level up system

[Pierwolf]

hi everybody,

as you can see in the attachment below, studying the bare knukle Z mod scripts and playing with scripts i've implemented a level up system in my mod.

for how it works now, everytime you level up you regain full Healt and mp:

Code: [Select]

void lvup(int plIndex)
{
void score=getplayerproperty(plIndex,"score");
void ent=getplayerproperty(plIndex,"entity");
int oldLevel=getglobalvar("level."+plIndex);
int lv=getLevel(score);
if (oldLevel==NULL()){oldLevel=0;}
if (lv>oldLevel){
changeentityproperty(ent,"health",getentityproperty(ent,"maxhealth"));
changeentityproperty(ent,"mp",getentityproperty(ent,"maxmp"));
setglobalvar("level."+plIndex,lv);
spawnLvup(ent);
}
            setglobalvar("score"+plIndex,score);
}

now, how can i proceed if i want that everytime the chars level up, it gains, let's say, +5  to healt and mp permanently? any tips?

i've tryed this, but it doesn't works, so i'm not in the right path:

Code: [Select]

void lvup(int plIndex)
{
void score=getplayerproperty(plIndex,"score");
void ent=getplayerproperty(plIndex,"entity");
int oldLevel=getglobalvar("level."+plIndex);
int lv=getLevel(score);
if (oldLevel==NULL()){oldLevel=0;}
if (lv>oldLevel){
changeentityproperty(ent,"health",getentityproperty(ent,"maxhealth", + 5));
changeentityproperty(ent,"mp",getentityproperty(ent,"maxmp", + 5));
setglobalvar("level."+plIndex,lv);
spawnLvup(ent);
}
            setglobalvar("score"+plIndex,score);
}

thanks in advance.

[volcanic]

changeentityproperty(ent,"maxhealth",getentityproperty(ent,"maxhealth")+ 5);changeentityproperty(ent,"maxmp",getentityproperty(ent,"maxmp") + 5);
changeentityproperty(ent,"health",getentityproperty(ent,"maxhealth"));changeentityproperty(ent,"mp",getentityproperty(ent,"maxmp"));

[utunnels]

That doesn't work if you quit the level or exit the game. So you need to store the level up information in some global variables and do some check in your spawn or respawn animation.

[MatMan]

I've been thinking but havn't tried yet but a possible way is...

Code: [Select]

ent = getlocalvar("self");
int whateverlevelcharacteris = getentityproperty(ent,"score") / 5000; //so every level will be + 1 for every 5000 score/xp or what ever method you be using
if ( getentityproperty(ent,"maxhealth") == getentityproperty(ent,"health") ) //this mean if the characters health is full then full up his health and max his bar
{
changeentityproperty(ent,"maxhealth",getentityproperty(ent,"maxhealth")+ (5 * whateverlevelcharacteris) );
changeentityproperty(ent,"health",getentityproperty(ent,"maxhealth")+ (5 * whateverlevelcharacteris) );
} else { //just max out his bar without touching his health
changeentityproperty(ent,"maxhealth",getentityproperty(ent,"maxhealth")+ (5 * whateverlevelcharacteris) );
}


and I don't think that you will need to save to a file then. O and put this command in the onspawnscript of a character.

[Pierwolf]

anyway i've tried it and it didn't work.

maybe you would examine my mod updated. i've added the level up system i've done until now.

you can download  here.

[volcanic]

I'd love to help you.
I'll download it and fix it when I have time.

[volcanic]

Ok. Tested and make the fix for ya.
1.Overwrite the scripts below to your scripts folder.
2.Add a line to each header of all the hero entities.
For example elf.txt
onspawnscript      data/scripts/spawn/player.c
3.Remove the line in every hero entity.
script            data/scripts/level.c
4.Delete data/scripts/level.c.

Of course, don't forget to backup your mod.

It should work now.
Good luck.

[Damon Caskey]

Haven't looked at the fixes here, but just in case; don't forget about filestreams for saving character levels and similar data. They are tailor made for this kind of thing. I find them much easier to use than trying to deal with all the side effects that come from OpenBOR's default save game system.

DC

[volcanic]

The idea is only to save scores to globalvars .
You can tell the level and the ability from score.
And the feature the engine saves globalvars is very useful.

[Damon Caskey]

Yeah I get the part about using scores to determine the character's level. Leveraging formulas to keep code and variables to a minimum is coding 101.

About global variables though, those are nothing but a headache. The main trouble comes when you want the character levels and other saved data to be fully independent of where the player is in the game. If the player say, goes back and loads up a saved game from stage 2, your script gets those globals instead of what was stored when he saved stage 7. Filestreams bypass that problem completely and give you consistent results.

DC

[utunnels]

That depends on what he really needs to do. To me, loading a saved game means I want to abandon current progress, so it is OK to overwrite the values. Besides, if the save flag is set to 2, your stage 7 information will be saved and overwrite the old save from stage 2.  Real problem is all informations must be stored as global variables, no arrays nor pointers are acceptable. If you want a large trunk of data to be saved,  you'll have to fill a large amount of global variables.

However, if you want a save system like an RPG, for example, multiple save slots, the filesteam might be useful. You have to design your save data carefully, decide which variables are necessary and when to read/write the file.

[rafhot]

i started to play with volcanic fixes trying to add more features

it is possible do something like this to increase offense and defense at lvl up?

changeentityproperty(ent,"offense",getentityproperty(ent,"offense", openborconstant("ATK_NORMAL")+0.1*(lv - 1)));

do you think something like that should work?

[volcanic]

Yes. It is doable.
Almost all the properties such as speed,defense, even delay can be changed.
But your script is not very correct.

[rafhot]

what is the correct syntax for offense, defense and velocity changes?

[utunnels]

Something like

changeentityproperty(ent, "offense", openborconstant("ATK_NORMAL"), value);

You need to specify the type of the attack type.