GameMaker [RESOLVED] Affect multiples variables with arrays?

[JacktheBlindRabbit]

Hey,
Is there a way to affect all the variables/objects stored in an array?
I have read the GMS documentation and searched the forums but I have to admit I'm struggling to understand how to use arrays...

For example if i want to make something explode in multiple parts and affect theses parts, how should I do it?
In my mind it's something like this, but that doesn't work:

parts[1] = oHead
parts[2] = oBody
[...]

explosion = instance_create_layer(x,y,"layer",parts)
explosion.direction = ...
explosion.speed = ...

I know how to do this without arrays but that's a lot of code for nothing, so I'm asking to increase my workflow.

Thanks in advance!

 

[FrostyCat]

Iterate through them with a loop.

parts[0] = oHead;
parts[1] = oBody;
//...

var parts_count = array_length_1d(parts);
for (var i = 0; i < parts_count; i++) {
  var explosion = instance_create_layer(x, y, "layer", parts[i]);
  explosion.direction = random(360);
  explosion.speed = random_range(6, 10);
  //...
}

 

[maratae]

Hey,
Is there a way to affect all the variables/objects stored in an array?
I have read the GMS documentation and searched the forums but I have to admit I'm struggling to understand how to use arrays...

For example if i want to make something explode in multiple parts and affect theses parts, how should I do it?
In my mind it's something like this, but that doesn't work:

parts[1] = oHead
parts[2] = oBody
[...]

explosion = instance_create_layer(x,y,"layer",parts)
explosion.direction = ...
explosion.speed = ...

I know how to do this without arrays but that's a lot of code for nothing, so I'm asking to increase my workflow.

Thanks in advance!

You can try looping through the array with a for loop.

 

[JacktheBlindRabbit]

Thanks, that's clever.
I don't get the

for (var i = 0; i < parts_count; i++)

though

 

[maratae]

Thanks, that's clever.
I don't get the

for (var i = 0; i < parts_count; i++)

though

Start counting at zero. Until it's less than the parts you have. Increase one.

 

[JacktheBlindRabbit]

Start counting at zero. Until it's less than the parts you have. Increase one.

Oooh okay
Thanks! That will be of use