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(define prompt-active #f)
(define prompt-box (make-rect 0 0 800 20))
(define prompt-text "")
(define (prompt-update)
(let ((key-pressed (rl-get-key-pressed)))
(if (or (eq? key-pressed 161) (eq? key-pressed 96))
(set! prompt-active (not prompt-active))
)
(if prompt-active
(begin
(let ((key (rl-get-char-pressed)))
(cond ((and (>= key 32) (<= key 125))
(set! prompt-text
(string-append prompt-text (string (integer->char key)))))
))
(if (rl-is-key-down KEY_ENTER)
(begin
(eval-string prompt-text)
(set! prompt-text "")
))
(if (eq? key-pressed KEY_BACKSPACE)
(let ((n (string-length prompt-text)))
(cond ((>= n 1)
(set! prompt-text (substring prompt-text 0 (- n 1))))
)))
))
)
)
(define (prompt-draw)
(if prompt-active
(begin
(rl-draw-rectangle
(rect-x prompt-box)
(rect-y prompt-box)
(rect-width prompt-box)
(rect-height prompt-box)
(make-color 190 100 255))
(rl-draw-text prompt-text 0 0 20 (make-color 0 0 0))
))
)
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