bool
is_pos_seeing (struct pos *p0, struct anim *k1, enum dir dir)
{
struct coord m0, m1, mt1, mb1; struct pos p, p1, pk, pke;
con_m (p0, &m0);
coord_f cf;
if (is_kid_climb (&k1->f) || is_anim_fall (&k1->f)) {
coord2room (_mt (&k1->f, &mt1), m0.room, &mt1);
coord2room (_m (&k1->f, &m1), m0.room, &m1);
coord2room (_mbo (&k1->f, &mb1), m0.room, &mb1);
double dt, dm, db;
dt = (mt1.room == m0.room) ? dist_coord (&m0, &mt1) : INFINITY;
dm = (m1.room == m0.room) ? dist_coord (&m0, &m1) : INFINITY;
db = (mb1.room == m0.room) ? dist_coord (&m0, &mb1) : INFINITY;
if (dt <= dm && dt <= db)
cf = (dir == LEFT) ? _tr : _tl;
else if (db <= dt && db <= dm)
cf = (dir == LEFT) ? _br : _bl;
else cf = (dir == LEFT) ? _mr : _ml;
} else cf = (dir == LEFT) ? _mr : _ml;
surveyo (cf, -8, +0, pos, &k1->f, &m1, NULL, NULL);
coord2room (&m0, p0->room, &m0);
coord2room (&m1, p0->room, &m1);
pos (&m1, &p1);
if (dir == LEFT) {
if (is_opaque_at_left (p0)) return false;
if (is_opaque_at_right (&p1)) return false;
if (peqr (&p1, p0, +0, -1)) return true;
prel (p0, &pk, +0, -1);
prel (&p1, &pke, +0, +1);
} else {
if (is_opaque_at_right (p0)) return false;
if (is_opaque_at_left (&p1)) return false;
if (peqr (&p1, p0, +0, +1)) return true;
prel (p0, &pk, +0, +1);
prel (&p1, &pke, +0, -1);
}
if (peq (p0, &p1)) return true;
first_confg (&pk, &pke, opaque_cs, &p);
return p0->room == p1.room
&& m1.room == m0.room
&& p1.floor == p0->floor
&& ! (dir == LEFT && m1.x > m0.x)
&& ! (dir == RIGHT && m1.x < m0.x)
&& p.room == -1;
}
void
fight_hit (struct anim *k, struct anim *ke)
{
if (k->immortal || k->sword_immune) return;
if (k->current_lives <= 0) return;
if (is_anim_fall (&k->f) || is_kid_stairs (&k->f))
return;
place_on_the_ground (&k->f, &k->f.c);
k->xf.b = NULL;
if (! is_in_fight_mode (k)) k->current_lives = 0;
else k->current_lives--;
if (! is_guard (ke))
upgrade_skill (&ke->skill, &k->skill, k->total_lives);
int d = (k->f.dir == LEFT) ? +1 : -1;
struct pos pb;
survey (_m, pos, &k->f, NULL, &k->p, NULL);
prel (&k->p, &pb, 0, d);
if (k->current_lives <= 0 && ! is_strictly_traversable (&pb)) {
k->current_lives = 0;
k->death_reason = FIGHT_DEATH;
ke->alert_cycle = anim_cycle;
anim_die (k);
} else anim_sword_hit (k);
if (is_in_fight_mode (k)) {
backoff_from_range (ke, k, ATTACK_RANGE - 20, true, false);
get_in_range (ke, k, ATTACK_RANGE - 10, false, false);
}
k->splash = true;
if (k->id == current_kid_id) {
mr.flicker = 2;
mr.color = get_flicker_blood_color ();
play_audio (&harm_audio, NULL, k->id);
} else play_audio (&guard_hit_audio, NULL, k->id);
}
void
compute_choppers (void)
{
size_t i, j;
for (i = 0; i < chopper_nmemb; i++) {
struct chopper *c = &chopper[i];
if (c->inactive) continue;
switch (c->i) {
case 0:
if (! c->alert) c->alert = ! should_chomp (&c->p);
if ((c->wait-- <= 0 && should_chomp (&c->p)
&& (anim_cycle % CHOPPER_WAIT) ==
prandom_pos (&c->p, CHOPPER_WAIT - 1))
|| c->activate) {
c->i++;
register_changed_pos (&c->p, CHPOS_CHOPPER);
}
break;
case 1: c->i++;
if (c->alert) {
alert_guards (&c->p);
c->alert = false;
}
play_sample (chopper_sample, &c->p, -1);
register_changed_pos (&c->p, CHPOS_CHOPPER);
break;
case 2:
c->i++;
register_changed_pos (&c->p, CHPOS_CHOPPER);
break;
case 3:
c->i++;
register_changed_pos (&c->p, CHPOS_CHOPPER);
break;
case 4: c->i = 0; c->wait = CHOPPER_WAIT; c->activate = false;
register_changed_pos (&c->p, CHPOS_CHOPPER);
break;
}
if (c->i != 1 && c->i != 2 ) continue;
/* chomp kid */
for (j = 0; j < anima_nmemb; j++) {
struct anim *a = &anima[j];
if (a->type == MOUSE
|| is_anim_fall (&a->f)
|| a->immortal
|| a->chopper_immune
|| (a->action == kid_walk && a->walk != -1))
continue;
struct pos pbf, pbb;
survey (_bf, pos, &a->f, NULL, &pbf, NULL);
survey (_bb, pos, &a->f, NULL, &pbb, NULL);
pos2room (&pbf, c->p.room, &pbf);
pos2room (&pbb, c->p.room, &pbb);
if ((((pbf.room == c->p.room
&& pbf.floor == c->p.floor)
|| (pbb.room == c->p.room
&& pbb.floor == c->p.floor))
&& ((a->f.dir == LEFT && pbf.place < c->p.place
&& pbb.place >= c->p.place)
|| (a->f.dir == RIGHT && pbf.place >= c->p.place
&& pbb.place < c->p.place)))
&& (! is_anim_dead (&a->f) || ! is_anim_chopped (&a->f))) {
if (a->type != SKELETON) c->blood = true;
a->splash = true;
a->p = c->p;
a->death_reason = CHOPPER_DEATH;
if (a->id == current_kid_id) {
mr.flicker = 2;
mr.color = get_flicker_blood_color ();
}
if (a->type == SKELETON)
play_sample (skeleton_sample, &c->p, -1);
else play_sample (chopped_sample, &c->p, -1);
anim_die_chopped (a);
}
}
}
}
static bool
flow (struct anim *k)
{
struct pos pmt;
bool keep_sword = k->key.down;
bool defense = k->key.up && ! k->key.shift
&& ! k->key.left && ! k->key.right;
bool attack = k->key.shift && ! k->key.up
&& ! k->key.left && ! k->key.right;
bool walkf = ((k->f.dir == RIGHT) && k->key.right)
|| ((k->f.dir == LEFT) && k->key.left);
bool walkb = ((k->f.dir == RIGHT) && k->key.left)
|| ((k->f.dir == LEFT) && k->key.right);
struct anim *ke = get_anim_by_id (k->enemy_id);
k->keep_sword_fast = (k->enemy_id != -1
&& ke->current_lives > 0
&& ! is_anim_fall (&ke->f));
if (k->oaction != kid_sword_normal) k->i = -1;
if (k->oaction == kid_sword_normal
&& k->current_lives <= 0) {
survey (_mt, pos, &k->f, NULL, &pmt, NULL);
k->p = pmt;
kid_die (k);
return false;
}
if (k->oaction == kid_sword_normal) {
if (keep_sword) {
/* keep_sword_fast = true; */
kid_keep_sword (k);
return false;
}
if (defense) {
kid_sword_defense (k);
return false;
}
if (attack) {
kid_sword_attack (k);
return false;
}
if (walkf) {
kid_sword_walkf (k);
return false;
}
if (walkb) {
kid_sword_walkb (k);
return false;
}
}
k->fo.b = kid_sword_normal_00;
k->fo.dx = k->fo.dy = +0;
select_xframe (&k->xf, sword_frameset, 13);
if (k->f.b == kid_take_sword_frameset[3].frame) k->fo.dx = -4;
if (k->f.b == kid_sword_walkf_frameset[1].frame) k->fo.dx = +5;
if (k->f.b == kid_sword_walkb_frameset[1].frame) k->fo.dx = +2;
k->i++;
return true;
}
bool
is_safe_to_follow (struct anim *k0, struct anim *k1, enum dir dir)
{
/* not aware of enemy position */
if (! is_valid_pos (&k0->enemy_pos)) return false;
struct pos p0, p, p1, pke, pk;
survey (_m, pos, &k0->f, NULL, &p0, NULL);
survey ((k0->f.dir == LEFT) ? _mr : _ml,
pos, &k1->f, NULL, &p1, NULL);
pos2room (&p1, p0.room, &p1);
/* not reachable, to start with */
if (p0.room != p1.room) return false;
if (p0.floor > p1.floor) return false;
/* the character went down after the enemy */
if (p0.floor != k0->enemy_pos.floor) {
/* enum dir odir = (dir == LEFT) ? RIGHT : LEFT; */
/* if (is_on_back (k0, k1) && is_seeing (k0, k1, odir) */
/* && p0.floor == p1.floor) return true; */
if (is_anim_seeing (k0, k1, LEFT)
|| is_anim_seeing (k0, k1, RIGHT)) return true;
return false;
}
/* if falling the chasing is inevitable (necessary to prevent
leave_fight_logic from forgeting enemy based on the facing
direction of the is_in_range check) */
if (is_anim_fall (&k0->f)) return true;
if (dir == LEFT) {
if (! is_safe_at_left (&p0)) return false;
if (! is_safe_at_right (&k0->enemy_pos, &k0->f)) return false;
if (peqr (&k0->enemy_pos, &p0, +0, -1)) return true;
prel (&p0, &pk, +0, -1);
prel (&k0->enemy_pos, &pke, +0, +1);
if (is_collidable_at_right (&pk, &k0->f))
return false;
} else {
if (! is_safe_at_right (&p0, &k0->f)) return false;
if (! is_safe_at_left (&k0->enemy_pos)) return false;
if (peqr (&k0->enemy_pos, &p0, +0, +1)) return true;
prel (&p0, &pk, +0, +1);
prel (&k0->enemy_pos, &pke, +0, -1);
if (is_collidable_at_right (&p0, &k0->f))
return false;
}
/* enemy went down */
if (is_traversable (&k0->enemy_pos)) {
prel (&k0->enemy_pos, &pke, +1, +0);
if (is_traversable (&pke) || fg (&pke) == SPIKES_FLOOR)
return false;
int d = (dir == LEFT) ? -1 : +1;
if (peq (&pk, &k0->enemy_pos)) return true;
prel (&k0->enemy_pos, &pke, +0, -1 * d);
} else if (peq (&p0, &k0->enemy_pos)
&& ! (is_anim_seeing (k0, k1, LEFT)
|| is_anim_seeing (k0, k1, RIGHT)))
return false;
first_confg (&pk, &pke, dangerous_cs, &p);
if (is_valid_pos (&p)) return false;
first_confg (&pk, &pke, door_cs, &p);
if (! is_valid_pos (&p)) return true;
else return door_at_pos (&p)->action == OPEN_DOOR
|| ! is_collidable_at_right (&p, &k0->f);
}
void
draw_room_anim_fg_sub (ALLEGRO_BITMAP *bitmap,
enum em em, enum vm vm, struct anim *a)
{
struct pos pm, ptl, ptr, ptl2, ptr2;
struct frame *f = &a->f;
struct coord c; frame2room (f, room_view, &c);
int w = al_get_bitmap_width (f->b);
int h = al_get_bitmap_height (f->b);
survey (_m, posf, f, NULL, &pm, NULL);
survey (_tl, posf, f, NULL, &ptl, NULL);
survey (_tr, posf, f, NULL, &ptr, NULL);
pos2room (&pm, room_view, &pm);
pos2room (&ptl, room_view, &ptl);
pos2room (&ptr, room_view, &ptr);
survey (_tl, pos, f, NULL, &ptl2, NULL);
survey (_tr, pos, f, NULL, &ptr2, NULL);
pos2room (&ptl2, room_view, &ptl2);
pos2room (&ptr2, room_view, &ptr2);
push_clipping_rectangle (bitmap, c.x, c.y, w, h);
/* SWORD */
if (fake (&pm) == CARPET
&& a->f.dir == RIGHT
&& a->xf.b) {
struct coord c2;
int w2 = al_get_bitmap_width (a->xf.b);
int h2 = al_get_bitmap_height (a->xf.b);
xframe_coord (&a->f, &a->xf, &c2);
ignore_clipping_rectangle_intersection = true;
push_clipping_rectangle (bitmap, c2.x, c2.y, w2, h2);
push_drawn_rectangle (bitmap);
draw_confg_right (bitmap, &pm, em, vm);
redraw_drawn_rectangle (pop_drawn_rectangle (), &pm, em, vm);
pop_clipping_rectangle ();
ignore_clipping_rectangle_intersection = false;
}
/* CLIMBING STAIRS */
if (is_kid_stairs (f)) draw_level_door_fg (bitmap, &a->p, f, em, vm);
/* FALLING */
if (is_anim_fall (f)) {
push_clipping_rectangle (bitmap,
PLACE_WIDTH * ptr2.place,
PLACE_HEIGHT * ptr2.floor + 56,
PLACE_WIDTH + 12,
PLACE_HEIGHT - 53);
push_drawn_rectangle (bitmap);
if (! is_strictly_traversable_fake (&ptr2))
draw_confg (bitmap, &ptr2, em, vm);
if (! is_strictly_traversable_fake (&ptr))
draw_confg (bitmap, &ptr, em, vm);
redraw_drawn_rectangle (pop_drawn_rectangle (), &ptr2, em, vm);
pop_clipping_rectangle ();
}
/* VERTICAL JUMP */
if (is_kid_vjump_touching_above (f)) {
push_clipping_rectangle (bitmap,
PLACE_WIDTH * ptl2.place,
PLACE_HEIGHT * ptl2.floor + 56,
2 * PLACE_WIDTH,
PLACE_HEIGHT - 56 + 3);
push_drawn_rectangle (bitmap);
draw_confg (bitmap, &ptl2, em, vm);
draw_confg (bitmap, &ptr, em, vm);
redraw_drawn_rectangle (pop_drawn_rectangle (), &ptl2, em, vm);
pop_clipping_rectangle ();
}
/* HANGING */
if (is_kid_hang (f)) {
struct pos p; get_hanged_pos (&a->hang_pos, f->dir, &p);
struct pos pb; prel (&p, &pb, +0, f->dir == LEFT ? +1 : -1);
pos2room (&p, room_view, &p);
pos2room (&pb, room_view, &pb);
if (f->dir == RIGHT) {
push_clipping_rectangle (bitmap,
PLACE_WIDTH * p.place,
PLACE_HEIGHT * p.floor + 56,
PLACE_WIDTH,
PLACE_HEIGHT - 53);
push_drawn_rectangle (bitmap);
draw_confg (bitmap, &p, em, vm);
redraw_drawn_rectangle (pop_drawn_rectangle (), &p, em, vm);
} else {
push_clipping_rectangle (bitmap,
PLACE_WIDTH * pb.place,
PLACE_HEIGHT * pb.floor + 56,
PLACE_WIDTH,
PLACE_HEIGHT - 53);
push_drawn_rectangle (bitmap);
draw_confg (bitmap, &pb, em, vm);
redraw_drawn_rectangle (pop_drawn_rectangle (), &pb, em, vm);
}
pop_clipping_rectangle ();
}
/* CLIMBING FLOOR */
if (is_kid_climb (f)) {
struct pos p; get_hanged_pos (&a->hang_pos, f->dir, &p);
struct pos pb; prel (&p, &pb, +0, f->dir == LEFT ? +1 : -1);
pos2room (&p, room_view, &p);
pos2room (&pb, room_view, &pb);
if (f->dir == RIGHT) {
int dy, w;
if (f->b == kid_climb_00
|| f->b == kid_climb_01
|| f->b == kid_climb_02
|| f->b == kid_climb_08
|| f->b == kid_climb_09) {
dy = 55;
w = 18;
} else if (f->b == kid_climb_05
|| f->b == kid_climb_06) {
dy = 53;
w = 22;
} else if (f->b == kid_climb_03
|| f->b == kid_climb_07
|| f->b == kid_climb_04) {
dy = 53;
w = 21;
}
push_clipping_rectangle (bitmap,
PLACE_WIDTH * p.place,
PLACE_HEIGHT * p.floor + dy,
w,
PLACE_HEIGHT - dy + 3);
push_drawn_rectangle (bitmap);
draw_confg (bitmap, &p, em, vm);
redraw_drawn_rectangle (pop_drawn_rectangle (), &p, em, vm);
} else {
push_clipping_rectangle (bitmap,
PLACE_WIDTH * pb.place,
PLACE_HEIGHT * pb.floor + 54,
PLACE_WIDTH,
PLACE_HEIGHT - 54 + 3);
push_drawn_rectangle (bitmap);
draw_confg (bitmap, &pb, em, vm);
redraw_drawn_rectangle (pop_drawn_rectangle (), &pb, em, vm);
}
pop_clipping_rectangle ();
}
pop_clipping_rectangle ();
draw_room_frame_fg (bitmap, em, vm, f);
/* xframe */
if (a->xf.b) {
struct frame xf; xframe_frame (&a->f, &a->xf, &xf);
draw_room_frame_fg (bitmap, em, vm, &xf);
}
/* splash */
if (a->splash) {
struct frame sf; splash_frame (&a->f, &sf);
draw_room_frame_fg (bitmap, em, vm, &sf);
}
}