pokerogue/main/media/comments.md

How do I comment my code?

While we're not enforcing a strict standard, there are some things to keep in mind:

• Make comments meaningful
• Comments should be explaining why a line or block of code exists and what the reason behind it is
• Comments should not be repeating chunks of code or explaining what 'true' and 'false' means in typescript
• Make sure comments exist on Functions, Classes, Methods, and Properties
• This may be the most important things to comment. When someone goes to use a function/class/method/etc., having a comment reduces the need to flip back and forth between files to figure out how something works. Peek Definition is great until you're three nested functions deep.
• The best example of this is JSDoc-style comments as seen below:
  • When formatted this way, the comment gets shown by intellisense in VS Code or similar IDEs just by hovering over the text!
  • Functions also show each the comment for parameter as you type them, making keeping track of what each one does in lengthy functions much more clear

/**
 * Changes the type-based weather modifier if this move's power would be reduced by it
 * @param user {@linkcode Pokemon} using this move
 * @param target {@linkcode Pokemon} target of this move
 * @param move {@linkcode Move} being used
 * @param args [0] {@linkcode Utils.NumberHolder} for arenaAttackTypeMultiplier
 * @returns true if the function succeeds
 */
apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
}

/** Set to true when experimental animated sprites from Gen6+ are used */
public experimentalSprites: boolean = false;

/**
 * Cures the user's party of non-volatile status conditions, ie. Heal Bell, Aromatherapy
 * @extends MoveAttr
 * @see {@linkcode apply}
 */
export class DontHealThePartyPlsAttr extends MoveAttr {
}

You'll notice this contains an {@linkcode Object} tag for each parameter. This provides an easy type denomination and hyperlink to that type using VS Code's Intellisense. @linkcode is used instead of @link so that the text appears in monospace which is more obviously a type rather than a random hyperlink.

If you're interested in going more in depth, you can find a reference guide for how comments like these work here

What not to do:

• Don't leave comments for code you don't understand
• Incorrect information is worse than no information. If you aren't sure how something works, don't make something up to explain it. Ask for help instead.
• Don't over-comment
• Not everything needs an explanation. Try to summarize blocks of code instead of singular lines where possible. Single line comments should call out specific oddities.

How do Abilities and Moves differ from other classes?

While other classes should be fully documented, Abilities and Moves heavily incoperate inheritance (i.e. the extends keyword). Because of this, much of the functionality in these classes is duplicated or only slightly changed between classes.

With this in mind, there's a few more things to keep in mind for these:

• Do not document any parameters if the function mirrors the one they extend.
  • Keep this in mind for functions that are not the apply function as they are usually sparce and mostly reused
• The class itself must be documented
  • This must include the @extends BaseClass and @see {@linkcode apply} tags
• Class member variables must be documented
  • You can use a single line documentation comment for these /** i.e. a comment like this */
• args parameters must be documented if used
  • This should look something like this when there are multiple:

/**
...
 * @param args [0] {@linkcode Utils.NumberHolder} of arenaAttackTypeMultiplier
 *             [1] {@linkcode Utils.BooleanHolder} of cancelled
 *             [2] {@linkcode Utils.BooleanHolder} of rWeDoneYet
...
*/