10 replies to this topic

[Morrin]

Hello,

I need an object to do something until a variable is true.
This is what I did, and it freezes the game. What should I do? (I want the object o move around, looking for the closest instance of z, until Me>=9. Each time it destroys a X, Me+=1.. What should I Do?
do
{if instance_exists(z) then
{
Hum = instance_nearest(x,y,z)
mp_potential_step_object(Hum.x,Hum.y,3,y)
}
}
until Me>=9

[@Alex@]

The do until structure is powerful and you've fallen into a trap here, where it takes so long to get to Me >= 9 it causes the game to crash.

replace the do...until structure with a if Me < 9 statement , this will achieve the desired result.

[Morrin]

It does not work- This is what I want to happen.
Object chases nearest instance of X, when it catches it, it destroys it and makes Me+=1. When Me>=9 it goes to another object(Z), where it creates object Y, and makes Me-=10.
I have tried everything and it doesn't work

N.B, thanks for the help

[naibla]

if Me<9
{if instance_exists(z) then
{
Hum = instance_nearest(x,y,z)
mp_potential_step_object(Hum.x,Hum.y,3,y)
}
}

First off, I'm assuming this is in the step event of the object.

The problem is in the line of code above, where you have the variable 'y' in the last position.


mp_potential_step_object(Hum.x,Hum.y,3,y)


The mp_potential_step_object uses (x,y,speed,obj) , so you are setting the object to avoid to whatever y position you are at, which will cause lots of problems and probably just make it ignore that entire line of code. Try doing

mp_potential_step_object(Hum.x,Hum.y,3,wall)

or just

mp_potential_step(Hum.x,Hum.y,3,false)

-Naibla

Edited by naibla, 15 July 2011 - 10:47 PM.

[Morrin]

Those aren't actual letters, they are just examples (as in algebra, x, y, z are all variables)

And it still does not work.

[Morrin]

What's happening right now is that they treat all instance nearests as the same..

[naibla]

Is it in the step event?

Is what is above your exact code?

Did you try what I suggested, but with the correction that @Alex@ said (which IS what is in my example, but just double checking)?

What's happening right now is that they treat all instance nearests as the same..

Isn't there only one instance nearest? I'm sorry if I'm not understanding you...

Edit: Bleh, ignore the above line... didn't read your last post right.

So, it almost works... somehow everyone has the same Hum. Try using a with statement maybe?

Edited by naibla, 15 July 2011 - 11:12 PM.

[Morrin]

This is the code I have

if Sum>9 then
{
mp_potential_step_object(Cherry.x,Cherry.y,3,Carnivor)
}
else
if Sum<10
{if instance_exists(Bread) then
{
Hum = instance_nearest(x,y,Bread)
mp_potential_step_object(Hum.x,Hum.y,3,Carnivor)
}
}

Everything else works. Right now, it is only going towards instance Bread

[Morrin]

any ideas?

[naibla]

Hmm... It looks good to me.
Are you sure that Sum is increasing correctly?

Is Cherry an instance_nearest or just an object?

[Morrin]

Just an object. And yes, it is being increased correctly. I've tested it alone.