I'm trying to design a RPG, and I am trying to figure out how to get a proper leveling algorithm or something. Instead of just setting up all these cases for the experience like:

Because, i don't know, I might want like 100 levels, or 60, or even 40, which might be a lot of cases to have.
Or, rather, how would you set up the experience and leveling system? (I open to any ideas.)

Have these variables:

CurrentEXP
EXPtoLevel
CurrentLevel

When CurrentEXP >= EXPtoLevel, then CurrentLevel + 1, CurrentEXP = 0 and EXPtoLevel = X

X can be any equation, preferably a single-variable equation with CurrentLevel as the variable. For example, X = (CurrentLevel * 1000) would be 1000 exp for every level. Or X = (CurrentLevel * 1000) ^ 1.2 would add a larger range in exp required for higher levels.

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NetGore - Open source online RPG engine

To handle the exp/level deal, create a simple table and check it when the player gains experience. If you keep the table in a file, it can easily be changed to ensure it's balanced when you're testing.

or just have a simple formula, that you can show in a table in design documents fro clarity, but is expadable a lot easier than that. For example, the d20 system has a table with xp values for each level, but it follows a simple formula, which I think is something like (in code):



or, in more english terms, times the level by 1000, and add that onto the previous value for the next level to gain the next experience point target.

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I'm using a leveling system that starts by preset values up to lvl 6 then uses a formula like

nextLevel = (1,000 ^ (curLevel / 100 + 1.2))

anyway It's also a good Idea to save all of the values for the levels into some array in the init of the game. That way you won't have to constantly be running this formula for ever exp gained. At least thats how I did it.

I prefer the algorithm : NextLevel = ((Previous Level * 2) + 1/2 Previous Level)

Level 2 general starting at 100 xp or 200 xp needed then extrapolating out to a max level of 100 or so.

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“Man is still the most extraordinary computer of all.” – John Fitzgerald Kennedy