Battle Mechanics...

[Poeman]

How do the mechanics of the pokémon battle system work exactly?
If I have Charizard and You had a bulbasaur, and your bulbasaur magically knew a water move, and used it is it X2 effectiveness, or is it X.5 because your a grass type? I'm making a game with the battle system in game maker and sort've need to know XD

 

[~JV~]

Obviously it's 2x, what would be the point of having different types moves then =/?

 

[Poeman]

So if I was a electric pokemon with tackle, tackle wouldn't work on gengar(to verify XD)

 

[Yuoaman]

So if I was a electric pokemon with tackle, tackle wouldn't work on gengar(to verify XD)

No it wouldn't. The Pokemon's type only matters when using a type if they are the same, then they get STAB (Same Type Attack Bonus), which doubles its effectiveness.

 

[Neo-Dragon]

This is a great site:
https://www.upokecenter.com/
It has some really handy info about how the code works I find.

Also, another good tip is to look at the rom and how it handles it.
I did when I was building the battle system for Protectors.

 

[Poeman]

Thanks for the help ^_^
I'll be sure to check that out neo
STAB seems confusing @_@

 

[Ki77y666]

This is strait from Nintendo's mouth.

Damage multiplier
It's super-effective!=x2
No Message=x1
It's not very effective=x0.5
It has no effect=x0
Pokemon is same type as move used=x1.5

Which means.....
​

Water move on Fire type=x2
Water move on Normal type=x1
Fire move on Water type=x0.5
Ghost move on Normal type=x0
Water move on Water type=1.5