Thanks for lots of helping!

BluePhaze: my capx is kinda of complex now and I used several custom plugin/behaviors in it so you might not able to open it:/ But I take some screenshot to explain it:

This is the layout. As you can see I have many sprites obj block out the level in stead of tiledbackground, because sprites have image point so I can use them to generate visual objects, and sprite can be scaled up so it will make some blur effect I need.

<img src="https://dl.dropbox.com/u/1396615/bugImage/TooManyInstancesImage1.jpg" border="0" />

<img src="https://dl.dropbox.com/u/1396615/bugImage/TooManyInstancesImage2.jpg" border="0" />

Ashley : I have iphone 3gs on iOS 6, ipad on iOS5(6 is not supported )

Arima : I tried your suggestion and set most objects to invisible, the framerate doesn't change too much, but a little more stable. Is there anyway to test on-screen overdraw? because I do have several overlay from foreground to background.(I even have a full-screen overlay for gradient effect)

And thanks for the suggested plugin, I will try it out:)

cincipon, Do you mean x=center.x*cos(a)-center.y*sin(a) ?

Is there any constant or variable for orbiting speed?

Hi, I wonder if anyone know how to make a ellipse movement and tilted?

<img src="https://dl.dropbox.com/u/1396615/bugImage/ellipse.png" border="0" />

I know how to make a circle and standard ellipse. example:

Object.x = center.X+cos(time*300)*200

Object.y = center.Y+sin(time*300)*300

This might be an old question. so I want you guys give me a suggestion:)

So the situation is:

-My layout is farely big.

-There isn't too much on-screen objects but it can be about 400-500 instances in the whole layout.

-I tried use tiled-background as much as possible but for the graphic quality I can't reduce sprites anymore.

-I also have many invisible tiledbackground objects for cheaper collision.

-the averange FPS on ipad 1st gen is 20fps, iphone 3gs is 15 fps (with cocoonjs). it has no problem on PC.

so should I trying to cut my map into several layouts? or is there any way can help?

Yes, I made one by MoveTo and PushoutSolid behaviors

https://dl.dropbox.com/u/1396615/bugImage/PushOutSolidIssue.capx

Thanks rex! the push out almost solve the problem! Actually I was using the 8-direction for colliding with solid object, but there seems a bug when slide alone solid: if the moving object and solid are both square, slide to right/up direction can be much faster than to left/down. Do you have any clue about this?

Hi Asheley, I have tried many ways but I can't find a good way to use single behavior to reach the result. Is it possible for you to add similar feature for bullet movement? or maybe add 360 move direction for 8-direction movement behavior? so appreciated.

I'm not completely sure what you're on about, but you should look into using Pathfinder in conjunction with Moveto.

I mean when moveto object hit the solid object in a angle, can it slide along the solid object? I have the similar example capx attached:

dl.dropbox.com/u/1396615/bugImage/8DirectionCollisionIssue.capx

I don't want to use Pathfinder in this case since the gameplay/control experience is not I wanted.

Link to .capx file (required!):

dl.dropbox.com/u/1396615/bugImage/8DirectionCollisionIssue.capx

Steps to reproduce:

1. Run capx;

2. Click and hold mouse to move red square object to cursor;

3. When object hit wall, try move cursor to make it slide left and right;

Observed result:

Object slide speed to right is much faster than slide to left. slide up is much faster than slide down.

Expected result:

Object should slide with same speed in all direction.

Browsers affected:

Chrome: yes

Firefox: yes

Internet Explorer: yes

Operating system & service pack:

Windows 7

Construct 2 version:

r120.2

I'm using the Moveto behavior plugin a lot, made by rexrainbow, it works smooth like silk. Just once thing is not perfect: when collide with solid, I can only set it to stop in event. Is it possible to make it glide along the solid collision? similar as the default feature for 8-direction behavior.

I just noticed that the tiledbackground object not show up in the family list. Is it a bug or its impossible to put them into the family with other sprite objects family?

Thanks for the example and hint!