bddvar_xy_map *t;
} bimap;
+typedef struct {
+ BDD *rell;
+ BDD *relu;
+ BDD *relr;
+ BDD *reld;
+} rels;
+
xy_bddvar_map *getxy(int x, int y, xy_bddvar_map *map)
{
xy_bddvar_map k, *r = NULL;
return r;
}
+/*
xy_bddvar_map *create_xy_bddvar_map(sokoban_screen *screen)
{
int varcount = 0;
}
return bddxy;
}
+*/
bimap *create_bimap_helper(sokoban_screen *screen)
{
return bm;
}
+int check_xy_exists(int x, int y, bimap *bm)
+{
+ int res = 0;
+ if (getxy(x, y, bm->f) != NULL) res = 1;
+ return res;
+}
+
+int check_space(int x, int y, direction d, int delta, bimap *bm)
+{
+ switch(d){
+ case LEFT: x = x - delta; break;
+ case UP: y = y - delta; break;
+ case RIGHT: x = x + delta; break;
+ case DOWN: y = y + delta; break;
+ }
+ return check_xy_exists(x, y, bm);
+}
+
/*
* Each coordinate has three related boolean variables. The combination of those boolean variables
* defines tiles:
* directly in transition relations.
*/
-BDD encode_screen(sokoban_screen *screen)
+state *encode_screen(sokoban_screen *screen)
{
- BDD state = sylvan_false;
+ LACE_ME;
+
+ BDDVAR vars[HASH_COUNT(screen) * 3];
+ for (uint8_t i = 0; i < HASH_COUNT(screen) * 3; i++){
+ vars[i] = i * 2;
+ }
+
+ uint8_t st_enc[HASH_COUNT(screen) * 3];
+
+ BDDSET varset = sylvan_set_fromarray(vars, HASH_COUNT(screen) * 3);
+ BDD s;
+ state *fullState = NULL;
+ fullState = (state *)malloc(sizeof(state));
+ fullState->vars.varset = varset;
+ fullState->vars.size = HASH_COUNT(screen) * 3;
int tile_index = 0;
sokoban_screen *r;
- LACE_ME;
for(r=screen; r != NULL; r = (sokoban_screen *)(r->hh.next)){
switch(r->tile){
- case FREE:
- if (state == sylvan_false){
- state = sylvan_not(sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
+ case FREE: //001
+ st_enc[tile_index] = 0;
+ tile_index++;
+ st_enc[tile_index] = 0;
+ tile_index++;
+ st_enc[tile_index] = 1;
+ tile_index++;
+ break;
+ case WALL: //000
+ st_enc[tile_index] = 0;
+ tile_index++;
+ st_enc[tile_index] = 0;
+ tile_index++;
+ st_enc[tile_index] = 0;
+ tile_index++;
+ break;
+ case BOX: //010
+ st_enc[tile_index] = 0;
+ tile_index++;
+ st_enc[tile_index] = 1;
+ tile_index++;
+ st_enc[tile_index] = 0;
+ tile_index++;
+ break;
+ case TARGET: //011
+ st_enc[tile_index] = 0;
+ tile_index++;
+ st_enc[tile_index] = 1;
+ tile_index++;
+ st_enc[tile_index] = 1;
+ tile_index++;
+ break;
+ case AGENT: //101
+ st_enc[tile_index] = 1;
+ tile_index++;
+ st_enc[tile_index] = 0;
+ tile_index++;
+ st_enc[tile_index] = 1;
+ tile_index++;
+ break;
+ case TARGAGENT: //110
+ st_enc[tile_index] = 1;
+ tile_index++;
+ st_enc[tile_index] = 1;
+ tile_index++;
+ st_enc[tile_index] = 0;
+ tile_index++;
+ break;
+ case TARGBOX: //100
+ st_enc[tile_index] = 1;
+ tile_index++;
+ st_enc[tile_index] = 0;
+ tile_index++;
+ st_enc[tile_index] = 0;
+ tile_index++;
+ break;
+ }
+ }
+ s = sylvan_cube(varset, st_enc);
+ fullState->bdd = s;
+ printf("Initial state encoded\n");
+ return fullState;
+}
+
+int
+test_relprod()
+{
+ LACE_ME;
+
+ BDDVAR vars[] = {0,2,4};
+ BDDVAR all_vars[] = {4,5};
+
+ BDDSET vars_set = sylvan_set_fromarray(vars, 3);
+ BDDSET all_vars_set = sylvan_set_fromarray(all_vars, 2);
+
+ BDD s, t, next, prev;
+ BDD zeroes, ones;
+
+ // transition relation: 000 --> 111 and !000 --> 000
+ t = sylvan_false;
+ //t = sylvan_union_cube(t, all_vars_set, ((uint8_t[]){0,1,0,1,0,1}));
+ //t = sylvan_union_cube(t, all_vars_set, ((uint8_t[]){1,0,2,0,2,0}));
+ //t = sylvan_union_cube(t, all_vars_set, ((uint8_t[]){2,0,1,0,2,0}));
+ t = sylvan_union_cube(t, all_vars_set, ((uint8_t[]){1,0}));
+
+ s = sylvan_cube(vars_set, (uint8_t[]){0,0,1});
+ zeroes = sylvan_cube(vars_set, (uint8_t[]){0,0,0});
+ ones = sylvan_cube(vars_set, (uint8_t[]){0,0,1});
+
+ next = sylvan_relnext(s, t, all_vars_set);
+ prev = sylvan_relprev(t, next, all_vars_set);
+ if (next == zeroes) printf("Pass 1\n");
+ if (prev == ones || prev == zeroes) printf("Pass 2\n");
+
+ return 0;
+}
+
+BDD encode_rel(sokoban_screen *screen)
+{
+ int tile_count = 0;
+ BDD t = sylvan_false;
+ BDDVAR *relvars;
+ uint8_t *rel_enc;
+
+ bimap *bm = create_bimap_helper(screen);
+ int x = 0;
+ int y = 0;
+ bddvar_xy_map *bddxy = NULL;
+ tmp_scr *screen = NULL;
+ tmp_scr_d *screen = NULL;
+ tmp_scr_g *screen = NULL;
+
+ //left relation
+ for (unsigned int i = 0; i < HASH_COUNT(screen); i++){
+ printf("i:%d\n", i);
+ bddxy = getbdd(i*3, bm->t);
+ x = bddxy->value.x;
+ y = bddxy->value.y;
+ if (check_space(x, y, LEFT, 1, bm) == 0){
+ tmp_scr = get_coord(x, y, screen);
+ if (tmp_scr->tile == AGENT){
+
}
- else {
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
+ if (tmp_scr->tile == TARGAGENT){
+
}
- break;
- case WALL:
- if (state == sylvan_false){
- state = sylvan_not(sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
+ }
+ else if (check_space(x, y, LEFT, 1, bm) == 1 && check_space(x, y, LEFT, 2, bm) == 0){
+ tmp_scr = get_coord(x, y, screen);
+ tmp_scr_d = get_coord(x - 1, y, screen);
+ if (tmp_scr->tile == AGENT && tmp_scr_d->tile == FREE){
+ //can move
}
- else {
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
+ if (tmp_scr->tile == AGENT && tmp_scr_d->tile == TARGET){
+ //can move
}
- break;
- case BOX:
- if (state == sylvan_false){
- state = sylvan_not(sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
+ if (tmp_scr->tile == TARGAGENT && tmp_scr_d->tile == FREE){
+ //can move
}
- else {
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
+ if (tmp_scr->tile == TARGAGENT && tmp_scr_d->tile == TARGET){
+ //can move
}
- break;
- case TARGET:
- if (state == sylvan_false){
- state = sylvan_not(sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
+ if (tmp_scr->tile == AGENT && (tmp_scr_d->tile == BOX || tmp_scr_d->tile == TARGBOX)){
+ //can't move
}
- else {
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
+ if (tmp_scr->tile == TARGAGENT && (tmp_scr_d->tile == BOX || tmp_scr_d->tile == TARGBOX)){
+ //can't move
}
- break;
- case AGENT:
- if (state == sylvan_false){
- state = sylvan_ithvar(tile_index);
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
+ }
+ else if (check_space(x, y, LEFT, 1, bm) == 1 && check_space(x, y, LEFT, 2, bm) == 1){
+ tmp_scr = get_coord(x, y, screen);
+ tmp_scr_d = get_coord(x - 1, y, screen);
+ tmp_scr_g = get_coord(x - 2, y, screen);
+ if (tmp_scr->tile == AGENT && tmp_scr_d->tile == FREE){
+ //can move
}
- else {
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
+ if (tmp_scr->tile == AGENT && tmp_scr_d->tile == TARGET){
+ //can move
}
- break;
- case TARGAGENT:
- if (state == sylvan_false){
- state = sylvan_ithvar(tile_index);
- tile_index++;
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
+ if (tmp_scr->tile == TARGAGENT && tmp_scr_d->tile == FREE){
+ //can move
}
- else {
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
+ if (tmp_scr->tile == TARGAGENT && tmp_scr_d->tile == TARGET){
+ //can move
}
- break;
- case TARGBOX:
- if (state == sylvan_false){
- state = sylvan_ithvar(tile_index);
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
+ if (tmp_scr->tile == AGENT && tmp_scr_d-> tile == BOX && (tmp_scr_g->tile == BOX || tmp_scr_g == TARGBOX)){
+ //can't move
}
- else {
- state = sylvan_and(state, sylvan_ithvar(tile_index));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
- state = sylvan_and(state, sylvan_not(sylvan_ithvar(tile_index)));
- tile_index++;
+ if (tmp_scr->tile == TARGAGENT && tmp_scr_d-> tile == BOX && (tmp_scr_g->tile == BOX || tmp_scr_g == TARGBOX)){
+ //can't move
+ }
+ if (tmp_scr->tile == AGENT && tmp_scr_d->tile == BOX && tmp_scr_g->tile == FREE){
+ //can move
+ }
+ if (tmp_scr->tile == AGENT && tmp_scr_d->tile == TARGBOX && tmp_scr_g->tile == FREE){
+ //can move
+ }
+ if (tmp_scr->tile == AGENT && tmp_scr_d->tile == BOX && tmp_scr_g->tile == TARGET){
+ //can move
+ }
+ if (tmp_scr->tile == AGENT && tmp_scr_d->tile == TARGBOX && tmp_scr_g->tile == TARGET){
+ //can move
+ }
+ if (tmp_scr->tile == TARGAGENT && tmp_scr_d->tile == BOX && tmp_scr_g->tile == FREE){
+ //can move
+ }
+ if (tmp_scr->tile == TARGAGENT && tmp_scr_d->tile == TARGBOX && tmp_scr_g->tile == FREE){
+ //can move
+ }
+ if (tmp_scr->tile == TARGAGENT && tmp_scr_d->tile == BOX && tmp_scr_g->tile == TARGET){
+ //can move
+ }
+ if (tmp_scr->tile == TARGAGENT && tmp_scr_d->tile == TARGBOX && tmp_scr_g->tile == TARGET){
+ //can move
}
- break;
}
+ printf("x:%d y:%d\n", x, y);
}
- /*
- xy_bddvar_map *map = NULL;
- map = create_xy_bddvar_map(screen);
- xy_bddvar_map *m = getxy(1, 1, map);
- bddvar_xy_map *map2 = NULL;
- map2 = create_bddvar_xy_map(screen);
- bddvar_xy_map *m2 = getbdd(2, map2);
- printf("Test1: %d %d\n", m->value.var[0], m->value.var[1]);
- printf("Test2: %d %d\n", m2->value.x, m2->value.y);
- */
- /*
- bimap *bm = NULL;
- bm = create_bimap_helper(screen);
- xy_bddvar_map *m = getxy(1, 1, bm->f);
- bddvar_xy_map *m2 = getbdd(2, bm->t);
- printf("Test1: %d %d\n", m->value.var[0], m->value.var[1]);
- printf("Test2: %d %d\n", m2->value.x, m2->value.y);
- printf("%d tiles were encoded\n", tile_index);
- if (bm != NULL) printf ("WORKS!\n");
- */
- return state;
-}
-BDD encode_rel(sokoban_screen *screen)
-{
- int num_tiles;
- num_tiles = HASH_COUNT(screen);
- printf("Number of tiles: %d\n", num_tiles);
- return sylvan_true;
-}
+ //up relation
-void test()
-{
+ //right relation
- printf("Test!\n");
- BDD a = sylvan_true;
- BDD b = sylvan_not(a);
- if (b == sylvan_false){
- printf("BDD works!\n");
- } else {
- printf("BDD does not work!\n");
- }
- LACE_ME;
- BDD c = sylvan_ithvar(1);
- if (sylvan_high(c) == sylvan_true && sylvan_low(c) == sylvan_false) printf("VAR works 1\n");
- if (sylvan_var(c) == 1) printf("Var works 2\n");
+ //down relation
+
+ return sylvan_true;
}