Remove unused variable and fix dereference in thread task

src/game_core.c

@@ -78,7 +78,7 @@ Board process_game(Board board) {
 
 void* process_chunk(void* arg) {
     ThreadArgs* ta = (ThreadArgs*)arg;
-    Board board = (*ta[0].board);
+    Board board = *ta->board;
     size_t x, y;
     uint8_t count = 0;
     for (y = ta->y_start; y < ta->y_end; y++) {
@@ -129,3 +129,4 @@ Board process_game_mt(ThreadArgs* ta,
     board.pixels = tmp;
     return board;
 }
+

src/main.c

@@ -24,7 +24,6 @@ const int FRAME_DELAY = 1000 / FPS;
 int main(int argc, char* argv[]) {
     pthread_t* threads = NULL;
     int n_threads = sysconf(_SC_NPROCESSORS_ONLN);
-    size_t n_chunk = 0;
     ThreadArgs* ta = NULL;
     t_flags flags = process_args(argc, argv);
     printf("G : %d , M : %d (n : %d)\n", flags.graphical, flags.multithread,
@@ -35,7 +34,6 @@ int main(int argc, char* argv[]) {
     if (flags.multithread) {
         ta = make_chunk(&b, (int)n_threads);
         threads = malloc(sizeof(pthread_t) * n_threads);
-        n_chunk = b.height / n_threads;
     }
     TimeFrameHeap* timeframe = NULL;
 
@@ -122,3 +120,4 @@ int main(int argc, char* argv[]) {
     free(threads);
     return EXIT_SUCCESS;
 }
+