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Allow slide clicker to move the player

This commit is contained in:
Tony Garnock-Jones 2016-03-31 12:45:16 -04:00
parent 1e563ee1ec
commit b8d9ac0d4f
1 changed files with 10 additions and 4 deletions
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14
examples/platformer/main.rkt
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@ -669,16 +669,19 @@
key-pressed-projection)])
'()))
(define (any-key-down? s . ks)
(for/or [(k ks)] (set-member? (player-state-keys-down s) k)))
(define ((maybe-jump s0) s)
(transition s
(and (not (set-member? (player-state-keys-down s0) #\space))
(set-member? (player-state-keys-down s) #\space)
(and (not (any-key-down? s0 #\space #\.))
(any-key-down? s #\space #\.)
(message (jump-request player-id)))))
(define (update-impulse s)
(let* ((h-impulse 0)
(h-impulse (+ h-impulse (if (set-member? (player-state-keys-down s) 'left) -1 0)))
(h-impulse (+ h-impulse (if (set-member? (player-state-keys-down s) 'right) 1 0))))
(h-impulse (+ h-impulse (if (any-key-down? s 'left 'prior) -1 0)))
(h-impulse (+ h-impulse (if (any-key-down? s 'right 'next) 1 0))))
(transition s
(patch-seq (retract (impulse player-id ?))
(assert (impulse player-id (vector h-impulse 0)))))))
@ -710,6 +713,9 @@
(sub (key-pressed 'left) #:meta-level 2)
(sub (key-pressed 'right) #:meta-level 2)
(sub (key-pressed #\space) #:meta-level 2)
(sub (key-pressed 'prior) #:meta-level 2)
(sub (key-pressed 'next) #:meta-level 2)
(sub (key-pressed #\.) #:meta-level 2)
(sprite-update initial-player-state)
)))