void
draw_animated_foreground (ALLEGRO_BITMAP *bitmap, int room)
{
int room_view_bkp = room_view;
room_view = room;
struct pos p;
p.room = room_view;
for (p.floor = FLOORS; p.floor >= -1; p.floor--)
for (p.place = -1; p.place < PLACES; p.place++) {
if (con (&p)->fg != MIRROR) continue;
update_mirror_bitmap (bitmap, &p);
draw_mirror (bitmap, &p, em, vm);
}
/* loose_floor_fall_debug (); */
for (p.floor = FLOORS; p.floor >= -1; p.floor--)
for (p.place = -1; p.place < PLACES; p.place++) {
draw_falling_loose_floor (bitmap, &p, em, vm);
}
draw_anims (bitmap, em, vm);
for (p.floor = FLOORS; p.floor >= -1; p.floor--)
for (p.place = -1; p.place < PLACES; p.place++) {
draw_potion (bitmap, &p, em, vm);
if (is_sword (&p)) draw_sword (bitmap, &p, vm);
}
room_view = room_view_bkp;
}
void
draw_confg_left (ALLEGRO_BITMAP *bitmap, struct pos *p,
enum em em, enum vm vm)
{
enum carpet_design d;
switch (fake (p)) {
case NO_FLOOR: return;
case FLOOR: draw_floor_left (bitmap, p, em, vm); break;
case BROKEN_FLOOR: draw_broken_floor_left (bitmap, p, em, vm); break;
case SKELETON_FLOOR: draw_skeleton_floor_left (bitmap, p, em, vm); break;
case LOOSE_FLOOR: draw_loose_floor_left (bitmap, p, em, vm); break;
case SPIKES_FLOOR: draw_spikes_floor_left (bitmap, p, em, vm); break;
case OPENER_FLOOR: draw_opener_floor_left (bitmap, p, em, vm); break;
case CLOSER_FLOOR: draw_closer_floor_left (bitmap, p, em, vm); break;
case STUCK_FLOOR: draw_pressed_closer_floor_left (bitmap, p, em, vm); break;
case HIDDEN_FLOOR: return;
case PILLAR: draw_pillar_left (bitmap, p, em, vm); break;
case BIG_PILLAR_BOTTOM:
draw_big_pillar_bottom_left (bitmap, p, em, vm); break;
case BIG_PILLAR_TOP:
draw_big_pillar_top_left (bitmap, p, em, vm); break;
case WALL:
if (con_caching) draw_wall_left (bitmap, p, em, vm);
else draw_wall_left_cache (bitmap, p);
break;
case DOOR: draw_door_left (bitmap, p, em, vm); break;
case LEVEL_DOOR: draw_level_door_left (bitmap, p, em, vm); break;
case CHOPPER: draw_chopper_left (bitmap, p, em, vm); break;
case ARCH_BOTTOM:
draw_floor_left (bitmap, p, em, vm);
draw_arch_bottom (bitmap, p, em, vm); break;
case ARCH_TOP_MID: draw_arch_top_mid (bitmap, p, em, vm); break;
case ARCH_TOP_SMALL: draw_arch_top_small (bitmap, p, em, vm); break;
case ARCH_TOP_LEFT: draw_arch_top_left (bitmap, p, em, vm); break;
case ARCH_TOP_RIGHT: draw_arch_top_right (bitmap, p, em, vm); break;
case CARPET:
draw_floor_left (bitmap, p, em, vm);
draw_door_pole (bitmap, p, em, vm);
break;
case TCARPET:
d = ext (p);
if (d == ARCH_CARPET_RIGHT_00 || d == ARCH_CARPET_RIGHT_01)
draw_arch_top_right_end (bitmap, p, em, vm);
else draw_door_pole (bitmap, p, em, vm);
break;
case MIRROR:
draw_floor_left (bitmap, p, em, vm);
draw_mirror (bitmap, p, em, vm);
break;
default: assert (false); break;
}
}
void draw_scene(GLdouble secs, int passes, GLenum cullFace,
GLuint stencilVal, GLuint mirror)
{
GLenum newCullFace;
int passesPerMirror, passesPerMirrorRem;
unsigned int curMirror, drawMirrors;
int i;
/* one pass to draw the real scene */
passes--;
/* only draw in my designated locations */
glStencilFunc(GL_EQUAL, stencilVal, 0xffffffff);
/* draw things which may obscure the mirrors first */
draw_sphere(secs);
draw_cone();
/* now draw the appropriate number of mirror reflections. for
* best results, we perform a depth-first traversal by allocating
* a number of passes for each of the mirrors. */
if (mirror != 0xffffffff) {
passesPerMirror = passes / (nMirrors - 1);
passesPerMirrorRem = passes % (nMirrors - 1);
if (passes > nMirrors - 1) drawMirrors = nMirrors - 1;
else drawMirrors = passes;
} else {
/* mirror == -1 means that this is the initial scene (there was no
* mirror) */
passesPerMirror = passes / nMirrors;
passesPerMirrorRem = passes % nMirrors;
if (passes > nMirrors) drawMirrors = nMirrors;
else drawMirrors = passes;
}
for (i = 0; drawMirrors > 0; i++) {
curMirror = i % nMirrors;
if (curMirror == mirror) continue;
drawMirrors--;
/* draw mirror into stencil buffer but not color or depth buffers */
glColorMask(0, 0, 0, 0);
glDepthMask(0);
glStencilOp(GL_KEEP, GL_KEEP, GL_INCR);
draw_mirror(&mirrors[curMirror]);
glColorMask(1, 1, 1, 1);
glDepthMask(1);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
/* draw reflected scene */
newCullFace = reflect_through_mirror(&mirrors[curMirror], cullFace);
if (passesPerMirrorRem) {
draw_scene(secs, passesPerMirror + 1, newCullFace, stencilVal + 1,
curMirror);
passesPerMirrorRem--;
} else {
draw_scene(secs, passesPerMirror, newCullFace, stencilVal + 1,
curMirror);
}
undo_reflect_through_mirror(&mirrors[curMirror], cullFace);
/* back to our stencil value */
glStencilFunc(GL_EQUAL, stencilVal, 0xffffffff);
}
draw_room();
}