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syndicate-2017
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This commit is contained in:
Tony Garnock-Jones 2016-09-02 11:32:10 +01:00
parent 82e4b64168
commit 01013ea372
1 changed files with 19 additions and 0 deletions
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19
racket/syndicate-gl/examples/basic.rkt
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@ -45,6 +45,23 @@
plain-image))))
(on-start (draggable-mixin touching? x y))))
(define (tooltip touching? x y w h label-string)
(define label-text (text label-string 22 "black"))
(define label (overlay label-text (empty-scene (+ (image-width label-text) 10)
(+ (image-height label-text) 10))))
(define (pos)
(define v (- (x) (image-width label) 10))
(if (negative? v)
(+ (x) w 10)
v))
(react (assert #:when (touching?)
(outbound (simple-sprite -10
(pos)
(+ (y) (* 1/2 h))
(image-width label)
(image-height label)
label)))))
(define (spawn-player-avatar)
(local-require 2htdp/planetcute)
(define CC character-cat-girl)
@ -61,6 +78,8 @@
(define/query-value touching? #f (inbound (touching 'player)) #t)
(on-start (draggable-mixin touching? x y))
(on-start (tooltip touching? x y (image-width CC) (image-height CC) "The Player"))
(on (message (inbound (frame-event _ _ $elapsed-ms _)))
(define-values (old-x old-y) (values (x) (y)))
(define distance (* 0.360 elapsed-ms))