butterflies: debug overlay layer

src/modules/butterflies/butterflies_overlays.c

@@ -20,6 +20,10 @@ enum action_status bf_grid_overlay_update(const struct cats_configuration *conf,
 
         const cats_dt_coord rows = grid->dimension.rows;
         const cats_dt_coord cols = grid->dimension.cols;
+        int64_t cells_habitat_ok = 0;
+        int64_t cells_excluded = 0;
+        int64_t cells_resource_ok = 0;
+        int64_t cells_habitat_and_resource_ok = 0;
 
         for (cats_dt_coord row = 0; row < rows; row++) {
                 for (cats_dt_coord col = 0; col < cols; col++) {
@@ -28,6 +32,7 @@ enum action_status bf_grid_overlay_update(const struct cats_configuration *conf,
 
                         if (cell_excluded_by_overlay(conf, row, col)) {
                                 data->info_layer[row][col] |= BF_CELL_EXCLUDED;
+                                cells_excluded += 1;
                                 continue;
                         }
 
@@ -35,20 +40,24 @@ enum action_status bf_grid_overlay_update(const struct cats_configuration *conf,
                         if (conf->overlays.overlay[OL_HABITAT_TYPE_CC].enabled &&
                             conf->overlays.habitat_cc->data[row][col] > 0) {
                                 data->info_layer[row][col] |= BF_CELL_HABITAT_OK;
+                                cells_habitat_ok += 1;
                         }
 
                         if (conf->overlays.overlay[OL_RESOURCE].enabled &&
                             conf->overlays.resources->data[row][col] > 0) {
                                 data->info_layer[row][col] |= BF_CELL_RESOURCE_AVAILABLE;
+                                cells_resource_ok += 1;
                         }
 
                         if (data->info_layer[row][col] & BF_CELL_HABITAT_OK &&
                             data->info_layer[row][col] & BF_CELL_RESOURCE_AVAILABLE) {
                                 data->info_layer[row][col] |= BF_CELL_VALID_DISPERSAL_TARGET;
+                                cells_habitat_and_resource_ok += 1;
 
                         }
                 }
         }
-
+        log_message(LOG_INFO, "Overlay update: %ld excluded, %ld habitat ok, %ld resource ok, %ld habitat + resource ok",
+                    cells_excluded, cells_habitat_ok, cells_resource_ok, cells_habitat_and_resource_ok);
         return ACTION_RUN;
 }