refactor: remove unused code

3 files changed, 12 insertions, 33 deletions

diff --git a/src/board.c b/src/board.c
index fdafd2d..263e205 100644
--- a/src/board.c
+++ b/src/board.c
@@ -1,17 +1,6 @@
 #include <stdio.h>
 #include "board.h"
 
-void print_board(BoardUnit* board) {
-  for (int row = 0; row < BOARD_ROW_UNITS; row++) {
-    for (int i = 0; i < BOARD_ROW_UNITS; i++) {
-      int index = BOARD_ROW_UNITS * row + i;
-      if (board[index].feature == EMPTY && is_center_index(index)) printf("*");
-      else printf("%c", board[index].feature);
-    }
-    printf("\n");
-  }
-}
-
 void initialize_board(BoardUnit* board) {
   for (int i = 0; i < BOARD_UNITS; i++) {
     board[i].feature = EMPTY;
@@ -30,7 +19,7 @@ int is_allowed_placement(Tile tile, int index, BoardUnit* board) {
   int neighbor_count = 0;
 
   for (int i = 0; i < 4; i++) {
-    char neighbor = board[index + neighbor_increments[i]].feature;
+    char neighbor = board[index + NEIGHBOR_INCREMENTS[i]].feature;
     if (neighbor != EMPTY) {
       if (neighbor != tile.edges[i]) return 0;
       neighbor_count++;
@@ -53,7 +42,7 @@ int place_tile(Tile tile, int index, BoardUnit* board, int force) {
 
   board[index].feature = tile.center;
   for (int i = 0; i < 4; i++) {
-    board[index + neighbor_increments[i]].feature = tile.edges[i];
+    board[index + NEIGHBOR_INCREMENTS[i]].feature = tile.edges[i];
   }
 
   return 1;
@@ -62,7 +51,7 @@ int place_tile(Tile tile, int index, BoardUnit* board, int force) {
 void traverse_structure(int group, int index, BoardUnit* board) {
   board[index].structure_group = group;
   for (int i = 0; i < 4; i++) {
-    int new_unit = index + neighbor_increments[i];
+    int new_unit = index + NEIGHBOR_INCREMENTS[i];
     if (board[new_unit].feature == board[index].feature && board[new_unit].structure_group == 0) {
       traverse_structure(group, new_unit, board);
     }
@@ -99,7 +88,7 @@ int evaluate_structure(int index, BoardUnit* board) {
       int index = translate_coordinate(i * BOARD_WIDTH + j);
       if (board[index].feature != EMPTY) { // Empty tiles doesn't count
         for (int k = 0; k < 4; k++) {
-          if (board[index + neighbor_increments[k]].structure_group == structure_group) {
+          if (board[index + NEIGHBOR_INCREMENTS[k]].structure_group == structure_group) {
             printf("Found at tile %i\n", i * BOARD_WIDTH + j);
             value++;
             break;
diff --git a/src/board.h b/src/board.h
index dc1995a..e0acd1f 100644
--- a/src/board.h
+++ b/src/board.h
@@ -3,15 +3,9 @@
 #define BOARD_UNITS BOARD_ROW_UNITS * BOARD_ROW_UNITS
 
 
-char EMPTY = ' ';
-
-int neighbor_increments[] = {
-  - BOARD_ROW_UNITS,
-    1,
-    BOARD_ROW_UNITS,
-  - 1
-};
-
+/* constants */
+const char EMPTY = ' ';
+const int NEIGHBOR_INCREMENTS[] = { -BOARD_ROW_UNITS, 1, BOARD_ROW_UNITS, -1 };
 
 /* structs */
 typedef struct {
@@ -28,14 +22,11 @@ typedef struct {
 
 /* board */
 void initialize_board(BoardUnit* board);
-void print_board(BoardUnit* board);
-void write_board(BoardUnit* board, char* filename);
-void read_board(BoardUnit* board, char* filename);
-
-/* moves */
-int is_allowed_placement(Tile tile, int index, BoardUnit* board);
 int translate_coordinate(int index);
 int is_center_index(int index);
+
+/* tiles */
+int is_allowed_placement(Tile tile, int index, BoardUnit* board);
 int place_tile(Tile tile, int index, BoardUnit* board, int force);
 
 /* structures */
diff --git a/src/main.c b/src/main.c
index 46ab12f..680b9c3 100644
--- a/src/main.c
+++ b/src/main.c
@@ -20,7 +20,7 @@ void draw_structures(BoardUnit* board, WINDOW* win) {
     for (int i = 0; i < BOARD_ROW_UNITS; i++) {
       int index = BOARD_ROW_UNITS * row + i;
       if (board[index].feature == EMPTY && is_center_index(index)) waddch(win, '*');
-      else waddch(win, board[index].structure_group == 0 ? ' ' : '0' + board[index].structure_group);
+      else waddch(win, board[index].structure_group == 0 ? EMPTY : '0' + board[index].structure_group);
     }
   }
 }
@@ -64,7 +64,6 @@ int main() {
   /* main loop */
   char position[3];
   while (1) {
-
     /* prepare */
     refresh_structure_groups(board);
     wclear(input_win);
@@ -86,7 +85,7 @@ int main() {
     box(input_box, 0, 0);
     mvwaddstr(input_box, 0, 0, "Enter position:");
     wrefresh(input_box);
-    wgetstr(input_win, position);
+    wgetnstr(input_win, position, 3);
 
     int result = place_tile(tile, translate_coordinate(atoi(position)), board, 0);
     if (result) wprintw(messages_win, "Placed tile %s (%c) at position %i\n", tile.edges, tile.center, atoi(position));