PKHeX/PKHeX.Core/Legality/Learnset/LearnsetReader.cs
Kurt 02420d3e93
PKHeX.Core Nullable cleanup (#2401)
* Handle some nullable cases

Refactor MysteryGift into a second abstract class (backed by a byte array, or fake data)
Make some classes have explicit constructors instead of { } initialization

* Handle bits more obviously without null

* Make SaveFile.BAK explicitly readonly again

* merge constructor methods to have readonly fields

* Inline some properties

* More nullable handling

* Rearrange box actions

define straightforward classes to not have any null properties

* Make extrabyte reference array immutable

* Move tooltip creation to designer

* Rearrange some logic to reduce nesting

* Cache generated fonts
* Split mystery gift album purpose
* Handle more tooltips
* Disallow null setters
* Don't capture RNG object, only type enum

* Unify learnset objects
Now have readonly properties which are never null
don't new() empty learnsets (>800 Learnset objects no longer created,
total of 2400 objects since we also new() a move & level array)
optimize g1/2 reader for early abort case

* Access rewrite
Initialize blocks in a separate object, and get via that object
removes a couple hundred "might be null" warnings since blocks are now readonly getters
some block references have been relocated, but interfaces should expose all that's needed
put HoF6 controls in a groupbox, and disable

* Readonly personal data
* IVs non nullable for mystery gift
* Explicitly initialize forced encounter moves
* Make shadow objects readonly & non-null
Put murkrow fix in binary data resource, instead of on startup
* Assign dex form fetch on constructor
Fixes legality parsing edge cases
also handle cxd parse for valid; exit before exception is thrown in FrameGenerator

* Remove unnecessary null checks
* Keep empty value until init
SetPouch sets the value to an actual one during load, but whatever

* Readonly team lock data
* Readonly locks
Put locked encounters at bottom (favor unlocked)

* Mail readonly data / offset
Rearrange some call flow and pass defaults
Add fake classes for SaveDataEditor mocking
Always party size, no need to check twice in stat editor
use a fake save file as initial data for savedata editor, and for
gamedata (wow i found a usage)
constrain eventwork editor to struct variable types (uint, int, etc),
thus preventing null assignment errors
2019-10-16 18:47:31 -07:00

77 lines
No EOL
2.5 KiB
C#

using System;
namespace PKHeX.Core
{
/// <summary>
/// Unpacks <see cref="Learnset"/> data from legality binary inputs.
/// </summary>
public static class LearnsetReader
{
private static readonly Learnset EMPTY = new Learnset(Array.Empty<int>(), Array.Empty<int>());
public static Learnset[] GetArray(byte[] input, int maxSpecies)
{
var data = new Learnset[maxSpecies + 1];
int offset = 0;
for (int s = 0; s < data.Length; s++)
data[s] = ReadLearnset8(input, ref offset);
return data;
}
public static Learnset[] GetArray(byte[][] entries)
{
Learnset[] data = new Learnset[entries.Length];
for (int i = 0; i < data.Length; i++)
data[i] = ReadLearnset16(entries[i]);
return data;
}
/// <summary>
/// Reads a Level up move pool definition from a contiguous chunk of GB era ROM data.
/// </summary>
/// <remarks>Moves and Levels are 8-bit</remarks>
private static Learnset ReadLearnset8(byte[] data, ref int offset)
{
int end = offset; // scan for count
if (data[end] == 0)
{
++offset;
return EMPTY;
}
do { end += 2; } while (data[end] != 0);
var Count = (end - offset) / 2;
var Moves = new int[Count];
var Levels = new int[Count];
for (int i = 0; i < Moves.Length; i++)
{
Levels[i] = data[offset++];
Moves[i] = data[offset++];
}
++offset;
return new Learnset(Moves, Levels);
}
/// <summary>
/// Reads a Level up move pool definition from a single move pool definition.
/// </summary>
/// <remarks>Count of moves, followed by Moves and Levels which are 16-bit</remarks>
private static Learnset ReadLearnset16(byte[] data)
{
if (data.Length < 4 || data.Length % 4 != 0)
return EMPTY;
var Count = (data.Length / 4) - 1;
var Moves = new int[Count];
var Levels = new int[Count];
for (int i = 0; i < Count; i++)
{
int ofs = i * 4;
Moves[i] = BitConverter.ToInt16(data, ofs);
Levels[i] = BitConverter.ToInt16(data, ofs + 2);
}
return new Learnset(Moves, Levels);
}
}
}