Groups are not only usefull for organizing your event sheet, but mostly for the ability to activate/deactivate large pieces of code when not needed..

For instance:

If you put all your events for an ingame menu in a group and only activate that group when the menu is visible/available it can save construct a lot of checking time and as such improve performance..

I wonder why you need to use 200 objects this way..

Must be a better method, meaning one with less impact on performance..

you mean the uid?

https://www.scirra.com/manual/30/instances

why would you exit construct?

clone the object open it up in the image editor and start replacing..

Something like this?

Player on collision with enemy

--Call function "Collission" with parameters

0 - enemy.uid

1 - player.health

on function "Collission"

-- if function.parameter(1) > 10

-- pick enemy with uid = function.parameter(0)

--- enemy destroy

-- if function.parameter(1) < 10

--- player destroy

Updated it so it works..

It should maintain everything..

The above about the tokenat expression was taken from the manual..

by indicating what number(index) fram a string(src) seperated by something(seperator)

the string could be "1,2,3" - the seperator here is "," so if you ask for TokenAt("1,2,3",2,",") you'll get 2

What kind of example would you want?

Functions can be used for anything..

[attachment=0:3a0o335z][/attachment:3a0o335z]

I guess a lot of it has to do with only calling the function on triggered events..

Also instead of using the x and the y as parameters I suggest using the enemy.uid so you can just pick that enemy to perform the actions on..

Should be relatively easy to create..

C2 can do math itself so you shouldn't even have that hard a time..

Easiest way would be to create a function to produce the "random" question..

Just a quick and dirty way of doing things, albeit not the best:

You could use global variables for the first, second, RightAnswer, WrongAnswer, RightOrWrong..

set global variable first to choose(1,2,3,4,5,6,7,8,9) (I prefer using choose instead of random, for I find it easier to manipulate)

set global variable second to choose(1,2,3,4,5,6,7,8,9)

set global variable RightAnswer to first+second

set global variable WrongAnswer to first+second+choose(-1,1)

set Global variable RightOrWrong to choose("Right","Wrong")

system compare global variable RightOrWrong = "Right"

set text to first&"+"&second&"="&RightAnswer

system compare global variable RightOrWrong = "Wrong"

set text to first&"+"&second&"="&WrongAnswer

Or something like that..

It's not that complex,

you paste the sprites you want to mirror into the paster object and after that flip it..

The paster object doesn't achieve the desired effect, or you can't achieve the desired effect with it?

I tried and it wasn't a problem, actually..