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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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.
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.
how to do an effect like the one seen on this page?: http:[url]....
View 1 RepliesI 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].....
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?
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]....
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.
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?
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.
View 7 RepliesI 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...
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]....
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;
}
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.
View 0 RepliesHow 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.
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].....
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?
View 8 RepliesIm pushing Point locations into an array to Shift em out later. like this:
tempmoves.push([new Point(roundx,roundy)]);
..
ob.movestoplayer = tempmoves;[code]....
What am i doing wrong?
It's been a long time since I've done any work with actionscript, and alas I've forgotten nearly everything. I've tried to look for a tutorial that would explain basic animation with actionscript, but the one that I found on Kirupa was no longer there.
Basically I'd like to do this:On the stage I have a movieclip and I'd like the movieclip to move along the x-axis to a certain point and then back to the starting point again. The moving speed of the movieclip should also be adjustable.
I'm creating a game in flash for a university project, and learning actionscript and programming as I go. I'm very much still at a beginner level - at the moment al I have is some actionscript for drawing rectangles and moving them about the screen. This is what I'm having trouble with at the moment: I have a class called 'Creature', and I want instances of it to interact with each other. I want them to do something when they come within a certain distance of another instance. And I want them to be able to pick a random other instance to get the location of, in order to do something with that information.
What I think I need is: A function for telling the distance between two (x,y) points.
A way of referencing the nearest other instance of the class. And a way of randomly selecting from all of the instances of the class.
How to convert 3d point to 2d point? I've found next formula in Internet(camera is situated in origin)
[Code]....
But these formulae give me strange result when z are less than zero(z<0) I need build line from A(100,100,100) to B (100,100;-100) As you can see these equations give really strange result when I try to convert B point in 2D dimension
i have the follow issue :
I have a point which is setted at the border on a component, with changed transform point to the center of a component in order to match the component rotation.
the important part is when i try to get the point XY after rotation - they remains the same as before rotation.
how to get XY, after rotation ( changeing point.rotation property to specific degrees of rotaion )
I am using AS2 with Flash 8 Professional So, my problem is that I currently have a man in the middle of the screen, who shoots a line towards the mouse when I click. However, when I use hitTest to see if the line collides with another object, Flash recognizes the line as a large box if it is diagonal, so the hitTest isn't very accurate. The line only satys there for one frame, so I can't have the usual moving-bullet-style. I am either looking for a way to create an imaginary line with AS from the starting point to the mouse and beyond, and tell whether or not this line intersects with an object... or some other way that I haven't thought of to fix my problem. Keep in mind that the line rotates from a center point towards anywhere around it for 360 degrees.
View 1 Repliesif i have a movieclip or a sprite could i find (via code) where is its registration point compared to its top left point (no rotation included) ?
View 4 Repliesmy preloader bar isn't growing smoothly. it appears to jump from point to point -- and i want to make it smooth. you can see the example here at: [URL] would anyone mind taking a quick look at the file i've attached,
View 6 RepliesI know some basic trig. but how do i find an angle from an anchor point and a moving point?
adjecent = _root.anchor._x-_root._xmouse;
opposite = _root.anchor._y-_root._ymouse;
hypotenuse = ((adjacent ^ 2)+(opposite ^ 2)) ^ 0.5;
How can I move a point (or circle) slowly and the point let behind a line.When the point turn back the line will be erase.
View 8 RepliesHi I am trying to create an image scroller that just scrolls images from point a to point b on load horizontally in an infinite loop. I just used a code snippet to move it horizontally but don't how to get it to stop and at point b and loop again from a.
ActionScript Code:
game1.addEventListener(Event.ENTER_FRAME, fl_AnimateHorizontally_3);
function fl_AnimateHorizontally_3(event:Event)
{
game1.x += 20;
}
Lets say I have two objects, and I want to use action script to draw a line connecting them, which will update automatically as they are moved/ dragged.Can anyone show me how to do that, and also how to control line's parameters like colour, weight etc?
View 1 RepliesI am trying to develop a Quadratic Bezier Curve using the graphics.curveTo() method. Initially when i drag mouse to draw the shape, i use start point and end point of mouse to draw the curve line. I assume control point at any position below or up to the line. An draw the curve using this control point. some what like:-
[Code]...
Now i add a tip on this curve segment. I have x and y position of tip. I want to change the curve segment by dragging tip. but now i don't have the exact control point according to tip position. If i use tip coordinate as control point it reduce the height of curve and now tip does not lie on the curve segment. What i have to do is calculate the exact control point on the basis of tip coordinate. But i failed to get this point.
