ActionScript 3.0 :: Rotating A MovieClip Around Its Center Using A Handle?
Nov 4, 2010
a movieClip that contains a polygon and some circles at the angles of the polygon. I want to use the circles as rotation handles.Now the code below works but it terribly, terribly slow.I've seen a couple of other examples of rotation using the mouse position, but I want the polygon to rotate via the handle; I think that means the angle of rotation needs to be updated each time the mouse moves.Is there a cleaner/more efficient way to do this?Also, this works only for one direction right now no matter the x/y direction you move the mouse.
public function mouseDownRotate(event:MouseEvent):void {
// get the global x and y of the dragged piece (offset so it looks like it's rotating around the polygon's center
[code]......
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Feb 18, 2003
my problem is that even if the registration point of the MC I want to rotate is in its center it keeps rotating in its upper left corn.The MC is a jpg I load dynamically.The syntax I use is : _root.photo._rotation += 90;
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Dec 10, 2009
how to do an effect like the one seen on this page?: http:[url]....
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Jan 31, 2010
I have been working on this and thinking about it for days but I just can't seem to get it right. I want to have a circle that I can "pick up" with the mouse and then rotate (with the rotation point in the center). Currently I have done this with the following code:
PHP Code:
var radians = Math.atan2(mouseY-circle.y, mouseX-circle.x);
var degrees = Math.round((radians*180/Math.PI));
circle.rotation = degrees + 90;
I have added a mouse listener for movement to the circle mc and then checked if a button was down. On button down this code would be executed on enter frame. This code works but the main problem is that I want to be able to "pick the circle up" at any angle and rotate it. If I pick it up with this code the circle automatically rotates to 90 degrees.
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Dec 14, 2009
All I need to do is rotate an object (which could spawn at any point along each of the four edges of the screen) so that it faces towards the centre of the screen. Obviously this will be done using the .rotationZ property. I will know the starting point of the object, and the centre point of the screen (400, 300). The object begins facing directly 'up' (e.g. if it spawned directly below the centre of the screen it would already be at the correct angle).
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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.
var point:Point=new Point(spr_box.x+spr_box.width/2, spr_box.y+spr_box.height/2);
rotateAroundCenter(spr_box,45);
function rotateAroundCenter (ob:*, angleDegrees) {
[Cde].....
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Jan 27, 2006
I have spent hours trying to figure out how i could rotate a loaded movie through the centre axis rather than the set point set by flash in the left corner.
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Sep 6, 2006
I'm doing a little photo rotation front-end for a site I'm working on. It's a custom photo gallery site that needs to have a photo rotation functionality to it. The back-end developers couldn't find a decent way to do it in Javascript, so they've come to me to figure it out in Flash.They pointed me to the Flickr rotation tool as an example. Seems like it should be straightforward:Load photo into empty movie clip on stageRe-center photo movie clip to the stageUse left/right rotation buttons to rotate image in 90 degree incrementsThat said, I'm having a tough time, after I load a photo into the empty movieclip, using a rotate left and rotate right button to spin the photo around. Obviously, the registration point is in top-left corner of the photo movieclip when the photo is loaded.
I've read that rotation can be managed by putting the clip to be rotated into an outer clip, but...there's a catch......I won't ever know what the exact size of the photo being loaded is going to be, so I can't set the outer clip to a certain size. I only know that it will never be wider than 100px.
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Mar 9, 2009
I am trying to rotate some points around the center of the circle(0,0), however I'm getting weird values from the output. I've commented the problem code..
Code:
var r:Number = 10;//radius
var y:Number;
var x:Number;
var a:Number = 90;//angle of which the semi-circle is facing.. could be a random angle.
var ax:Number;//rotated points
[Code] .....
I am using the semicircle in BitmapData collision checking with getPixel(), with a moving circle...
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Feb 21, 2011
I am in the midst of finishing up a design application where you can upload images and colors. I use the greensock transform manager. I am taking anything a user does and recording it so I can recreate what they made on larger scale behind the scenes (to be exported for printing purposes)
The problem I am running into is with rotation and moving x and y values. The transform manager does everything relative to a center point, but when i recreate the image object the registration point is at the top left. I have found how to rotate around the center of the object using the transform matrix, but I can't seem to move the x and y correctly because these values change when you rotate. I want to just move the image to the left or right relative to the center. How could I go about doing this.
Here is how I rotate.
private function rotateAroundCenter (ob:*, angleDegrees:Number, ptRotationPoint:Point) {
var m:Matrix=ob.transform.matrix;
m.tx -= ptRotationPoint.x;
[Code]....
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May 12, 2009
i have a triangle that i generate using the following code:
Code: Select allinternal function generateTriangle(w, h, topPoint, color = "0xFF9900") {
var triangle:MovieClip = new MovieClip();
with (triangle.graphics) {
[Code]....
I use this function and a foreach loop to generate 9 differently colored and sized triangles, which works fine when i place them on the canvas. But if i try to rotate them they rotate around the 0,0 point - i want them to rotate around the center of the individual triangles, how do i do that?
1. How do i move a dynamically generated triangle inside a movieclip? Solved using [URL]
2. How do i access each of the triangles inside the movieclip, or even better, place them in 9 different movieclips using addChild so that i can move them around individually?
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Nov 30, 2009
I have 4 movie clips rotating around a center axis. I know how to make each one pause individually, but I don't know how to get them all to pause when you roll over just one of them. Right now it only pauses the one you roll over and the others continue to rotate. I have this code pasted into the actions of each movieclip that is rotating.
Code:
onClipEvent (load) {
var radius = 220;
var speed = .6;
var xcenter = 450;
var ycenter = 300;
[Code] .....
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May 27, 2010
I want to be able to rotate the ship around the center point and be able to update the .x and .y at the same time.I've got this two versions of code.1
Code:
if (aKeyPress[38])
{
[code].....
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May 4, 2010
[URL]I'm using this code and I made some changes like freezing the rotation when the mouse is over the rotation entities. But I'd like to stop rotation when the mouse leaves the stage. How can I do?This is my code
Code:
import flash.filters.BlurFilter;
import mx.transitions.Tween;
import mx.transitions.easing.*;
[code]....
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Feb 6, 2010
I'm creating a scrollbar gallery from a tutorial on this site. Though I've completed the tutorial, and customised the gallery to my own needs, however I'm trying to make a very small change to it - and no matter what I do, keep running into problems. I'm trying to replace the rectangular handle with my own customised handle - a (20 x 20) 'circular' png image that I've imported into Flash, made a graphic and stored in the library (though I understand it can be imported using actionscript, like the other images in the gallery).
[Code]....
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May 18, 2009
I simple want to have a resize handle at the bottom right corner of a Movieclip that is being created dynamically via AS3. Can anyone point out an example of how this might be done?
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Mar 29, 2009
I currently have one movieclip in my library, but 4 instances of it on the stage. I was wondering what the best way to animate them so they can do things 'separately'- I'm not sure if Actionscript is the answer, but it's worth a try. I just don't want all of them to move when I move one of them (when I try to animate them inside their movieclip).Possible solutions: I already have one that isn't very... resource friendly. For every individual instance I can turn it into it's own Movieclip, so it isn't affected by the rest... but if I were to have many, many movieclips on the stage, that would quickly overflow my library. If that's the only way fine, but I'm sure there's a work around.
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Aug 6, 2009
how to addChild() a new Object to an existing movieClip on stage from an external class....
for better understanding:
This is my external Class:
ActionScript Code:
package joueur
{
public class CreeJoueur
[Code]....
Then i have the main .fla file with a movieClip on frame1 called 'terrain'.
When i try my code, the external class does'nt reach the terrain MovieClip :
ActionScript Code:
Error 1120: Access of undefined property terrain
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Mar 1, 2004
How come i handle the movieclip which i loaded into target movielip?
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Oct 20, 2010
Is it possible to handle/control a movieclip that's on stage through a class? (not the main class)?
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Apr 27, 2010
I'm using Adobe Flash CS4.The language is Action Script 3In my library I have 2 items:playerwallthe player object is already functioning correctly with moving him around.Now when I place multiple wall objects into the stage (wall = 32x32 px) I want to prevent the player from moving when he walks into a wall.I've tried giving all the walls the same instance name and just check for a collision with that object but when I do that the collision only works for 1 of the walls.I could give all the instances of wall a different collision script but this is way to time consuming, is there another way to globally define the wall as solid for the player?
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Jul 14, 2003
How flash setup a variable to handle the newly created movieclip?
Example:
this.createEmptyMovieClip("mymovie",2);
this.clientscroller.setScrollContent(mymovie);
Where did I set it up as a variable? I tried this and didn't work either:
this.createEmptyMovieClip("mymovie",0);
mymovie.createTextField("mytext",1,100,100,300,100 );
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May 12, 2010
I have a circular diagram with approximately 8 icons around the outter part of the circle. These points are all buttons. When Clicked, I want the diagram and icons to animate round to the top point (360 or 0 degrees). Then, when another icon is clicked they will all move round so that one is at the top.It would be a great bonus to have a slick easing in motion too but not essential - just a 'nice to have'.I have looked over forums and responses and there is quite a bit of info on this but I'm finding it difficult to apply it to this particular project.
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Apr 1, 2010
im using CS3, AS 2.0
how do you rotate the position of one MC to another. for example a triangle, i have one mc that rotates to face the mouse position but i want another mc to rotate towards the player
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Apr 16, 2010
I'm trying to rotate a movieClip from it's original position, to a random anglehere's what I have:
function getRandomNumber(min:Number, max:Number):uint{ var randomNumber:Number=Math.round(Math.random()*(max-min)+min); return randomNumber;}
particles.rotate(angle:getRandomNumber(0,180));
[code]........
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Mar 30, 2009
I have been trying to convert this effect into AS3 but have been having majour issues : rotate clip
I have an object (class) with a handle, when dragged I would like the clip to rotate with the mouse (much like rotating an object in photoshop). I have put my code into an ENTER_FRAME event, and have been using a matrix object to do my rotation (is there an easier way?)
Code:
private function rotateClip(e:Event)
{
myMatrix.rotate((Math.floor(180*Math.atan2(mouseX,mouseY)/Math.PI)+90));
[Code].....
was my attempt at converting the code from the example link. I've also tried various other methods using trig to no avail.
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Dec 8, 2010
how can I make the green movieclip rotate in the point that the claw has catch it. To give an impression of physics. Here´s the image, to give you an idea:
The point (x,y) that the claw catches the colored movieclips below is not unique it can be any number. As long as the claw catches the colored movieclip.
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Jan 7, 2011
How do I make an mc constantly rotate? I know this must be simple but i dont know how to do it. I just want it to rotate around its middle. How would i do this?
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Jan 23, 2007
I've created some code that rotates an arrow up or down when the user clicks on it, depending on whether the timeline is on frame 1 or 5. The problem I am encountering is that rather than rotating visually, it just flips to the correct degree (in this case, 0 or 180).
Code:
function turndown():Void{
for(i=0; i<16; i++){
this.upDownMC._rotation += 11.25;
}} function turnup():Void{
[Code] ......
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Apr 21, 2007
How can I rotate a movieclip so that when I move it, it will rotate slightly depending on the angle of the ground. The only thing I can relate this too is the old school sonic games. How would I find the curve of the ground and apply it the moving character?
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