How to pass value from one object to another in Game maker Studio??

Question

Game development

I am developing my RPG game using the Game maker Studio 2 engine. There
was a problem during development!
there will be a large number of weapons in the game, but how to pass the value of the object obj_sword - damage=10;
to the object of the main character obj_player when he picks it up!
example of my code:
equipped=noone;
slot_1 - quick access icon in which weapon objects are located and so on
par_tool object parrent which is needed to transfer the properties of functions to a large number of objects
if(keyboard_check_pressed(ord("1"))) // button "1" is pressed once
{
var par= object_get_parent(slot_1); // create var which is equal to the object in slot 1
if(obj_player.equipped!=slot_1 )// check if equipped is equal to slot 1
{
if(par==par_tool) // the object in the cell is equal to our parent
{
obj_player.equipped=slot_1; // equipped equals slot 1
with(par_tool){instance_destroy();}
instance_create_layer(obj_player.x,obj_player.y,"Player",slot_1); // create an object in the animation hand
}
}
}

Answer 1

It is necessary to make a separate object - and store global variables in it, as it were. There must be one such object, otherwise you will have a mass assignment of values ​​\u200b\u200b(I don’t know what the engine developers were smoking).
In principle, it is possible to store in the player object if it is the only one.
If you have many objects of the same type, then make a separate array for each property in the global object.