Pipeline controller: plan 2 (hard +, error +50 %), backlog throttle, 2 trajectory workers, stop rules, summaries every 50; budget reserve

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tasks_gen/train/G1019/reference/bowling_fee.clas.abap

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+CLASS {{p}}bowling_fee DEFINITION PUBLIC FINAL CREATE PUBLIC.
+  PUBLIC SECTION.
+    INTERFACES {{p}}if_bowling_fee.
+
+  PRIVATE SECTION.
+    TYPES ty_rate TYPE p LENGTH 5 DECIMALS 2.
+
+    CONSTANTS:
+      c_lane_fee  TYPE {{p}}if_bowling_fee=>ty_fee VALUE '12.00',
+      c_shoe_fee  TYPE {{p}}if_bowling_fee=>ty_fee VALUE '2.50',
+      c_group_dis TYPE ty_rate VALUE '0.10',
+      c_large_dis TYPE ty_rate VALUE '0.20'.
+
+    METHODS lane_fee
+      IMPORTING iv_lanes      TYPE i
+                iv_hours      TYPE i
+      RETURNING VALUE(rv_fee) TYPE {{p}}if_bowling_fee=>ty_fee.
+
+    METHODS discount_rate
+      IMPORTING iv_lanes       TYPE i
+                iv_hours       TYPE i
+      RETURNING VALUE(rv_rate) TYPE ty_rate.
+
+    METHODS shoe_rental
+      IMPORTING iv_shoes      TYPE i
+      RETURNING VALUE(rv_fee) TYPE {{p}}if_bowling_fee=>ty_fee.
+ENDCLASS.
+
+
+CLASS {{p}}bowling_fee IMPLEMENTATION.
+  METHOD {{p}}if_bowling_fee~calculate_fee.
+    DATA(lv_lane_fee) = lane_fee( iv_lanes = iv_lanes iv_hours = iv_hours ).
+    lv_lane_fee = lv_lane_fee * ( 1 - discount_rate( iv_lanes = iv_lanes iv_hours = iv_hours ) ).
+    rv_fee = lv_lane_fee + shoe_rental( iv_shoes ).
+  ENDMETHOD.
+
+  METHOD lane_fee.
+    IF iv_lanes <= 0 OR iv_hours <= 0.
+      RETURN.
+    ENDIF.
+    rv_fee = c_lane_fee * iv_lanes * iv_hours.
+  ENDMETHOD.
+
+  METHOD discount_rate.
+    IF iv_lanes > 4 AND iv_hours > 3.
+      rv_rate = c_large_dis.
+    ELSEIF iv_lanes > 4.
+      rv_rate = c_group_dis.
+    ELSEIF iv_hours > 3.
+      rv_rate = c_large_dis.
+    ENDIF.
+  ENDMETHOD.
+
+  METHOD shoe_rental.
+    IF iv_shoes <= 0.
+      RETURN.
+    ENDIF.
+    rv_fee = c_shoe_fee * iv_shoes.
+  ENDMETHOD.
+ENDCLASS.