#include "puzzles.h"
#include "tree234.h"
-#define PI 3.141592653589793238462643383279502884197169399
-
#define MATMUL(xr,yr,m,x,y) do { \
float rx, ry, xx = (x), yy = (y), *mat = (m); \
rx = mat[0] * xx + mat[2] * yy; \
int height;
int wrapping;
float barrier_probability;
+ int movetarget;
+};
+
+struct game_aux_info {
+ int width, height;
+ unsigned char *tiles;
};
struct game_state {
int width, height, cx, cy, wrapping, completed;
- int move_count;
+ int used_solve, just_used_solve;
+ int move_count, movetarget;
/* position (row or col number, starting at 0) of last move. */
int last_move_row, last_move_col;
if (a->direction > b->direction)
return +1;
return 0;
-};
+}
static struct xyd *new_xyd(int x, int y, int direction)
{
}
static void slide_col(game_state *state, int dir, int col);
+static void slide_col_int(int w, int h, unsigned char *tiles, int dir, int col);
static void slide_row(game_state *state, int dir, int row);
+static void slide_row_int(int w, int h, unsigned char *tiles, int dir, int row);
/* ----------------------------------------------------------------------
* Manage game parameters.
ret->height = 3;
ret->wrapping = FALSE;
ret->barrier_probability = 1.0;
+ ret->movetarget = 0;
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;
return ret;
}
-static game_params *decode_params(char const *string)
+static void decode_params(game_params *ret, char const *string)
{
- game_params *ret = default_params();
char const *p = string;
ret->wrapping = FALSE;
ret->barrier_probability = 0.0;
+ ret->movetarget = 0;
ret->width = atoi(p);
while (*p && isdigit(*p)) p++;
while (*p && isdigit(*p)) p++;
if ( (ret->wrapping = (*p == 'w')) != 0 )
p++;
- if (*p == 'b')
- ret->barrier_probability = atof(p+1);
+ if (*p == 'b') {
+ ret->barrier_probability = atof(++p);
+ while (*p && (isdigit(*p) || *p == '.')) p++;
+ }
+ if (*p == 'm') {
+ ret->movetarget = atoi(++p);
+ }
} else {
ret->height = ret->width;
}
-
- return ret;
}
-static char *encode_params(game_params *params)
+static char *encode_params(game_params *params, int full)
{
char ret[400];
int len;
len = sprintf(ret, "%dx%d", params->width, params->height);
if (params->wrapping)
ret[len++] = 'w';
- if (params->barrier_probability)
+ if (full && params->barrier_probability)
len += sprintf(ret+len, "b%g", params->barrier_probability);
+ /* Shuffle limit is part of the limited parameters, because we have to
+ * provide the target move count. */
+ if (params->movetarget)
+ len += sprintf(ret+len, "m%d", params->movetarget);
assert(len < lenof(ret));
ret[len] = '\0';
config_item *ret;
char buf[80];
- ret = snewn(5, config_item);
+ ret = snewn(6, config_item);
ret[0].name = "Width";
ret[0].type = C_STRING;
ret[3].sval = dupstr(buf);
ret[3].ival = 0;
- ret[4].name = NULL;
- ret[4].type = C_END;
- ret[4].sval = NULL;
+ ret[4].name = "Number of shuffling moves";
+ ret[4].type = C_STRING;
+ sprintf(buf, "%d", params->movetarget);
+ ret[4].sval = dupstr(buf);
ret[4].ival = 0;
+ ret[5].name = NULL;
+ ret[5].type = C_END;
+ ret[5].sval = NULL;
+ ret[5].ival = 0;
+
return ret;
}
ret->height = atoi(cfg[1].sval);
ret->wrapping = cfg[2].ival;
ret->barrier_probability = (float)atof(cfg[3].sval);
+ ret->movetarget = atoi(cfg[4].sval);
return ret;
}
static char *validate_params(game_params *params)
{
- 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)
}
/* ----------------------------------------------------------------------
- * Randomly select a new game seed.
+ * Randomly select a new game description.
*/
-static char *new_game_seed(game_params *params, random_state *rs,
- game_aux_info **aux)
-{
- /*
- * The full description of a Net game is far too large to
- * encode directly in the seed, so by default we'll have to go
- * for the simple approach of providing a random-number seed.
- *
- * (This does not restrict me from _later on_ inventing a seed
- * string syntax which can never be generated by this code -
- * for example, strings beginning with a letter - allowing me
- * to type in a precise game, and have new_game detect it and
- * understand it and do something completely different.)
- */
- char buf[40];
- sprintf(buf, "%lu", random_bits(rs, 32));
- return dupstr(buf);
-}
-
-void game_free_aux_info(game_aux_info *aux)
+static char *new_game_desc(game_params *params, random_state *rs,
+ game_aux_info **aux, int interactive)
{
- assert(!"Shouldn't happen");
-}
+ tree234 *possibilities, *barriertree;
+ int w, h, x, y, cx, cy, nbarriers;
+ unsigned char *tiles, *barriers;
+ char *desc, *p;
-static char *validate_seed(game_params *params, char *seed)
-{
- /*
- * Since any string at all will suffice to seed the RNG, there
- * is no validation required.
- */
- return NULL;
-}
-
-/* ----------------------------------------------------------------------
- * Construct an initial game state, given a seed and parameters.
- */
-
-static game_state *new_game(game_params *params, char *seed)
-{
- random_state *rs;
- game_state *state;
- tree234 *possibilities, *barriers;
- int w, h, x, y, nbarriers;
-
- assert(params->width > 0 && params->height > 0);
- assert(params->width > 1 || params->height > 1);
-
- /*
- * Create a blank game state.
- */
- state = snew(game_state);
- w = state->width = params->width;
- h = state->height = params->height;
- state->cx = state->width / 2;
- state->cy = state->height / 2;
- state->wrapping = params->wrapping;
- state->completed = 0;
- state->move_count = 0;
- state->last_move_row = -1;
- state->last_move_col = -1;
- state->last_move_dir = 0;
- state->tiles = snewn(state->width * state->height, unsigned char);
- memset(state->tiles, 0, state->width * state->height);
- state->barriers = snewn(state->width * state->height, unsigned char);
- memset(state->barriers, 0, state->width * state->height);
+ w = params->width;
+ h = params->height;
- /*
- * Set up border barriers if this is a non-wrapping game.
- */
- if (!state->wrapping) {
- for (x = 0; x < state->width; x++) {
- barrier(state, x, 0) |= U;
- barrier(state, x, state->height-1) |= D;
- }
- for (y = 0; y < state->height; y++) {
- barrier(state, 0, y) |= L;
- barrier(state, state->width-1, y) |= R;
- }
- }
+ tiles = snewn(w * h, unsigned char);
+ memset(tiles, 0, w * h);
+ barriers = snewn(w * h, unsigned char);
+ memset(barriers, 0, w * h);
- /*
- * Seed the internal random number generator.
- */
- rs = random_init(seed, strlen(seed));
+ cx = w / 2;
+ cy = h / 2;
/*
* Construct the unshuffled grid.
*/
possibilities = newtree234(xyd_cmp);
- if (state->cx+1 < state->width)
- add234(possibilities, new_xyd(state->cx, state->cy, R));
- if (state->cy-1 >= 0)
- add234(possibilities, new_xyd(state->cx, state->cy, U));
- if (state->cx-1 >= 0)
- add234(possibilities, new_xyd(state->cx, state->cy, L));
- if (state->cy+1 < state->height)
- add234(possibilities, new_xyd(state->cx, state->cy, D));
+ if (cx+1 < w)
+ add234(possibilities, new_xyd(cx, cy, R));
+ if (cy-1 >= 0)
+ add234(possibilities, new_xyd(cx, cy, U));
+ if (cx-1 >= 0)
+ add234(possibilities, new_xyd(cx, cy, L));
+ if (cy+1 < h)
+ add234(possibilities, new_xyd(cx, cy, D));
while (count234(possibilities) > 0) {
int i;
d1 = xyd->direction;
sfree(xyd);
- OFFSET(x2, y2, x1, y1, d1, state);
+ 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
* Make the connection. (We should be moving to an as yet
* unused tile.)
*/
- tile(state, x1, y1) |= d1;
- assert(tile(state, x2, y2) == 0);
- tile(state, x2, y2) |= d2;
+ index(params, tiles, x1, y1) |= d1;
+ assert(index(params, tiles, x2, y2) == 0);
+ index(params, tiles, x2, y2) |= d2;
/*
* If we have created a T-piece, remove its last
* possibility.
*/
- if (COUNT(tile(state, x1, y1)) == 3) {
+ if (COUNT(index(params, tiles, x1, y1)) == 3) {
struct xyd xyd1, *xydp;
xyd1.x = x1;
xyd1.y = y1;
- xyd1.direction = 0x0F ^ tile(state, x1, y1);
+ xyd1.direction = 0x0F ^ index(params, tiles, x1, y1);
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
int x3, y3, d3;
struct xyd xyd1, *xydp;
- OFFSET(x3, y3, x2, y2, d, state);
+ OFFSET(x3, y3, x2, y2, d, params);
d3 = F(d);
xyd1.x = x3;
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 (d == d2)
continue; /* we've got this one already */
- if (!state->wrapping) {
+ if (!params->wrapping) {
if (d == U && y2 == 0)
continue;
- if (d == D && y2 == state->height-1)
+ if (d == D && y2 == h-1)
continue;
if (d == L && x2 == 0)
continue;
- if (d == R && x2 == state->width-1)
+ if (d == R && x2 == w-1)
continue;
}
- OFFSET(x3, y3, x2, y2, d, state);
+ OFFSET(x3, y3, x2, y2, d, params);
- if (tile(state, x3, y3))
+ 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
/*
* Now compute a list of the possible barrier locations.
*/
- barriers = newtree234(xyd_cmp);
- for (y = 0; y < state->height; y++) {
- for (x = 0; x < state->width; x++) {
-
- if (!(tile(state, x, y) & R) &&
- (state->wrapping || x < state->width-1))
- add234(barriers, new_xyd(x, y, R));
- if (!(tile(state, x, y) & D) &&
- (state->wrapping || y < state->height-1))
- add234(barriers, new_xyd(x, y, D));
+ barriertree = newtree234(xyd_cmp);
+ for (y = 0; y < h; y++) {
+ for (x = 0; x < w; x++) {
+
+ if (!(index(params, tiles, x, y) & R) &&
+ (params->wrapping || x < w-1))
+ add234(barriertree, new_xyd(x, y, R));
+ if (!(index(params, tiles, x, y) & D) &&
+ (params->wrapping || y < h-1))
+ add234(barriertree, new_xyd(x, y, D));
}
}
/*
+ * 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.
+ */
+ {
+ game_aux_info *solution;
+
+ solution = snew(game_aux_info);
+ solution->width = w;
+ solution->height = h;
+ solution->tiles = snewn(w * h, unsigned char);
+ memcpy(solution->tiles, tiles, w * h);
+
+ *aux = solution;
+ }
+
+ /*
* Now shuffle the grid.
- * FIXME - this simply does a set of random moves to shuffle the pieces.
+ * FIXME - this simply does a set of random moves to shuffle the pieces,
+ * although we make a token effort to avoid boring cases by avoiding moves
+ * that directly undo the previous one, or that repeat so often as to
+ * turn into fewer moves.
+ *
* A better way would be to number all the pieces, generate a placement
* for all the numbers as for "sixteen", observing parity constraints if
* neccessary, and then place the pieces according to their numbering.
*/
{
int i;
- int cols = state->width - 1;
- int rows = state->height - 1;
- for (i = 0; i < cols * rows * 2; i++) {
+ int cols = w - 1;
+ int rows = h - 1;
+ int moves = params->movetarget;
+ int prevdir = -1, prevrowcol = -1, nrepeats = 0;
+ if (!moves) moves = cols * rows * 2;
+ for (i = 0; i < moves; /* incremented conditionally */) {
/* Choose a direction: 0,1,2,3 = up, right, down, left. */
int dir = random_upto(rs, 4);
+ int rowcol;
if (dir % 2 == 0) {
int col = random_upto(rs, cols);
- if (col >= state->cx) col += 1;
- slide_col(state, 1 - dir, col);
+ if (col >= cx) col += 1; /* avoid centre */
+ if (col == prevrowcol) {
+ if (dir == 2-prevdir)
+ continue; /* undoes last move */
+ else if ((nrepeats+1)*2 > h)
+ continue; /* makes fewer moves */
+ }
+ slide_col_int(w, h, tiles, 1 - dir, col);
+ rowcol = col;
} else {
int row = random_upto(rs, rows);
- if (row >= state->cy) row += 1;
- slide_row(state, 2 - dir, row);
+ if (row >= cy) row += 1; /* avoid centre */
+ if (row == prevrowcol) {
+ if (dir == 4-prevdir)
+ continue; /* undoes last move */
+ else if ((nrepeats+1)*2 > w)
+ continue; /* makes fewer moves */
+ }
+ slide_row_int(w, h, tiles, 2 - dir, row);
+ rowcol = row;
}
+ if (dir == prevdir && rowcol == prevrowcol)
+ nrepeats++;
+ else
+ nrepeats = 1;
+ prevdir = dir;
+ prevrowcol = rowcol;
+ i++; /* if we got here, the move was accepted */
}
}
/*
* And now choose barrier locations. (We carefully do this
* _after_ shuffling, so that changing the barrier rate in the
- * params while keeping the game seed the same will give the
+ * params while keeping the random seed the same will give the
* same shuffled grid and _only_ change the barrier locations.
* Also the way we choose barrier locations, by repeatedly
* choosing one possibility from the list until we have enough,
* the original 10 plus 10 more, rather than getting 20 new
* ones and the chance of remembering your first 10.)
*/
- nbarriers = (int)(params->barrier_probability * count234(barriers));
- assert(nbarriers >= 0 && nbarriers <= count234(barriers));
+ nbarriers = (int)(params->barrier_probability * count234(barriertree));
+ assert(nbarriers >= 0 && nbarriers <= count234(barriertree));
while (nbarriers > 0) {
int i;
/*
* Extract a randomly chosen barrier from the list.
*/
- i = random_upto(rs, count234(barriers));
- xyd = delpos234(barriers, i);
+ i = random_upto(rs, count234(barriertree));
+ xyd = delpos234(barriertree, i);
assert(xyd != NULL);
d1 = xyd->direction;
sfree(xyd);
- OFFSET(x2, y2, x1, y1, d1, state);
+ OFFSET(x2, y2, x1, y1, d1, params);
d2 = F(d1);
- barrier(state, x1, y1) |= d1;
- barrier(state, x2, y2) |= d2;
+ index(params, barriers, x1, y1) |= d1;
+ index(params, barriers, x2, y2) |= d2;
nbarriers--;
}
{
struct xyd *xyd;
- while ( (xyd = delpos234(barriers, 0)) != NULL)
+ while ( (xyd = delpos234(barriertree, 0)) != NULL)
sfree(xyd);
- freetree234(barriers);
+ freetree234(barriertree);
+ }
+
+ /*
+ * Finally, encode the grid into a string game description.
+ *
+ * My syntax is extremely simple: each square is encoded as a
+ * hex digit in which bit 0 means a connection on the right,
+ * bit 1 means up, bit 2 left and bit 3 down. (i.e. the same
+ * encoding as used internally). Each digit is followed by
+ * optional barrier indicators: `v' means a vertical barrier to
+ * the right of it, and `h' means a horizontal barrier below
+ * it.
+ */
+ desc = snewn(w * h * 3 + 1, char);
+ p = desc;
+ for (y = 0; y < h; y++) {
+ for (x = 0; x < w; x++) {
+ *p++ = "0123456789abcdef"[index(params, tiles, x, y)];
+ if ((params->wrapping || x < w-1) &&
+ (index(params, barriers, x, y) & R))
+ *p++ = 'v';
+ if ((params->wrapping || y < h-1) &&
+ (index(params, barriers, x, y) & D))
+ *p++ = 'h';
+ }
+ }
+ assert(p - desc <= w*h*3);
+ *p = '\0';
+
+ sfree(tiles);
+ sfree(barriers);
+
+ 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;
+ int i;
+
+ for (i = 0; i < w*h; i++) {
+ if (*desc >= '0' && *desc <= '9')
+ /* OK */;
+ else if (*desc >= 'a' && *desc <= 'f')
+ /* OK */;
+ else if (*desc >= 'A' && *desc <= 'F')
+ /* OK */;
+ else if (!*desc)
+ return "Game description shorter than expected";
+ else
+ return "Game description contained unexpected character";
+ desc++;
+ while (*desc == 'h' || *desc == 'v')
+ desc++;
+ }
+ if (*desc)
+ return "Game description longer than expected";
+
+ return NULL;
+}
+
+/* ----------------------------------------------------------------------
+ * Construct an initial game state, given a description and parameters.
+ */
+
+static game_state *new_game(midend_data *me, game_params *params, char *desc)
+{
+ game_state *state;
+ int w, h, x, y;
+
+ assert(params->width > 0 && params->height > 0);
+ assert(params->width > 1 || params->height > 1);
+
+ /*
+ * Create a blank game state.
+ */
+ state = snew(game_state);
+ w = state->width = params->width;
+ h = state->height = params->height;
+ state->cx = state->width / 2;
+ state->cy = state->height / 2;
+ state->wrapping = params->wrapping;
+ state->movetarget = params->movetarget;
+ state->completed = 0;
+ state->used_solve = state->just_used_solve = FALSE;
+ state->move_count = 0;
+ state->last_move_row = -1;
+ state->last_move_col = -1;
+ state->last_move_dir = 0;
+ state->tiles = snewn(state->width * state->height, unsigned char);
+ memset(state->tiles, 0, state->width * state->height);
+ state->barriers = snewn(state->width * state->height, unsigned char);
+ memset(state->barriers, 0, state->width * state->height);
+
+
+ /*
+ * Parse the game description into the grid.
+ */
+ for (y = 0; y < h; y++) {
+ for (x = 0; x < w; x++) {
+ if (*desc >= '0' && *desc <= '9')
+ tile(state, x, y) = *desc - '0';
+ else if (*desc >= 'a' && *desc <= 'f')
+ tile(state, x, y) = *desc - 'a' + 10;
+ else if (*desc >= 'A' && *desc <= 'F')
+ tile(state, x, y) = *desc - 'A' + 10;
+ if (*desc)
+ desc++;
+ while (*desc == 'h' || *desc == 'v') {
+ int x2, y2, d1, d2;
+ if (*desc == 'v')
+ d1 = R;
+ else
+ d1 = D;
+
+ OFFSET(x2, y2, x, y, d1, state);
+ d2 = F(d1);
+
+ barrier(state, x, y) |= d1;
+ barrier(state, x2, y2) |= d2;
+
+ desc++;
+ }
+ }
+ }
+
+ /*
+ * Set up border barriers if this is a non-wrapping game.
+ */
+ if (!state->wrapping) {
+ for (x = 0; x < state->width; x++) {
+ barrier(state, x, 0) |= U;
+ barrier(state, x, state->height-1) |= D;
+ }
+ for (y = 0; y < state->height; y++) {
+ barrier(state, 0, y) |= L;
+ barrier(state, state->width-1, y) |= R;
+ }
}
/*
}
}
- random_free(rs);
-
return state;
}
ret->cx = state->cx;
ret->cy = state->cy;
ret->wrapping = state->wrapping;
+ ret->movetarget = state->movetarget;
ret->completed = state->completed;
+ ret->used_solve = state->used_solve;
+ ret->just_used_solve = state->just_used_solve;
ret->move_count = state->move_count;
ret->last_move_row = state->last_move_row;
ret->last_move_col = state->last_move_col;
sfree(state);
}
+static game_state *solve_game(game_state *state, game_aux_info *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;
+}
+
static char *game_text_format(game_state *state)
{
return NULL;
* Process a move.
*/
-static void slide_row(game_state *state, int dir, int row)
+static void slide_row_int(int w, int h, unsigned char *tiles, int dir, int row)
{
- int x = dir > 0 ? -1 : state->width;
+ int x = dir > 0 ? -1 : w;
int tx = x + dir;
- int n = state->width - 1;
- unsigned char endtile = state->tiles[T(state, tx, row)];
+ int n = w - 1;
+ unsigned char endtile = tiles[row * w + tx];
do {
x = tx;
- tx = (x + dir + state->width) % state->width;
- state->tiles[T(state, x, row)] = state->tiles[T(state, tx, row)];
+ tx = (x + dir + w) % w;
+ tiles[row * w + x] = tiles[row * w + tx];
} while (--n > 0);
- state->tiles[T(state, tx, row)] = endtile;
+ tiles[row * w + tx] = endtile;
}
-static void slide_col(game_state *state, int dir, int col)
+static void slide_col_int(int w, int h, unsigned char *tiles, int dir, int col)
{
- int y = dir > 0 ? -1 : state->height;
+ int y = dir > 0 ? -1 : h;
int ty = y + dir;
- int n = state->height - 1;
- unsigned char endtile = state->tiles[T(state, col, ty)];
+ int n = h - 1;
+ unsigned char endtile = tiles[ty * w + col];
do {
y = ty;
- ty = (y + dir + state->height) % state->height;
- state->tiles[T(state, col, y)] = state->tiles[T(state, col, ty)];
+ ty = (y + dir + h) % h;
+ tiles[y * w + col] = tiles[ty * w + col];
} while (--n > 0);
- state->tiles[T(state, col, ty)] = endtile;
+ tiles[ty * w + col] = endtile;
+}
+
+static void slide_row(game_state *state, int dir, int row)
+{
+ slide_row_int(state->width, state->height, state->tiles, dir, row);
+}
+
+static void slide_col(game_state *state, int dir, int col)
+{
+ slide_col_int(state->width, state->height, state->tiles, dir, col);
+}
+
+static void game_changed_state(game_ui *ui, game_state *oldstate,
+ game_state *newstate)
+{
}
static game_state *make_move(game_state *state, game_ui *ui,
- int x, int y, int button)
+ game_drawstate *ds, int x, int y, int button)
{
int cx, cy;
int n, dx, dy;
game_state *ret;
+ button &= ~MOD_MASK;
+
if (button != LEFT_BUTTON && button != RIGHT_BUTTON)
return NULL;
}
ret = dup_game(state);
+ ret->just_used_solve = FALSE;
if (dx == 0) slide_col(ret, dy, cx);
else slide_row(ret, dx, cy);
if (active[i])
a++;
- sprintf(statusbuf, "%sMoves: %d Active: %d/%d",
- (state->completed ? "COMPLETED! " : ""),
- (state->completed ? state->completed : state->move_count),
- a, n);
+ if (state->used_solve)
+ sprintf(statusbuf, "Moves since auto-solve: %d",
+ state->move_count - state->completed);
+ else
+ sprintf(statusbuf, "%sMoves: %d",
+ (state->completed ? "COMPLETED! " : ""),
+ (state->completed ? state->completed : state->move_count));
+
+ if (state->movetarget)
+ sprintf(statusbuf + strlen(statusbuf), " (target %d)",
+ state->movetarget);
+
+ sprintf(statusbuf + strlen(statusbuf), " Active: %d/%d", a, n);
status_bar(fe, statusbuf);
}
}
static float game_anim_length(game_state *oldstate,
- game_state *newstate, int dir)
+ game_state *newstate, int dir, game_ui *ui)
{
+ /*
+ * Don't animate an auto-solve move.
+ */
+ if ((dir > 0 && newstate->just_used_solve) ||
+ (dir < 0 && oldstate->just_used_solve))
+ return 0.0F;
+
return ANIM_TIME;
}
static float game_flash_length(game_state *oldstate,
- game_state *newstate, int dir)
+ game_state *newstate, int dir, game_ui *ui)
{
/*
* If the game has just been completed, we display a completion
* flash.
*/
- if (!oldstate->completed && newstate->completed) {
+ if (!oldstate->completed && newstate->completed &&
+ !oldstate->used_solve && !newstate->used_solve) {
int size;
size = 0;
if (size < newstate->cx+1)
return TRUE;
}
+static int game_timing_state(game_state *state)
+{
+ return FALSE;
+}
+
#ifdef COMBINED
#define thegame netslide
#endif
dup_params,
TRUE, game_configure, custom_params,
validate_params,
- new_game_seed,
+ new_game_desc,
game_free_aux_info,
- validate_seed,
+ validate_desc,
new_game,
dup_game,
free_game,
+ TRUE, solve_game,
FALSE, game_text_format,
new_ui,
free_ui,
+ game_changed_state,
make_move,
game_size,
game_colours,
game_anim_length,
game_flash_length,
game_wants_statusbar,
+ FALSE, game_timing_state,
+ 0, /* mouse_priorities */
};
~mdw / sgt / puzzles / blobdiff