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Selecting one object with multiple of the same object in a room

Discussion in 'Programming' started by vincenttnecniv, Oct 7, 2016.

  1. Hello. I'm sure this is an easy fix, but I can't wrap my head around how instance id's work.
    Im trying to select an object and then have it deselct that object when i click on another object, or anywhere else in the room. Right now, if I click on any of the objects in the room it selects the same object every time. I can click on any instance of the object, but only one will be selected. So if I had @ @ @ in a room, and I clicked on any of them only the far right @ would be selected every time. Any insight is greatly appreciated.
    My code so far is
    Create Event:
    selected = false;
    Step Event:
    if (mouse_check_button_pressed(mb_left)){
    var click_id = instance_position(mouse_x, mouse_y, all);
    //This is where my brain just refuses to function

    if (position_meeting(mouse_x, mouse_y, obj_card)){
    //This line is suppose to deselect any previous instance and then select the new one i click
    obj_card.selected = false;
    selected = true;
    } else if (mouse_check_button_pressed(mb_left)){
    selected = false;

    Draw Event:
    if (selected = true){
    //This just draws an outline so I know if its working or not
    draw_sprite(spr_selected, 0, x, y);
    VentKazemaru likes this.
  2. TheouAegis

    TheouAegis Member

    Jul 3, 2016
    if mouse_check_button_pressed(mb_left) {
    with obj_card selected = false;
    with instance_position(mouse_x, mouse_y, obj_card) selected = true;
  3. DariusWolfe

    DariusWolfe Member

    Sep 23, 2016
    It may not be the best way to do it, but I just have a global mouse event, with the first action being to deselect all instances of the object, and the second line being to select the instance at the mouse position (instance_position(mouse_x,mouse_y,obj_thing))

    My actual code is designed to allow for other clickable objects down the road, and looks like the below:

    obj_crewman.v_selected = 0
    clicked = instance_position(x,y,all)
    if clicked != noone
    if object_get_name(clicked.object_index) = "obj_crewman"
    clicked.v_selected = 1;

    Down the road, when I need other clickable objects, I'll add more bits of code like the one in the "if clicked != noone" brackets.

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