Making An Object Shrink Down To Nothing.

Solar2D General Questions/Discussion
1

I have an object that on collision I would destroy using object:removeSelf(), 

instead of that I would like to have the object shrink down to nothing so it appears to be

losing energy.  Would  someone help me accomplish this.  Thanks! 

 

function ball1:collision (event)

    if (event.other.name == ‘radar1’) then

        ball1:removeSelf()

        ball1=nil

    end

end

2

Well, you can either animate this using a sprite, or you can just transition it:

 

[lua]transition.to( ball1, { time=1000, xScale=0, yScale=0 } )[/lua]

 

I also suggest you disable the physics body (or remove it, or turn it into a sensor) so it won’t collide with anything while it’s “dying”. This of course will need to be done using a 10 millisecond timer, since you can’t change a body’s active state in the collision game cycle.

 

Brent

3

you cannot scale object to size of 0 because it will crash app. It is safe to scale object to 0.001 thou.

4

Well, you can either animate this using a sprite, or you can just transition it:

 

[lua]transition.to( ball1, { time=1000, xScale=0, yScale=0 } )[/lua]

 

I also suggest you disable the physics body (or remove it, or turn it into a sensor) so it won’t collide with anything while it’s “dying”. This of course will need to be done using a 10 millisecond timer, since you can’t change a body’s active state in the collision game cycle.

 

Brent

5

you cannot scale object to size of 0 because it will crash app. It is safe to scale object to 0.001 thou.