getElementById without the 0 compiles fine (thanks!) and I get no errors in the
repl console or the JS console ... yet the colored rectangle doesn't show up.
hmmm
Seems like the canvas element isn't in the repl-ized window or something...
cljs.user=> (def mc (canvas/init (.getElementById js/document "canvas")))
"Error evaluating:" (def mc (canvas/init (.getElementById js/document
"canvas"))) :as "cljs.user.mc =
canvas.init.call(null,document.getElementById(\"canvas\"));\n"
#<ReferenceError: canvas is not defined>
ReferenceError: canvas is not defined
at eval (eval at <anonymous>
(http://localhost:63402/560/repl/start:1463:318), <anonymous>:1:80)
at eval (eval at <anonymous>
(http://localhost:63402/560/repl/start:1463:318), <anonymous>:5:3)
at http://localhost:63402/560/repl/start:1463:313
at clojure.browser.repl.evaluate_javascript
(http://localhost:63402/560/repl/start:1464:338)
at Object.callback (http://localhost:63402/560/repl/start:1472:82)
at goog.messaging.AbstractChannel.deliver
(http://localhost:63402/560/repl/start:1340:393)
at goog.net.xpc.CrossPageChannel.xpcDeliver
(http://localhost:63402/560/repl/start:1433:350)
at Function.goog.net.xpc.NativeMessagingTransport.messageReceived_
(http://localhost:63402/560/repl/start:1392:389)
at goog.events.Listener.handleEvent
(http://localhost:63402/560/repl/start:1072:102)
at Object.goog.events.fireListener
(http://localhost:63402/560/repl/start:1087:448)
nil
cljs.user=>
Maybe I need to start with something simpler than cljs-start. I don't
understand all what it's doing yet.
,boz
On Friday, January 17, 2014 7:07:30 AM UTC-8, Nikita Beloglazov wrote:
> I'd say feel free to use getElementById. But you don't need to pass 0 in this
> case. In former example (.get ... 0) was used to get actual dom element from
> array returned by JQuery. In your case you get dom element in the first place
> and don't need to get 0-st element.
>
>
>
>
> On Fri, Jan 17, 2014 at 2:59 PM, boz jennings <[email protected]> wrote:
>
> Thanks Nikita!
>
>
>
> That helps. Now I read the monet code again and see mc all over the place :)
>
> Wasn't able to get it working with the cljs-start yet. Haven't had much time
> to do it. Hopefully do more today.
>
>
>
> Looks like the monet docs assume jayq is used too (that $). Does monet have a
> jayq dependency? Or is it OK to use this?
>
> (def mc (canvas/init (.getElementById js/document "canvas") 0))
>
>
>
> ,boz
>
>
>
>
>
> On Thursday, January 16, 2014 5:42:53 AM UTC-8, Nikita Beloglazov wrote:
>
> > Hi Boz
>
> >
>
> > I believe that mc stands for 'monet-canvas' which is created by 'init'
> > function and example from README is incorrect. You need to get monet-canvas
> > first from 'init' function and then add entity to it. Try this:
>
>
> >
>
> > (def mc (canvas/init (.get ($ :#canvas) 0)))
>
> >
>
> > (canvas/add-entity mc :background
>
> > (canvas/entity {:x 0 :y 0 :w 600 :h 600}
>
> > nil ;;update function
>
> > (fn [ctx box]
>
> > (-> ctx
>
> > (canvas/fill-style "#191d21")
>
> > (canvas/rect box)))))
>
> >
>
> > Nikita
>
> >
>
> > On Thursday, January 16, 2014 2:53:33 AM UTC, boz jennings wrote:
>
> > > Hi,
>
> > >
>
> > > Can someone give me pointers on using monet?
>
> > >
>
> > > I'm trying to get to know Clojurescript. Just cloned cljs-start and put
> > > in dependencies and changes that I hope will work for monet
> > > https://github.com/rm-hull/monet
>
>
> > > But I get this when compiling
>
> > >
>
> > > WARNING: Wrong number of args (2) passed to monet.canvas/add-entity at
> > > line 17
> > > /Users/boz/dev/clojure/cljs-start-001/src/cljs/cljs_start_001/core.cljs
>
> > >
>
> > >
>
> > >
>
> > > Here's the code in cljs_start_001/core.cljs. It's basically just a copy
> > > from the monet README.md...
>
> > >
>
> > > (ns cljs-start-001.core
>
> > > (:require [monet.canvas :as canvas]))
>
> > >
>
> > > (canvas/add-entity :background
>
> > > (canvas/entity {:x 0 :y 0 :w 600 :h 600}
>
> > > nil ;;update function
>
> > > (fn [ctx box]
>
> > > (-> ctx
>
> > > (canvas/fill-style "#191d21")
>
> > > (canvas/rect box)))))
>
> > > (canvas/init (.get ($ :#canvas) 0))
>
> > >
>
> > >
>
> > >
>
> > > monet's add-entity looks like this....
>
> > >
>
> > > (defn add-entity [mc k ent]
>
> > > (aset (:entities mc) k ent))
>
> > >
>
> > > But I have no idea what mc k and ent are supposed to be.
>
> > >
>
> > > Thanks!
>
> > > ,
>
>
>
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