static void key_pad(struct pong *p, int pad, int up, int down)
{
struct player *player = &p->player[pad];
if(player->iscpu) {
if((pad && (p->ball.x/RES > CPU_PLAYER_RIGHT_DIST)) /* cpu right */
|| (!pad && (p->ball.x/RES < CPU_PLAYER_LEFT_DIST)) /* cpu left */)
{
if(p->ball.y/RES > player->w_pad) /* player goes down */
padmove(&player->w_pad, MOVE_STEP);
if(p->ball.y/RES < player->w_pad) /* player goes up */
padmove(&player->w_pad, -MOVE_STEP);
}
if(down || up) {
/* if player presses control keys stop cpu player */
player->iscpu = false;
p->player[0].score = p->player[1].score = 0; /* reset the score */
rb->lcd_clear_display(); /* get rid of the text */
}
}
else {
if(down) /* player goes down */
padmove(&player->w_pad, MOVE_STEP);
if(up) /* player goes up */
padmove(&player->w_pad, -MOVE_STEP);
}
}
int keys(struct pong *p)
{
int key;
int time = 4; /* number of ticks this function will loop reading keys */
int start = *rb->current_tick;
int end = start + time;
while(end > *rb->current_tick) {
key = rb->button_get_w_tmo(end - *rb->current_tick);
if(key & PONG_QUIT)
return 0; /* exit game NOW */
if(key & PONG_LEFT_DOWN) /* player left goes down */
padmove(&p->w_pad[0], MOVE_STEP);
if(key & PONG_LEFT_UP) /* player left goes up */
padmove(&p->w_pad[0], -MOVE_STEP);
if(key & PONG_RIGHT_DOWN) /* player right goes down */
padmove(&p->w_pad[1], MOVE_STEP);
if(key & PONG_RIGHT_UP) /* player right goes up */
padmove(&p->w_pad[1], -MOVE_STEP);
if(rb->default_event_handler(key) == SYS_USB_CONNECTED)
return -1; /* exit game because of USB */
}
return 1; /* return 0 to exit game */
}
static int keys(struct pong *p)
{
int key;
#ifdef PONG_PAUSE
static bool pause = false;
#endif
/* number of ticks this function will loop reading keys */
#ifndef HAVE_TOUCHSCREEN
int time = 4;
#else
int time = 1;
#endif
int start = *rb->current_tick;
int end = start + time;
while(TIME_BEFORE(*rb->current_tick, end)) {
key = rb->button_get_w_tmo(end - *rb->current_tick);
#ifdef HAVE_TOUCHSCREEN
short touch_x, touch_y;
if(key & BUTTON_TOUCHSCREEN)
{
struct player *player;
touch_x = rb->button_get_data() >> 16;
touch_y = rb->button_get_data() & 0xFFFF;
player = &p->player[0];
if(touch_x >= player->xpos && touch_x <= player->xpos+(PAD_WIDTH*4))
{
padmove(&player->w_pad, touch_y-(player->e_pad*2+PAD_HEIGHT)/2);
if (player->iscpu) {
/* if left player presses control keys stop cpu player */
player->iscpu = false;
p->player[0].score = p->player[1].score = 0; /* reset the score */
rb->lcd_clear_display(); /* get rid of the text */
}
}
player = &p->player[1];
if(touch_x >= player->xpos-(PAD_WIDTH*4) && touch_x <= player->xpos)
{
padmove(&player->w_pad, touch_y-(player->e_pad*2+PAD_HEIGHT)/2);
if (player->iscpu) {
/* if right player presses control keys stop cpu player */
player->iscpu = false;
p->player[0].score = p->player[1].score = 0; /* reset the score */
rb->lcd_clear_display(); /* get rid of the text */
}
}
}
#endif
#ifdef HAS_BUTTON_HOLD
if (rb->button_hold())
return 2; /* Pause game */
#endif
if(key & PONG_QUIT
#ifdef PONG_RC_QUIT
|| key & PONG_RC_QUIT
#endif
)
return 0; /* exit game NOW */
#ifdef PONG_PAUSE
if(key == PONG_PAUSE)
pause = !pause;
if(pause)
return 2; /* Pause game */
#endif
key = rb->button_status(); /* ignore BUTTON_REPEAT */
key_pad(p, 0, (key & PONG_LEFT_UP), (key & PONG_LEFT_DOWN));
key_pad(p, 1, (key & PONG_RIGHT_UP), (key & PONG_RIGHT_DOWN));
if(rb->default_event_handler(key) == SYS_USB_CONNECTED)
return -1; /* exit game because of USB */
}
return 1; /* return 0 to exit game */
}
