Re: [Flashcoders] maths query
thanks glen
a
On Thu, Feb 5, 2009 at 6:29 PM, Glen Pike postmas...@glenpike.co.uk wrote:
Hi,
It looks better than my deadzone calc's which take up a lot more code (I
have 2 directions and a deadzone area in the middle and around the outside
of the mouse area controlling the velocity), but you are welcome to
compare below - I think mine is a bit more verbose, but I was trying to make
sure I could debug and come back to it in a few months time and understand.
Whatever works for you I guess.
Glen
private function _mouseMoveHandler(event:MouseEvent):void {
var tmpX:Number;
var tmpY:Number;
//Get x, y in relation to centre of stage - need to clamp
tmpX = this.mouseX - WIDTH / 2;//event.stageX -
this.stage.stageWidth / 2;
tmpY = this.mouseY - HEIGHT / 2;//event.stageY -
this.stage.stageHeight / 2;
var absX:uint = Math.abs(tmpX);
var absY:uint = Math.abs(tmpY);
var dirX:int = tmpX / absX;
var dirY:int = tmpY / absY;
//clamp the movement to a maximum;
tmpX = Math.min(_clampMax, absX) * dirX;
tmpY = Math.min(_clampMax, absY) * dirY;
//App.debug(mouse + this.mouseX + , + this.mouseY + tmp
+ tmpX + , + tmpY + abs + absX + , + absY);
//only respond to a minimum position from centre within
our square..
if (_clampMax = absX || _clampMax = absY) {
_mouseClamp = true;
return;
}
_mouseClamp = false;
if(_clampMin absY) {
_velX = (absY * dirY) / _mouseDamping;
} else {
_velX = 0;
}
if(_clampMin absX) {
_velY = -((absX * dirX) / _mouseDamping);
} else {
_velY = 0;
}
//App.debug(mouse Move + _velX + , + _velY);
}
allandt bik-elliott (thefieldcomic.com) wrote:
hi guys
I'm working on a carousel and i have a quick question about adding a
non-active area in the middle
at the moment, the carousel will move forward and backward based on the
mouse's position in relation to the center of the carousel but I'd like to
widen that by nDeadzoneRadius
here is the way that i'm doing it at the moment - it seems very clunky to
me
but it's doing the job
this is on the onMouseMove listener
private function adjustSpeed():Void
{
var nMousePos:Number = _root._xmouse - nCenterX;
// !HACK! this is the bit i'm querying
if (Math.abs(nMousePos) nDeadzoneRadius) nMousePos = 0;
else nMousePos = (nMousePos 0) ? nMousePos - nDeadzoneRadius :
nMousePos + nDeadzoneRadius;
// end of !HACK!
nSpeed = nMousePos / ((36 / _nNumberOfItems) * 1000); //4:800,
8:4000, 12:3000, 24:1500
}
so i guess my question is, is there a more elegant solution to this,
please?
ta
a
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--
Glen Pike
01326 218440
www.glenpike.co.uk http://www.glenpike.co.uk
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[Flashcoders] maths query
hi guys
I'm working on a carousel and i have a quick question about adding a
non-active area in the middle
at the moment, the carousel will move forward and backward based on the
mouse's position in relation to the center of the carousel but I'd like to
widen that by nDeadzoneRadius
here is the way that i'm doing it at the moment - it seems very clunky to me
but it's doing the job
this is on the onMouseMove listener
private function adjustSpeed():Void
{
var nMousePos:Number = _root._xmouse - nCenterX;
// !HACK! this is the bit i'm querying
if (Math.abs(nMousePos) nDeadzoneRadius) nMousePos = 0;
else nMousePos = (nMousePos 0) ? nMousePos - nDeadzoneRadius :
nMousePos + nDeadzoneRadius;
// end of !HACK!
nSpeed = nMousePos / ((36 / _nNumberOfItems) * 1000); //4:800,
8:4000, 12:3000, 24:1500
}
so i guess my question is, is there a more elegant solution to this, please?
ta
a
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Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
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Re: [Flashcoders] maths query
Hi,
It looks better than my deadzone calc's which take up a lot more
code (I have 2 directions and a deadzone area in the middle and around
the outside of the mouse area controlling the velocity), but you are
welcome to compare below - I think mine is a bit more verbose, but I was
trying to make sure I could debug and come back to it in a few months
time and understand. Whatever works for you I guess.
Glen
private function _mouseMoveHandler(event:MouseEvent):void {
var tmpX:Number;
var tmpY:Number;
//Get x, y in relation to centre of stage - need to clamp
tmpX = this.mouseX - WIDTH / 2;//event.stageX -
this.stage.stageWidth / 2;
tmpY = this.mouseY - HEIGHT / 2;//event.stageY -
this.stage.stageHeight / 2;
var absX:uint = Math.abs(tmpX);
var absY:uint = Math.abs(tmpY);
var dirX:int = tmpX / absX;
var dirY:int = tmpY / absY;
//clamp the movement to a maximum;
tmpX = Math.min(_clampMax, absX) * dirX;
tmpY = Math.min(_clampMax, absY) * dirY;
//App.debug(mouse + this.mouseX + , + this.mouseY +
tmp + tmpX + , + tmpY + abs + absX + , + absY);
//only respond to a minimum position from centre within our
square..
if (_clampMax = absX || _clampMax = absY) {
_mouseClamp = true;
return;
}
_mouseClamp = false;
if(_clampMin absY) {
_velX = (absY * dirY) / _mouseDamping;
} else {
_velX = 0;
}
if(_clampMin absX) {
_velY = -((absX * dirX) / _mouseDamping);
} else {
_velY = 0;
}
//App.debug(mouse Move + _velX + , + _velY);
}
allandt bik-elliott (thefieldcomic.com) wrote:
hi guys
I'm working on a carousel and i have a quick question about adding a
non-active area in the middle
at the moment, the carousel will move forward and backward based on the
mouse's position in relation to the center of the carousel but I'd like to
widen that by nDeadzoneRadius
here is the way that i'm doing it at the moment - it seems very clunky to me
but it's doing the job
this is on the onMouseMove listener
private function adjustSpeed():Void
{
var nMousePos:Number = _root._xmouse - nCenterX;
// !HACK! this is the bit i'm querying
if (Math.abs(nMousePos) nDeadzoneRadius) nMousePos = 0;
else nMousePos = (nMousePos 0) ? nMousePos - nDeadzoneRadius :
nMousePos + nDeadzoneRadius;
// end of !HACK!
nSpeed = nMousePos / ((36 / _nNumberOfItems) * 1000); //4:800,
8:4000, 12:3000, 24:1500
}
so i guess my question is, is there a more elegant solution to this, please?
ta
a
___
Flashcoders mailing list
Flashcoders@chattyfig.figleaf.com
http://chattyfig.figleaf.com/mailman/listinfo/flashcoders
--
Glen Pike
01326 218440
www.glenpike.co.uk http://www.glenpike.co.uk
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