Legacy GM Run through optional var values

[TheRBZ]

I have a simple button object set up that controls buttons. Some are simple, just go to a room.
Some are like options and need to run through a set of options
(e.g. Start on normal, go to hard, then go to easy then to normal, and cycle).

My current code is bulky and I'm sure there is a more efficient way.

Spoiler: Code

switch(action)
{
//Speedrun button
    case 0:
        room_goto(rm_speedrun);
        break;
//Versus button         
    case 1:
        room_goto(rm_versus_set);
        break; 
//Disinfect Button       
    case 2:
        room_goto(rm_disinfect_set);
        break; 
//Disinfect mode button             
    case 3:
        if inst_10C4A282.text = "Normal"{
        inst_10C4A282.text = "Experimental"
        global.dis_mode = "experi";}
        else{
        inst_10C4A282.text = "Normal"
        global.dis_mode = "normal";}
        break; 
//Disinfect difficulty button           
    case 4:
        if inst_6CEA83E2.text = "Normal"{
        inst_6CEA83E2.text = "Hard"
        global.dis_dif = 999}
        else if inst_6CEA83E2.text = "Hard"{
        inst_6CEA83E2.text = "Easy"
        global.dis_dif = 5499}
        else if inst_6CEA83E2.text = "Easy"{
        inst_6CEA83E2.text = "Normal"
        global.dis_dif = 3499}
        break; 
//Versus mode button                 
    case 5:
    
        break;
//Versus time button               
    case 6:
    
        break;                         
}

In each instance creation code, it has this template:

Spoiler: Code

text = "[first shown text]";
action = [action #];

It basically determines which piece of code is assigned to which instance.

If you look at case 3 and 4, you see my attempt at making a run through multiple options.
IS there a more efficient way of doing it?

Also, if you need to see more code with the objects and instances, just say.

 

[Simon Gust]

It's pretty good. But did you know you can also check strings in a switch statement

case 4:
switch (inst_6CEA83E2.text)
{
  case "Normal":
    inst_6CEA83E2.text = "Hard";
    global.dis_dif = 999;
    break;
  case "Hard":  
    inst_6CEA83E2.text = "Easy";
    global.dis_dif = 5499;
    break;
  case "Easy":
    inst_6CEA83E2.text = "Normal";
    global.dis_dif = 3499;
    break;
}

 

[TheRBZ]

Oh, come on! I knew there was something like that. Thanks for saving my life again.
Yes, I know I already know that method.

 

[TheRBZ]

Ohhhhh, It's so satisfying!