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From: | Shawn Rutledge |
Subject: | Re: [Chicken-users] Chicken and Cocos2Dx on Google Play! |
Date: | Sat, 3 Nov 2012 22:18:22 +0100 |
Dear Chickeners,I have been playing around with Chicken, Chipmunk and Cocos2Dx for a while, and I've finally got a demo up and running on Android. I've published it on Google Play in the "Libraries and Demos" category so you guys can test it!Check it out: Scheme REPL with Cocos2DxThe demo features a truck which you can drive back and forth, clumb up hills and fall down. Not very exciting, but I do actually catch myself playing it when I don't know what I should be coding on! The cool part is that there's a Chicken REPL behind the scenes. You can connect to the REPL directly from your laptop if your phone is on the same WiFi, or use USB. Try Settings->Wireless Networks->Wifi Settings-> [Menu]->Advanced when looking for you phone's IP.
With netcat (or Emacs, with nc [ip] [port] as your Scheme interpreter), you could try:$ nc [phone ip] [port]
Alternatively, you could use USB with adb and forward:
$ adb forward tcp:1234 tcp:1234
$ nc localhost 1234
Once you see the REPL prompt @>, you can play around:
;; 'import' chipmunk bindings
(use chickmunk)
;; where is the player?
(body-get-pos truck)
;; redefine game-loop to pause game unless you're touching the screen
(define (*update*)
(if *touch-down* (space-step space (/ 1 120))))
;; now let's give the truck a gentle push
(body-set-ang-vel wf -20)
;; now touch the screen to watch it drift off
;; restart the app to revert your changes
(exit)
;; You can also manipulate the physics-world:
;; Drop a ball from the sky
(space-add space
`(body ((pos (320 700)))
(circle (density 0.001)
(friction 1)
(radius 10))))
;; Add a gentle but slippery slope
(space-add space
`(body ((static 1))
(segment (friction 0.1)
(endpoints ((250 500)
(800 550))))))
;; type this to see the touch-down state:
*touch-down*
;; it should be #f when your finger is off the screen, and touch-coordinates otherwise. evaluate it while holding the screen to try it out!If you have an Android phone, it'd appreciate if you took the time to check it out. I am particularly interested if the app won't start at all, and perhaps what framerate you're getting (very bottom-left). I know there is a memory leak somewhere (thanks Alaric!), but otherwise I hope things should be running fairly smoothly.Cheers!Kris
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