fix bug.

armor/src/armor_finder/send_target/send_target.cpp

@@ -44,7 +44,7 @@ static bool sendTarget(Serial &serial, double x, double y, double z, uint16_t sh
 bool ArmorFinder::sendBoxPosition(uint16_t shoot_delay) {
     if (target_box.rect == cv::Rect2d()) return false;
     if (shoot_delay) {
-        LOGM(STR_CTR(WORD_BLUE, "shoot after %dms"), shoot_delay);
+        LOGM(STR_CTR(WORD_BLUE, "next box %dms"), shoot_delay);
     }
     auto rect = target_box.rect;
     double dx = rect.x + rect.width / 2 - IMAGE_CENTER_X;

armor/src/armor_finder/tracking_state/tracking_state.cpp

@@ -62,5 +62,6 @@ bool ArmorFinder::stateTrackingTarget(cv::Mat &src) {
         target_box.rect = pos;
         target_box.light_blobs.clear();
     }
+    last_box = target_box;
     return true;
 }