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(use-modules (chickadee)
(chickadee graphics text)
(chickadee math vector)
(chickadee scripting))
(define start-time 0.0)
(define avg-frame-time 16.0)
(define stats-text "")
(define stats-position (vec2 4.0 704.0))
(define position (vec2 160.0 240.0))
(define text "The quick brown fox jumps over the lazy dog.\nFive hexing wizard bots jump quickly.")
(define (stats-message)
(format #f "fps: ~1,2f"
(/ 1.0 avg-frame-time)))
(define (load)
(script
(forever
(sleep 60)
(set! stats-text (stats-message)))))
(define (draw alpha)
(draw-text text position)
(draw-text stats-text stats-position)
(let ((current-time (elapsed-time)))
(set! avg-frame-time
(+ (* (- current-time start-time) 0.1)
(* avg-frame-time 0.9)))
(set! start-time current-time)))
(define (update dt)
(update-agenda 1))
(define (key-press key modifiers repeat?)
(when (eq? key 'q)
(abort-game)))
(run-game #:draw draw
#:key-press key-press
#:load load
#:update update
#:window-title "text rendering")
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