ActionScript 2.0 :: Rotating A Movable Movieclp Around A Spcific Point?
May 2, 2010
I've been trying to figure this out for a while now and cannot get it to work. I have a movieclip that can be moved up, down, left and right with the arrow keys, and reflected/flipped using the arrow and control keys together. However, I want to be able to use the arrow keys and shift to rotate the movieclip about a point with x co-ordinate 230 and y co-ordinate 180, regardless as to whether or not the movie clip has been moved up, left, etc.I've tried several different codes based on examples I've found online, but none have worked. I cannot make sure the centre point of rotation never changes.
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Jul 26, 2006
concept I can't wrap my mind around.If you've been the the sitehe has a "picture map"I've seen this used at other sites too.But what the rotation. The pictures always rotate around the point you click on.I just don't get it. I understand the momentum and all for the swing though
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Jul 2, 2011
Line is defined by two 3d points; (0,0,0) and (x,y,z). And there is also this 3d point. How can rotate this 3d point around the line?
Something like this (points indicate vectors in my expression, it's the same thing) :
I found some stuff on the internet but I couldn't really figure it out.
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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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Dec 10, 2009
how to do an effect like the one seen on this page?: http:[url]....
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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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Feb 14, 2012
I have a MovieClip, that is representing a character in my game. Id like to "create bullets" shooting out from the tip of my characters gun. Problem is that when my character turns around, also the point rotates around the MovieClips pivot.
Is it possible to anyhow easily track this point, so that I could dynamically create new objects at the same location.
I tried to add a new MC as a child to my character, with the initial position at the guntip. In some systems child-objects "follow" their parents around, but it didnt seem to work here.
Is there any other "native" way of doing this, or do I just have to have a Polar-coordinates representation of the point relative to character-MovieClips origin, and add the MC rotation to theta, so that I can calculate the X and Y coordinates?
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Jun 14, 2005
I'm working on creating an animation in which there are insects randomly moving around - based on tutorials on this site. Does anybody know how to make the insect rotate so that it always points towards the direction of travel.here's what's on my movie clip:
Code:
onClipEvent (load) {
scale = (random(100)+50);
this._alpha = random(50)+20;
this._xscale = scale;
[code]....
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Feb 22, 2007
I'm actually coding this in Java (with which I have just a few days experience), but as far as the logic goes, I thought this would still be an appropriate place. I'm making a Tetris-eque game and having trouble with rotation. Each shape (rectangle, L, "step", etc) consists of 4 or 5 smaller squares (image below), and I want to be able to rotate the pattern of squares 0, 90, 180 and 270 degrees around a designated point.
x = originX + cos(angle) * radius;
y = originY + sin(angle) * radius;
I thought I understood these, but apparently not, since I can't seem to get it working� For each shape, I would declare the x, y coordinates for each of its smaller squares, relative to one another. Then, I'd send these values to a function that should take the pattern and rotate it according to the specified angle. In Java (to the best of my knowledge), the upper-left is always the "registration point" for graphics. So, I set the relative coordinates for the squares of each shape such that the left side of the leftmost square is at x = 0 and the top side of the uppermost square is at y = 0. Here's an example, the shape of a plus sign (+).
Code:
//top-center
x = squareWidth;
y = 0;
[code]....
no rotation (just the shapes)and this is what happens when I implement the rotation adjustment.
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Jul 4, 2007
I am trying to make a line point to wherever the cursor is when I stumbled upon the Math.atan2(); function. It appeared that i would put
line.rotation = Math.atan2(1,1);
to get 45 degrees or pi/4, but I was wrong. It barely moved the movieclip at all. So what I'm trying to do is to get this movie clip to rotate along with the mouse so the line is always pointing at the cursor. Also, how would you get movieclip to move along the line created by the line of these two points?
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Mar 6, 2009
What I'm trying to do is make a dial-type of interface, where you click on a point on the edge of a circle and that point will rotate to another point at the top of the circle. What I can't figure out is how the make "Point B" rotate to "Point A", where "Point A" is always fixed at the top of the circle and "Point B" (and Point C and Point D, etc...) are located along different points on the edge of the circle. I'm using the tween function to rotate, so what I need to figure out is how to get the difference in the rotation between the two points.
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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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Jan 27, 2010
I have a set of links (movie clips) arranged in a circle. When one of the links is clicked, I would like the circle of links to rotate until the selected link is in a certain position - straight down (90 degrees) in this case - and the others to maintain their positions relative to the clicked link (ie: they all move, but the distance between them is maintained). The behavior is intended to be like a bullet rotating into a chamber on a revolver, or - more accurately - like that of a Ferris Wheel. [URL] Here is my mangled version of the AS from the site linked above:
ActionScript Code:
// setting variables
var centerX = Stage.width/2; // Stage Center X
var centerY = Stage.height/2; // Stage Center Y
[code]....
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Mar 5, 2010
I have a slider which I want to use to rotate an image around it's center. This normally is easy but my problem is the clip is made dynamically and the size changes so I can't use the default registration point and I need to assign the center point before I rotate it. I found the rotateAroundExternalPoint function which rotates around a center point fine. How to get it to rotate to a certain angle and then have it stop at that angle. The rotateAroundExternalPoint increments the rotation rather then allowing me to set the angle to rotate to. Is there anyway that I can set what angle to rotate my clip to? It right now increments the rotation by the x coordinate of my slider bar (slider_position.x).
Code:
import flash.geom.Matrix;
import fl.motion.*;
var mat:Matrix = clip.transform.matrix;
addEventListener(Event.ENTER_FRAME,EnterFrame3);
function EnterFrame3(event:Event) {
var center_point_x = clip.height / 2
var center_point_y = clip.width / 2 //
MatrixTransformer.rotateAroundExternalPoint(mat,center_point_x,center_point_y,slider_position.x);
clip.transform.matrix = mat;
}
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Mar 25, 2007
How to make a point rotate about the circumference of a circle upon dragging. How do I go about doing it? Is there something to do with the
startDrag(...); ?
From what I have right now, I can move the point but not on the circumference of the circle.
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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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Oct 22, 2010
I'm trying to create a movieclip that contains 6 different images. In this movieclip, I would like, for example, a mask that follows the mouse to reveal the next picture. (ex: Image 1 has a circle mask revealing Image 2. When clicked, Image 2 will now be at the front with a circle mask revealing Image 3. And then Image 6 will not have any mask but on click will go back to the beginning)I understand that a lot of it will be up to how I order them in the timeline and frames.My problem is that in my class, we've learned how to do this for TWO images only, and the only way for the mask to move is to use the MOUSE_DOWN and MOUSE_UP events (which is where the mask is only movable if you move it yourself.)It would be a big help if someone can first answer these questions:
1)What is the function called/is for instead of a MOUSE_DOWN/UP it will just simply follow the mouse?
2)Would I have to create 6 frames with, let's say, Image1 and Image2 on Frame 1, then Image2 and Image3 on Frame 2 etc? And each frame will have its own actions layer frame?
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Nov 25, 2010
Basically I want to have a scrollable map ie. you can grab it with your mouse and move it. Exactly the way google maps works (although I'm not terribly concerned about the inertia effect that google maps has). But I also want to have objects on the map, that when the map is moved, they also move, but I can grab them individually also, and move the objects. Obviously when I nest these objects in the background symbol, they lose their independence and therefore can't be moved separately from the map. And I've been having difficulty making the objects follow the map, while maintaining their own position (they just snap to the maps position).
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Apr 7, 2011
Is there a pointer/tutorial on how create something similar to the following sites: [URL]
It appears that there are multiple layers that move at its own speed when rolling left or right.
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May 18, 2009
I'm trying to get my movable button to stop activating. It's looping (up/over/down/hit).
loupe_mc.onPress=function() {
this.startDrag();
};
loupe_mc.onRelease=function() {
this.stopDrag();
};
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Jul 23, 2011
I figured that Flash would be the best for the result I'm going for. I am making an Adobe Flash website and part of the website includes a box that is draggable and movable around the screen. So, to keep it simple, how can I make it movable?
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Feb 3, 2011
Is it possible to have a movieclip loaded to the stage not movable, but after a certain amount of time you can click on it and drag it to where you want it to go, and if so how would you go about doing that?
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Feb 25, 2009
I have a Large moveable object that can be clicked and dragged around the movie, but how can I make so that if I border off an area of the movie the objects movement is limited to those corners. So the top left of the object cannot be dragged further than the top left corner of the border and so on.
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Feb 3, 2010
I need to make my the images in my website movable. I found this [URL] but I just need a simple and easy version.
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Feb 3, 2010
I need to make my the images in my website movable. I found [URL].. but I just need a simple and easy version.
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Mar 12, 2011
I recently came across a small business site that had a homepage with there logo and some basic nav in the center with the business logoBut there entire background had a moving flash background made up of photos in the shape of words, that when you moved your mouse to the left, the background would move to the right, up and it would go down and so on as if it followed your mouse but inverted.
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Aug 11, 2004
I know there's all these posts on how to use For... loops to hittest, but no matter how hard I try, they just don't work. So, after hours of hair tearing, paceing and starting a new game I've decided to bother you all for help.
My situation is that in the game I'm making, I have a movable turret firing duplicated bullets. I need to hittest them against a duplicated set of oncoming robots. I've tried using a for loop, but I just can't get it to work.
I've attached the .FLA, and I would be grateful if anyone could point out what I'm doing wrong (ignore the values for removing the clips and the random duplication; I had to shrink the stage size to make the file size smaller
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Oct 13, 2004
I've made a site with small draggable "popup" windows (not actual windows since they are objects in flash..) I can drag em off the scene outside the edge. I've attempted many things.. A adaptation of the collision script found through search.. (on collision it stopped dragging) Worked nice, until you move the mouse real fast, then it can pass right through or partly through and the fact that it's stopdrag. It takes effort to get it from the edge. It's stuck basically.
I fixed it by making the on (press) change frame in a moveclip containing the border.. had a side effect though.. You can now drag the window out from the scene if you repetitively drag it towards the edge. Is there a way to limit a movieclips possible X & Y positions? (in both + & - range to make it a 4 cornered block). I also want the moveclip to keep moving up/down if if hits the right/left edge if you continue dragging it up/down (same with left/right edge also)
I tried the scrip from the "dynamic mask":
onClipEvent (enterFrame) {
getlimits = _root.normalpic.getBounds(_root);
if (_root._xmouse>=getlimits.xMin && _root._xmouse<=getlimits.xMax && root._ymouse>=getlimits.yMin && _root._ymouse<=getlimits.yMax) {
this._x = _root._xmouse;
this._y = _root._ymouse;
}}
I changed the size of the "normal pic" and it works lovely.. but it's on enterFrame... and I need to react on on press and on release.. : tried to adapt it but cant figure out how.. and besides the script don't allow movement along the edges (like I described above) and if you move the mouse fast enough the window stops short of the edge..
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Nov 1, 2005
I have a rotating menu that sets the selected button to the 3:00 position once clicked. I need the labels for the buttons to stay in the upright position as they rotate with the button. I have attached an image. Anyone know of an action script that would keep the labels upright?
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Oct 26, 2011
How can i make a MovieClip object drag able by the mouse? If i have two MovieClip instances, is it possible to make a new shape/MovieClip objects in that looks like a line and which will connect then? I have functions checking if the 'nodes' movie clip instances collide with the 'line' movie clip instances, now these all are different functions and conditional, but is it possible to check if ALL of them are true?
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