In most other similar systems, like TeamValidator, we use `thing.dex`
instead of having it extend `ModdedDex`. Battle has always extended
`ModdedDex`, though. This changes Battle to match the others.
This should fix an issue with `Battle.data` not being cached.
This also frees up Battle to extend ObjectReadWriteStream<string> in
a future update.
See #5415 for context - having these methods is unsafe and leads
to crashes because not all ActiveMoves are created through the
Data.ActiveMove constructor. Instead of Pokemon, these could
alternatively be static methods on ActiveMove (or the ActiveMove
class could be completely abolished and reverted back to an
interface), but #5415 will deal with ActiveMove long term, this just
fixes the crashes.
Previously, using Leppa Berry by itself caused Endless Battle Clause
to consider Pokemon to be stale. However, it is reasonable to use
Leppa Berry without an intent to cause an endless battle - for
instance to increase the PP of a move with a low PP.
This is still wrong because spamming a Fire attack in Primordial Sea
should not boost damage, but then you run into the problem of boosting
multiple times against multiple targets.
TODO: fix this
Often, you just need a random item in an array. Throughout Pokemon
Showdown's code, there are many instances of the following pattern:
let randomThing = things[this.random(things.length)];
Make this code easier to read by factoring the indexing into the
PRNG#sample function:
let randomThing = this.sample(things);
Run the following sed script to refactor lots of code to use sample:
s/\([a-zA-Z0-9.]\{1,\}\)\[this\.random(\1\.length)\]/this.sample(\1)/
This commit should not change behaviour. In particular, PRNG#next is
called the same number of times with the same number of parameter as
before this commit, and PRNG#next's results are interpreted in the same
way as before this commit.
Often, you just need a random boolean. Throughout Pokemon Showdown's
code, there are many creative ways of requesting random booleans. For
example:
if (this.random(10) < 3) {
if (this.isWeather(['sunnyday', 'desolateland']) || this.random(2) === 0) {
let shiny = !this.random(1024);
if (uberCount > 1 && this.random(5) >= 1) continue;
if (!this.random(3)) ability = ability1.name;
} else if ((ability === 'Iron Barbs' || ability === 'Rough Skin') && this.random(2)) {
if (typeof secondary.chance === 'undefined' || this.random(256) <= effectChance) {
if (accuracy !== true && this.random(256) > accuracy) {
Enable these methods to converge by introducing the PRNG#randomChance
function. It accepts a probability and returns true with that
probability.
Run the following sed script to refactor many common patterns to use
randomChance:
s/this\.random(\([0-9]\{1,\}\)) >= \([0-9]\{1,\}\)/!this.randomChance(\2, \1)/g
s/this\.random(\([0-9]\{1,\}\)) < \([0-9]\{1,\}\)/this.randomChance(\2, \1)/g
s/this\.random(\([0-9]\{1,\}\)) === 0/this.randomChance(1, \1)/g
s/!this\.random(\([0-9]\{1,\}\))/this.randomChance(1, \1)/g
The sed script takes advantage of the following properties:
random(x) < y is equivalent to randomChance(y, x)
random(x) >= y is equivalent to !(random(x) < y), i.e. !randomChance(y, x)
random(x) === 0 is equivalent to random(x) < 1, i.e. randomChance(1, x)
!random(x) is equivalent to random(x) === 0, i.e. randomChance(1, x)
This commit should not change behaviour. In particular, PRNG#next is
called the same number of times with the same number of parameter as
before this commit, and PRNG#next's results are interpreted in the same
way as before this commit.
pokemon.moveset is now pokemon.moveSlots, which is at least slightly
clearer about what it's doing (tracking move state, mainly PP).
Mostly, this gives a consistent naming scheme for `move` (a Move
object) vs `moveSlot` (a MoveSlot object).
This also refactors a lot of existing `moveSlot` accesses to be modern,
including using `for...of`.
