I'm not sure spawning sprites at particles is possible, but why not just spawn the sprites you want to interact with with bullet behaviour. maybe using the particles as well to improve the look.

Why would you do that every tick? it's like saying every second turn the light of (even if the light is already off)

If you use platform behaviour you can set it's angle of gravity. Just set it's angle to the center of the planet every tick and you're ready to go..

Search the forums for thumb stick. There are many examples.

Pandemonium, actually MindfaQ is quite right.

To make a game like this you should:

• Learn the math behind the different bulletsprays.

Or..

• Learn to fake the math behind it.

One quick google search turned up This

create all the bullets in one event and sent them of flying in all the angles you want..

I'm working on it, but I will give you a small tip.

A very quick fix would be to set scale to scale outer and make your background a lot bigger. set unbounded scrolling to yes and set system scroll to x : 960

No problem!

e-mail: info-at-littlestain.com

<img src="https://dl.dropboxusercontent.com/u/48563442/game-art.jpg" border="0" />

Ah yes.. I remember it from a previous topic.

It works fine on landscape, but this is the kind of game you'd like to be able to play on both landscape and portrait, which is completely possible, by changing it's aspect ratio to square and adding anchor behaviour to the elements other than the puzzle area.

If you'd like I'll change your capx with comments on what I did, to make it work. You can sent the link through private message.

I think the biggest problem in answering this question is that there is no one-size-fits-all answer to this.

A lot of it depends on what kind of game you are making, if you want to support both portrait and landscape orientation, if parts of your layout can be clipped or not, if you want to use a background for areas outside the game-area or not, what kind of HUD you are using, if you are using scroll to, etcetera.

I guess you could use an inverted is overlapping at offset event.

on left key pressed

sprite is not overlapping wall at offset (value of moving left)

• sprite move left.