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author | David Thompson <dthompson2@worcester.edu> | 2020-11-18 17:23:29 -0500 |
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committer | David Thompson <dthompson2@worcester.edu> | 2020-11-18 17:23:29 -0500 |
commit | 683c6ea4b7572f82dda5b9371afc94108eef31de (patch) | |
tree | f3cbd90c61b5df801b2a33d069551983c8bc784a /examples/particles.scm | |
parent | dafddcdb4c867f40b625c149345e4d3c3841f645 (diff) |
examples: Replace calls to sdl-ticks with elapsed-time.
Diffstat (limited to 'examples/particles.scm')
-rw-r--r-- | examples/particles.scm | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/examples/particles.scm b/examples/particles.scm index 5b42025..97cdb1d 100644 --- a/examples/particles.scm +++ b/examples/particles.scm @@ -8,8 +8,7 @@ (chickadee graphics sprite) (chickadee graphics texture) (chickadee scripting) - (ice-9 format) - ((sdl2) #:select (sdl-ticks))) + (ice-9 format)) (define window-width 800) (define window-height 600) @@ -17,7 +16,7 @@ (define emitter #f) (define particle-texture #f) (define sprite-texture #f) -(define start-time (sdl-ticks)) +(define start-time 0.0) (define avg-frame-time 0) (define stats-text "") @@ -58,7 +57,7 @@ (draw-particles particles) (draw-sprite sprite-texture sprite-position) (draw-text stats-text stats-text-pos) - (let ((current-time (sdl-ticks))) + (let ((current-time (elapsed-time))) (set! avg-frame-time (+ (* (- current-time start-time) 0.1) (* avg-frame-time 0.9))) |