards.
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37 */
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38 void openJoysticks () {
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39 joysticks = new SDL_Joystick*[SDL_NumJoysticks ()];
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40 char tmp[128] = void;
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41
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42 for (int i = 0; i < joysticks.length; ++i) {
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43 if ((joysticks[i] = SDL_JoystickOpen (i)) is null) { // null on failure
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44 logger.warn (logger.format (tmp, "Unable to open joystick {} via SDL", i));
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45 }
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46 }
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47
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48 logger.info (logger.format (tmp, "Opened {} joysticks via SDL, succesfully unless preceding warnings say otherwise.", joysticks.length));
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49 }
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50
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51 /// Cleanup fct.
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52 void closeJoysticks () {
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53 foreach (js; joysticks) {
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54 if(js) SDL_JoystickClose(js); // only close if successfully opened
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55 }
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56 }