Tents: mark squares as non-tents with {Shift,Control}-cursor keys.

[sgt-puzzles.git] / towers.c

diff --git a/towers.c b/towers.c
index 9c2cdd8e75ab0edfc7ddcf3e21d5797b777e8292..9525adb56b19aec96fb011c78ffd80c24cd6f5ee 100644 (file)
--- a/towers.c
+++ b/towers.c
@@ -114,7 +114,7 @@ static const char *const cluepos[] = {
 struct game_state {
     game_params par;
     struct clues *clues;
-    int *cluesdone;
+    unsigned char *clues_done;
     digit *grid;
     int *pencil;                      /* bitmaps using bits 1<<1..1<<n */
     int completed, cheated;
@@ -882,7 +882,7 @@ static game_state *new_game(midend *me, const game_params *params,
     state->clues->clues = snewn(4*w, int);
     state->clues->immutable = snewn(a, digit);
     state->grid = snewn(a, digit);
-    state->cluesdone = snewn(4*w, int);
+    state->clues_done = snewn(4*w, unsigned char);
     state->pencil = snewn(a, int);
 
     for (i = 0; i < a; i++) {
@@ -891,7 +891,7 @@ static game_state *new_game(midend *me, const game_params *params,
     }
 
     memset(state->clues->immutable, 0, a);
-    memset(state->cluesdone, 0, 4*w*sizeof(int));
+    memset(state->clues_done, 0, 4*w*sizeof(unsigned char));
 
     for (i = 0; i < 4*w; i++) {
        if (i > 0) {
@@ -945,10 +945,10 @@ static game_state *dup_game(const game_state *state)
 
     ret->grid = snewn(a, digit);
     ret->pencil = snewn(a, int);
-    ret->cluesdone = snewn(4*w, int);
+    ret->clues_done = snewn(4*w, unsigned char);
     memcpy(ret->grid, state->grid, a*sizeof(digit));
     memcpy(ret->pencil, state->pencil, a*sizeof(int));
-    memcpy(ret->cluesdone, state->cluesdone, 4*w*sizeof(int));
+    memcpy(ret->clues_done, state->clues_done, 4*w*sizeof(unsigned char));
 
     ret->completed = state->completed;
     ret->cheated = state->cheated;
@@ -960,7 +960,7 @@ static void free_game(game_state *state)
 {
     sfree(state->grid);
     sfree(state->pencil);
-    sfree(state->cluesdone);
+    sfree(state->clues_done);
     if (--state->clues->refcount <= 0) {
        sfree(state->clues->immutable);
        sfree(state->clues->clues);
@@ -1248,7 +1248,8 @@ static int check_errors(const game_state *state, int *errors)
            }
        }
 
-       if (n > clues[i] || (j == w && n < clues[i])) {
+       if (n > clues[i] || (best == w && n < clues[i]) ||
+           (best < w && n == clues[i])) {
            if (errors) {
                int x, y;
                CLUEPOS(x, y, i, w);
@@ -1292,6 +1293,7 @@ static char *interpret_move(const game_state *state, game_ui *ui,
                             int x, int y, int button)
 {
     int w = state->par.w;
+    int shift_or_control = button & (MOD_SHFT | MOD_CTRL);
     int tx, ty;
     char buf[80];
 
@@ -1376,6 +1378,20 @@ static char *interpret_move(const game_state *state, game_ui *ui,
         }
     }
     if (IS_CURSOR_MOVE(button)) {
+        if (shift_or_control) {
+            int x = ui->hx, y = ui->hy;
+            switch (button) {
+            case CURSOR_LEFT:   x = -1; break;
+            case CURSOR_RIGHT:  x =  w; break;
+            case CURSOR_UP:     y = -1; break;
+            case CURSOR_DOWN:   y =  w; break;
+            }
+            if (is_clue(state, x, y)) {
+                sprintf(buf, "%c%d,%d", 'D', x, y);
+                return dupstr(buf);
+            }
+            return NULL;
+        }
         move_cursor(button, &ui->hx, &ui->hy, w, w, 0);
         ui->hshow = ui->hcursor = 1;
         return "";
@@ -1472,7 +1488,7 @@ static game_state *execute_move(const game_state *from, const char *move)
     } else if (move[0] == 'D' && sscanf(move+1, "%d,%d", &x, &y) == 2 &&
                is_clue(from, x, y)) {
         int index = clue_index(from, x, y);
-        ret->cluesdone[index] = !ret->cluesdone[index];
+        ret->clues_done[index] = !ret->clues_done[index];
         return ret;
     }
 
@@ -1781,7 +1797,7 @@ static void game_redraw(drawing *dr, game_drawstate *ds,
 
        if (ds->errtmp[(y+1)*(w+2)+(x+1)])
            tile |= DF_ERROR;
-        else if (state->cluesdone[i])
+        else if (state->clues_done[i])
             tile |= DF_CLUE_DONE;
 
        ds->tiles[(y+1)*(w+2)+(x+1)] = tile;