Pokemon Safari zone. Does this require an algorithm?

[BlueLucario]

I"m studying programming in college, and I was playing my pokemon blue version. When I was at the safari zone, I was sort of wondering.

I don't know for sure if this is right, but I'm sort of basing this on the newer versions, FRLG especially.

When you feed a pokemon bait. It is less likely to flee, but more difficult to catch. (In RBY, impossible if you feed a certain pokemon.)

When you throw a rock(or get closer) at a wild pokemon, it will be easier to catch, but very likely to flee.

I was thinking, maybe that this sort of thing requires an algorithm. I'm writing this in psuedo code. (I'm new at this so bear with me.)

What do you guys think? How would you write this in pseudocode.

 

[Flameguru]

All it probably does is raise or lower a variable for each condition and there is probably a rnd code gen stating whether or not the Pokemon should flee based on current variables.

That would be how I would go about it in Visual Basic anyway, I don't know anything about Gameboy Basic.

 

[Josh1billion]

Rock:

chance_to_catch += 10%;
if (random(1 in 3))
run_away;