11 replies to this topic

[accela2me]

hello, people!

I'm making an achievement system for my quest and one of the tasks is to kill a certain number of enemies (300, for example). so, I need a script to create a counter of defeated enemies and display a message when the total number of enemies is reached.

can someone help me with this? :)

 

[MoscowModder]

I made this to support multiple achievements in one script. Adding more achievements should be relatively simple. In theory.

int achievementCounters[1]; //All achievement counters

//Achievement counter indices
const int AC_KILLS = 0;

//Achievement items
const int I_KILLS300 = 0; //Item to give for 300 kills

const int HP_DEAD = -999;

global script active{
    void run(){
        while(true){
            //Kill tracking
            for(int i = 1; i <= Screen->NumNPCs(); i++){
                npc enem = Screen->LoadNPC(i);
                if(enem->HP <= 0 && enem->HP > HP_DEAD){
                    achievementCounters[AC_KILLS]++;
                    enem->HP = HP_DEAD;
                    if(achievementCounters[AC_KILLS] == 300)
                        Link->Item[I_KILLS300] = true;
                }
            }
            Waitframe();
        }
    }
}

Edited by MoscowModder, 21 December 2013 - 01:32 PM.
Edited script

[accela2me]

Dude, I tested the script with my current quest, but the item didn't appear in the subscreen.

And in another test, I created a new game using only the script that you made ​​and the game crashed.

What could be wrong? :/

 

Here the test file:

https://dl.dropboxus...72/testfile.rar

 

EDIT: I found the problem to the 1st test: the script works only with enemies that have only 1 point of HP.

Edited by accela2me, 21 December 2013 - 12:05 PM.

[MoscowModder]

Dang it! Forgot the old Waitframe(). I also forgot to set the enemies' HP to HP_DEAD. Fixed both above. ^^

[Saffith]

Also, that should be enem->HP <= 0

[Avaro]

So, enemies that have 0 or less HP disappear after one frame, right?

[accela2me]

Now is working very well!

Thanks so much, guys!

[accela2me]

I'll use this topic again, because I need another achievement to add to my quest:

Now I don't know how to create an achievement that is unlocked if you collect 999 rupees (since the amount of rupees is always changing.)

[MoscowModder]

Boom.

int achievementCounters[1]; //All achievement counters

//Achievement counter indices
const int AC_KILLS = 0;

//Achievement items
const int I_KILLS300 = 0; //Item to give for 300 kills
const int I_RUPEES999 = 0; // Item to give for 999 rupees

const int HP_DEAD = -999;

global script active{
    void run(){
        while(true){
            //Kill tracking
            for(int i = 1; i <= Screen->NumNPCs(); i++){
                npc enem = Screen->LoadNPC(i);
                if(enem->HP <= 0 && enem->HP > HP_DEAD){
                    achievementCounters[AC_KILLS]++;
                    enem->HP = HP_DEAD;
                    if(achievementCounters[AC_KILLS] == 300)
                        Link->Item[I_KILLS300] = true;
                }
            }
            // 999 rupees
            if(!Link->Item[I_RUPEES999] && Game->Counter[CR_RUPEES] >= 999)
                Link->Item[I_RUPEES999] = true;
            Waitframe();
        }
    }
}

[accela2me]

Thanks, dude!

[Timelord]

So, enemies that have 0 or less HP disappear after one frame, right?

Pointers are cleared the frame after they become invalid; so, aye, that's what happens. This is also true for objects (NPCs, weapons, and the like) removed with the Remove() function: They aren't removed until the next frame.

 

Further, don't do Remove() with Lanmolas in 2.50.0, as that will crash ZC. (You can safely do it in 2.50.1.)

[elektriktoad]

I'll use this topic again, because I need another achievement to add to my quest:

Now I don't know how to create an achievement that is unlocked if you collect 999 rupees (since the amount of rupees is always changing.)

 

Do you mean "unlock achievement once your wallet contains 999 rupees" (which is what MoscowModder's script does), or "unlock achievement after collecting 999 rupees, even if you've spent some in the meantime"? For the latter, you could attach a pickup script to all rupee items that increases a Cumulative Rupee counter and check that counter in the global script to unlock the achievement. Alternatively, a global script could continuously compare your rupee counter to the amount from the previous frame, and increment a Cumulative Rupee variable as needed. I don't have the time to implement that at the moment, but I could get to it later this week if no one else does it first.

 

I like these achievement ideas. It would be neat if the achievement item that you acquire can be equipped/unequipped to give you different 'hats,' using Link Tile Modifiers.