0e027bd90c
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10157 a1c6a512-1295-4272-9138-f99709370657
382 lines
10 KiB
C
382 lines
10 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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* Copyright (C) 2004 Daniel Stenberg
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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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#ifdef HAVE_LCD_BITMAP
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PLUGIN_HEADER
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#define PAD_HEIGHT LCD_HEIGHT / 6 /* Recorder: 10 iRiver: 21 */
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#define PAD_WIDTH LCD_WIDTH / 50 /* Recorder: 2 iRiver: 2 */
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#define BALL_HEIGTH LCD_HEIGHT / 32 /* Recorder: 2 iRiver: 4 */
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#define BALL_WIDTH LCD_HEIGHT / 32 /* We want a square ball */
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#define SPEEDX ( LCD_WIDTH * 3 ) / 2 /* Recorder: 168 iRiver: 240 */
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#define SPEEDY LCD_HEIGHT * 2 /* Recorder: 128 iRiver: 256 */
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#define RES 100
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#define MOVE_STEP LCD_HEIGHT / 32 /* move pad this many steps up/down each move */
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/* variable button definitions */
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#if CONFIG_KEYPAD == RECORDER_PAD
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#define PONG_QUIT BUTTON_OFF
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#define PONG_LEFT_UP BUTTON_F1
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#define PONG_LEFT_DOWN BUTTON_LEFT
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#define PONG_RIGHT_UP BUTTON_F3
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#define PONG_RIGHT_DOWN BUTTON_RIGHT
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#elif CONFIG_KEYPAD == ONDIO_PAD
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#define PONG_QUIT BUTTON_OFF
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#define PONG_LEFT_UP BUTTON_LEFT
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#define PONG_LEFT_DOWN BUTTON_MENU
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#define PONG_RIGHT_UP BUTTON_UP
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#define PONG_RIGHT_DOWN BUTTON_DOWN
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#elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
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(CONFIG_KEYPAD == IRIVER_H300_PAD)
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#define PONG_QUIT BUTTON_OFF
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#define PONG_LEFT_UP BUTTON_UP
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#define PONG_LEFT_DOWN BUTTON_DOWN
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#define PONG_RIGHT_UP BUTTON_ON
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#define PONG_RIGHT_DOWN BUTTON_MODE
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#define PONG_RC_QUIT BUTTON_RC_STOP
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#elif (CONFIG_KEYPAD == IPOD_4G_PAD) || \
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(CONFIG_KEYPAD == IPOD_3G_PAD)
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#define PONG_QUIT BUTTON_SELECT
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#define PONG_LEFT_UP BUTTON_MENU
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#define PONG_LEFT_DOWN BUTTON_LEFT
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#define PONG_RIGHT_UP BUTTON_RIGHT
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#define PONG_RIGHT_DOWN BUTTON_PLAY
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#elif (CONFIG_KEYPAD == IAUDIO_X5_PAD)
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#define PONG_QUIT BUTTON_POWER
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#define PONG_LEFT_UP BUTTON_UP
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#define PONG_LEFT_DOWN BUTTON_DOWN
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#define PONG_RIGHT_UP BUTTON_REC
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#define PONG_RIGHT_DOWN BUTTON_PLAY
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#elif (CONFIG_KEYPAD == GIGABEAT_PAD)
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#define PONG_QUIT BUTTON_A
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#define PONG_LEFT_UP BUTTON_UP
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#define PONG_LEFT_DOWN BUTTON_DOWN
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#define PONG_RIGHT_UP BUTTON_POWER
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#define PONG_RIGHT_DOWN BUTTON_MENU
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#endif
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static struct plugin_api* rb;
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struct pong {
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int ballx; /* current X*RES position of the ball */
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int bally; /* current Y*RES position of the ball */
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int w_pad[2]; /* wanted current Y positions of pads */
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int e_pad[2]; /* existing current Y positions of pads */
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int ballspeedx; /* */
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int ballspeedy; /* */
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int score[2];
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};
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void singlepad(int x, int y, int set)
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{
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if(set) {
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rb->lcd_fillrect(x, y, PAD_WIDTH, PAD_HEIGHT);
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}
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else {
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rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
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rb->lcd_fillrect(x, y, PAD_WIDTH, PAD_HEIGHT);
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rb->lcd_set_drawmode(DRMODE_SOLID);
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}
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}
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void pad(struct pong *p, int pad)
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{
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static int xpos[2]={0, LCD_WIDTH-PAD_WIDTH};
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/* clear existing pad */
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singlepad(xpos[pad], p->e_pad[pad], 0);
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/* draw wanted pad */
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singlepad(xpos[pad], p->w_pad[pad], 1);
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/* existing is now the wanted */
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p->e_pad[pad] = p->w_pad[pad];
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}
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bool wallcollide(struct pong *p, int pad)
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{
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/* we have already checked for pad-collision, just check if this hits
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the wall */
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if(pad) {
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/* right-side */
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if(p->ballx > LCD_WIDTH*RES)
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return true;
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}
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else {
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if(p->ballx < 0)
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return true;
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}
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return false;
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}
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/* returns true if the ball has hit a pad, and then the info variable
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will have extra angle info */
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bool padcollide(struct pong *p, int pad, int *info)
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{
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int x = p->ballx/RES;
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int y = p->bally/RES;
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if((y < (p->e_pad[pad]+PAD_HEIGHT)) &&
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(y + BALL_HEIGTH > p->e_pad[pad])) {
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/* Y seems likely right */
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/* store the delta between ball-middle MINUS pad-middle, so
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it returns:
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0 when the ball hits exactly the middle of the pad
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positive numbers when the ball is below the middle of the pad
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negative numbers when the ball is above the middle of the pad
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max number is +- PAD_HEIGHT/2
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*/
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*info = (y+BALL_HEIGTH/2) - (p->e_pad[pad] + PAD_HEIGHT/2);
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if(pad) {
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/* right-side */
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if((x + BALL_WIDTH) > (LCD_WIDTH - PAD_WIDTH))
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return true; /* phump */
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}
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else {
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if(x <= 0)
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return true;
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}
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}
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return false; /* nah */
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}
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void bounce(struct pong *p, int pad, int info)
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{
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(void)pad; /* not used right now */
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p->ballspeedx = -p->ballspeedx;
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/* info is the hit-angle into the pad */
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if(p->ballspeedy > 0) {
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/* downwards */
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if(info > 0) {
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/* below the middle of the pad */
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p->ballspeedy += info * RES/3;
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}
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else if(info < 0) {
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/* above the middle */
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p->ballspeedy = info * RES/2;
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}
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}
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else {
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/* upwards */
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if(info > 0) {
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/* below the middle of the pad */
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p->ballspeedy = info * RES/2;
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}
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else if(info < 0) {
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/* above the middle */
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p->ballspeedy -= info * RES/3;
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}
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}
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p->ballspeedy += rb->rand()%21-10;
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#if 0
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fprintf(stderr, "INFO: %d YSPEED: %d\n", info, p->ballspeedy);
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#endif
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}
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void score(struct pong *p, int pad)
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{
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rb->splash(HZ/4, true, "%s scores!", pad?"right":"left");
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rb->lcd_clear_display();
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p->score[pad]++;
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/* then move the X-speed of the ball and give it a random Y position */
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p->ballspeedx = -p->ballspeedx;
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p->bally = rb->rand()%(LCD_HEIGHT-BALL_HEIGTH);
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/* restore Y-speed to default */
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p->ballspeedy = (p->ballspeedy > 0) ? SPEEDY : -SPEEDY;
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/* set the existing pad positions to something weird to force pad
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updates */
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p->e_pad[0] = -1;
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p->e_pad[1] = -1;
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}
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void ball(struct pong *p)
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{
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int x = p->ballx/RES;
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int y = p->bally/RES;
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int newx;
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int newy;
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int info;
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/* movement */
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p->ballx += p->ballspeedx;
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p->bally += p->ballspeedy;
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newx = p->ballx/RES;
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newy = p->bally/RES;
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/* detect if ball hits a wall */
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if(newy + BALL_HEIGTH > LCD_HEIGHT) {
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/* hit floor, bounce */
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p->ballspeedy = -p->ballspeedy;
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newy = LCD_HEIGHT - BALL_HEIGTH;
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p->bally = newy * RES;
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}
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else if(newy < 0) {
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/* hit ceiling, bounce */
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p->ballspeedy = -p->ballspeedy;
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p->bally = 0;
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newy = 0;
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}
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/* detect if ball hit pads */
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if(padcollide(p, 0, &info))
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bounce(p, 0, info);
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else if(padcollide(p, 1, &info))
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bounce(p, 1, info);
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else if(wallcollide(p, 0))
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score(p, 1);
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else if(wallcollide(p, 1))
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score(p, 0);
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/* clear old position */
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rb->lcd_set_drawmode(DRMODE_SOLID|DRMODE_INVERSEVID);
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rb->lcd_fillrect(x, y, BALL_WIDTH, BALL_HEIGTH);
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rb->lcd_set_drawmode(DRMODE_SOLID);
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/* draw the new ball position */
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rb->lcd_fillrect(newx, newy, BALL_WIDTH, BALL_HEIGTH);
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}
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void padmove(int *pos, int dir)
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{
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*pos += dir;
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if(*pos > (LCD_HEIGHT-PAD_HEIGHT))
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*pos = (LCD_HEIGHT-PAD_HEIGHT);
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else if(*pos < 0)
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*pos = 0;
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}
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int keys(struct pong *p)
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{
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int key;
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int time = 4; /* number of ticks this function will loop reading keys */
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int start = *rb->current_tick;
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int end = start + time;
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while(end > *rb->current_tick) {
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key = rb->button_get_w_tmo(end - *rb->current_tick);
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if(key & PONG_QUIT
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#ifdef PONG_RC_QUIT
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|| key & PONG_RC_QUIT
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#endif
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)
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return 0; /* exit game NOW */
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if(key & PONG_LEFT_DOWN) /* player left goes down */
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padmove(&p->w_pad[0], MOVE_STEP);
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if(key & PONG_LEFT_UP) /* player left goes up */
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padmove(&p->w_pad[0], -MOVE_STEP);
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if(key & PONG_RIGHT_DOWN) /* player right goes down */
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padmove(&p->w_pad[1], MOVE_STEP);
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if(key & PONG_RIGHT_UP) /* player right goes up */
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padmove(&p->w_pad[1], -MOVE_STEP);
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if(rb->default_event_handler(key) == SYS_USB_CONNECTED)
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return -1; /* exit game because of USB */
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}
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return 1; /* return 0 to exit game */
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}
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void showscore(struct pong *p)
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{
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static char buffer[20];
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int w;
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rb->snprintf(buffer, sizeof(buffer), "%d - %d", p->score[0], p->score[1]);
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w = rb->lcd_getstringsize((unsigned char *)buffer, NULL, NULL);
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rb->lcd_putsxy( (LCD_WIDTH / 2) - (w / 2), 0, (unsigned char *)buffer);
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}
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/* this is the plugin entry point */
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enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
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{
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struct pong pong;
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int game = 1;
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/* init the struct with some silly values to start with */
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pong.ballx = 20*RES;
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pong.bally = 20*RES;
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pong.e_pad[0] = 0;
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pong.w_pad[0] = 7;
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pong.e_pad[1] = 0;
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pong.w_pad[1] = 40;
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pong.ballspeedx = SPEEDX;
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pong.ballspeedy = SPEEDY;
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pong.score[0] = pong.score[1] = 0; /* lets start at 0 - 0 ;-) */
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/* if you don't use the parameter, you can do like
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this to avoid the compiler warning about it */
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(void)parameter;
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rb = api; /* use the "standard" rb pointer */
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/* Clear screen */
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rb->lcd_clear_display();
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/* go go go */
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while(game > 0) {
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showscore(&pong);
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pad(&pong, 0); /* draw left pad */
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pad(&pong, 1); /* draw right pad */
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ball(&pong); /* move and draw ball */
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rb->lcd_update();
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game = keys(&pong); /* deal with keys */
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}
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return (game == 0) ? PLUGIN_OK : PLUGIN_USB_CONNECTED;
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}
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#endif /* HAVE_LCD_BITMAP */
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