need help in loop

on start of the layout i have created 5x5 grid by using for loop

later ON ANY KEY PRESSED i want to add values inside the instance variable using loop

I know i can add this "On created". But i want to add numbers in variables using for loop. please see screenshot to see what i want to do

0,1,2,3,4

0,1,2,3,4

0,1,2,3,4

0,1,2,3,4

0,1,2,3,4

i want to put these values in 5x5 instance variable

In your case instead of the for each you could use:

+ System: Pick Box instance (LoopIndex("y")-1)+(LoopIndex("x")-1)×5

It would be easier if you would use zero-based numbering an the x and y loop in the correct order.

+ System: On start of layout
-> Box: Destroy
----+ System: For "y" from 0 to 4
----+ System: For "x" from 0 to 4
-----> System: Create object Box on layer 0 at (LoopIndex("x")×100+200, LoopIndex("y")×100+200)

+ Keyboard: On Space pressed
+ System: For "y" from 0 to 4
+ System: For "x" from 0 to 4
----+ System: Pick Box instance LoopIndex("x")+LoopIndex("y")×5
-----> Box: Set values to LoopIndex("x")

One more thing i want to do

On 5x5 grid i put variable values

0,1,2,3,4

0,1,2,3,4

0,1,2,3,4

0,1,2,3,4

0,1,2,3,4

Now i added another object "x" (8 copies) over the grid randomly

(see x position over grid)

0,x,x,x,4

0,1,2,3,4

0,1,x,x,4

X,1,2,3,4

0,1,2,x,x

Now i want to add values to instance variable of object "x"

0,0,1,2,4

0,1,2,3,4

0,1,0,1,4

0,1,2,3,4

0,1,2,0,1

I hope you understand

create new object "Box2"

All instance variable of "Box2" who are over the first row of "Box" will be value like 0,1,2,3

same for "Box2" over second row of "Box"

Let me explain you what i want to do. I have 2 Sprites "redBox" & "greenBox" and both have variable "value"

I created redBox on 5x5 grid and set their variable to

0,1,2,3,4

0,1,2,3,4

0,1,2,3,4

0,1,2,3,4

0,1,2,3,4

after that i create "greenBox" randomly over the "redBox" i.e. 8 times

see this image

Now I want to set values to "greenBox' according to number of "greenBox" are over the each row of "redBox" for example: in above image 3 "greenBox" are in first row then value needs to be 0,1,2 and in third row there are 2 "greeBox" so value will be 0,1 and so on.

this is what i am trying to do.