What I want to do is:
After colliding with an [object], I want the screen to flash for about half of a second. I have tried for loops and while loops but they seem to not work. I have no idea how I should program this.
I've been trying to figure out how to do this since I'v been making the game so it would be helpful if someone could help me.
Thank you for reading.
You need to use something that involves time. loops all run in a thread which doesn't pause for time - which is why they don't work.
Here is how you could do this with an AS3 Timer (let's say this code runs right after you've determined there's been a collision)
function flashScreen():void {
var timer:Timer = new Timer(50, 10); //run the timer every 50 milliseconds, 10 times (eg the whole timer will run for half a second giving you a tick 10 times)
var flash:Shape = new Shape(); //a white rectangle to cover the whole screen.
flash.graphics.beginFill(0xFFFFFF);
flash.graphics.drawRect(0,0,stage.stageWidth,stage.stageHeight);
flash.visible = false;
stage.addChild(flash);
timer.addEventListener(TimerEvent.TIMER, function(e:TimerEvent):void {
//we've told AS3 to run this every 50 milliseconds
flash.visible = !flash.visible; //toggle visibility
//if(Timer(e.currentTarget).currentCount % 2 == 0){ } //or you could use this as a fancy way to do something every other tick
});
timer.addEventListener(TimerEvent.TIMER_COMPLETE, function(e:TimerEvent):void {
//the timer has run 10 times, let's stop this flashing madness.
stage.removeChild(flash);
});
timer.start();
}
Other ways you can do this are with setInterval, setTimeout, a Tweening library,and an ENTER_FRAME event handler.
Related
I've run across a piece of code that I'm really struggling to get working... It's meant to wait three seconds before fading an object (swslogo), however when I test it, it doesn't seem to work.. anyone know why this might be
var GameMode:Number = 0;
swslogo.alpha = .0;
var IntroTimer = new Timer(4000,1); //add a 4 second timer
IntroTimer.addEventListener(TimerEvent.TIMER_COMPLETE,swsfadein);
intro();
function intro(e:Event=null):void
{
IntroTimer.reset()
IntroTimer.start();
}
function swsfadein(e:Event=null):void
{
IntroTimer.stop();
swslogo.addEventListener(Event.ENTER_FRAME, fadein)
}
function fadein(e:Event=null){
if(swslogo.alpha <=0){
this.alpha +=0.1;
if(swslogo.alpha >=1){
this.removeEventListener(Event.ENTER_FRAME, fadein);
}
}
}
Edit: Removed accidental line that wasn't meant to be there
From your last few questions I can tell you totally need to learn what a program is, in general, unrelated to AS3 of any other given language, instead of struggling with random pieces of code while treating them like magic spells.
// This part is fine.
var IntroTimer = new Timer(4000,1); //add a 4 second timer
IntroTimer.addEventListener(TimerEvent.TIMER_COMPLETE,swsfadein);
// A method is called. It resets and restarts timer.
intro();
// Another method is called. It stops the times and starts the fading thing.
swsfadein ();
So basically that code in a single go:
Creates timer.
Starts timer.
Stops timer.
Starts fading.
Which obviously suppresses the intended use of the timer.
I am working with Action Script 3 for the first time. I am trying to animation few frames, i want to give a delay to each frame. I am currently using the below script on each frame for 20-frames in total.
stop();
setTimeout(function() { nextFrame(); }, 100);
here if i want to increase/decrease the delay i have to change the value in every single frame. I am pretty sure i am not doing the smart way. please help me out. Thanks in Advance Experts.
While the easiest solution would be to just adjust your frame rate to 10fps (the equivalent of 100ms between slides), there are reasons that may not be appropriate (animations inside the timeline etc).
Perhaps a Timer would be better.
Something like this:
import flash.utils.Timer;
import flash.events.TimerEvent;
//create a timer
var timer:Timer = new Timer(100); //fire every 100ms
//listen for it's tick, and run the timerTick function every interval
timer.addEventListener(TimerEvent.TIMER, timerTick);
//start the timer
timer.start();
function timerTick(e:Event):void {
//if the next frame is the last frame, stop the timer
if(this.currentFrame == this.totalFrames - 1){
timer.stop();
}
//go to the next frame
nextFrame();
}
On your individual frames, you can tweak the timer's delay (how long before ticking) or stop the timer all together. This can be helpful if you wanted to say pause for user interaction at some point, or make the delay longer/shorter for certain frames.
timer.delay = 200;
or
timer.stop();
I'm trying to make timer which goes up 1 every second and this is displayed in a dynamic text box called timer_txt.
When the timer reaches 60 secounds I want to display a screen, to do this I will use gameOver.visible = true;. But how would I get the timer to completely stop?
Also I want the car object to stop the timer completely when it hits the finish movie clip and to display the finshed time in a dynamic text box called finishTime. This is all on the same frame.
Would anyone please help me ?
This is the code I currently have to calculated the time but I'm currently having no luck.
var currentTime:int = getTimer();
//Setting the timer to 0.
var Secounds = 0;
function timer():void{
//Adding 1 to secounds var.
Secounds +=1;
}
setInterval(timer,1000);
trace(Secounds);
Use Timer instead of setInterval.
var timer:Timer = new Timer(1000, 60);
1000 — is a delay in ms.
60 — is a repeat count.
Timer will fire every second for one minute.
Next, add an event listener.
timer.addEventListener(TimerEvent.TIMER, tick);
timer.addEventListener(TimerEvent.TIMER_COMPLETE, complete);
and start the timer:
timer.start();
The tick method will fired (called) every second.
After 1 minute the complete method will fired (called).
To stop the timer call timer.stop();
I am trying to program a Phidgets device to repeatedly turn an external light on for .5 sec and off for .5 sec.
(these times correspond to Frames 1 and 11 of a 20 frame movie clip.
I've tried to insert the on- and off- commands into the movie clip, but they don't transfer to the main stage, so now I'm just trying to program the light to go on and off from the main program
The code below turns the light on and off at the SAME TIME- which means NOTHING HAPPENS.
Does anyone know how to delay the timer so that the off command comes 500 msec AFTER the on command ?
THanks
phid.addEventListener(PhidgetEvent.ATTACH,onAttach);
//connects Phidget to software
function onAttach(evt:PhidgetEvent):void{
trace(evt);
}
var phidControl:Timer = new Timer (500);
phidControl.addEventListener(TimerEvent.TIMER, lightOn);
function lightOn (evt:TimerEvent):void {
phid.setOutputState(0, true);} //this turns the light on
enter code here
var phidOff:Timer = new Timer(500);
phidControl.addEventListener(TimerEvent.TIMER, lightOff);
function lightOff(evt:TimerEvent):void {
phid.setOutputState(0, false);//this turns light off
}
it looks like you're creating two Timers which both run at a 500ms interval simultaneously.
It might be easier to put one function on a 500ms timer, which will call either function intermittently, something like
var lightIsOn = false;
function lightToggle(evt:TimerEvent):void{
if(lightIsOn){
lightOff();
}else{
lightOn();
}
lightIsOn = !lightIsOn;
}
---- UPDATE ----
I'm not very familiar with Phidgets, however that shouldn't make a difference in this case. Try this:
val = true;
var phidControl:Timer = new Timer(500); //If you don't set the repeat count it goes on forever
phidControl.addEventListener(TimerEvent.TIMER, lightToggle);
function lightToggle(evt:TimerEvent):void {
val = !val;
phid.setOutputState(0,val);
}
phidControl.start(); //Make sure you start the timer.
If you only want to switch it once every .5 seconds then you don't have to worry about reading the state of the light, just tell it when to change. So from what I can tell, you don't need the inputChange function.
I'm trying to make a dice game in Flash/ActioScript 3. I did all the essentials and it works smoothly. Now I want to improve the user experience. For instance, when it's computer's turn (to roll and do things according to die value) I want to animate the die. The die has 6 keyframes. So, for, say, 2 seconds the die will loop those 6 frames then it will stop on a value (depending on random generator). Somehow I can't do it as I want. How can I write a function(s) so that when I say,
animateDice()
it will do nothing but just animate the dice for a specified interval?
Update:
var timer:Timer = new Timer(10, 50);
myButton.addEventListener(MouseEvent.CLICK, onClick);
timer.addEventListener(TimerEvent.TIMER, animateDice);
function onClick(event: Event):void {
timer.start();
}
function animateDice(event: Event):void {
dice.play();
}
For instance, I don't understand why the above code doesn't work properly. It does work properly on first click, but not there after.
Update 2: I guess I'm still having problems. How do I suspend the running code until the timer stops? (Yes there is a work around---putting timer handlers inside other timers, etc. Is there an easy way?
Maybe, this will help:
First we see the die rolling (and a message box informs the user that the game will decide whom starts). Then it's either Human's or Computer's turn. When it's computer's turn, first we see the rolling die again for, say, 1 second. Then it stops and and we see the outcome. I'm a beginner and I nay be missing something, but from what I see it seems that all these simple steps (just showing the die rolling for some time) means lots and lots of lines.
If I use a simple timer for die animation, the script continues and the whole show goes away.
The timer object has three properties:
delay, or how often the event should fire
repeatCount, or how many times the event should fire
currentCount, or how many times the timer's event has fired thus far
You are creating the timer with new Timer(10, 50), which sets delay to 10 and repeatCount to 50. This means that, once you call timer.start(), timer will fire TimerEvent.TIMER every 10 milliseconds. Each time it is fired, it adds 1 to currentCount. When currentCount is greater than or equal to repeatCount (50), it stops looping the timer.
Once your timer has stopped, if you call timer.start() again, it will only fire the event once, because currentCount has not been reset to zero, and is still >= repeatCount.
If you call timer.reset() before calling timer.start(), it will set this value to zero and things should behave as expected.
var timer:Timer = new Timer(2000, 1);
myButton.addEventListener(MouseEvent.CLICK, onClick);
timer.addEventListener(TimerEvent.TIMER_COMPLETE, onTimerComplete);
function onClick(event: Event):void {
timer.reset();
timer.start();
dice.play();
}
function onTimerComplete(event:TimerEvent):void {
var roll:int = int(Math.floor(Math.rand()*6))+1;
dice.gotoAndStop(roll);
}
The timer is set to run only once, for 2000 milliseconds (which are 2 seconds). When Click occurs, the timer is reset (so that if it's not the first time it was clicked, it will run as if it was the first time) and started, and the animation starts a well. After 2 seconds, TIMER_COMPLETE will be fired by the timer, and we catch it and determine a final number for the die, then gotoAndStop to that frame.
I didn't try to compile the code, but the gist of it should work for you.
P.S, dice is the plural of 'die' :) you're skipping a great opportunity for the type of variable names we all want to use but can't!
You could try something a little more like this:
var t:Timer = new Timer(10, 50);
t.addEventListener(TimerEvent.TIMER, timerHandler);
t.addEventListener(TimerEvent.TIMER_COMPLETE, timerCompleteHandler);
t.start();
function timerHandler(e:TimerEvent):void {
gotoRandomFrame();
}
private function timerCompleteHandler(e:TimerEvent):void {
var finalNum:int = gotoRandomFrame();
// Using finalNum
}
private function gotoRandomFrame():int {
var num:int = Math.floor(Math.random() * 6) +1;
dice.gotoAndStop(num);
return num;
}
So use gotoAndStop to set your frame rather than using play