Chain explosion

[Novastrike]

Hello everyone,

I'm new here, can someone please tell me how to get all connected objects to change animation while leaving the unconnected ones alone.

Example

I have multiple boxes and would like all connected ones to be destroyed when a bullet hits them. Kind of like a chain explosion.

Thanks.

[xXjbroXx]

are you talking connected like in a straight line? or connected going all kinds of directions?

[Jeod]

If you have an explosion animation, create that animation at the center of the box when the bullet collides with the box. (Make sure the explosion animation is bigger than the box so it collides with the other boxes) Then make an event:

If Box_Explosion collides with Box
>Destroy Box

So you have two separate objects. A static box, and an explosion. Here's a good example: the box object is 16 pixels by 16 pixels and the explosion object is 32 pixels by 32 pixels. This will make the explosion cover all the boxes surrounding the box the object was created at. (Check the hotspots and action points of the box objects and explosion object)

In the end you should have three events for this.

If Bullet collides with Box
>Create Box_Explosion at position 0,0 relative to Box
>Destroy Bullet

If Box_Explosion collides with Box
>Destroy Box

If Box_Explosion animation has finished
>Destroy Box_Explosion

[xXjbroXx]

Ye what he said... lol

[Novastrike]

Thank you for the reply Jeod and xXjbroXx

But there's a problem, it destroys the boxes which are unconnected too.

For example I have 2 sets of boxes, 3 on the left which are connected and 5 on the right which are connected. When the bullet hits the boxes on the left, the ones on the right are also destroyed, how can I make each set independent.

[Jeod]

If you duplicated the boxes that shouldn't happen. Try grouping the boxes with a qualifier.

[xXjbroXx]

yes you could use "good" for connected boxes and "bad" for unconnected ones.

[Jacob]

erm... no. That wouldn't work. You can't set individual instances to a qualifier.

[UrbanMonk]

You could just make an invisible mask to check for connected boxes.

[mobichan]

Better still you could just set a variable to a number when you create the boxes. Set box type a to 1, box type b to 2, etc. Then just check which Id the box has when you do your overlap check.