d_a_obj_time_stage_bg with a weak function order issue (#78)

include/toBeSorted/time_area_mgr.h

@@ -30,6 +30,7 @@ private:
 };
 
 struct TimeAreaStruct {
+    TimeAreaStruct() : field_0x00(0.0f), field_0x08(0) {}
     TimeAreaStruct(f32 arg) : field_0x00(arg), field_0x08(0) {}
     /* 0x00 */ f32 field_0x00;
     /* 0x04 */ UNKWORD field_0x04;
@@ -39,6 +40,10 @@ struct TimeAreaStruct {
         return fabsf(field_0x00) <= FLT_EPSILON;
     }
 
+    f32 getDistMaybe() {
+        return field_0x00;
+    }
+
     bool check(int, const mVec3_c &, u32, f32, f32);
 };