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Move two steps on each move up/down. (Attempt to make it more playable after

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user input, maybe I should try it myself on target soon)
Replaced hard-coded LCD sizes with the proper defines.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4797 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Daniel Stenberg 2004-06-23 06:59:16 +00:00
parent ae74060e57
commit 8ea434834c
1 changed files with 15 additions and 13 deletions
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28
apps/plugins/pong.c
View file

@ -31,6 +31,8 @@
#define RES 100 #define RES 100
#define MOVE_STEP 2 /* move pad this many steps up/down each move */
static struct plugin_api* rb; static struct plugin_api* rb;
struct pong { struct pong {
@ -54,7 +56,7 @@ void singlepad(int x, int y, int set)
void pad(struct pong *p, int pad) void pad(struct pong *p, int pad)
{ {
static int xpos[2]={0, 112-PAD_WIDTH}; static int xpos[2]={0, LCD_WIDTH-PAD_WIDTH};
/* clear existing pad */ /* clear existing pad */
singlepad(xpos[pad], p->e_pad[pad], 0); singlepad(xpos[pad], p->e_pad[pad], 0);
@ -72,7 +74,7 @@ bool wallcollide(struct pong *p, int pad)
the wall */ the wall */
if(pad) { if(pad) {
/* right-side */ /* right-side */
if(p->ballx > 112*RES) if(p->ballx > LCD_WIDTH*RES)
return true; return true;
} }
else { else {
@ -107,7 +109,7 @@ bool padcollide(struct pong *p, int pad, int *info)
if(pad) { if(pad) {
/* right-side */ /* right-side */
if((x + BALL_WIDTH) > (112 - PAD_WIDTH)) if((x + BALL_WIDTH) > (LCD_WIDTH - PAD_WIDTH))
return true; /* phump */ return true; /* phump */
} }
else { else {
@ -162,7 +164,7 @@ void score(struct pong *p, int pad)
/* then move the X-speed of the ball and give it a random Y position */ /* then move the X-speed of the ball and give it a random Y position */
p->ballspeedx = -p->ballspeedx; p->ballspeedx = -p->ballspeedx;
p->bally = rb->rand()%(64-BALL_HEIGTH); p->bally = rb->rand()%(LCD_HEIGHT-BALL_HEIGTH);
/* restore Y-speed to default */ /* restore Y-speed to default */
p->ballspeedy = (p->ballspeedy > 0) ? SPEEDY : -SPEEDY; p->ballspeedy = (p->ballspeedy > 0) ? SPEEDY : -SPEEDY;
@ -191,10 +193,10 @@ void ball(struct pong *p)
newy = p->bally/RES; newy = p->bally/RES;
/* detect if ball hits a wall */ /* detect if ball hits a wall */
if(newy + BALL_HEIGTH > 64) { if(newy + BALL_HEIGTH > LCD_HEIGHT) {
/* hit floor, bounce */ /* hit floor, bounce */
p->ballspeedy = -p->ballspeedy; p->ballspeedy = -p->ballspeedy;
newy = 64 - BALL_HEIGTH; newy = LCD_HEIGHT - BALL_HEIGTH;
p->bally = newy * RES; p->bally = newy * RES;
} }
else if(newy < 0) { else if(newy < 0) {
@ -224,8 +226,8 @@ void ball(struct pong *p)
void padmove(int *pos, int dir) void padmove(int *pos, int dir)
{ {
*pos += dir; *pos += dir;
if(*pos > (64-PAD_HEIGHT)) if(*pos > (LCD_HEIGHT-PAD_HEIGHT))
*pos = (64-PAD_HEIGHT); *pos = (LCD_HEIGHT-PAD_HEIGHT);
else if(*pos < 0) else if(*pos < 0)
*pos = 0; *pos = 0;
} }
@ -245,16 +247,16 @@ bool keys(struct pong *p)
return false; /* exit game NOW */ return false; /* exit game NOW */
if(key & BUTTON_LEFT) /* player left goes down */ if(key & BUTTON_LEFT) /* player left goes down */
padmove(&p->w_pad[0], 1); padmove(&p->w_pad[0], MOVE_STEP);
if(key & BUTTON_F1) /* player left goes up */ if(key & BUTTON_F1) /* player left goes up */
padmove(&p->w_pad[0], -1); padmove(&p->w_pad[0], - MOVE_STEP);
if(key & BUTTON_RIGHT) /* player right goes down */ if(key & BUTTON_RIGHT) /* player right goes down */
padmove(&p->w_pad[1], 1); padmove(&p->w_pad[1], MOVE_STEP);
if(key & BUTTON_F3) /* player right goes up */ if(key & BUTTON_F3) /* player right goes up */
padmove(&p->w_pad[1], -1); padmove(&p->w_pad[1], -MOVE_STEP);
} }
return true; /* return false to exit game */ return true; /* return false to exit game */
} }
@ -263,7 +265,7 @@ void showscore(struct pong *p)
{ {
static char buffer[20]; static char buffer[20];
rb->snprintf(buffer, 20, "%d - %d", p->score[0], p->score[1]); rb->snprintf(buffer, sizeof(buffer), "%d - %d", p->score[0], p->score[1]);
rb->lcd_puts(4, 0, buffer); rb->lcd_puts(4, 0, buffer);
} }