Add several features like
+ extras page + shield energy + construction time calculation + hostname resolving + comments + some others I cannot remember [Sorry for the bundled commit, my ISP went down again.]
This commit is contained in:
interp
parent
9816e1c1ed
commit
4c3bde22fa
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@ -6,7 +6,9 @@
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receiving
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define-record-types
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(subset srfi-13 (string-downcase string-join))
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(subset srfi-1 (find filter-map split-at)))
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(subset srfi-1 (find filter-map split-at remove))
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sunet-utilities
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httpd-request)
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(begin
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;;; Spaceship components
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@ -14,6 +16,7 @@
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;;; Arms (Photontorpedos, Phaser)
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;;; Shields
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;;; Drive (Impuls, Warp)
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;;; Extras (Double Casing, Trans Warp Drive, etc.)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; DATA
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@ -31,6 +34,9 @@
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(extras ship-data-extras)
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(build-time ship-data-build-time))
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;;; This are the orderable ships with their data. The following
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;;; procedures will refer to this list to get the data for a ship
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;;; class.
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(define ships
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(map (lambda (data)
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(apply make-ship-data data))
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@ -63,11 +69,14 @@
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10))
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))
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;;; All orderable classes extracted from ship data list.
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(define classes (map ship-data-class ships))
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;;; All orderable drives.
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(define drives
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'("Impuls" "Warp"))
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;;; All orderable arm types.
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(define arm-types
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'((7 . "Phaser Type VII") (8 . "Phaser Type VIII")
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(9 . "Phaser Type IX") (10 . "Phaser Type X")
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@ -75,21 +84,25 @@
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(torpedo2 . "Photon-Torpedo-System Class 2")
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(torpedo-M/AM . "Photonen-Torpedo-System M/AM")))
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;;; All orderable extras. The ship data contains a list of extras a
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;;; ship class may have.
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(define extras
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'((double-casing . "double casing")
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(tractor . "tractor ray")
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(shuttle-ramp . "shuttle ramp")
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(transwarp . "trans warp drive (experimental)")
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(discus . "detachable discus section")
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(wide-angle-firing . "300° fire angle")
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(transporter . "extra transporters (+35)")
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'((double-casing . "Double Casing")
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(tractor . "Tractor Ray")
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(shuttle-ramp . "Shuttle Ramp")
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(transwarp . "Trans Warp Drive (experimental)")
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(discus . "Detachable Discus Section")
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(wide-angle-firing . "300° Fire Angle")
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(transporter . "Extra Transporters (+35)")
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(captains-yacht . "Captain's Yacht")
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(life-maintenance . "extended life maintenance system")
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(life-maintenance . "Extended Life Maintenance System (ELMS)")
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))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Calculation
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;;; Main entry point. Shows a welcome message, and invites to order a
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;;; spaceship.
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(define (main req . update-text+class+armed?+shields?+drive)
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(let-optionals update-text+class+armed?+shields?+drive
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((update-text #f)
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@ -121,94 +134,140 @@
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(else
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(specify-components req #f class armed? shields? drive))))))
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;;; Step 2ff: Let the customer specify the crew size, the arming, the
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;;; shields and the extras, showing a result page at the end.
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(define (specify-components req update-text class armed? shields? drive)
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(receive (size med-beds)
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(get-size req class)
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(order-page
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class
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(and armed? (get-armed req class))
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(and shields? (get-shields req class))
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drive
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size
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med-beds)))
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(receive (weapons energy shield)
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(get-armed+shields req class armed? shields?)
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(order-page req
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class
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weapons energy
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shield
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drive
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size
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med-beds
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(get-extras req class)))))
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(define (get-armed req class . maybe-update-text+weapons+energy)
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(let-optionals maybe-update-text+weapons+energy
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;;; Ask the customer about details for the arming and the shield of
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;;; his spaceship. The selectable components are taken from the ship
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;;; data list.
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(define (get-armed+shields req class armed? shields? .
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maybe-update-text+weapons+energy+shield)
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(let-optionals maybe-update-text+weapons+energy+shield
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((update-text #f)
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(def-weapons #f)
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(def-energy #f))
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(format #t "1~a, ~a, ~a~%" update-text def-weapons def-energy)
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(let* ((checkboxes+text
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(map (lambda (type)
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(let ((text (cdr (assoc type arm-types))))
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(cons (make-checkbox-input-field
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(and def-weapons (member? text def-weapons))
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text)
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text)))
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(ship-data-arm-types (ship-ref class))))
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(energy-input (if def-energy
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(make-number-input-field def-energy)
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(make-number-input-field)))
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(def-energy #f)
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(def-shield #f))
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(let* ((checkboxes+text
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(and armed?
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(map (lambda (type)
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(let ((text (cdr (assoc type arm-types))))
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(cons (make-checkbox-input-field
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(and def-weapons (member? text def-weapons))
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text)
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text)))
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(ship-data-arm-types (ship-ref class)))))
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(energy-input (and armed?
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(if def-energy
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(make-number-input-field def-energy)
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(make-number-input-field))))
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(shield-input (and shields?
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(if def-shield
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(make-number-input-field def-shield)
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(make-number-input-field))))
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(req (send-html/suspend
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(lambda (new-url)
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(generate-armed-page new-url update-text
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checkboxes+text energy-input))))
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(generate-armed+shield-page new-url update-text
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checkboxes+text energy-input
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shield-input))))
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(bindings (get-bindings req))
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(weapons (filter-map (lambda (checkbox+text)
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(input-field-value (car checkbox+text) bindings))
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checkboxes+text))
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(energy (input-field-value energy-input bindings)))
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(cond
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((null? weapons)
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(confirm-no-weapons req class))
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((or (not energy)
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(<= energy 0))
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(get-armed req class positive-energy weapons energy))
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(else
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(let ((max-energy (ship-data-max-arms (ship-ref class))))
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(if (<= energy max-energy)
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(cons weapons energy)
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(get-armed req class (energy-boundary class max-energy)
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weapons energy))))))))
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(weapons (and armed?
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(filter-map (lambda (checkbox+text)
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(input-field-value (car checkbox+text) bindings))
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checkboxes+text)))
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(energy (and armed?
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(input-field-value energy-input bindings)))
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(shield (and shields?
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(input-field-value shield-input bindings)))
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(complains
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(remove not
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(list
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(and armed?
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(null? weapons)
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need-weapons)
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(and armed?
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(check-bounded-number-field class energy positive-energy
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ship-data-max-arms
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arms-boundary))
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(and shields?
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(check-bounded-number-field class shield positive-shield
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ship-data-max-shield
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shield-boundary))))))
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(if (null? complains)
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(values weapons energy shield)
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(get-armed+shields req class armed? shields?
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`(p ,@(map (lambda (complain) `(,complain (br)))
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complains))
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weapons energy shield)))))
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(define (confirm-no-weapons req class)
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(let* ((submit-yes (make-submit-button "Yes, I am."))
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(submit-no (make-submit-button "No, let me reconsider."))
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;;; Ask the customer about extras he want for his ship. The selectable
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;;; items are taken from the ship data list.
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(define (get-extras req class)
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(let* ((checkboxes+text (map (lambda (extra)
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(cons (make-checkbox-input-field extra)
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(cdr (assoc extra extras))))
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(ship-data-extras (ship-ref class))))
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(req (send-html/suspend
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(lambda (new-url)
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(generate-confirm-no-weapons new-url class
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submit-yes submit-no))))
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(generate-extras-page new-url class checkboxes+text))))
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(bindings (get-bindings req)))
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(if (input-field-binding submit-yes bindings)
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#f
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(get-armed req class "Select at least one weapon."))))
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(define (get-shields req class . maybe-update-text)
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(let-optionals maybe-update-text
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((update-text #f))
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"nothing-done-yet"))
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(filter-map (lambda (checkbox+text)
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(and (input-field-value (car checkbox+text) bindings)
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(cdr checkbox+text)))
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checkboxes+text)))
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(define (order-page class armed shields drive size med-beds)
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;;; Show the selected components of the customers ship and ask him for
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;;; ordering the whole thing (without telling him, how long this will
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;;; take, of course ;-) )
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(define (order-page req class weapons arms-energy shield-energy drive
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size med-beds extras)
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(send-html/suspend
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(lambda (new-url)
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(generate-order-page new-url class armed shields drive size med-beds)))
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(generate-order-page new-url class weapons arms-energy
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shield-energy drive size med-beds
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extras)))
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(send-html/finish
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(generate-finish-page (calculate-build-time class armed shields drive size))))
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(generate-finish-page (calculate-build-time class weapons arms-energy
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shield-energy drive size
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extras)
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req)))
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(define (calculate-build-time class armed shields drive size)
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;;; This returns the number of months that are probably necessary to
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;;; build the ship. The data are taken from experience of the last
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;;; five years :-)
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(define (calculate-build-time class weapons arms-energy shield-energy
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drive size extras)
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(+ (ship-data-build-time (ship-ref class))
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(if armed
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(+ (length (car armed))
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(if (> (cdr armed) 40000) 2 1))
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(if weapons
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(+ (length weapons)
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(if (> arms-energy 40000) 2 1))
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0)
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(if shields
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1
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(if shield-energy
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(if (> shield-energy 2200000)
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3
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2)
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0)
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4 ;; for impulse drive
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(if (string=? drive "Warp") 2 0) ;; extra for warp drive
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(if (> size 300) 3 2) ;; This includes the med-beds.
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4 ; for impulse drive
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(if (string=? drive "Warp") 2 0) ; extra for warp drive
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(if (> size 300) 3 2) ; This includes the med-beds.
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(length extras)
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))
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;;; This asks the customer to specify how many crew members his ship
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;;; will have. We only check that there is at least one crew member
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;;; and the maximum crew member for a class is not exceeded.
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(define (get-size req class . maybe-update-text)
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(let* ((update-text (:optional maybe-update-text #f))
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(size-input (make-number-input-field))
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@ -230,9 +289,14 @@
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Page and text generating
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;;; Title of each HTML page.
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(define (make-title)
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'(title "Spaceship Builder"))
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;;; The following procedure do the actual HTML composing for the
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;;; different steps. Nothing exciting here.
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;;; Main page HTML.
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(define (generate-main-page new-url update-text
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class-radios drive-radios
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armed-checkbox shield-checkbox)
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@ -241,7 +305,6 @@
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(body
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(h1 "Welcome to the Spaceship Builder Web Site!")
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(p "Here you can build your own space ship.")
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(p "Please note that this site is currently under construction. You cannot specify much details.")
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(h2 "Step 1 -- Selecting components")
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,(and update-text `(font (@ (color "red")) ,update-text))
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(servlet-form ,new-url
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@ -258,6 +321,7 @@
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(tr))
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,(make-submit-button "Submit choices")))))
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;;; Size page HTML.
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(define (generate-size-page new-url update-text class size-input)
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`(html
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,(make-title)
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@ -275,54 +339,75 @@ fullfill UFP Spaceship Crew's Rights Act 023/1000285.0/AB")
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(td "people"))
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(tr (td ,(make-submit-button))))))))
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;;; Text displayed if crew size is too big for the spaceship's class.
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(define (complain-size class size)
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(format #f "Spaceships of the ~a class can only have
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up to ~a crew members. Please adjust the selected size or choose another
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spaceship class" class size))
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;;; Text displayed if size is not positive.
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(define positive-size
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"According to UFP Spaceship Crew Consistence Act
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025/100030.2/BX there must be at least one person on each spaceship. Thus, please
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specify a positive number.")
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(define (generate-armed-page new-url update-text
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checkboxes+text energy-input)
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(format #t "2~%")
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;;; HTML page generator for Step 3 and 4: Arming and shields.
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;;; Shows the possible arming for selection and asks about the amount
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;;; of energy for arming and shields.
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(define (generate-armed+shield-page new-url update-text
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checkboxes+text energy-input
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shield-input)
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`(html
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,(make-title)
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(body
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(h2 "Step 3 -- Specify arming")
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(p "Please select one or more arm types for your ship and amount of energy you want to spent for it or them, respectively.")
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,(print-update update-text)
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(servlet-form ,new-url
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GET
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(p
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(table ,@(map (lambda (checkbox+text)
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`(tr (td ,(car checkbox+text))
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(td ,(cdr checkbox+text))))
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checkboxes+text)))
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(p
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(table (tr (td "Use") (td ,energy-input) (td "TW for weapons."))))
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,(if (and checkboxes+text energy-input)
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`((h2 "Step 3 -- Specify arming")
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(p "Please select one or more arm types for your ship and amount of energy you want to spent for it or them, respectively.")
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,(print-update update-text)
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(p
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(table ,@(map (lambda (checkbox+text)
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`(tr (td ,(car checkbox+text))
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(td ,(cdr checkbox+text))))
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checkboxes+text)))
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(p
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(table (tr (td "Use") (td ,energy-input) (td "TW for weapons.")))))
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'(h2 "Step 3 -- Done: No Arming"))
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,(if shield-input
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`((h2 "Step 4 -- Specify shields")
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(p "Please specify the amount of energy you want to spent for your shields:")
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(table (tr (td ,shield-input) (td "TJ"))))
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'(h2 "Step 4 -- Done: No shields"))
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,(make-submit-button "OK")))))
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(define (generate-confirm-no-weapons new-url class submit-yes submit-no)
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`(html
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,(make-title)
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(body
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(h2 "Confirm Step 3 -- Specify arming")
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(p "Are you sure that you don't want any weapons for you ship of class "
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,class "?")
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(servlet-form ,new-url
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GET
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(table (tr (td ,submit-yes) (td ,submit-no)))))))
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;;; Text displayed, if arms' energy is not positive.
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(define positive-energy
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"Please specify a positive number for the amount of arms energy.")
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(define positive-energy "Please specify a positive number for the amount of energy")
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;;; Text displayed if shield's energy is not positive.
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(define positive-shield
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"Please specify a positive number for the amount of shield energy.")
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(define (energy-boundary class max-energy)
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(format #f "Spaceships of class ~a cannot spent more than ~a TW for their arming."
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;;; Text displayed if no weapons are selected, though the customer
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;;; wished to have an armed spaceship.
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(define need-weapons
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"Please specify at least one weapon or turn back to main selection page and deselect arming.")
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;;; Text displayed if arms' energy is too high for the spaceship class.
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(define (arms-boundary class max-energy)
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(format #f "Spaceships of class ~a cannot spend more than ~a TW for their arming."
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class max-energy))
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(define (generate-order-page new-url class armed shields drive size med-beds)
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;;; Text displayed if shield's energy is too high for the spaceship class.
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(define (shield-boundary class max-shield)
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(format #f "Spaceships of class ~a cannot spend more than ~a TJ for their shields."
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class max-shield))
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;;; HTML page generator for the summary (order) page.
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;;; Shows alle the details chosen for construction.
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(define (generate-order-page new-url class weapons arms-energy
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shield-energy drive size med-beds extras)
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`(html ,(make-title)
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(body
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(h2 "Ordering")
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@ -331,35 +416,64 @@ specify a positive number.")
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(li "Class \"" ,class "\"")
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(li ,size " crew members")
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(li ,med-beds " treatment beds")
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(li ,(if armed
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(let ((weapons (car armed))
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(energy (cdr armed)))
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(format #f "Armed with ~a, powered with ~a TW"
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(text-enumerate weapons) energy))
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(li ,(if weapons
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(format #f "Armed with ~a, powered with ~a TW"
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(text-enumerate weapons) arms-energy)
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"No arms"))
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(li ,(if shields
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(list shields " shields")
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(li ,(if shield-energy
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(format #f "~a TJ of shield energy" shield-energy)
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"No shields"))
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(li ,drive " drive"))
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(li ,drive " drive")
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,@(map (lambda (extra-text)
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`(li ,extra-text))
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extras))
|
||||
(servlet-form ,new-url
|
||||
GET
|
||||
POST
|
||||
,(make-submit-button "Order now")))))
|
||||
|
||||
(define (generate-finish-page months)
|
||||
;;; HTML page generator for the extras page.
|
||||
;;; Shows a list of possible extras of this spaceship class for selection.
|
||||
(define (generate-extras-page new-url class checkboxes+text)
|
||||
`(html
|
||||
,(make-title)
|
||||
(body
|
||||
(h2 "Step 5 -- Extras")
|
||||
(p "Select one or more extras that are available for
|
||||
spaceships of class " ,class)
|
||||
(servlet-form ,new-url
|
||||
GET
|
||||
(table ,@(map (lambda (checkbox+text)
|
||||
`(tr (td ,(car checkbox+text))
|
||||
(td ,(cdr checkbox+text))))
|
||||
checkboxes+text))
|
||||
,(make-submit-button "OK")))))
|
||||
|
||||
;;; HTML page generator.
|
||||
;;; Shows the final page with a "Thank you" and an estimate for the
|
||||
;;; construction time. Furthermore, it shows the customers host-name
|
||||
;;; or its IP-adress.
|
||||
(define (generate-finish-page months req)
|
||||
`(html ,(make-title)
|
||||
(body (h2 "Ordered")
|
||||
(p "Thank you for your ordering.")
|
||||
(p "Your order has been registered.
|
||||
We will contact you as soon as the ship is built.")
|
||||
(p "Your order has been registered. "
|
||||
"We will contact you ("
|
||||
,(host-name-or-ip (socket-remote-address (request:socket req)))
|
||||
") as soon as the ship is built.")
|
||||
(p "This will take about " ,months " months."))))
|
||||
|
||||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||||
;; Helping functions
|
||||
|
||||
;;; Creates HTML-table rows, putting a radio in front of a text.
|
||||
(define (table-radios radios texts)
|
||||
(map (lambda (radio text)
|
||||
`(tr (td ,radio) (td ,text)))
|
||||
radios texts))
|
||||
|
||||
;;; Adds the 'checked attribute to a radio button, if its value
|
||||
;;; (stored in LIST) equals to CHECK-THIS. With this, the selected
|
||||
;;; value of a radio list can be restored if the page is redisplayed.
|
||||
(define (checked-radio list check-this)
|
||||
(map (lambda (elem)
|
||||
(if (equal? elem check-this)
|
||||
|
|
@ -367,16 +481,24 @@ We will contact you as soon as the ship is built.")
|
|||
elem))
|
||||
list))
|
||||
|
||||
;;; Returns the ship-data structure for the class of name NAME.
|
||||
(define (ship-ref name)
|
||||
(find (lambda (ship) (string=? (ship-data-class ship) name))
|
||||
ships))
|
||||
|
||||
;;; "Prints" UPDATE-TEXT in red color, i.e. in an HTML paragraph
|
||||
;;; block.
|
||||
(define (print-update update-text)
|
||||
`(p ,(and update-text `(font (@ (color "red")) ,update-text))))
|
||||
|
||||
;;; Same as R5RS member, except that it returns either #t or #f.
|
||||
(define (member? thing list)
|
||||
(if (member thing list) #t #f))
|
||||
|
||||
;;; Makes an enumeration of the strings in TEXT-LIST:
|
||||
;;; (text-enumerate '("John", "Bill", "Juliet")
|
||||
;;; => "John, Bill and Juliet"
|
||||
;;; with reasonable results if the list's length is smaller than 2.
|
||||
(define (text-enumerate text-list)
|
||||
(let ((len (length text-list)))
|
||||
(case len
|
||||
|
|
@ -390,5 +512,16 @@ We will contact you as soon as the ship is built.")
|
|||
" and "
|
||||
(car last)))))))
|
||||
|
||||
;;; Does a check on the value of a number-input-field. Abstraction
|
||||
;;; over two cases occured above. Best explained by the use above.
|
||||
(define (check-bounded-number-field class input positiv selector boundary)
|
||||
(if (or (not input)
|
||||
(<= input 0))
|
||||
positiv
|
||||
(let ((max (selector (ship-ref class))))
|
||||
(if (<= input max)
|
||||
#f
|
||||
(boundary class max)))))
|
||||
|
||||
))
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue