I'm creating a simple game with AndEngine. A ball is dropped toward a floor, and whenever it collides with the floor, I want to play a short colliding sound. In method onUpdate(), I check for collision and play sound accordingly.
I use class Sound for playing sound (as in the SoundExample of AndEngine). Testing on Samsung Galaxy S2.
The problem is the program gets lagged when the sound is played. And it even affects game physics (sometimes the ball bounces higher than the highest point when disabling sound).
This is the code:
public void onUpdate(float pSecondsElapsed) {
// mSound.play();
if (this.mSprite.collidesWith(ball.getSprite())) {
if (!colliding && mSound != null){ // play sound for first collision only
mSound.play();
colliding = true;
}
}
else{
colliding = false;
}
}
If I remove mSound.play() or keep playing sound (remove comment at line 2), the program works smoothly.
Does anyone encounter the same problem? And have a solution to get rid of the lag? Many thanks!
as that you mentioned that it works smoothly when you keep playing the sound .. then the problem is not with the sound
the collidesWith() method is probably your culprit, remember that onUpdate gets called every frame .. maybe you'll have to redesign your code or limit the number of frames per second [change your engine options to use a FixedStepEngine to achieve that]
Related
When navigating from menu to a Scene that contains 8, 1-minutes MP4 videos, that are played using new VideoPlayer script on RawImage component. I am using Unity 5.6.0b11 beta version.
In the scene that I am trying to navigate has prefabs that loads videos in list thumbnails, previously I was loading Images instead of Videos and it was working fine, now when trying to load video it freezes for than 38 seconds on Axon 7 (4GB RAM) and 32 seconds on One Plus 3 (6 GB RAM) but does not lags at all when playing on Unity Player itself.
Script I used for VideoPlayer is from this StackOverflow Question.
button.onClick.AddListener(new UnityEngine.Events.UnityAction(() =>
{
SceneManager.LoadSceneAsync("SceneSponsors");
StartCoroutine(CloseMenu());
}));
Is there a way, I can work around with the Slow Loading Scenes or pre-load them in Background when mainScene is loaded on the App start and navigate in need.
I saw somewhere Resources.Load() also makes it slow on Android Devices, but I've tested by removing all Resources.Load() which I was using to load image sprites but the problem was still there.
Edit:
Here's my CloseMenu() functions it is only used to swipe and move the menu panel. P.S the App freezes only on loading that particular Scene, and works smoothly for other.
IEnumerator CloseMenu()
{
if (IsOpen)
{
Vector3 pos = MainMenuWindow.transform.position;
iTween.ColorUpdate(CloseArea, new Color(0, 0, 0, 0f), .6f);
iTween.MoveTo(MainMenuWindow.gameObject, new Vector3(Screen.width, pos.y, pos.z), .6f);
IsOpen = false;
yield return new WaitForSeconds(.3f);
CloseArea.transform.position = new Vector3(-240 * ScaleFact, CloseArea.transform.position.y, CloseArea.transform.position.z);
}
}
Edit 2
I am loading VideoPlayer on RawImage using Script. Here's what RawImage looks like in Play mode along with VideoPlayer, and in inactive mode.
For my case of problem. I had to make some changes on the VideoPlayer API Script I was using from this StackOverflow Question
In the script I was using from that link. The Co-routine was started inside the Start() function, that made the videos in 8 different prefab, to load at once even they were in pause mode.
So I added a new function PlayVideoOnClick() and attached it to the Click Event of the RawImage, so now the video will be loaded only if the RawImage is clicked.
Changed from
public void Start()
{
Application.runInBackground = true;
StartCoroutine(playVideo());
}
To
public void PlayVideoOnclick()
{
Application.runInBackground = true;
StartCoroutine(playVideo());
}
P.S: You can also see my YouTube Video Tutorial and Blog on Playing Videos smoothly in Unity.
It is a well known bug that loading big scenes using LoadSceneAsync may block the gpu completely several seconds (completely unnoticeable in the editor), i´ve also been following this for quite some time now,
From the forums:
https://forum.unity3d.com/threads/starting-async-load-causes-massive-lag-spike.288755/
Official unity Issue tracker:
https://issuetracker.unity3d.com/issues/loading-a-scene-async-creates-huge-performance-spikes-for-the-gpu
I am new to Unity and I am trying to learn the basics, I learn physics at school(ten grade).
What I have done so far - added a ball to my project and used gravity on it with RigidBody.
I want to make the ball jump suddenly on air when there is some touch input, for example - flappy bird.
My script is basic:
void Update()
{
if (Input.touchCount == 1)
{
GetComponent<Rigidbody>().AddForce(new Vector2(0, 10), ForceMode.Impulse);
}
}
With this script, the ball is falling(gravity) and when I touch the script, is Y coordinate changes but it happens by sudden (no animation) and it changes by like ~1 and continue falling(I can't keep the ball on screen) , also I can make it jump only once, if I press multiple times it will jump only once, as you can see here:
https://vid.me/aRfk
Thank you for helping.
I have created same scene in Unity3D Editor and played a little with same setup you have. And yes I had similar problems adding force on Update and also (but less) on FixedUpdate. But adding force on LateUpdate seems to work okay.
Here is my code:
public Rigidbody2D rb2dBall;
void LateUpdate()
{
if(Input.GetKeyUp(KeyCode.Space))
{
rb2dBall.AddForce (Vector2.up * 10f, ForceMode2D.Impulse);
}
}
And also I turned on interpolation:
I cant say why the physics bahaves like this, could be some bug in Unity3D 5.X since on FixedUpdate it should work fine.
Firstly, when working with physics in Unity, it's highly recomended to use the FixedUpdate method, instead of the Update. You can check in this link http://docs.unity3d.com/ScriptReference/MonoBehaviour.FixedUpdate.html
The second thing is that maybe you are not applying so much force at the ball, the force needed to give a quite impulse will depends of the mass of your ball's rigidbody. So try to do something like that:
GetComponent<Rigidbody>().AddForce(Vector2.up * 100, ForceMode.Impulse);
Change the fixed value 100 to adjust your needs.
Thank you for looking at my post. So I was going to make an AIR for Android game, so I got to work, and, well heres the problem.
stop();
Multitouch.inputMode = MultitouchInputMode.TOUCH_POINT;
btn_Play.addEventListener(TouchEvent.TOUCH_TAP, fl_TapHandler_2);
function fl_TapHandler_2(event: TouchEvent): void
{
gotoAndPlay(91);
}
When ever I tap the btn_Play, it just goes to Frame 1 and plays. BTW this is on Frame 90. Please help!
if you have only 90 frames and you define
gotoAndPlay(91);
you will go to frame 1, change to:
gotoAndPlay(90);
if you have more than 90 frames probably you need to read this:
http://www.kirupa.com/forum/showthread.php?335765-gotoAndPlay%28%29-and-frame-script-stop%28%29
Have you wrote stop() method at end of the frame? if not try this at end of the frame or how many frames are you using kindly check that.
stop()
I have player and enemy objects on the scene. The enemies are generated randomly at the specified path, and the other one is player which is generated from the opposite side of enemy. I want to stop both these objects if they come some distance apart on the same path, and if any one of the two objects are destroyed by the firing then the other remaining object whether it must be enemy or player must start moving.
I have implemented below code, and it is working for the first time when they both are in front of each other and 200 distance apart. Suppose player fire the enemy then the enemy gets destroyed, and player starts moving but if now another enemy comes in front of the player then player does not stop, it keeps on moving, but the enemy stops. Please suggest some solution. Thanks...
for j=#enemy, 1, -1 do
if(enemy[j].y~=nil and player.y~=nil then
diff=player.y-enemy[j].y
if(enemy[j].x==player.x) then
if(diff<=200) then
enemy[j].Speed=0
player.speed=0
end
end
else
player.speed=-50
enemy[j].Speed=2
end
end
You are setting player.speed=-50 for any nil enemy[j].y
Perhaps you should move the line
player.speed=-50
to above the for loop. That way, the player will move by default, but can be stopped by any enemy.
I have made 2 different animations in Adobe flash professional cs5.5 for an Android aplication.
And I want a code that makes it possible for a user of the app to play the animation as often they want, so if the user wants the animation to play 1 time the first animation will be playes, if the user wants to play it 2 times the animation 1 and 2 will be played, if the user wants the animation 3 times played the animation 1, 2 and 1 will be played and so on.
Can somebody help me with this problem and tell me if this is possible in jquery.
If I was you, the way I would approach this is by having a keyframe after each of the animations where you can type some code.
On the menu page or where ever you have the code for how many times the code should run, define a variable and call it something like "runTimes" which should become the amount of times the animation should run.
At the end of the animations do a simple if statement to check what the value of "runTimes" is and then decrement it. Depending on the value, it should use gotoAndPlay/gotoAndStop.
So, put this on the keyframe after the first animation:
if (runTimes > 0) {
runTimes--;
gotoAndPlay(<FIRST FRAME OF SECOND ANIMATION>);
} else {
gotoAndStop(<FRAME OF MAIN MENU>);
}
and this after the second animation:
if (runTimes > 0) {
runTimes--;
gotoAndPlay(<FIRST FRAME OF FIRST ANIMATION>);
} else {
gotoAndStop(<FRAME OF MAIN MENU>);
}
On the mainmenu frame, let's assume you have a textbox named "numTimes_txt" for the number of times to play and a button "playAnimations_btn" to start the animations.
import flash.events.MouseEvent;
var runTimes:int = 0;
playAnimations_btn.addEventListener(MouseEvent.CLICK, playAnims);
function playAnims(e:MouseEvent):void {
runTimes = parseInt(numTimes_txt.text);
play(); // or gotoAndPlay(<FIRST FRAME OF FIRST ANIMATION>);
}
I haven't tested this as I don't have my IDE on me right now, but this should work if I understand the question properly.