static void move_mouse(void)
{
if ((MOUINFO->xpos != MSCURSOR->xcord) ||
(MOUINFO->ypos != MSCURSOR->ycord)) {
int check = MOUINFO->docheck;
int dospec = SPECIALMODE && MSCURSOR->displayed;
MOUINFO->docheck = FALSE;
if (dospec) draw_special();
GrMoveCursor(MSCURSOR, MOUINFO->xpos, MOUINFO->ypos);
if (dospec) draw_special();
MOUINFO->docheck = check;
}
}
static void erase_mouse(void)
{
int check = MOUINFO->docheck;
MOUINFO->docheck = FALSE;
if(SPECIALMODE) draw_special();
GrEraseCursor(MSCURSOR);
MOUINFO->docheck = check;
}
static void draw_mouse(void)
{
int check = MOUINFO->docheck;
MOUINFO->docheck = FALSE;
GrDisplayCursor(MSCURSOR);
if(SPECIALMODE) draw_special();
MOUINFO->docheck = check;
}
/* Animate special objects */
void animate_specials (void) {
struct dllist *list = special_list,*next;
while (list) {
struct SpecialObj *obj=list->data;
/* Check for collisions */
if(obj->hitship)
ship_hit_special (obj);
if(obj->hitprojectile)
projectile_hit_special(obj);
/* Animate */
if(obj->animate)
obj->animate(obj);
if (obj->timer > 0)
obj->timer--;
/* Draw the object on all viewports */
draw_special (obj);
/* Check if the object has expired.
* If life < 0, the object has no time limit */
next = list->next;
if(obj->life > 0) obj->life--;
else if (obj->life == 0) {
if(obj->destroy)
obj->destroy(obj);
free (obj);
if(list==special_list)
special_list=dllist_remove(list);
else
dllist_remove(list);
}
list = next;
}
}
/* The main game loop */
static void do_game(game_t *p_game)
{
uint8_t exit=FALSE;
while(!exit)
{
uint16_t input = get_input(p_game);
uint16_t fire;
int i;
exit = input & FE_EVENT_EXIT;
fire = input & FE_EVENT_SELECT;
/* Move the paddle (according to input) */
update_paddle(&p_game->paddle, input & FE_EVENT_LEFT ? 4:0, input & FE_EVENT_RIGHT ? 4:0);
/* Handle the ball(s) */
p_game->free_ball = -1;
for (i=0; i<MAX_BALLS; i++)
{
/* Unused balls are skipped */
if (!(p_game->p_balls[i].state & BALL_STATE_ACTIVE))
{
draw_ball(&p_game->p_balls[i]);
p_game->free_ball = i;
continue;
}
/* The player is holding the ball */
if (p_game->p_balls[i].state & BALL_STATE_HOLDING)
{
p_game->p_balls[i].lastx = p_game->p_balls[i].x;
p_game->p_balls[i].x += p_game->paddle.x-p_game->paddle.lastx;
if (fire)
{
/* The player relases the ball. The following will
* clear the HOLDING-bit. It will also shoot the
* ball away upwards.
*/
p_game->p_balls[i].dx = 1;
p_game->p_balls[i].state &= (0xff ^ BALL_STATE_HOLDING);
bounce_ball_paddle(p_game, &p_game->p_balls[i]);
}
}
else if (paddle_ball_collide(&p_game->paddle, &p_game->p_balls[i]))
{
/* Hold the ball if the pad is sticky */
if (p_game->paddle.type & SPECIAL_STICKY)
{
p_game->p_balls[i].dy = 0;
p_game->p_balls[i].dx = 0;
p_game->p_balls[i].state |= BALL_STATE_HOLDING;
p_game->paddle.type--; /* Sticky for maximum 3 rounds */
}
else
bounce_ball_paddle(p_game, &p_game->p_balls[i]);
}
/* Check collisions against blocks */
block_ball_collide(p_game, &p_game->p_balls[i]);
draw_ball(&p_game->p_balls[i]);
/* Update the ball (and check if it moves out of the playfield) */
if (update_ball(p_game, &p_game->p_balls[i]))
{
/* Ball is out of bounds - Remove it */
init_ball(&p_game->p_balls[i], 0, 0, 0);
p_game->nr_balls--;
}
}
/* Handle the specials */
p_game->free_special = -1;
for (i=0; i<MAX_SPECIALS; i++)
{
int res;
/* Always draw the specials for timing-reasons */
draw_special(&p_game->p_specials[i]);
/* Inactive special - continue */
if (!p_game->p_specials[i].type)
{
p_game->free_special = i;
continue;
}
/* This moves the special and also checks if it collides with the paddle */
res = update_special(p_game, &p_game->p_specials[i]);
switch(res)
{
case 1: /* Player took the special */
switch(p_game->p_specials[i].type)
{
case SPECIAL_EXTRA_BALL:
if (p_game->free_ball != -1) /* Check if there is free space for the ball */
{
p_game->nr_balls++;
init_ball(&p_game->p_balls[p_game->free_ball], p_game->paddle.x+PADDLE_WIDTH/2,
PADDLE_Y-PADDLE_HEIGHT, BALL_STATE_ACTIVE);
}
break;
case SPECIAL_LONG_PADDLE:
p_game->paddle.width = PADDLE_LONG_WIDTH;
break;
case SPECIAL_SHORT_PADDLE:
p_game->paddle.width = PADDLE_SHORT_WIDTH;
break;
case SPECIAL_EXTRA_LIFE:
if (p_game->lives < MAX_LIVES)
{
p_game->lives++;
draw_lives(p_game);
}
break;
case SPECIAL_STICKY:
/*
* For the sticky and destroyers, we use the bits
* from the flag and downwards as counters.
*
* i.e: SPECIAL_STICKY is the third bit, which means
* that type becomes 0b00000111. type is then
* lowered when the ball hits the paddle and after
* zeroing the lower bits, the SPECIAL_STICKY bit is
* finally cleared. This gives a maximum of three
* sticky rounds.
*
* These two only adds 30 bytes to the binary :-)
*/
p_game->paddle.type = (SPECIAL_STICKY | (SPECIAL_STICKY-1));
break;
case SPECIAL_DESTROYER:
p_game->p_balls[0].state |= (BALL_STATE_DESTROYER | (BALL_STATE_DESTROYER-1));
break;
case SPECIAL_FLOOR:
p_game->state |= (SPECIAL_FLOOR | 2); /* Three times */
fe_fill_area(0, SCREEN_HEIGHT-FLOOR_HEIGHT, SCREEN_WIDTH, FLOOR_HEIGHT);
break;
}
/* Fall through */
case -1:
/* Remove the special */
p_game->nr_specials--;
fe_clear_area(p_game->p_specials[i].x, p_game->p_specials[i].y-1, SPECIAL_WIDTH, SPECIAL_HEIGHT+1);
p_game->p_specials[i].type = SPECIAL_NONE;
break;
}
}
/* No balls left in play */
if (!p_game->nr_balls)
{
if (--p_game->lives == 0)
exit = TRUE; /* No lives left! */
else
{
/* Restart the game */
p_game->nr_balls = 1;
draw_screen(p_game);
init_paddle(&p_game->paddle, SPECIAL_NONE, SCREEN_WIDTH/2-PADDLE_WIDTH/2);
init_ball(&p_game->p_balls[0], p_game->paddle.x+p_game->paddle.width/2,
PADDLE_Y-PADDLE_HEIGHT, BALL_STATE_HOLDING | BALL_STATE_ACTIVE);
}
}
/* No blocks left to remove */
if (!p_game->nr_blocks)
{
fe_sleep(LEVEL_SLEEP_PERIOD);
if (handle_level_finished(p_game) < 0)
exit = TRUE; /* Last level */
}
draw_paddle(&p_game->paddle);
/* Sleep for a short while. */
#if !defined(TARGET_REX)
fe_sleep(SLEEP_PERIOD);
#endif /* TARGET_REX */
}
}