50 lines
2.3 KiB
Racket
50 lines
2.3 KiB
Racket
#lang racket
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(require prospect)
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(require 2htdp/image)
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(require "../2d.rkt")
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(define window-projection (compile-projection (at-meta (?! (window ? ?)))))
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(2d-world (spawn (lambda (e s)
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(match e
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[(? patch? p)
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(define-values (added removed) (patch-project/set/single p window-projection))
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(transition s (for/list [(w added)]
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(match-define (window width height) w)
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(update-scene `((push-matrix (scale ,width ,height)
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(texture ,(rectangle 1 1 "solid" "white"))))
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`())))]
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[_ #f]))
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(void)
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(sub (window ? ?) #:meta-level 1)
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;; (assert 'fullscreen #:meta-level 1)
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)
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(let ((move-to (lambda (x y)
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(transition (list x y)
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(update-sprites (simple-sprite 0 x y 10 10 (rectangle 1 1 "solid" "blue")))))))
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(spawn (lambda (e s)
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(match-define (list x y) s)
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(match e
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[(message (at-meta (key-event 'left _))) (move-to (- x 2) y)]
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[(message (at-meta (key-event 'right _))) (move-to (+ x 2) y)]
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[(message (at-meta (key-event 'up _))) (move-to x (- y 2))]
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[(message (at-meta (key-event 'down _))) (move-to x (+ y 2))]
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[_ #f]))
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(list 100 100)
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(update-sprites (simple-sprite -0.5 100 100 10 10 (rectangle 1 1 "solid" "blue")))
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(sub (key-event ? ?) #:meta-level 1)))
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(spawn (lambda (e s) #f)
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(void)
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(update-sprites (simple-sprite 0 50 50 50 50 (circle 50 "solid" "orange"))
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(simple-sprite -1 60 60 50 50 (circle 50 "solid" "green"))))
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(spawn (lambda (e s)
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(match e
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[(message _)
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(transition s (assert 'stop #:meta-level 1))]
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[_ #f]))
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(void)
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(sub (key-event #\q ?) #:meta-level 1))
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)
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(exit 0)
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