I have the values (x, y, xSpeed, ySpeed) of the movieclips (Hero and Badguy)Now, when they collide, how will i calculate how hard the collision is?Obviously weight, acceleration, etc. are out of the question, as it just needs to be based on their speeds.
View 4 RepliesI am trying to figure out the collision physics for a top-down racing game in Flash / AS3. I am currently using the hitTestPoint method for detecting collisions, but I don't know how to apply a decent physics method to bounce a vehicle off of a wall that it hits.
View 2 RepliesI need help with one of my Flash projects,I'm trying to use gskinners shape based collision detection, but for some reason I cant get it to work, but im pretty new to using classes, so I dont understand the structure too much. Can i get a tutorial on how to use the gskinner class? im using the as2 version.heres the code, bare with me, there's a lot here. in all codes, mc1 is the track outline MC, and mc2 is the car
basicly im making a 2D top down version of WipEout HD Fury, so file structure is something like this (the .fla is called wipeout as3 because i was initialy coding in as3 and never changed the filename).wipeout as3.fla (the flash file containing all the MCs and animations, but only enough coding to import all of the external code files, as well as the VCam and its script)
the code is;
Code: Select all #include RaceControl.as"
the RaceControl.as is used to determine the Car's control scheme, and refers to a physics code called RaceCar.as. i found it on the interwebs, all credit to matt carpenter;
Code: Select all// Race control
// Create key listener[code]........
the Bounce Function is my own work, and is what i want to happen when a collision is detected.now, the movieclip used for the car is my own drawn design, as is the track, and i want to use GSkinner's shape based collision to detect the collisions properly. so far i have the car driving around quite happily but i need it to collide with the walls of the track, rather than drive right through them.
I am creating a ping pong game. And I want to create the ability to control the direction of the ball based on the impact on the paddle. If the ball is coming down at vy = 4; vx = 4;
and the paddle is moving to the left at vx = -5; I want the ball to slightly change its course depending on how fast the paddle is moving. It would probably reduce the balls vx speed on collision, therefore making the ball move more straight (close to the Y axis) when it is moving back up.
I figure the solution for probably doing this would be to measure how fast the paddle is going. My problem is the paddle is controlled by the mouse and has no certain speed. I am trying to figure out how I can measure the speed of my mouse traveling on the x axis.
I am probably going to create a timer that fires every few seconds to determine where the mouse was and where it is at. figure the difference and that will be the speed
I wanted to study some physics code lines related to flash actionscript 2.0.Is there anyway to build a model with physics incorporated without a physics engine? By bare actionscript?If yes, can anyone show me a tutorial or an explanation to learn somehting about it, please?
View 0 RepliesI know you can add a var to add grvity and velocity ect. But what are the limits of this?Can i have a ball roll downhill using physics from within flash, without a external physics engine like box 2D.Can i have impulses? Well thats not important just wondering really.What can you do with physics in flash?
View 5 RepliesI'm tweening a movieclip from startX to finishX. The value of startX varies but finishX is a constant. But as the startX increases in value the animation appears to be quicker. How do I adjust the speed of the tween to ensure a consistant speed regardless of the value of startX?
View 1 RepliesI want to make a game using physics in Flash, so I stumbled upon Box2D, but i find that hard to use [the basics are simple, but when i see the scripts,so i was wondering if there are easy to use flash physics engines?
View 6 RepliesThere are some open SDK for Flash, that could be done. Rotating photos with physics? Examples of such programs BumTop, ePic, Coloris (no physics). The photo on the plane, it can be moved to the real physics?
View 1 RepliesYou know how adobe promised us physics in flash?URL...If you've been wondering why they left it out, turns out they didn't.URL...
View 4 RepliesIntroduction: I think Nape is a relatively new engine so some of you may not know it. It's supposedly faster than box2d and I like that there is decent documentation. Here's the site: [URL] I'm relatively new to programming. I am decent at AS3's basic functionality, but every time I try to implement some kind of engine or framework I can't even seem to get it to work. With Nape I feel I got a little further than before but I still got stuck.
My problem: I'm using Adobe CS5, I managed to import the SWC file like described here. Next I tried to copy the source of one of the demo's like this one and get it to work but I keep getting errors. I made a new class file, copied the demo source to it, and tried to add it to the stage. My stage code basically looks like this:
[Code]...
I've made a character, and used the bone tool to make it move in runtime.This works fine, but now I want to add gravity/physics, so I can throw my character and it lands on the ground like a real ragdoll. How do I do this in actionscript 3 ? And is it possible to do this within the fla (no class file).
View 1 RepliesOkay so I need to make a basic activity (working Flash/as3) that simulates very basic weighing scales. All the objects that go on to the scales are the same weight.
If you imagine the classic weighing scales [URL]..we are dragging/dropping stuff on to the sides and animating accordingly.
I don't want anything fancy, just the maths required to affect the scales according to how many objects are on each side.
What I'm looking for is probably the angle of rotation of the horizontal arm. Any pointers?
In my file (AS2), I have a small square at the middle of the page. Diagonally to the right, I have a vertical wall which is a rectangle. Pasted inside my small square, I have the code:
onClipEvent(enterFrame) {
if (Key.isDown(Key.RIGHT)) {
if (this.hitTest(Wall._x, Wall._y, false)) _x =
[code]......
I want to add an animated .gif file to my movie. So I created a new symbol and then imported the .gif file to the stage. This created the symbol containing the animated .gif.I dragged the symbol onto the scene where I want it. However, the animation seems to play at a different speed (fps) than normal. So I changed the fps of the symbol (at bottom of Timeline where it says "fps"). But for some reason this changes the fps of the rest of the entire movie.
View 3 Repliesis there anyway to change a songs playback speed depending on a speed variable. heres the kicker tho im limited to using only as2.
View 2 RepliesI have a movie clip on my scene which has a speed applied to it making it move across the screen. This is duplicated when it reaches the other end of the screen.On my scene I have some action script which is acting as a timer. After a set time I want it to increase the speed of the movie clips, making the game become "harder". I seem to be able to manipulate the alpha of my movie clips but can't seem to trigger the speed increase.If i use a setInterval it seems to trigger the speed increase but it does it each time the movie clip is duplicated (so the delay resets, it does not change once and apply throughout)However, where I am changing the alpha I cannot seem to change the speed.
View 2 RepliesHow can i detect mouse speed with AS 3.0, and then put speed limit? Also can i use speed var for anything else? *sorry for my bad English, i live in non-english-speaking country*
View 9 RepliesHow can I detect a PC speed our cpu speed with actionscript?
View 1 RepliesI am in need for some 2D physics seen from "above and straight down". Basicly I can sum it up with a "throwing balls into walls" kinda physics.
There seem to be quite a few physic engines for as3 out there, but I wonder if anyone have anyone special to recommend regarding my particular need as well as performance of the engines.
I'm trying to create a simple top game. Except, the movement of toy tops isn't so simple.I've been able to get the top to trace out squashed loocking spirals. However, the motion isn't random and there's no object detection. I was thinking that some variation of a bouncing ball script might work. However, the movement would have to be confined to the appearance of a perspective plane (so that it looks like it is spinning on something flat)
View 11 Repliesi was just wondering, how could you make realistic car driving, with regard to turning, braking, backing up etc.....
View 4 RepliesI need to animate little blocks to fall down when rollovered... but i want them to start falling and keep falling once mouse hittests with it... so when the mouse isn't over the clip... it keeps falling... does anyone know how i can do this? and if anyone knows some good actionscript for elastic falling with slight rotation that would be sweet....
View 5 RepliesSome time ago i played this great flash game I want to create a simple level where you can walk around, just like in that game. But i was wondering what kindof physics engine or collission detection i would need if you want to walk over hills or objects where the persons reacts to
View 2 RepliesI have been trying to see how this splat effect animation from some sort of "paintball game" works. I think this is using an open-source APE(Actionscript Physics Engine).Actually, I guess it's the one from cove.orgAs I cannot post links yet I'll tell you where it is.If you don't feel like wanting to look for it,I can PM you with the link to it.Write this in the google bar : "Minijuegos"+"Battle Paint" // that is the name of the game.There is a class named "Floor" which is used in the menu of the game, where random splat shots start appearing in the background. I am trying to figure out how it works.This is the class code: I think everythig related to the splats is in there, but still don't see which functions make the whole animation.
The key must be in functions: generateSplatter","createSplotch","generateSplotch","generateSplatterHd","addSplatterHd","addColor"(I think this function adds color to the splatters, which is not so important right now) and that's all with the functions.There is an array, ThePaintSplatArray( must be an array containing a lot of particles, which are bitmaps of small circles i guess)I'm not used to working with AS.That's why I'm doing a deep analysis of the code to understand the way it works.he code was way too long to put it here. SO I zipped it up. YOu will found the floor and particle(what makes the physics stuff work) .as files.
Im trying to find some examples of graphical representations of physics/mathematicsformulas. You know, where a pattern is drawn based on that formula.
View 3 RepliesAs the title suggests i want to apply physics (gravity mainly) to a line drawn with the curser using the createEmptyMovieClip method.Below is the code in the main frame (sorry its a bit long), what I'm trying to do is make something like crayon physics (i know it will be difficult).So far i can draw lines and make certain objects ( a ball for example) be affected by gravity, but when I try to make the drawn lines be affected by gravity it stuffs up.he first line drawn is produced in the wrong position, (it should be at mouse point but isn't) and you can't draw any subsequent lines. This problem doesnt exist when i remove the gravityBasically what i want is that each line that is drawn can have actions assigned to it... (so i can add gravity and unique properties for different line types)
//force settings
//Drawing tools
_global.general = 0x0000FF;
[code]....
I need to add a small amount of physics to some moving elements.I found flade, but it looks like overkill for what I'm looking for. Also, all the examples are side-views with gravity.
Basicaly, I have a top-down view, and have square shapes that I want to be able to slide along a wall when they hit it at an angle. They don't even need to rotate when they make impact. I tried comming up with my own solution, based on the relative rotations and quarants they collide on, but it is very clunky. I can't help but feel there is a better way to do this. Heck, there might even be some usefull ActionScript function that I don't know about.
I admit it. I'm a mathematical imbecile. should I be attempting this at home? Probably not without serious injury. Anyway. Anyone that has a bit of experience in games and physics who can review this code and provide insight into why there is a built in "loss" in velocity in prototype would be hugely admired.
the concept: the actor falls from the sky, at some point intersects a boundary (trampoline.y) after which gravity (in this example a value of 1.6) stops operating and a restitution factor (in this case a value of -6) takes over.
right now I'm trying to create a zero-sum situation where you have the same velocity coming out of the trampoline "bounce" (hero.y >= trampoline.y) as you did going in. That's just not the case as the traces reveal.
[Code]...
For now I'm hoping to have a solution where the velocity on the tic after the character leaves contact with the trampoline is the same (but negative) of the velocity just prior to going in. Heck I've even tried storing and retrieving the entry position and velocity, but that just looks like a hiccup.
I'm creating a ball bouncing in 3d. My problem is that I have a square boundaries. top,bottom, front, back. I tried get the the distance ( of the sphere/radius) but went I * vx , vy , vz by 1 or -1. One of the position is - while the other two might by positive. I need pool ball physics with the boundary be a 3d sphere.
View 9 Replies