public async Task TestRecompression(int file)
{
var name = (AmxNames)file;
var amxGarc = await Game.GetGarc(GarcNames.AmxFiles);
if (file >= amxGarc.Garc.FileCount)
{
Assert.Inconclusive($"Nonexistent file: {file}");
}
if (!Directory.Exists("Recompression"))
{
Directory.CreateDirectory("Recompression");
}
var amxFile = await amxGarc.GetFile(file);
var amx = new pkNX.Structures.Amx(amxFile);
var origData = amx.Data;
var decompressed = amx.DecompressedInstructions;
var recompressed = PawnUtil.CompressScript(decompressed);
var newData = amx.Data
.Take(amx.Header.COD)
.Concat(recompressed)
.ToArray();
await File.WriteAllBytesAsync($"Recompression\\{name}_old.bin", origData);
await File.WriteAllBytesAsync($"Recompression\\{name}_new.bin", newData);
Assert.AreEqual(origData, newData, $"File {file} failed");
}
public async Task TestItemRandomizer()
{
var random = this.GetNewTaskRandom();
var itemNames = await Game.GetTextFile(TextNames.ItemNames);
var amxGarc = await Game.GetGarc(GarcNames.AmxFiles, true);
var fldItemFile = await amxGarc.GetFile((int)AmxNames.FldItem);
var fldItemAmx = new pkNX.Structures.Amx(fldItemFile);
var itemDataPayload = fldItemAmx.DataPayload.Skip(9).ToArray();
Assert.AreEqual(0, itemDataPayload.Length % 3, "Item data payload length incorrect");
var legalItems = Legal.Pouch_Items_XY
.Concat(Legal.Pouch_Medicine_XY)
.Concat(Legal.Pouch_TMHM_XY)
.Concat(Legal.Pouch_Berry_XY)
.ToList();
for (var i = 0; i < 206; i++)
{
var itemId = itemDataPayload[i * 3];
var quantity = itemDataPayload[i * 3 + 1];
var scriptId = itemDataPayload[i * 3 + 2];
var itemName = itemNames.Lines[(int)itemId];
var newItemId = legalItems.GetRandom(random);
var newItemName = itemNames.Lines[newItemId];
TestContext.Progress.WriteLine($"Script {scriptId:X4} has item {itemName} x{quantity}, changing to {newItemName}");
itemDataPayload[i * 3] = newItemId;
}
var dataStart = fldItemAmx.CodeLength / sizeof(uint);
var instructions = fldItemAmx.DecompressedInstructions
// Original code
.Take(dataStart)
// Original data header
.Concat(fldItemAmx.DataPayload.Take(9))
// Our own data payload
.Concat(itemDataPayload)
.ToArray();
var newCompressedBytes = PawnUtil.CompressScript(instructions);
var newData = fldItemAmx.Data.Take(fldItemAmx.Header.COD).Concat(newCompressedBytes).ToArray();
// Write new size
BitConverter.GetBytes(newData.Length).CopyTo(newData, 0);
File.WriteAllBytes("old.bin", fldItemAmx.Data);
File.WriteAllBytes("new.bin", newData);
await amxGarc.SetFile((int)AmxNames.FldItem, newData);
await Game.SaveFile(amxGarc);
}
public void TestAlgorithm()
{
//var bytes = new byte[] { 0x8E, 0xA5, 0xA0, 0x81, 0x45 };
//var bytes = new byte[] { 0xF4, 0x40 };
var bytes = new byte[] { 0x8F, 0xA2, 0xA0, 0x81, 0x45 };
var value = PawnUtil.QuickDecompress2(bytes, 1)[0];
var bytes2 = PawnUtil.CompressScript(new[] { value });
TestContext.Progress.WriteLine(string.Join(" ", bytes.Select(b => $"{b:X2}")));
TestContext.Progress.WriteLine(value.ToString("X8"));
TestContext.Progress.WriteLine(string.Join(" ", bytes2.Select(b => $"{b:X2}")));
Assert.AreEqual(bytes, bytes2);
}
public byte[] Write()
{
var dataStart = this.amx.CodeLength / sizeof(uint);
var newItemData = this.Items.SelectMany(item => new[] {
item.ItemId,
item.Unused1,
item.ScriptIdOffset,
}).ToArray();
var originalItemData = this.ItemData;
var newDataPayload = this.amx.DataPayload
// Original 9 data values before item data
.Take(DataPayloadOffsets[this.gameVersion])
// Plus our new item data
.Concat(newItemData)
// Plus the "unused slots" from the original file
.Concat(originalItemData.Skip(newItemData.Length));
var newInstructions = this.amx.DecompressedInstructions
// Original instructions before the data payload
.Take(dataStart)
// Our new data payload from above
.Concat(newDataPayload)
.ToArray();
var newInstructionData = PawnUtil.CompressScript(newInstructions);
var newData = this.amx.Data
// Original file contents before Code section
.Take(this.amx.Header.COD)
// New compressed code/data from above
.Concat(newInstructionData)
.ToArray();
// Write new size to the header
BitConverter.GetBytes(newData.Length).CopyTo(newData, 0);
return(newData);
}