[squeakland] point towards the mouse?

[p.a.dreyfuss at excite.com]

Hi,Bill

You'll find the tiles  mouseX and mouseY in the playfield category of a playfield  or of the  world.

get an arrow fom object catalog/graphics

move the ble rotation handle sligtly to make te center or rotation visible and move it shift/drag to the foot of the arrow.
get the viewer of the arrow category polygon, et the arrow's vertex .cursor to 2 (head of the arrow).

now just build the tiles :

arrow's x at cursor _  playfield's mousex
arrow's y at cursor _  playfield's mousey

You probably just need to find where the tiles mouse and mousey were lying, but this will help other people.

Regards

 
-----Original Message-----
From: "Hilaire Fernandes" [hilaire.fernandes at edu.ge.ch]
Date: 11/11/2009 02:51 AM
To: "Bill Kerr" <billkerr at gmail.com>
CC: "squeakland.org mailing list" <squeakland at squeakland.org>
Subject: Re: [squeakland] point towards the mouse?

You may have to write something like that

script1
	self
		setHeading: (self costume referencePosition bearingToPoint:
ActiveHand x @ ActiveHand y)



This example does not work yet, but you get the idea.

Hilaire



2009/11/11 Hilaire Fernandes <hilaire.fernandes at edu.ge.ch>:
> For point 2.,  you may have to write the script in Smalltalk mode then
> use the code
>
> ActiveHand x to get abscissa of the mouse pointer
>
> Hilaire
>
>
> 2009/11/11 Bill Kerr <billkerr at gmail.com>:
>> 1) Is it possible to get an arrow to point towards the mouse pointer in
>> etoys?
>> I can get it to point towards a box which is being moved with the mouse with
>> this script: arrow's heading <-- arrow's bearing to box
>> In the world menu in the playfield pane there are mouse x and mouse y
>> detectors but arrow's bearing will not accept those detectors as input to
>> replace just the box part
>> 2) I also wanted to detect a mouse click but can't see any way to do that.
>> The input pane in the world menu detects last keystroke but not a mouse
>> click.
>> _______________________________________________
>> squeakland mailing list
>> squeakland at squeakland.org
>> http://lists.squeakland.org/mailman/listinfo/squeakland
>>
>>
>
>
>
> --
> http://blog.ofset.org/hilaire
>



-- 
http://blog.ofset.org/hilaire
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