feat: indicate allowed placements with color

2 files changed, 26 insertions, 13 deletions

diff --git a/src/board.c b/src/board.c
index 056156c..a09b45c 100644
--- a/src/board.c
+++ b/src/board.c
@@ -30,15 +30,8 @@ int is_allowed_placement(Tile tile, int index, BoardUnit* board) {
 }
 
 int place_tile(Tile tile, int index, BoardUnit* board, int force) {
-  if (!is_center_index(index)) {
-    printf("Not a valid tile index: %i\n", index);
-    return 0;
-  }
-
-  if (!force && !is_allowed_placement(tile, index, board)) {
-    printf("Can not place tile %s (%c)\n", tile.edges, tile.center);
-    return 0;
-  }
+  if (!is_center_index(index)) return 0;
+  if (!force && !is_allowed_placement(tile, index, board)) return 0;
 
   board[index].feature = tile.center;
   for (int i = 0; i < 4; i++) {
diff --git a/src/main.c b/src/main.c
index f1231fa..d3e17b2 100644
--- a/src/main.c
+++ b/src/main.c
@@ -29,33 +29,43 @@ int main() {
   /* initialize curses */
   initscr();
   cbreak();
+  use_default_colors();
+
+  /* colors */
+  start_color();
+  init_pair(1, COLOR_GREEN, COLOR_BLACK);
 
   /* create board window */
   WINDOW* board_box = newwin(BOARD_ROW_UNITS + 2, BOARD_ROW_UNITS + 2, 0, 0);
   WINDOW* board_win = derwin(board_box, BOARD_ROW_UNITS, BOARD_ROW_UNITS, 1, 1);
   box(board_box, 0, 0);
+  mvwaddstr(board_box, 0, 1, "Board");
   wrefresh(board_box);
 
   /* create structures window */
   WINDOW* structures_box = newwin(BOARD_ROW_UNITS + 2, BOARD_ROW_UNITS + 2, 0, BOARD_ROW_UNITS + 3);
   WINDOW* structures_win = derwin(structures_box, BOARD_ROW_UNITS, BOARD_ROW_UNITS, 1, 1);
   box(structures_box, 0, 0);
+  mvwaddstr(structures_box, 0, 1, "Structures");
   wrefresh(structures_box);
 
   /* create messages window */
   WINDOW* messages_box = newwin(40, 60, BOARD_ROW_UNITS + 2, 0);
   WINDOW* messages_win = derwin(messages_box, 40 - 2, 60 - 2, 1, 1);
   box(messages_box, 0, 0);
+  mvwaddstr(messages_box, 0, 1, "Log");
   wrefresh(messages_box);
 
 
   BoardUnit board[BOARD_UNITS];
   initialize_board(board);
 
-  Tile tileset[3] = {
+  Tile tileset[5] = {
     { "RRRR", 'R', 0 },
     { "FCCC", 'C', 0 },
-    { "FFFC", 'C', 0 }
+    { "FFFC", 'C', 0 },
+    { "CCRR", 'C', 0 },
+    { "RFRF", 'R', 0 }
   };
 
   Tile tile = { "FRCR", 'R', 0 };
@@ -74,7 +84,7 @@ int main() {
     wrefresh(structures_win);
 
     /* tile placement */
-    tile = tileset[rand() % 3];
+    tile = tileset[rand() % 5];
     int position = 0;
     BoardUnit board_preview[BOARD_UNITS];
 
@@ -83,16 +93,26 @@ int main() {
         board_preview[i].feature = board[i].feature;
       }
       place_tile(tile, translate_coordinate(position), board_preview, 1);
+
+      int is_allowed = is_allowed_placement(tile, translate_coordinate(position), board);
+
+      if (is_allowed) wattron(board_win, COLOR_PAIR(1));
+      else wattroff(board_win, COLOR_PAIR(1));
+
       draw_board(board_preview, board_win);
       wrefresh(board_win);
 
       input_key = wgetch(board_win);
-      if (input_key == 10) break; /* enter key */
+      if (input_key == 10 && is_allowed) break; /* enter key */
       else if (input_key == 'l') position += 1;
       else if (input_key == 'h') position -= 1;
       else if (input_key == 'j') position += BOARD_WIDTH;
       else if (input_key == 'k') position -= BOARD_WIDTH;
       else if (input_key == 'r') rotate_tile(&tile, 3);
+      else if (input_key == 'q') {
+        endwin();
+        return 0;
+      }
     }
 
     int result = place_tile(tile, translate_coordinate(position), board, 0);