ActionScript 3.0 :: Change The Rotation Point Of A Sprite?
Feb 4, 2008
I'm attempting to write a racing game. I've loaded in my image, I brought it to the stage and now, all I want to do is rotate it from its' center and not upper left corner.
The code:
racer.rotation += 5;
rotates from the upper left corner. How do I rotate from the center of the car/sprite? I've tried putting it into a container but I'm unsure on the coordinates of the container because I tried to set the x,y coordinates to half the sprite image but y'know, it's not doing what I expect it to.
ActionScript Code:
if (arrowLeft) {
var container:Sprite = new Sprite();
[Code]....
I will never sneer at another racing game! I didn't think it would be this hard to do a simple rotate of an image!
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Jul 15, 2011
i have the follow issue :
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May 22, 2011
I'm trying to convert a Sprite that I have into BitmapData so I can perform some collision detection. There are a few things about the way the Sprites are used that is making this more difficult than I expected:
The Sprite itself is a container which holds another Sprite that actually has a box drawn in it. The inner Sprite is positioned negative half its width & height so that it can be rotated from the center via the container. The container may be rotated at any angle at any given time
So my approach thus far has been attempting to draw the outer Sprite onto a new BitmapData object with a Matrix to account for the difference. Whilst I can use a Matrix to make this work for one particular rotation angle, I cannot find a way to make it work for any rotation.
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var p:Product = getProduct(); // Product is the container with the inner sprite
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[Code]....
Translating by the same amount as the previous example will no longer work here, and the box will still be cut off. I've looked around at some solutions posted before or suggestions from other people but they don't seem to work for me due to my container Sprite and rotation.
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Apr 18, 2011
Has anyone got a bit of code I can use to change the center point DisplayObjects rotate around in a 3D space? I need it to work with rotationX, rotationY and rotationZ. I know theres a workaround of wrapping every object in aother sprite and offsetting the x & y positions but I'd much prefer a math solution. As an example of the problem, this code should make a star shape:
[Code]...
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Jul 31, 2009
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[Code]....
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Aug 19, 2010
As is well demonstrated by a Google search, the rotationX, rotationY, and rotationZ properties turn a display object around the center.
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Jul 6, 2011
I found this actionscript online to rotate a sprite around its center point but I get two errors when I use it. 1084: Syntax error: expecting identifier before leftparen. 1084: Syntax error: expecting rightparen before leftbrace. Also, in place of angleDegrees do I put in the angle I want the sprite to rotate by?
var point:Point=new Point(spr_box.x+spr_box.width/2, spr_box.y+spr_box.height/2);
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function rotateAroundCenter (ob:*, angleDegrees) {
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[Code]...
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Jul 13, 2009
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Nov 9, 2009
Im using A
Code:
function enterFrameHandler(event:Event):void
{
[code]........
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i'm working on a flash game at the moment, and i would like to know if i am able to set the point that the movieclip rotates around using actionscript.
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[edit] rotation point, aka, registration point.[/edit]
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I am making a 'simple' template builder in flash which allows the user to add/remove text boxes and images to the stage.
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greetings, first of all sorry for my english. This question will probably looks more difficult than it is.
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Code:
import flash.geom.Matrix;
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[Code]...
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[Code]....
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[code]...
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[Code]...
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How can I know if a point is contained inside of an Sprite in Flex?
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how I can count the B point's coordinates (see attached image... or not as I am a new user...pf!). I know the arrow's rotation - so the angle (let's say it is -120), A's coordinates (0, 0) - A is the middle point of the arrow, and that the distance between A and B is 50 px.
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Code:
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[code]....
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Aug 9, 2011
I searched online and found this script that is supposed to rotate and image but I'm not sure how to use, where to put in the degree angle that I want my sprites to rotate by. Also, I get an error. 1084: Syntax error: expecting identifier before leftparen. 1084: Syntax error: expecting rightparen before leftbrace.
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function rotateAroundCenter (ob:*, angleDegrees) {
[Cde].....
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Aug 8, 2009
I once needed to pan a sprite full of movieClips (picture 1) which were draggable with no bounds so you could drag them up and left (higher than sprites registration point).
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Mar 29, 2012
I am generating sprites programatically like this:
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[Code]...
I basically want the food sprite to spin slowly about its center, not its x and y value which is the top left corner of the sprite. How can I make the anchor the center of the sprite?
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