X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=flip.c;h=2249698c8a18b6770e00a49b4e7fed16ad2cf28b;hb=3ce69e84cad15844282d691fa03e711c5353c05e;hp=f8b96aebc04b3012b8f46db868d32d8adb99b578;hpb=980880be1f2801b2a69fcc67abc0f5827fd106f2;p=sgt-puzzles.git

diff --git a/flip.c b/flip.c
index f8b96ae..2249698 100644
--- a/flip.c
+++ b/flip.c
@@ -106,7 +106,7 @@ static void free_params(game_params *params)
     sfree(params);
 }
 
-static game_params *dup_params(game_params *params)
+static game_params *dup_params(const game_params *params)
 {
     game_params *ret = snew(game_params);
     *ret = *params;		       /* structure copy */
@@ -131,7 +131,7 @@ static void decode_params(game_params *ret, char const *string)
     }
 }
 
-static char *encode_params(game_params *params, int full)
+static char *encode_params(const game_params *params, int full)
 {
     char data[256];
 
@@ -141,7 +141,7 @@ static char *encode_params(game_params *params, int full)
     return dupstr(data);
 }
 
-static config_item *game_configure(game_params *params)
+static config_item *game_configure(const game_params *params)
 {
     config_item *ret = snewn(4, config_item);
     char buf[80];
@@ -171,7 +171,7 @@ static config_item *game_configure(game_params *params)
     return ret;
 }
 
-static game_params *custom_params(config_item *cfg)
+static game_params *custom_params(const config_item *cfg)
 {
     game_params *ret = snew(game_params);
 
@@ -182,7 +182,7 @@ static game_params *custom_params(config_item *cfg)
     return ret;
 }
 
-static char *validate_params(game_params *params, int full)
+static char *validate_params(const game_params *params, int full)
 {
     if (params->w <= 0 || params->h <= 0)
         return "Width and height must both be greater than zero";
@@ -208,7 +208,7 @@ static char *encode_bitmap(unsigned char *bmp, int len)
     return ret;
 }
 
-static void decode_bitmap(unsigned char *bmp, int len, char *hex)
+static void decode_bitmap(unsigned char *bmp, int len, const char *hex)
 {
     int slen = (len + 3) / 4;
     int i;
@@ -347,7 +347,7 @@ static void addneighbours(tree234 *t, int w, int h, int cx, int cy,
     addsq(t, w, h, cx, cy, x, y+1, matrix);
 }
 
-static char *new_game_desc(game_params *params, random_state *rs,
+static char *new_game_desc(const game_params *params, random_state *rs,
 			   char **aux, int interactive)
 {
     int w = params->w, h = params->h, wh = w * h;
@@ -596,7 +596,7 @@ static char *new_game_desc(game_params *params, random_state *rs,
     return ret;
 }
 
-static char *validate_desc(game_params *params, char *desc)
+static char *validate_desc(const game_params *params, const char *desc)
 {
     int w = params->w, h = params->h, wh = w * h;
     int mlen = (wh*wh+3)/4, glen = (wh+3)/4;
@@ -613,7 +613,8 @@ static char *validate_desc(game_params *params, char *desc)
     return NULL;
 }
 
-static game_state *new_game(midend *me, game_params *params, char *desc)
+static game_state *new_game(midend *me, const game_params *params,
+                            const char *desc)
 {
     int w = params->w, h = params->h, wh = w * h;
     int mlen = (wh*wh+3)/4;
@@ -636,7 +637,7 @@ static game_state *new_game(midend *me, game_params *params, char *desc)
     return state;
 }
 
-static game_state *dup_game(game_state *state)
+static game_state *dup_game(const game_state *state)
 {
     game_state *ret = snew(game_state);
 
@@ -671,8 +672,8 @@ static void rowxor(unsigned char *row1, unsigned char *row2, int len)
 	row1[i] ^= row2[i];
 }
 
-static char *solve_game(game_state *state, game_state *currstate,
-			char *aux, char **error)
+static char *solve_game(const game_state *state, const game_state *currstate,
+                        const char *aux, char **error)
 {
     int w = state->w, h = state->h, wh = w * h;
     unsigned char *equations, *solution, *shortest;
@@ -853,21 +854,56 @@ static char *solve_game(game_state *state, game_state *currstate,
     return ret;
 }
 
-static int game_can_format_as_text_now(game_params *params)
+static int game_can_format_as_text_now(const game_params *params)
 {
     return TRUE;
 }
 
-static char *game_text_format(game_state *state)
+#define RIGHT 1
+#define DOWN gw
+
+static char *game_text_format(const game_state *state)
 {
-    return NULL;
+    int w = state->w, h = state->h, wh = w*h, r, c, dx, dy;
+    int cw = 4, ch = 4, gw = w * cw + 2, gh = h * ch + 1, len = gw * gh;
+    char *board = snewn(len + 1, char);
+
+    memset(board, ' ', len - 1);
+
+    for (r = 0; r < h; ++r) {
+	for (c = 0; c < w; ++c) {
+	    int cell = r*ch*gw + c*cw, center = cell+(ch/2)*DOWN + cw/2*RIGHT;
+	    char flip = (state->grid[r*w + c] & 1) ? '#' : '.';
+	    for (dy = -1 + (r == 0); dy <= 1 - (r == h - 1); ++dy)
+		for (dx = -1 + (c == 0); dx <= 1 - (c == w - 1); ++dx)
+		    if (state->matrix->matrix[(r*w+c)*wh + ((r+dy)*w + c+dx)])
+			board[center + dy*DOWN + dx*RIGHT] = flip;
+	    board[cell] = '+';
+	    for (dx = 1; dx < cw; ++dx) board[cell+dx*RIGHT] = '-';
+	    for (dy = 1; dy < ch; ++dy) board[cell+dy*DOWN] = '|';
+	}
+	board[r*ch*gw + gw - 2] = '+';
+	board[r*ch*gw + gw - 1] = '\n';
+	for (dy = 1; dy < ch; ++dy) {
+	    board[r*ch*gw + gw - 2 + dy*DOWN] = '|';
+	    board[r*ch*gw + gw - 1 + dy*DOWN] = '\n';
+	}
+    }
+    memset(board + len - gw, '-', gw - 2);
+    for (c = 0; c <= w; ++c) board[len - gw + cw*c] = '+';
+    board[len - 1] = '\n';
+    board[len] = '\0';
+    return board;
 }
 
+#undef RIGHT
+#undef DOWN
+
 struct game_ui {
     int cx, cy, cdraw;
 };
 
-static game_ui *new_ui(game_state *state)
+static game_ui *new_ui(const game_state *state)
 {
     game_ui *ui = snew(game_ui);
     ui->cx = ui->cy = ui->cdraw = 0;
@@ -879,17 +915,17 @@ static void free_ui(game_ui *ui)
     sfree(ui);
 }
 
-static char *encode_ui(game_ui *ui)
+static char *encode_ui(const game_ui *ui)
 {
     return NULL;
 }
 
-static void decode_ui(game_ui *ui, char *encoding)
+static void decode_ui(game_ui *ui, const char *encoding)
 {
 }
 
-static void game_changed_state(game_ui *ui, game_state *oldstate,
-                               game_state *newstate)
+static void game_changed_state(game_ui *ui, const game_state *oldstate,
+                               const game_state *newstate)
 {
 }
 
@@ -899,8 +935,9 @@ struct game_drawstate {
     int tilesize;
 };
 
-static char *interpret_move(game_state *state, game_ui *ui, game_drawstate *ds,
-			    int x, int y, int button)
+static char *interpret_move(const game_state *state, game_ui *ui,
+                            const game_drawstate *ds,
+                            int x, int y, int button)
 {
     int w = state->w, h = state->h, wh = w * h;
     char buf[80], *nullret = NULL;
@@ -954,7 +991,7 @@ static char *interpret_move(game_state *state, game_ui *ui, game_drawstate *ds,
     return nullret;
 }
 
-static game_state *execute_move(game_state *from, char *move)
+static game_state *execute_move(const game_state *from, const char *move)
 {
     int w = from->w, h = from->h, wh = w * h;
     game_state *ret;
@@ -1005,8 +1042,8 @@ static game_state *execute_move(game_state *from, char *move)
  * Drawing routines.
  */
 
-static void game_compute_size(game_params *params, int tilesize,
-			      int *x, int *y)
+static void game_compute_size(const game_params *params, int tilesize,
+                              int *x, int *y)
 {
     /* Ick: fake up `ds->tilesize' for macro expansion purposes */
     struct { int tilesize; } ads, *ds = &ads;
@@ -1017,7 +1054,7 @@ static void game_compute_size(game_params *params, int tilesize,
 }
 
 static void game_set_size(drawing *dr, game_drawstate *ds,
-			  game_params *params, int tilesize)
+                          const game_params *params, int tilesize)
 {
     ds->tilesize = tilesize;
 }
@@ -1056,7 +1093,7 @@ static float *game_colours(frontend *fe, int *ncolours)
     return ret;
 }
 
-static game_drawstate *game_new_drawstate(drawing *dr, game_state *state)
+static game_drawstate *game_new_drawstate(drawing *dr, const game_state *state)
 {
     struct game_drawstate *ds = snew(struct game_drawstate);
     int i;
@@ -1078,9 +1115,8 @@ static void game_free_drawstate(drawing *dr, game_drawstate *ds)
     sfree(ds);
 }
 
-static void draw_tile(drawing *dr, game_drawstate *ds,
-		      game_state *state, int x, int y, int tile, int anim,
-		      float animtime)
+static void draw_tile(drawing *dr, game_drawstate *ds, const game_state *state,
+                      int x, int y, int tile, int anim, float animtime)
 {
     int w = ds->w, h = ds->h, wh = w * h;
     int bx = x * TILE_SIZE + BORDER, by = y * TILE_SIZE + BORDER;
@@ -1155,9 +1191,10 @@ static void draw_tile(drawing *dr, game_drawstate *ds,
     draw_update(dr, bx+1, by+1, TILE_SIZE-1, TILE_SIZE-1);
 }
 
-static void game_redraw(drawing *dr, game_drawstate *ds, game_state *oldstate,
-			game_state *state, int dir, game_ui *ui,
-			float animtime, float flashtime)
+static void game_redraw(drawing *dr, game_drawstate *ds,
+                        const game_state *oldstate, const game_state *state,
+                        int dir, const game_ui *ui,
+                        float animtime, float flashtime)
 {
     int w = ds->w, h = ds->h, wh = w * h;
     int i, flashframe;
@@ -1236,14 +1273,14 @@ static void game_redraw(drawing *dr, game_drawstate *ds, game_state *oldstate,
     }
 }
 
-static float game_anim_length(game_state *oldstate, game_state *newstate,
-			      int dir, game_ui *ui)
+static float game_anim_length(const game_state *oldstate,
+                              const game_state *newstate, int dir, game_ui *ui)
 {
     return ANIM_TIME;
 }
 
-static float game_flash_length(game_state *oldstate, game_state *newstate,
-			       int dir, game_ui *ui)
+static float game_flash_length(const game_state *oldstate,
+                               const game_state *newstate, int dir, game_ui *ui)
 {
     if (!oldstate->completed && newstate->completed)
         return FLASH_FRAME * (max((newstate->w+1)/2, (newstate->h+1)/2)+1);
@@ -1251,21 +1288,21 @@ static float game_flash_length(game_state *oldstate, game_state *newstate,
     return 0.0F;
 }
 
-static int game_is_solved(game_state *state)
+static int game_status(const game_state *state)
 {
-    return state->completed;
+    return state->completed ? +1 : 0;
 }
 
-static int game_timing_state(game_state *state, game_ui *ui)
+static int game_timing_state(const game_state *state, game_ui *ui)
 {
     return TRUE;
 }
 
-static void game_print_size(game_params *params, float *x, float *y)
+static void game_print_size(const game_params *params, float *x, float *y)
 {
 }
 
-static void game_print(drawing *dr, game_state *state, int tilesize)
+static void game_print(drawing *dr, const game_state *state, int tilesize)
 {
 }
 
@@ -1289,7 +1326,7 @@ const struct game thegame = {
     dup_game,
     free_game,
     TRUE, solve_game,
-    FALSE, game_can_format_as_text_now, game_text_format,
+    TRUE, game_can_format_as_text_now, game_text_format,
     new_ui,
     free_ui,
     encode_ui,
@@ -1304,7 +1341,7 @@ const struct game thegame = {
     game_redraw,
     game_anim_length,
     game_flash_length,
-    game_is_solved,
+    game_status,
     FALSE, FALSE, game_print_size, game_print,
     TRUE,			       /* wants_statusbar */
     FALSE, game_timing_state,