What I've done so far is using your mouse you (click & release) you shoot a ball off in that direction using radians. Now what I'd like to happen is when the ball hits the wall it bounces off in it's reflection angle. Eg. if the ball hits the right-hand-side wall travelling at in a radians of -0.65 it should bounce back in the radians of about -2.5
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I'm not a genius in geometry, I'd like to find a point in as3 with the radius and a angle but I don't remember the rule, I know this should be simple!
View 3 RepliesI am looking for a way to find a vector if I know one point and 1 angle. Like I have A(x, y) and a vector starting from A(x, y) with an angle. I would like to know the position on a point X (x, y) that can be anywhere on that vector. I only know the coordinates of A and the angle. Possible?? I guess it has to be a function...
View 5 RepliesHow can we find out a moving movie clip's angle. I'm trying to make a shooting game in as3, I need to know the angle of the movieclip(bullet) when it gets hits on the wall. i.e., I have a movieclip named "ball", and which is moving with some speed and the coordinates are initially created by the gun's positions.
Code:
var angle:Number = gun.rotation - 1;
var bubbleX:Number = gun.x-130* Math.cos(angle * Math.PI / 180);
var bubbleY:Number = gun.y-130 * Math.sin(angle * Math.PI / 180);
var ball:MovingBall = new MovingBall();
ball.x = bubbleX;
I need to know, what is the angle of "ball" after it hitting the boundary areas..
At the moment I am using two mini objects within the line to calculate the slope of the line I have.
I was wondering if there was some easy function within as3 to find the slope of a line that had been drawn out, if not... I suppose I have my own theories on how to do it, such as checking for hit tests in a circle until I find the line.
i've added this reflection class [URL] to this simple .fla file, but i can't see any reflection [URL]
View 2 Replieswat's the difference between finding a angle using Math.atan2(y,x) function and by finding using the movie clip's rotation (mc._rotation*Math.PI/180);
View 9 RepliesI have a simple code snippet as follows:
ActionScript Code:
testangle = Math.tan((-stage.mouseY+marker.y)/(stage.mouseX-marker.x));
trace(testangle);
In the swf I simply moved the mouse around the stationary object marker and read the results. For some reason I'm getting crazy values like -20 and 18. Why on earth is that? I thought radians in flash had a range between -PI and PI.
I have an object that rotates based on the mouse positionand I'm trying to count the degrees as it rotates.for example if i rotate 200 degrees cww the degree measurement is 200if i will rotate another 350 degrees cww the degree measurement will be 550now if i rotate 150 cw the measurement will be 400 now.I have this code: (it counts radians, but it is the same idea)p1 = mouse position
PHP Code:
theX theY =
p1.y - 250;radian = -
[code].....
I am not sure 1/maht.tan in flash gives the answer in radians or degree.
anyway, how cna i change? I mean, whats the code? (script)
1 last thing,
I wanna count cot(north / south)
does: 1/math.tan(north , south) does it?
I mean, what comma stands for? - + * / ??
I 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;
Ive made this rotation with AS. But Id like to make the bar to move from angle A to angle B smoothly.
How can I do this?
i have one problem. i create one circle and i placed more than one points outer of circle (the points are created dynamic).
View 1 RepliesI have a program which must convert degrees to radians every frame and use this value to change a variable. After a while, I notice that the variable becomes way different than what it should be, because of the slight inaccuracy when converting degrees to radians (I multiply to value by pi/180). I was wondering if there is a more accurate way to convert or maybe a way to use Math.cos() and Math.sin() with degrees.
View 4 RepliesI am currently learning some trigonometry tome with my actionscript...In AS I am aware that angles need to be converted from degrees to radians to use certain Math properties, such as Math.sin...etcHere is my code to convert degrees to radians...
ActionScript Code:
var degrees:Number = 90;
var radians:Number = degrees * Math.PI / 180;
[code].....
I have been looking at how to reflect a point in a line, and found this question which seems to do the trick, giving this formula to calculate the reflected point:
Given (x,y) and a line y = ax + c we want the point (x', y') reflected on the line.
Set d:= (x + (y - c)*a)/(1 + a^2)
Then x' = 2*d - x
and y' = 2*d*a - y + 2c
However there are two problems with this implementation for my needs:
My line is not described in the form y = ax + c (so I'd have to translate it, which is easy to do, but it means the process is slower). What if a is infinity ie. a vertical line?
Is there a simple way to calculate (x', y'), the reflection of point (x, y) in a line, where the line is described by the two points (x1, y1) and (x2, y2)?
Edit:
I've found a formula which does this, but it seems as though it does not work with lines that look like they have equation y = x.
Here it is in actionscript:
public static function reflect(p:Point, l:Line):Point
{
// (l.sx, l.sy) = start of line
[Code]....
Is there a way to "reflect on" static members of an ActionScript object (get all the static properties/methods of that type programmatically)?
Why is that flash.utils.describeType(*) can only show non-static members?
I have a image loaded in a sprite, the image is from a remote location [URL]. Once the image is loaded in the Loader Object i then want to create a reflection of the sprite that contains the image. Now this works when i run the application in flash IDE but when i embed this flash application inside a HTML page the reflection images do not work. Why is this, the code is below.
////////////////////////////////////////////
// Project: Flash 10 Coverflow
// Date: 10/3/09
// Author: Stephen Weber
////////////////////////////////////////////
[Code]....
I'm attempting to code a system to handle real-time refraction and reflection of light in 2 dimensions (on an x, y Cartesian plane, basically) and I'm hitting my head against the wall even figuring out where to start on this. My concept for how this should behave goes like this: There is an object that shoots a ray of light (a laser beam or something) toward a target object. When the ray intersects with the surface of the target, somehow I need to find the normal vector to the surface of the shape at the point of intersection and apply some equations from first year physics to alter the path of the ray appropriately. The same refraction effect takes place as the ray exits the object. At the moment, I'm grasping for straws. I'm not even sure what kinds of objects exist in Flash's libraries that will work for me with this. The existing libraries for shapes won't let me create lenses like I want to, and I'm not sure what I'll need to make for an adequate "light" projectile or line to take on this behaviour.
View 11 RepliesAny know any hints how to create a reflection of an object via starling framework?
View 1 RepliesI have this code :
var a:Apoint = new Apoint();
a.x =0; a.y=200;
addChild(a);
var b:Bpoint = new Bpoint();
b.x =275; b.y=100;
[Code]...
I'm working on an interactive animation for a university assignment. Here in this scene the user is able to turn a safe dial left and right either using on screen buttons or keyboard keys. The trouble I'm having is trying to write an IF statement to detect the angle of the safe dial so when the dial == an angle of rotation the scene goes on to play the next frame of the animation.
Code:
import flash.events.MouseEvent;
import flash.events.KeyboardEvent;
[code].....
How to keep a MC a certain distance from the mouse cursor regardless of angle?
View 10 RepliesI want a random angle ranging from - let's say - 10 to 80 (degrees). I got some code but there seems to be a bug inside of it. It calculates a random number (working) between 10 and 80. But when I paste it into the other variable (astAngle1) it's generating a random value not higher than 56(???)
Code:
var randomNumber:Number = ((Math.random() * (80 - 10) + 1) + 10);
trace(Math.round(randomNumber));
[code]....
I am new to actionscript 3 and I wanted to know if anyone could direct me to some websites (Tutorials) which can help me create a gallery like the one in the link but using AS3. Any help would be really appricated, I am not asking for the code just tutorials I can use to create someting very similar to it. [URL]...
View 4 RepliesFlash Tranformation Matrix via JsFL. I have to write a JsFL script that creates a text on my Flash scene, and rotate it with a random angle. Imagine I want to create and rotate a "Hello World!" at 45 degrees, my code looks like that:
rotateAngle = 45;
//creates my new text at x:0, y:0 coordinates
fl.getDocumentDOM().addNewText({left:0, top:0, right:10, bottom:10});
fl.getDocumentDOM().setTextString('Hello World!');
var mat = fl.getDocumentDOM().selection[0].matrix;
[Code] .....
The problem is : the rotation applied to my text is 58.3 instead of 45. I have to admit that I'm kind of noob with matrix... so I used the "matrix transformation for rotation" here : [URL].
I have a rotation value in degrees(0-360) and a value for magnitude, ie (1-10 pixels per second).
How to apply this information to determine what to add to an objects x and y values to send the object off in a given direction at a given speed ?
Is there a way to make a MovieClip reflection using fully actionscript 2?
View 5 RepliesI have a picture that I want it to look like its sitting in the water how can I do this I have no clue is there water reflection effects in AS3 Flash?If there is can I have an example?
View 1 Repliesi am using 2 instances of an flv, and as you would expect they arent sync'd.so how do i 'clone' an flv in AS3 so that they are exactly the same?i have seen an example, but it was AS2, i am working with AS3, cs4..[URL]
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