return ret;
}
-static int game_fetch_preset(int i, char **name, game_params **params)
-{
- return FALSE;
-}
-
static void free_params(game_params *params)
{
sfree(params);
return ret;
}
+static const struct {
+ char *name;
+ game_params params;
+} guess_presets[] = {
+ {"Standard", {6, 4, 10, FALSE, TRUE}},
+ {"Super", {8, 5, 12, FALSE, TRUE}},
+};
+
+
+static int game_fetch_preset(int i, char **name, game_params **params)
+{
+ if (i < 0 || i >= lenof(guess_presets))
+ return FALSE;
+
+ *name = dupstr(guess_presets[i].name);
+ /*
+ * get round annoying const issues
+ */
+ {
+ game_params tmp = guess_presets[i].params;
+ *params = dup_params(&tmp);
+ }
+
+ return TRUE;
+}
+
static void decode_params(game_params *params, char const *string)
{
char const *p = string;
return ret;
}
-static char *validate_params(game_params *params)
+static char *validate_params(game_params *params, int full)
{
if (params->ncolours < 2 || params->npegs < 2)
return "Trivial solutions are uninteresting";
}
static char *new_game_desc(game_params *params, random_state *rs,
- game_aux_info **aux, int interactive)
+ char **aux, int interactive)
{
unsigned char *bmp = snewn(params->npegs, unsigned char);
char *ret;
return ret;
}
-static void game_free_aux_info(game_aux_info *aux)
-{
- assert(!"Shouldn't happen");
-}
-
static char *validate_desc(game_params *params, char *desc)
{
unsigned char *bmp;
sfree(state);
}
-static game_state *solve_game(game_state *state, game_state *currstate,
- game_aux_info *aux, char **error)
+static char *solve_game(game_state *state, game_state *currstate,
+ char *aux, char **error)
{
- game_state *ret = dup_game(currstate);
- ret->solved = 1;
- return ret;
+ return dupstr("S");
}
static char *game_text_format(game_state *state)
return NULL;
}
+static int is_markable(game_params *params, pegrow pegs)
+{
+ int i, nset = 0, nrequired, ret = 0;
+ pegrow colcount = new_pegrow(params->ncolours);
+
+ nrequired = params->allow_blank ? 1 : params->npegs;
+
+ for (i = 0; i < params->npegs; i++) {
+ int c = pegs->pegs[i];
+ if (c > 0) {
+ colcount->pegs[c-1]++;
+ nset++;
+ }
+ }
+ if (nset < nrequired) goto done;
+
+ if (!params->allow_multiple) {
+ for (i = 0; i < params->ncolours; i++) {
+ if (colcount->pegs[i] > 1) goto done;
+ }
+ }
+ ret = 1;
+done:
+ free_pegrow(colcount);
+ return ret;
+}
+
struct game_ui {
+ game_params params;
pegrow curr_pegs; /* half-finished current move */
int *holds;
int colour_cur; /* position of up-down colour picker cursor */
{
game_ui *ui = snew(struct game_ui);
memset(ui, 0, sizeof(struct game_ui));
+ ui->params = state->params; /* structure copy */
ui->curr_pegs = new_pegrow(state->params.npegs);
ui->holds = snewn(state->params.npegs, int);
memset(ui->holds, 0, sizeof(int)*state->params.npegs);
sfree(ui);
}
+static char *encode_ui(game_ui *ui)
+{
+ char *ret, *p, *sep;
+ int i;
+
+ /*
+ * For this game it's worth storing the contents of the current
+ * guess.
+ */
+ ret = snewn(40 * ui->curr_pegs->npegs, char);
+ p = ret;
+ sep = "";
+ for (i = 0; i < ui->curr_pegs->npegs; i++) {
+ p += sprintf(p, "%s%d", sep, ui->curr_pegs->pegs[i]);
+ sep = ",";
+ }
+ assert(p - ret < 40 * ui->curr_pegs->npegs);
+ return sresize(ret, p - ret + 1, char);
+}
+
+static void decode_ui(game_ui *ui, char *encoding)
+{
+ int i;
+ char *p = encoding;
+ for (i = 0; i < ui->curr_pegs->npegs; i++) {
+ ui->curr_pegs->pegs[i] = atoi(p);
+ while (*p && isdigit((unsigned char)*p)) p++;
+ if (*p == ',') p++;
+ }
+ ui->markable = is_markable(&ui->params, ui->curr_pegs);
+}
+
static void game_changed_state(game_ui *ui, game_state *oldstate,
game_state *newstate)
{
/* just clear the row-in-progress when we have an undo/redo. */
for (i = 0; i < ui->curr_pegs->npegs; i++)
ui->curr_pegs->pegs[i] = 0;
+ ui->markable = FALSE;
}
#define PEGSZ (ds->pegsz)
#define HINTSZ (ds->hintsz)
#define HINTOFF (ds->hintsz + ds->gapsz)
+#define GAP (ds->gapsz)
#define CGAP (ds->gapsz / 2)
#define PEGRAD (ds->pegrad)
#define HINT_OY (GUESS_OY + (PEGSZ - HINTOFF - HINTSZ) / 2)
#define HINT_X(g) HINT_OX
#define HINT_Y(g) (HINT_OY + (g)*PEGOFF)
-#define HINT_W (ds->hintw*HINTOFF)
+#define HINT_W ((ds->hintw*HINTOFF) - GAP)
#define HINT_H GUESS_H
#define SOLN_OX GUESS_OX
int drag_col, blit_ox, blit_oy;
};
-static int is_markable(game_params *params, pegrow pegs)
-{
- int i, nset = 0, nrequired, ret = 0;
- pegrow colcount = new_pegrow(params->ncolours);
-
- nrequired = params->allow_blank ? 1 : params->npegs;
-
- for (i = 0; i < params->npegs; i++) {
- int c = pegs->pegs[i];
- if (c > 0) {
- colcount->pegs[c-1]++;
- nset++;
- }
- }
- if (nset < nrequired) goto done;
-
- if (!params->allow_multiple) {
- for (i = 0; i < params->ncolours; i++) {
- if (colcount->pegs[i] > 1) goto done;
- }
- }
- ret = 1;
-done:
- free_pegrow(colcount);
- return ret;
-}
-
static void set_peg(game_params *params, game_ui *ui, int peg, int col)
{
ui->curr_pegs->pegs[peg] = col;
return nc_place;
}
-static game_state *mark_move(game_state *from, game_ui *ui)
+static char *encode_move(game_state *from, game_ui *ui)
{
- int i, ncleared = 0, nc_place;
- game_state *to = dup_game(from);
-
- for (i = 0; i < to->solution->npegs; i++) {
- to->guesses[from->next_go]->pegs[i] = ui->curr_pegs->pegs[i];
+ char *buf, *p, *sep;
+ int len, i, solved;
+ pegrow tmppegs;
+
+ len = ui->curr_pegs->npegs * 20 + 2;
+ buf = snewn(len, char);
+ p = buf;
+ *p++ = 'G';
+ sep = "";
+ for (i = 0; i < ui->curr_pegs->npegs; i++) {
+ p += sprintf(p, "%s%d", sep, ui->curr_pegs->pegs[i]);
+ sep = ",";
}
- nc_place = mark_pegs(to->guesses[from->next_go], to->solution, to->params.ncolours);
-
- if (nc_place == to->solution->npegs) {
- to->solved = 1; /* win! */
- } else {
- to->next_go = from->next_go + 1;
- if (to->next_go >= to->params.nguesses)
- to->solved = 1; /* 'lose' so we show the pegs. */
- }
-
- for (i = 0; i < to->solution->npegs; i++) {
- if (!ui->holds[i] || to->solved) {
- ui->curr_pegs->pegs[i] = 0;
- ncleared++;
- }
- if (to->solved) ui->holds[i] = 0;
+ *p++ = '\0';
+ assert(p - buf <= len);
+ buf = sresize(buf, len, char);
+
+ tmppegs = dup_pegrow(ui->curr_pegs);
+ solved = mark_pegs(tmppegs, from->solution, from->params.ncolours);
+ solved = (solved == from->params.ncolours);
+ free_pegrow(tmppegs);
+
+ for (i = 0; i < from->solution->npegs; i++) {
+ if (!ui->holds[i] || solved) {
+ ui->curr_pegs->pegs[i] = 0;
+ }
+ if (solved) ui->holds[i] = 0;
}
ui->markable = is_markable(&from->params, ui->curr_pegs);
- if (!ui->markable && ui->peg_cur == to->solution->npegs)
- ui->peg_cur--;
+ if (!ui->markable && ui->peg_cur == from->solution->npegs)
+ ui->peg_cur--;
- return to;
+ return buf;
}
-static game_state *make_move(game_state *from, game_ui *ui, game_drawstate *ds,
- int x, int y, int button)
+static char *interpret_move(game_state *from, game_ui *ui, game_drawstate *ds,
+ int x, int y, int button)
{
int over_col = 0; /* one-indexed */
int over_guess = -1; /* zero-indexed */
int over_past_guess_y = -1; /* zero-indexed */
int over_past_guess_x = -1; /* zero-indexed */
int over_hint = 0; /* zero or one */
- game_state *ret = NULL;
+ char *ret = NULL;
int guess_ox = GUESS_X(from->next_go, 0);
int guess_oy = GUESS_Y(from->next_go, 0);
} else {
over_hint = 1;
}
- } else if (x >= guess_ox &&
+ } else if (x >= guess_ox && x <= (guess_ox + GUESS_W) &&
y >= GUESS_OY && y < guess_oy) {
over_past_guess_y = (y - GUESS_OY) / PEGOFF;
over_past_guess_x = (x - guess_ox) / PEGOFF;
ui->drag_y = y;
debug(("Start dragging, col = %d, (%d,%d)",
ui->drag_col, ui->drag_x, ui->drag_y));
- ret = from;
+ ret = "";
}
} else if (button == LEFT_DRAG && ui->drag_col) {
ui->drag_x = x;
ui->drag_y = y;
debug(("Keep dragging, (%d,%d)", ui->drag_x, ui->drag_y));
- ret = from;
+ ret = "";
} else if (button == LEFT_RELEASE && ui->drag_col) {
if (over_guess > -1) {
debug(("Dropping colour %d onto guess peg %d",
}
ui->drag_col = 0;
ui->drag_opeg = -1;
+ ui->display_cur = 0;
debug(("Stop dragging."));
- ret = from;
+ ret = "";
} else if (button == RIGHT_BUTTON) {
if (over_guess > -1) {
/* we use ths feedback in the game_ui to signify
* 'carry this peg to the next guess as well'. */
ui->holds[over_guess] = 1 - ui->holds[over_guess];
- ret = from;
+ ret = "";
}
} else if (button == LEFT_RELEASE && over_hint && ui->markable) {
/* NB this won't trigger if on the end of a drag; that's on
* purpose, in case you drop by mistake... */
- ret = mark_move(from, ui);
+ ret = encode_move(from, ui);
}
/* keyboard input */
ui->colour_cur++;
if (button == CURSOR_UP && ui->colour_cur > 0)
ui->colour_cur--;
- ret = from;
+ ret = "";
} else if (button == CURSOR_LEFT || button == CURSOR_RIGHT) {
int maxcur = from->params.npegs;
if (ui->markable) maxcur++;
ui->peg_cur++;
if (button == CURSOR_LEFT && ui->peg_cur > 0)
ui->peg_cur--;
- ret = from;
+ ret = "";
} else if (button == CURSOR_SELECT || button == ' ' || button == '\r' ||
button == '\n') {
+ ui->display_cur = 1;
if (ui->peg_cur == from->params.npegs) {
- ret = mark_move(from, ui);
+ ret = encode_move(from, ui);
} else {
set_peg(&from->params, ui, ui->peg_cur, ui->colour_cur+1);
- ret = from;
+ ret = "";
}
+ } else if (button == 'D' || button == 'd' || button == '\b') {
+ ui->display_cur = 1;
+ set_peg(&from->params, ui, ui->peg_cur, 0);
+ ret = "";
} else if (button == 'H' || button == 'h') {
+ ui->display_cur = 1;
ui->holds[ui->peg_cur] = 1 - ui->holds[ui->peg_cur];
- ret = from;
+ ret = "";
}
return ret;
}
+static game_state *execute_move(game_state *from, char *move)
+{
+ int i, nc_place;
+ game_state *ret;
+ char *p;
+
+ if (!strcmp(move, "S")) {
+ ret = dup_game(from);
+ ret->solved = 1;
+ return ret;
+ } else if (move[0] == 'G') {
+ p = move+1;
+
+ ret = dup_game(from);
+
+ for (i = 0; i < from->solution->npegs; i++) {
+ int val = atoi(p);
+ if (val <= 0 || val > from->params.ncolours) {
+ free_game(ret);
+ return NULL;
+ }
+ ret->guesses[from->next_go]->pegs[i] = atoi(p);
+ while (*p && isdigit((unsigned char)*p)) p++;
+ if (*p == ',') p++;
+ }
+
+ nc_place = mark_pegs(ret->guesses[from->next_go], ret->solution, ret->params.ncolours);
+
+ if (nc_place == ret->solution->npegs) {
+ ret->solved = 1; /* win! */
+ } else {
+ ret->next_go = from->next_go + 1;
+ if (ret->next_go >= ret->params.nguesses)
+ ret->solved = 1; /* 'lose' so we show the pegs. */
+ }
+
+ return ret;
+ } else
+ return NULL;
+}
+
/* ----------------------------------------------------------------------
* Drawing routines.
*/
#define BORDER 0.5
-static void game_size(game_params *params, game_drawstate *ds,
- int *x, int *y, int expand)
+static void game_compute_size(game_params *params, int tilesize,
+ int *x, int *y)
{
- double hmul, vmul_c, vmul_g, vmul, szx, szy;
- int sz, colh, guessh;
+ double hmul, vmul_c, vmul_g, vmul;
+ int hintw = (params->npegs+1)/2;
hmul = BORDER * 2.0 + /* border */
1.0 * 2.0 + /* vertical colour bar */
1.0 * params->npegs + /* guess pegs */
PEG_GAP * params->npegs + /* guess gaps */
- PEG_HINT * ds->hintw + /* hint pegs */
- PEG_GAP * (ds->hintw - 1); /* hint gaps */
+ PEG_HINT * hintw + /* hint pegs */
+ PEG_GAP * (hintw - 1); /* hint gaps */
vmul_c = BORDER * 2.0 + /* border */
1.0 * params->ncolours + /* colour pegs */
vmul = max(vmul_c, vmul_g);
- szx = *x / hmul;
- szy = *y / vmul;
- sz = max(min((int)szx, (int)szy), 1);
- if (expand)
- ds->pegsz = sz;
- else
- ds->pegsz = min(sz, PEG_PREFER_SZ);
+ *x = (int)ceil((double)tilesize * hmul);
+ *y = (int)ceil((double)tilesize * vmul);
+}
+
+static void game_set_size(game_drawstate *ds, game_params *params,
+ int tilesize)
+{
+ int colh, guessh;
+
+ ds->pegsz = tilesize;
ds->hintsz = (int)((double)ds->pegsz * PEG_HINT);
ds->gapsz = (int)((double)ds->pegsz * PEG_GAP);
ds->pegrad = (ds->pegsz -1)/2; /* radius of peg to fit in pegsz (which is 2r+1) */
ds->hintrad = (ds->hintsz-1)/2;
- *x = (int)ceil((double)ds->pegsz * hmul);
- *y = (int)ceil((double)ds->pegsz * vmul);
- ds->w = *x; ds->h = *y;
-
colh = ((ds->pegsz + ds->gapsz) * params->ncolours) - ds->gapsz;
guessh = ((ds->pegsz + ds->gapsz) * params->nguesses); /* guesses */
guessh += ds->gapsz + ds->pegsz; /* solution */
+ game_compute_size(params, tilesize, &ds->w, &ds->h);
ds->colx = ds->border;
- ds->coly = (*y - colh) / 2;
+ ds->coly = (ds->h - colh) / 2;
ds->guessx = ds->solnx = ds->border + ds->pegsz * 2; /* border + colours */
- ds->guessy = (*y - guessh) / 2;
+ ds->guessy = (ds->h - guessh) / 2;
ds->solny = ds->guessy + ((ds->pegsz + ds->gapsz) * params->nguesses) + ds->gapsz;
- if (ds->pegsz > 0) {
- if (ds->blit_peg) blitter_free(ds->blit_peg);
- ds->blit_peg = blitter_new(ds->pegsz, ds->pegsz);
- }
+ assert(ds->pegsz > 0);
+ if (ds->blit_peg) blitter_free(ds->blit_peg);
+ ds->blit_peg = blitter_new(ds->pegsz, ds->pegsz);
}
static float *game_colours(frontend *fe, game_state *state, int *ncolours)
{
- float *ret = snewn(3 * NCOLOURS, float);
+ float *ret = snewn(3 * NCOLOURS, float), max;
+ int i;
frontend_default_colour(fe, &ret[COL_BACKGROUND * 3]);
ret[COL_HOLD * 3 + 1] = 0.5F;
ret[COL_HOLD * 3 + 2] = 0.5F;
- ret[COL_EMPTY * 3 + 0] = ret[COL_BACKGROUND * 3 + 0] * 2.0 / 3.0;
- ret[COL_EMPTY * 3 + 1] = ret[COL_BACKGROUND * 3 + 1] * 2.0 / 3.0;
- ret[COL_EMPTY * 3 + 2] = ret[COL_BACKGROUND * 3 + 2] * 2.0 / 3.0;
-
ret[COL_CORRECTPLACE*3 + 0] = 0.0F;
ret[COL_CORRECTPLACE*3 + 1] = 0.0F;
ret[COL_CORRECTPLACE*3 + 2] = 0.0F;
ret[COL_CORRECTCOLOUR*3 + 1] = 1.0F;
ret[COL_CORRECTCOLOUR*3 + 2] = 1.0F;
+ /* We want to make sure we can distinguish COL_CORRECTCOLOUR
+ * (which we hard-code as white) from COL_BACKGROUND (which
+ * could default to white on some platforms).
+ * Code borrowed from fifteen.c. */
+ max = ret[COL_BACKGROUND*3];
+ for (i = 1; i < 3; i++)
+ if (ret[COL_BACKGROUND*3+i] > max)
+ max = ret[COL_BACKGROUND*3+i];
+ if (max * 1.2F > 1.0F) {
+ for (i = 0; i < 3; i++)
+ ret[COL_BACKGROUND*3+i] /= (max * 1.2F);
+ }
+
+ /* We also want to be able to tell the difference between BACKGROUND
+ * and EMPTY, for similar distinguishing-hint reasons. */
+ ret[COL_EMPTY * 3 + 0] = ret[COL_BACKGROUND * 3 + 0] * 2.0 / 3.0;
+ ret[COL_EMPTY * 3 + 1] = ret[COL_BACKGROUND * 3 + 1] * 2.0 / 3.0;
+ ret[COL_EMPTY * 3 + 2] = ret[COL_BACKGROUND * 3 + 2] * 2.0 / 3.0;
+
*ncolours = NCOLOURS;
return ret;
}
draw_rect(fe, cx-CGAP, cy-CGAP, PEGSZ+CGAP*2, PEGSZ+CGAP*2,
COL_BACKGROUND);
if (PEGRAD > 0) {
- draw_circle(fe, cx+PEGRAD, cy+PEGRAD, PEGRAD, 1, COL_EMPTY + col);
- draw_circle(fe, cx+PEGRAD, cy+PEGRAD, PEGRAD, 0, COL_EMPTY + col);
+ draw_circle(fe, cx+PEGRAD, cy+PEGRAD, PEGRAD,
+ COL_EMPTY + col, COL_EMPTY + col);
} else
draw_rect(fe, cx, cy, PEGSZ, PEGSZ, COL_EMPTY + col);
draw_update(fe, cx-CGAP, cy-CGAP, PEGSZ+CGAP*2, PEGSZ+CGAP*2);
static void draw_cursor(frontend *fe, game_drawstate *ds, int x, int y)
{
- draw_circle(fe, x+PEGRAD, y+PEGRAD, PEGRAD+CGAP, 0, COL_CURSOR);
+ draw_circle(fe, x+PEGRAD, y+PEGRAD, PEGRAD+CGAP, -1, COL_CURSOR);
draw_update(fe, x-CGAP, y-CGAP, PEGSZ+CGAP*2, PEGSZ+CGAP*2);
}
}
static void hint_redraw(frontend *fe, game_drawstate *ds, int guess,
- pegrow src, int force, int cursor, int emptycol)
+ pegrow src, int force, int cursor, int markable)
{
pegrow dest = ds->guesses[guess];
int rowx, rowy, i, scol, col, hintlen;
int need_redraw;
+ int emptycol = (markable ? COL_FLASH : COL_EMPTY);
if (src) assert(src->npegs == dest->npegs);
scol = src ? src->feedback[i] : 0;
if (i == 0 && cursor)
scol |= 0x1000;
+ if (i == 0 && markable)
+ scol |= 0x2000;
if ((scol != dest->feedback[i]) || force) {
need_redraw = TRUE;
}
}
if (need_redraw) {
+ int hinth = HINTSZ + GAP + HINTSZ;
+ int hx,hy,hw,hh;
+
+ hx = HINT_X(guess)-GAP; hy = HINT_Y(guess)-GAP;
+ hw = HINT_W+GAP*2; hh = hinth+GAP*2;
+
/* erase a large background rectangle */
- draw_rect(fe, GUESS_X(guess, dest->npegs)-CGAP,
- GUESS_Y(guess, dest->npegs)-CGAP,
- PEGSZ+CGAP*2, PEGSZ+CGAP*2, COL_BACKGROUND);
+ draw_rect(fe, hx, hy, hw, hh, COL_BACKGROUND);
for (i = 0; i < dest->npegs; i++) {
scol = src ? src->feedback[i] : 0;
rowy += HINTOFF;
}
if (HINTRAD > 0) {
- draw_circle(fe, rowx+HINTRAD, rowy+HINTRAD, HINTRAD, 1, col);
- draw_circle(fe, rowx+HINTRAD, rowy+HINTRAD, HINTRAD, 0, col);
+ draw_circle(fe, rowx+HINTRAD, rowy+HINTRAD, HINTRAD, col, col);
} else {
draw_rect(fe, rowx, rowy, HINTSZ, HINTSZ, col);
}
}
- if (cursor)
- draw_cursor(fe, ds, GUESS_X(guess, dest->npegs),
- GUESS_Y(guess, dest->npegs));
+ if (cursor) {
+ int x1,y1,x2,y2;
+ x1 = hx + CGAP; y1 = hy + CGAP;
+ x2 = hx + hw - CGAP; y2 = hy + hh - CGAP;
+ draw_line(fe, x1, y1, x2, y1, COL_CURSOR);
+ draw_line(fe, x2, y1, x2, y2, COL_CURSOR);
+ draw_line(fe, x2, y2, x1, y2, COL_CURSOR);
+ draw_line(fe, x1, y2, x1, y1, COL_CURSOR);
+ }
- draw_update(fe, GUESS_X(guess, dest->npegs)-CGAP,
- GUESS_Y(guess, dest->npegs)-CGAP,
- PEGSZ+CGAP*2, PEGSZ+CGAP*2);
+ draw_update(fe, hx, hy, hw, hh);
}
}
/* this info is stored in the game_state already */
guess_redraw(fe, ds, i, state->guesses[i], NULL, -1, 0);
hint_redraw(fe, ds, i, state->guesses[i],
- i == (state->next_go-1) ? 1 : 0, FALSE, COL_EMPTY);
+ i == (state->next_go-1) ? 1 : 0, FALSE, FALSE);
} else if (state->next_go == i) {
/* this is the one we're on; the (incomplete) guess is
* stored in the game_ui. */
ui->holds, ui->display_cur ? ui->peg_cur : -1, 0);
hint_redraw(fe, ds, i, NULL, 1,
ui->display_cur && ui->peg_cur == state->params.npegs,
- ui->markable ? COL_FLASH : COL_EMPTY);
+ ui->markable);
} else {
/* we've not got here yet; it's blank. */
guess_redraw(fe, ds, i, NULL, NULL, -1, 0);
- hint_redraw(fe, ds, i, NULL, 0, FALSE, COL_EMPTY);
+ hint_redraw(fe, ds, i, NULL, 0, FALSE, FALSE);
}
}
return FALSE;
}
-static int game_timing_state(game_state *state)
+static int game_timing_state(game_state *state, game_ui *ui)
{
return TRUE;
}
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,
+ encode_ui,
+ decode_ui,
game_changed_state,
- make_move,
- game_size,
+ interpret_move,
+ execute_move,
+ PEG_PREFER_SZ, game_compute_size, game_set_size,
game_colours,
game_new_drawstate,
game_free_drawstate,
~mdw / sgt / puzzles / blobdiff