forked from len0rd/rockbox
5360df96ef
fitted to pong and rockblox as well. credit Lukas Sabota for the initial work, and, my very own first commit! git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10365 a1c6a512-1295-4272-9138-f99709370657
448 lines
14 KiB
C
448 lines
14 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Pacbox - a Pacman Emulator for Rockbox
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*
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* Based on PIE - Pacman Instructional Emulator
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*
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* Copyright (c) 1997-2003,2004 Alessandro Scotti
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* http://www.ascotti.org/
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "plugin.h"
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#include "arcade.h"
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#include "pacbox.h"
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#include "pacbox_lcd.h"
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#include "lib/configfile.h"
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PLUGIN_HEADER
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#ifdef USE_IRAM
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extern char iramcopy[];
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extern char iramstart[];
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extern char iramend[];
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extern char iedata[];
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extern char iend[];
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#endif
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struct plugin_api* rb;
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struct pacman_settings {
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int difficulty;
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int numlives;
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int bonus;
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int ghostnames;
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int showfps;
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};
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static struct pacman_settings settings;
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static struct pacman_settings old_settings;
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#define SETTINGS_VERSION 1
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#define SETTINGS_MIN_VERSION 1
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#define SETTINGS_FILENAME "pacbox.cfg"
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static char* difficulty_options[] = { "Normal", "Hard" };
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static char* numlives_options[] = { "1", "2", "3", "5" };
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static char* bonus_options[] = {"10000", "15000", "20000", "No Bonus"};
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static char* ghostnames_options[] = {"Normal", "Alternate"};
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static char* showfps_options[] = {"No", "Yes"};
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static struct configdata config[] =
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{
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{TYPE_ENUM, 0, 2, &settings.difficulty, "Difficulty", difficulty_options, NULL},
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{TYPE_ENUM, 0, 4, &settings.numlives, "Pacmen Per Game", numlives_options, NULL},
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{TYPE_ENUM, 0, 4, &settings.bonus, "Bonus", bonus_options, NULL},
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{TYPE_ENUM, 0, 2, &settings.ghostnames, "Ghost Names", ghostnames_options , NULL},
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{TYPE_ENUM, 0, 2, &settings.showfps, "Show FPS", showfps_options, NULL},
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};
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static bool loadFile( const char * name, unsigned char * buf, int len )
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{
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char filename[MAX_PATH];
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rb->snprintf(filename,sizeof(filename),"/.rockbox/pacman/%s",name);
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int fd = rb->open( filename, O_RDONLY);
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if( fd < 0 ) {
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return false;
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}
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int n = rb->read( fd, buf, len);
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rb->close( fd );
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if( n != len ) {
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return false;
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}
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return true;
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}
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static bool loadROMS( void )
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{
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bool romsLoaded = false;
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romsLoaded = loadFile( "pacman.6e", ram_, 0x1000) &&
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loadFile( "pacman.6f", ram_+0x1000, 0x1000) &&
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loadFile( "pacman.6h", ram_+0x2000, 0x1000) &&
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loadFile( "pacman.6j", ram_+0x3000, 0x1000) &&
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loadFile( "pacman.5e", charset_rom_, 0x1000) &&
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loadFile( "pacman.5f", spriteset_rom_, 0x1000);
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if( romsLoaded ) {
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decodeROMs();
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reset_PacmanMachine();
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}
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return romsLoaded;
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}
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/* A buffer to render Pacman's 244x288 screen into */
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static unsigned char video_buffer[ScreenWidth*ScreenHeight] __attribute__ ((aligned (16)));
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static long start_time;
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static long video_frames = 0;
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static int dipDifficulty[] = { DipDifficulty_Normal, DipDifficulty_Hard };
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static int dipLives[] = { DipLives_1, DipLives_2, DipLives_3, DipLives_5 };
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static int dipBonus[] = { DipBonus_10000, DipBonus_15000, DipBonus_20000,
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DipBonus_None };
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static int dipGhostNames[] = { DipGhostNames_Normal, DipGhostNames_Alternate };
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static int settings_to_dip(struct pacman_settings settings)
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{
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return ( DipPlay_OneCoinOneGame |
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DipCabinet_Upright |
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DipMode_Play |
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DipRackAdvance_Off |
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dipDifficulty[settings.difficulty] |
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dipLives[settings.numlives] |
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dipBonus[settings.bonus] |
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dipGhostNames[settings.ghostnames]
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);
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}
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static bool pacbox_menu(void)
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{
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int m;
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int result;
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int menu_quit=0;
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int new_setting;
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bool need_restart = false;
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static const struct opt_items noyes[2] = {
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{ "No", NULL },
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{ "Yes", NULL },
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};
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static const struct opt_items difficulty_options[2] = {
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{ "Normal", NULL },
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{ "Harder", NULL },
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};
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static const struct opt_items numlives_options[4] = {
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{ "1", NULL },
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{ "2", NULL },
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{ "3", NULL },
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{ "5", NULL },
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};
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static const struct opt_items bonus_options[4] = {
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{ "10000 points", NULL },
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{ "15000 points", NULL },
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{ "20000 points", NULL },
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{ "No bonus", NULL },
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};
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static const struct opt_items ghostname_options[2] = {
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{ "Normal", NULL },
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{ "Alternate", NULL },
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};
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static const struct menu_item items[] = {
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{ "Difficulty", NULL },
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{ "Pacmen Per Game", NULL },
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{ "Bonus Life", NULL },
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{ "Ghost Names", NULL },
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{ "Display FPS", NULL },
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{ "Restart", NULL },
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{ "Quit", NULL },
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};
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m = rb->menu_init(items, sizeof(items) / sizeof(*items),
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NULL, NULL, NULL, NULL);
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rb->button_clear_queue();
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while (!menu_quit) {
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result=rb->menu_show(m);
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switch(result)
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{
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case 0:
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new_setting=settings.difficulty;
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rb->set_option("Difficulty", &new_setting, INT,
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difficulty_options , 2, NULL);
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if (new_setting != settings.difficulty) {
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settings.difficulty=new_setting;
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need_restart=true;
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}
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break;
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case 1:
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new_setting=settings.numlives;
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rb->set_option("Pacmen Per Game", &new_setting, INT,
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numlives_options , 4, NULL);
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if (new_setting != settings.numlives) {
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settings.numlives=new_setting;
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need_restart=true;
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}
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break;
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case 2:
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new_setting=settings.bonus;
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rb->set_option("Bonus Life", &new_setting, INT,
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bonus_options , 4, NULL);
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if (new_setting != settings.bonus) {
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settings.bonus=new_setting;
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need_restart=true;
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}
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break;
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case 3:
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new_setting=settings.ghostnames;
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rb->set_option("Ghost Names", &new_setting, INT,
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ghostname_options , 2, NULL);
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if (new_setting != settings.ghostnames) {
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settings.ghostnames=new_setting;
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need_restart=true;
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}
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break;
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case 4: /* Show FPS */
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rb->set_option("Display FPS",&settings.showfps,INT,
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noyes, 2, NULL);
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break;
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case 5: /* Restart */
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need_restart=true;
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menu_quit=1;
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break;
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default:
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menu_quit=1;
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break;
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}
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}
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rb->menu_exit(m);
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if (need_restart) {
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init_PacmanMachine(settings_to_dip(settings));
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}
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/* Possible results:
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exit game
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restart game
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usb connected
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*/
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return (result==6);
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}
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/*
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Runs the game engine for one frame.
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*/
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static int gameProc( void )
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{
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int x;
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int fps;
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char str[80];
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int status;
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long end_time;
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int frame_counter = 0;
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int yield_counter = 0;
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while (1)
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{
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/* Run the machine for one frame (1/60th second) */
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run();
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frame_counter++;
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/* Check the button status */
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status = rb->button_status();
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#ifdef HAS_BUTTON_HOLD
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if (rb->button_hold())
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status = PACMAN_MENU;
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#endif
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if ((status & PACMAN_MENU) == PACMAN_MENU
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#ifdef PACMAN_RC_MENU
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|| status == PACMAN_RC_MENU
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#endif
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) {
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end_time = *rb->current_tick;
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x = pacbox_menu();
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rb->lcd_clear_display();
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#ifdef HAVE_REMOTE_LCD
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rb->lcd_remote_clear_display();
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rb->lcd_remote_update();
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#endif
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if (x == 1) { return 1; }
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start_time += *rb->current_tick-end_time;
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}
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#ifdef PACMAN_HAS_REMOTE
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setDeviceMode( Joy1_Left, (status & PACMAN_LEFT || status == PACMAN_RC_LEFT) ? DeviceOn : DeviceOff);
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setDeviceMode( Joy1_Right, (status & PACMAN_RIGHT || status == PACMAN_RC_RIGHT) ? DeviceOn : DeviceOff);
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setDeviceMode( Joy1_Up, (status & PACMAN_UP || status == PACMAN_RC_UP) ? DeviceOn : DeviceOff);
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setDeviceMode( Joy1_Down, (status & PACMAN_DOWN || status == PACMAN_RC_DOWN) ? DeviceOn : DeviceOff);
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setDeviceMode( CoinSlot_1, (status & PACMAN_COIN || status == PACMAN_RC_COIN) ? DeviceOn : DeviceOff);
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setDeviceMode( Key_OnePlayer, (status & PACMAN_1UP || status == PACMAN_RC_1UP) ? DeviceOn : DeviceOff);
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setDeviceMode( Key_TwoPlayers, (status & PACMAN_2UP || status == PACMAN_RC_2UP) ? DeviceOn : DeviceOff);
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#else
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setDeviceMode( Joy1_Left, (status & PACMAN_LEFT) ? DeviceOn : DeviceOff);
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setDeviceMode( Joy1_Right, (status & PACMAN_RIGHT) ? DeviceOn : DeviceOff);
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setDeviceMode( Joy1_Up, (status & PACMAN_UP) ? DeviceOn : DeviceOff);
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setDeviceMode( Joy1_Down, (status & PACMAN_DOWN) ? DeviceOn : DeviceOff);
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setDeviceMode( CoinSlot_1, (status & PACMAN_COIN) ? DeviceOn : DeviceOff);
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setDeviceMode( Key_OnePlayer, (status & PACMAN_1UP) ? DeviceOn : DeviceOff);
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#ifdef PACMAN_2UP
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setDeviceMode( Key_TwoPlayers, (status & PACMAN_2UP) ? DeviceOn : DeviceOff);
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#endif
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#endif
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/* We only update the screen every third frame - Pacman's native
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framerate is 60fps, so we are attempting to display 20fps */
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if (frame_counter == 60 / FPS) {
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frame_counter = 0;
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video_frames++;
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yield_counter ++;
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if (yield_counter == FPS) {
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yield_counter = 0;
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rb->yield ();
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}
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/* The following functions render the Pacman screen from the
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contents of the video and color ram. We first update the
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background, and then draw the Sprites on top.
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*/
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renderBackground( video_buffer );
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renderSprites( video_buffer );
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blit_display(rb->lcd_framebuffer,video_buffer);
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if (settings.showfps) {
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fps = (video_frames*HZ*100) / (*rb->current_tick-start_time);
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rb->snprintf(str,sizeof(str),"%d.%02d / %d fps ",
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fps/100,fps%100,FPS);
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rb->lcd_putsxy(0,0,str);
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}
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rb->lcd_update();
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/* Keep the framerate at Pacman's 60fps */
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end_time = start_time + (video_frames*HZ)/FPS;
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while (TIME_BEFORE(*rb->current_tick,end_time)) {
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rb->sleep(1);
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}
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}
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}
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return 0;
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}
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enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
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{
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(void)parameter;
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#ifdef USE_IRAM
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void* audiobuf;
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int audiosize;
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#endif
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rb = api;
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#ifdef USE_IRAM
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/* We need to stop audio playback in order to use IRAM, so we grab
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the audio buffer - but we don't use it. */
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audiobuf = rb->plugin_get_audio_buffer(&audiosize);
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rb->memcpy(iramstart, iramcopy, iramend-iramstart);
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rb->memset(iedata, 0, iend - iedata);
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#endif
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(true);
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#endif
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rb->lcd_set_foreground(LCD_WHITE);
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rb->lcd_set_background(LCD_BLACK);
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rb->lcd_clear_display();
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rb->lcd_update();
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/* Set the default settings */
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settings.difficulty = 0; /* Normal */
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settings.numlives = 2; /* 3 lives */
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settings.bonus = 0; /* 10000 points */
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settings.ghostnames = 0; /* Normal names */
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settings.showfps = 0; /* Do not show FPS */
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configfile_init(rb);
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if (configfile_load(SETTINGS_FILENAME, config,
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sizeof(config)/sizeof(*config),
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SETTINGS_MIN_VERSION
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) < 0)
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{
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/* If the loading failed, save a new config file (as the disk is
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already spinning) */
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configfile_save(SETTINGS_FILENAME, config,
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sizeof(config)/sizeof(*config),
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SETTINGS_VERSION);
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}
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/* Keep a copy of the saved version of the settings - so we can check if
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the settings have changed when we quit */
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old_settings = settings;
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/* Initialise the hardware */
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init_PacmanMachine(settings_to_dip(settings));
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/* Load the romset */
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if (loadROMS()) {
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start_time = *rb->current_tick-1;
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gameProc();
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/* Save the user settings if they have changed */
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if (rb->memcmp(&settings,&old_settings,sizeof(settings))!=0) {
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rb->splash(0,true,"Saving settings...");
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configfile_save(SETTINGS_FILENAME, config,
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sizeof(config)/sizeof(*config),
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SETTINGS_VERSION);
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}
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} else {
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rb->splash(HZ*2,true,"No ROMs in /.rockbox/pacman/");
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}
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#ifdef HAVE_ADJUSTABLE_CPU_FREQ
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rb->cpu_boost(false);
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#endif
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return PLUGIN_OK;
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}
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