Returns the id of an instance in the room.


instance_id[0 ... n];

Returns: Real


This read only array holds all the ids of every active instance within the room. This means that if you have used any of the instance_deactivate functions those instances that have been deactivated will not be included in this array (if you have used a value from this array previously, it will now return the keyword noone).


var i;
for (i = 0; i < instance_count; i += 1;)
   with (instance_id[i]) speed += 0.1;

The above code will loop through all instances within the room and add 0.1 to their speed.

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