66 lines
2.1 KiB
Scheme
66 lines
2.1 KiB
Scheme
(define-module (gib-gab-gob game)
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#:use-module (fibers)
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#:use-module (fibers channels)
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#:use-module (goblins)
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#:use-module (goblins vat)
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#:use-module (goblins actor-lib cell)
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#:use-module (goblins actor-lib methods)
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#:use-module (goblins actor-lib sealers)
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#:use-module (gib-gab-gob board)
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#:export (^ggg-controller))
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;; Actual Tic Tac Toe game
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(define (^ggg-controller bcom board state+ first? peer)
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(define mark (if first? 'x 'o))
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(define peer-mark (if first? 'o 'x))
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(define %my-turn? (spawn ^cell first?))
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(define (%state)
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(cond
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((board-winner? board mark) 'won)
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((board-winner? board peer-mark) 'lost)
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(else 'play)))
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(define (signal-turn)
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(format #t "signal-turn start\n")
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(syscaller-free-fiber (λ () (put-message state+ (%state))))
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(format #t "signal-turn end\n")
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#f)
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(define (switch-turn!)
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(let ((new-turn (not ($ %my-turn?))))
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($ %my-turn? new-turn)
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(when new-turn (signal-turn))
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#f))
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(when first? (signal-turn))
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(methods
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;; The peer is telling us about the turn it took.
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[(peer-turn! x y)
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(if (not ($ %my-turn?))
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(begin
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(board-choose! board peer-mark x y)
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(switch-turn!)
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(format #t "I, the peer, finish my turn.\n"))
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(error "It's my turn!"))]
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;; TODO: These need to go somewhere else so the peer can't move or init for us!
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[(try-transition) 'playing]
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[(my-turn?) ($ %my-turn?)]
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[(my-mark) mark]
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[(state) (%state)]
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[(initialize!)
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(on (<- peer 'try-transition)
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(λ (status)
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(format #t "Peer's status: ~a\n" status)
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status) #:promise? #t)]
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[(my-turn! x y)
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(format #t "start my-turn!\n")
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(if ($ %my-turn?)
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(begin
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(board-assert-vacant board x y)
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(format #t "tell peer about it\n")
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(on (<- peer 'peer-turn! x y)
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(λ (_)
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(format #t "peer promise resolve, then switch and return\n")
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(board-choose! board mark x y)
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(switch-turn!)
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(%state))
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#:promise? #t))
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(error "It's not my turn."))]))
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