#define COUNT(x) ( (((x) & 0x08) >> 3) + (((x) & 0x04) >> 2) + \
(((x) & 0x02) >> 1) + ((x) & 0x01) )
-#define TILE_SIZE 48
+#define PREFERRED_TILE_SIZE 48
+#define TILE_SIZE (ds->tilesize)
#define BORDER TILE_SIZE
#define TILE_BORDER 1
#define WINDOW_OFFSET 0
int movetarget;
};
-struct game_aux_info {
- int width, height;
- unsigned char *tiles;
-};
-
struct game_state {
int width, height, cx, cy, wrapping, completed;
int used_solve, just_used_solve;
if (a->direction > b->direction)
return +1;
return 0;
-};
+}
static struct xyd *new_xyd(int x, int y, int direction)
{
return ret;
}
+static const struct { int x, y, wrap, bprob; const char* desc; }
+netslide_presets[] = {
+ {3, 3, FALSE, 1.0, " easy"},
+ {3, 3, FALSE, 0.0, " medium"},
+ {3, 3, TRUE, 0.0, " hard"},
+ {4, 4, FALSE, 1.0, " easy"},
+ {4, 4, FALSE, 0.0, " medium"},
+ {4, 4, TRUE, 0.0, " hard"},
+ {5, 5, FALSE, 1.0, " easy"},
+ {5, 5, FALSE, 0.0, " medium"},
+ {5, 5, TRUE, 0.0, " hard"},
+};
+
static int game_fetch_preset(int i, char **name, game_params **params)
{
game_params *ret;
char str[80];
- static const struct { int x, y, wrap, bprob; const char* desc; } values[] = {
- {3, 3, FALSE, 1.0, " easy"},
- {3, 3, FALSE, 0.0, " medium"},
- {3, 3, TRUE, 0.0, " hard"},
- {4, 4, FALSE, 1.0, " easy"},
- {4, 4, FALSE, 0.0, " medium"},
- {4, 4, TRUE, 0.0, " hard"},
- {5, 5, FALSE, 1.0, " easy"},
- {5, 5, FALSE, 0.0, " medium"},
- {5, 5, TRUE, 0.0, " hard"},
- };
-
- if (i < 0 || i >= lenof(values))
+
+ if (i < 0 || i >= lenof(netslide_presets))
return FALSE;
ret = snew(game_params);
- ret->width = values[i].x;
- ret->height = values[i].y;
- ret->wrapping = values[i].wrap;
- ret->barrier_probability = values[i].bprob;
+ ret->width = netslide_presets[i].x;
+ ret->height = netslide_presets[i].y;
+ ret->wrapping = netslide_presets[i].wrap;
+ ret->barrier_probability = netslide_presets[i].bprob;
ret->movetarget = 0;
- sprintf(str, "%dx%d%s", ret->width, ret->height,
- values[i].desc);
+ sprintf(str, "%dx%d%s", ret->width, ret->height, netslide_presets[i].desc);
*name = dupstr(str);
*params = ret;
ret->movetarget = 0;
ret->width = atoi(p);
- while (*p && isdigit(*p)) p++;
+ while (*p && isdigit((unsigned char)*p)) p++;
if (*p == 'x') {
p++;
ret->height = atoi(p);
- while (*p && isdigit(*p)) p++;
+ while (*p && isdigit((unsigned char)*p)) p++;
if ( (ret->wrapping = (*p == 'w')) != 0 )
p++;
if (*p == 'b') {
ret->barrier_probability = atof(++p);
- while (*p && (isdigit(*p) || *p == '.')) p++;
+ while (*p && (isdigit((unsigned char)*p) || *p == '.')) p++;
}
if (*p == 'm') {
ret->movetarget = atoi(++p);
return ret;
}
-static char *validate_params(game_params *params)
+static char *validate_params(game_params *params, int full)
{
- if (params->width <= 1 && params->height <= 1)
+ if (params->width <= 1 || params->height <= 1)
return "Width and height must both be greater than one";
- if (params->width <= 1)
- return "Width must be greater than one";
- if (params->height <= 1)
- return "Height must be greater than one";
if (params->barrier_probability < 0)
return "Barrier probability may not be negative";
if (params->barrier_probability > 1)
*/
static char *new_game_desc(game_params *params, random_state *rs,
- game_aux_info **aux, int interactive)
+ char **aux, int interactive)
{
tree234 *possibilities, *barriertree;
int w, h, x, y, cx, cy, nbarriers;
OFFSET(x2, y2, x1, y1, d1, params);
d2 = F(d1);
-#ifdef DEBUG
+#ifdef GENERATION_DIAGNOSTICS
printf("picked (%d,%d,%c) <-> (%d,%d,%c)\n",
x1, y1, "0RU3L567D9abcdef"[d1], x2, y2, "0RU3L567D9abcdef"[d2]);
#endif
xydp = find234(possibilities, &xyd1, NULL);
if (xydp) {
-#ifdef DEBUG
+#ifdef GENERATION_DIAGNOSTICS
printf("T-piece; removing (%d,%d,%c)\n",
xydp->x, xydp->y, "0RU3L567D9abcdef"[xydp->direction]);
#endif
xydp = find234(possibilities, &xyd1, NULL);
if (xydp) {
-#ifdef DEBUG
+#ifdef GENERATION_DIAGNOSTICS
printf("Loop avoidance; removing (%d,%d,%c)\n",
xydp->x, xydp->y, "0RU3L567D9abcdef"[xydp->direction]);
#endif
if (index(params, tiles, x3, y3))
continue; /* this would create a loop */
-#ifdef DEBUG
+#ifdef GENERATION_DIAGNOSTICS
printf("New frontier; adding (%d,%d,%c)\n",
x2, y2, "0RU3L567D9abcdef"[d]);
#endif
}
/*
- * Save the unshuffled grid. We do this using a separate
- * reference-counted structure since it's a large chunk of
- * memory which we don't want to have to replicate in every
- * game state while playing.
+ * Save the unshuffled grid in aux.
*/
{
- game_aux_info *solution;
+ char *solution;
+ int i;
- solution = snew(game_aux_info);
- solution->width = w;
- solution->height = h;
- solution->tiles = snewn(w * h, unsigned char);
- memcpy(solution->tiles, tiles, w * h);
+ /*
+ * String format is exactly the same as a solve move, so we
+ * can just dupstr this in solve_game().
+ */
+
+ solution = snewn(w * h + 2, char);
+ solution[0] = 'S';
+ for (i = 0; i < w * h; i++)
+ solution[i+1] = "0123456789abcdef"[tiles[i] & 0xF];
+ solution[w*h+1] = '\0';
*aux = solution;
}
if (col == prevrowcol) {
if (dir == 2-prevdir)
continue; /* undoes last move */
- else if ((nrepeats+1)*2 > h)
+ else if (dir == prevdir && (nrepeats+1)*2 > h)
continue; /* makes fewer moves */
}
slide_col_int(w, h, tiles, 1 - dir, col);
if (row == prevrowcol) {
if (dir == 4-prevdir)
continue; /* undoes last move */
- else if ((nrepeats+1)*2 > w)
+ else if (dir == prevdir && (nrepeats+1)*2 > w)
continue; /* makes fewer moves */
}
slide_row_int(w, h, tiles, 2 - dir, row);
return desc;
}
-static void game_free_aux_info(game_aux_info *aux)
-{
- sfree(aux->tiles);
- sfree(aux);
-}
-
static char *validate_desc(game_params *params, char *desc)
{
int w = params->width, h = params->height;
sfree(state);
}
-static game_state *solve_game(game_state *state, game_aux_info *aux,
- char **error)
+static char *solve_game(game_state *state, game_state *currstate,
+ char *aux, char **error)
{
- game_state *ret;
-
if (!aux) {
*error = "Solution not known for this puzzle";
return NULL;
}
- assert(aux->width == state->width);
- assert(aux->height == state->height);
- ret = dup_game(state);
- memcpy(ret->tiles, aux->tiles, ret->width * ret->height);
- ret->used_solve = ret->just_used_solve = TRUE;
- ret->completed = ret->move_count = 1;
-
- return ret;
+ return dupstr(aux);
}
static char *game_text_format(game_state *state)
sfree(ui);
}
+static char *encode_ui(game_ui *ui)
+{
+ return NULL;
+}
+
+static void decode_ui(game_ui *ui, char *encoding)
+{
+}
+
/* ----------------------------------------------------------------------
* Process a move.
*/
slide_col_int(state->width, state->height, state->tiles, dir, col);
}
-static game_state *make_move(game_state *state, game_ui *ui,
- game_drawstate *ds, int x, int y, int button)
+static void game_changed_state(game_ui *ui, game_state *oldstate,
+ game_state *newstate)
+{
+}
+
+struct game_drawstate {
+ int started;
+ int width, height;
+ int tilesize;
+ unsigned char *visible;
+};
+
+static char *interpret_move(game_state *state, game_ui *ui,
+ game_drawstate *ds, int x, int y, int button)
{
int cx, cy;
int n, dx, dy;
- game_state *ret;
+ char buf[80];
button &= ~MOD_MASK;
dy = -dy;
}
- ret = dup_game(state);
+ if (dx == 0)
+ sprintf(buf, "C%d,%d", cx, dy);
+ else
+ sprintf(buf, "R%d,%d", cy, dx);
+ return dupstr(buf);
+}
+
+static game_state *execute_move(game_state *from, char *move)
+{
+ game_state *ret;
+ int c, d, col;
+
+ if ((move[0] == 'C' || move[0] == 'R') &&
+ sscanf(move+1, "%d,%d", &c, &d) == 2 &&
+ c >= 0 && c < (move[0] == 'C' ? from->width : from->height)) {
+ col = (move[0] == 'C');
+ } else if (move[0] == 'S' &&
+ strlen(move) == from->width * from->height + 1) {
+ int i;
+ ret = dup_game(from);
+ ret->used_solve = ret->just_used_solve = TRUE;
+ ret->completed = ret->move_count = 1;
+
+ for (i = 0; i < from->width * from->height; i++) {
+ c = move[i+1];
+ if (c >= '0' && c <= '9')
+ c -= '0';
+ else if (c >= 'A' && c <= 'F')
+ c -= 'A' - 10;
+ else if (c >= 'a' && c <= 'f')
+ c -= 'a' - 10;
+ else {
+ free_game(ret);
+ return NULL;
+ }
+ ret->tiles[i] = c;
+ }
+ return ret;
+ } else
+ return NULL; /* can't parse move string */
+
+ ret = dup_game(from);
ret->just_used_solve = FALSE;
- if (dx == 0) slide_col(ret, dy, cx);
- else slide_row(ret, dx, cy);
+ if (col)
+ slide_col(ret, d, c);
+ else
+ slide_row(ret, d, c);
ret->move_count++;
- ret->last_move_row = dx ? cy : -1;
- ret->last_move_col = dx ? -1 : cx;
- ret->last_move_dir = dx + dy;
+ ret->last_move_row = col ? -1 : c;
+ ret->last_move_col = col ? c : -1;
+ ret->last_move_dir = d;
/*
* See if the game has been completed.
* Routines for drawing the game position on the screen.
*/
-struct game_drawstate {
- int started;
- int width, height;
- unsigned char *visible;
-};
-
static game_drawstate *game_new_drawstate(game_state *state)
{
game_drawstate *ds = snew(game_drawstate);
ds->width = state->width;
ds->height = state->height;
ds->visible = snewn(state->width * state->height, unsigned char);
+ ds->tilesize = 0; /* not decided yet */
memset(ds->visible, 0xFF, state->width * state->height);
return ds;
sfree(ds);
}
-static void game_size(game_params *params, int *x, int *y)
+static void game_compute_size(game_params *params, int tilesize,
+ int *x, int *y)
{
+ /* Ick: fake up `ds->tilesize' for macro expansion purposes */
+ struct { int tilesize; } ads, *ds = &ads;
+ ads.tilesize = tilesize;
+
*x = BORDER * 2 + WINDOW_OFFSET * 2 + TILE_SIZE * params->width + TILE_BORDER;
*y = BORDER * 2 + WINDOW_OFFSET * 2 + TILE_SIZE * params->height + TILE_BORDER;
}
+static void game_set_size(game_drawstate *ds, game_params *params,
+ int tilesize)
+{
+ ds->tilesize = tilesize;
+}
+
static float *game_colours(frontend *fe, game_state *state, int *ncolours)
{
float *ret;
draw_rect(fe, mx, my, dx, dy, colour);
}
-static void draw_barrier_corner(frontend *fe, int x, int y, int dir, int phase)
+static void draw_barrier_corner(frontend *fe, game_drawstate *ds,
+ int x, int y, int dir, int phase)
{
int bx = BORDER + WINDOW_OFFSET + TILE_SIZE * x;
int by = BORDER + WINDOW_OFFSET + TILE_SIZE * y;
}
}
-static void draw_barrier(frontend *fe, int x, int y, int dir, int phase)
+static void draw_barrier(frontend *fe, game_drawstate *ds,
+ int x, int y, int dir, int phase)
{
int bx = BORDER + WINDOW_OFFSET + TILE_SIZE * x;
int by = BORDER + WINDOW_OFFSET + TILE_SIZE * y;
}
}
-static void draw_tile(frontend *fe, game_state *state, int x, int y, int tile,
- float xshift, float yshift)
+static void draw_tile(frontend *fe, game_drawstate *ds, game_state *state,
+ int x, int y, int tile, float xshift, float yshift)
{
int bx = BORDER + WINDOW_OFFSET + TILE_SIZE * x + (xshift * TILE_SIZE);
int by = BORDER + WINDOW_OFFSET + TILE_SIZE * y + (yshift * TILE_SIZE);
points[i+1] = by+(int)(cy+ey);
}
- draw_polygon(fe, points, 4, TRUE, col);
- draw_polygon(fe, points, 4, FALSE, COL_WIRE);
+ draw_polygon(fe, points, 4, col, COL_WIRE);
}
/*
draw_update(fe, bx, by, TILE_SIZE+TILE_BORDER, TILE_SIZE+TILE_BORDER);
}
-static void draw_tile_barriers(frontend *fe, game_state *state, int x, int y)
+static void draw_tile_barriers(frontend *fe, game_drawstate *ds,
+ game_state *state, int x, int y)
{
int phase;
int dir;
for (phase = 0; phase < 2; phase++) {
for (dir = 1; dir < 0x10; dir <<= 1)
if (barrier(state, x, y) & (dir << 4))
- draw_barrier_corner(fe, x, y, dir << 4, phase);
+ draw_barrier_corner(fe, ds, x, y, dir << 4, phase);
for (dir = 1; dir < 0x10; dir <<= 1)
if (barrier(state, x, y) & dir)
- draw_barrier(fe, x, y, dir, phase);
+ draw_barrier(fe, ds, x, y, dir, phase);
}
draw_update(fe, bx, by, TILE_SIZE+TILE_BORDER, TILE_SIZE+TILE_BORDER);
}
-static void draw_arrow(frontend *fe, int x, int y, int xdx, int xdy)
+static void draw_arrow(frontend *fe, game_drawstate *ds,
+ int x, int y, int xdx, int xdy)
{
int coords[14];
int ydy = -xdx, ydx = xdy;
POINT(5, 3 * TILE_SIZE / 8, TILE_SIZE / 2); /* left concave */
POINT(6, TILE_SIZE / 4, TILE_SIZE / 2); /* left corner */
- draw_polygon(fe, coords, 7, TRUE, COL_LOWLIGHT);
- draw_polygon(fe, coords, 7, FALSE, COL_TEXT);
+ draw_polygon(fe, coords, 7, COL_LOWLIGHT, COL_TEXT);
}
static void game_redraw(frontend *fe, game_drawstate *ds, game_state *oldstate,
for (x = 0; x < ds->width; x++) {
if (barrier(state, x, 0) & UL)
- draw_barrier_corner(fe, x, -1, LD, phase);
+ draw_barrier_corner(fe, ds, x, -1, LD, phase);
if (barrier(state, x, 0) & RU)
- draw_barrier_corner(fe, x, -1, DR, phase);
+ draw_barrier_corner(fe, ds, x, -1, DR, phase);
if (barrier(state, x, 0) & U)
- draw_barrier(fe, x, -1, D, phase);
+ draw_barrier(fe, ds, x, -1, D, phase);
if (barrier(state, x, ds->height-1) & DR)
- draw_barrier_corner(fe, x, ds->height, RU, phase);
+ draw_barrier_corner(fe, ds, x, ds->height, RU, phase);
if (barrier(state, x, ds->height-1) & LD)
- draw_barrier_corner(fe, x, ds->height, UL, phase);
+ draw_barrier_corner(fe, ds, x, ds->height, UL, phase);
if (barrier(state, x, ds->height-1) & D)
- draw_barrier(fe, x, ds->height, U, phase);
+ draw_barrier(fe, ds, x, ds->height, U, phase);
}
for (y = 0; y < ds->height; y++) {
if (barrier(state, 0, y) & UL)
- draw_barrier_corner(fe, -1, y, RU, phase);
+ draw_barrier_corner(fe, ds, -1, y, RU, phase);
if (barrier(state, 0, y) & LD)
- draw_barrier_corner(fe, -1, y, DR, phase);
+ draw_barrier_corner(fe, ds, -1, y, DR, phase);
if (barrier(state, 0, y) & L)
- draw_barrier(fe, -1, y, R, phase);
+ draw_barrier(fe, ds, -1, y, R, phase);
if (barrier(state, ds->width-1, y) & RU)
- draw_barrier_corner(fe, ds->width, y, UL, phase);
+ draw_barrier_corner(fe, ds, ds->width, y, UL, phase);
if (barrier(state, ds->width-1, y) & DR)
- draw_barrier_corner(fe, ds->width, y, LD, phase);
+ draw_barrier_corner(fe, ds, ds->width, y, LD, phase);
if (barrier(state, ds->width-1, y) & R)
- draw_barrier(fe, ds->width, y, L, phase);
+ draw_barrier(fe, ds, ds->width, y, L, phase);
}
}
*/
for (x = 0; x < ds->width; x++) {
if (x == state->cx) continue;
- draw_arrow(fe, x, 0, +1, 0);
- draw_arrow(fe, x+1, ds->height, -1, 0);
+ draw_arrow(fe, ds, x, 0, +1, 0);
+ draw_arrow(fe, ds, x+1, ds->height, -1, 0);
}
for (y = 0; y < ds->height; y++) {
if (y == state->cy) continue;
- draw_arrow(fe, ds->width, y, 0, +1);
- draw_arrow(fe, 0, y+1, 0, -1);
+ draw_arrow(fe, ds, ds->width, y, 0, +1);
+ draw_arrow(fe, ds, 0, y+1, 0, -1);
}
}
float xs = (y == state->last_move_row ? xshift : 0.0);
float ys = (x == state->last_move_col ? yshift : 0.0);
- draw_tile(fe, state, x, y, c, xs, ys);
+ draw_tile(fe, ds, state, x, y, c, xs, ys);
if (xs < 0 && x == 0)
- draw_tile(fe, state, state->width, y, c, xs, ys);
+ draw_tile(fe, ds, state, state->width, y, c, xs, ys);
else if (xs > 0 && x == state->width - 1)
- draw_tile(fe, state, -1, y, c, xs, ys);
+ draw_tile(fe, ds, state, -1, y, c, xs, ys);
else if (ys < 0 && y == 0)
- draw_tile(fe, state, x, state->height, c, xs, ys);
+ draw_tile(fe, ds, state, x, state->height, c, xs, ys);
else if (ys > 0 && y == state->height - 1)
- draw_tile(fe, state, x, -1, c, xs, ys);
+ draw_tile(fe, ds, state, x, -1, c, xs, ys);
if (x == state->last_move_col || y == state->last_move_row)
index(state, ds->visible, x, y) = 0xFF;
for (x = 0; x < ds->width; x++)
for (y = 0; y < ds->height; y++)
- draw_tile_barriers(fe, state, x, y);
+ draw_tile_barriers(fe, ds, state, x, y);
unclip(fe);
return TRUE;
}
-static int game_timing_state(game_state *state)
+static int game_timing_state(game_state *state, game_ui *ui)
{
return FALSE;
}
TRUE, game_configure, custom_params,
validate_params,
new_game_desc,
- game_free_aux_info,
validate_desc,
new_game,
dup_game,
FALSE, game_text_format,
new_ui,
free_ui,
- make_move,
- game_size,
+ encode_ui,
+ decode_ui,
+ game_changed_state,
+ interpret_move,
+ execute_move,
+ PREFERRED_TILE_SIZE, game_compute_size, game_set_size,
game_colours,
game_new_drawstate,
game_free_drawstate,
game_flash_length,
game_wants_statusbar,
FALSE, game_timing_state,
+ 0, /* mouse_priorities */
};