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Diffstat (limited to 'src/com/pkrandom/romhandlers/Abstract3DSRomHandler.java')
-rw-r--r--src/com/pkrandom/romhandlers/Abstract3DSRomHandler.java350
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diff --git a/src/com/pkrandom/romhandlers/Abstract3DSRomHandler.java b/src/com/pkrandom/romhandlers/Abstract3DSRomHandler.java
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+++ b/src/com/pkrandom/romhandlers/Abstract3DSRomHandler.java
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+package com.pkrandom.romhandlers;
+
+/*----------------------------------------------------------------------------*/
+/*-- Abstract3DSRomHandler.java - a base class for 3DS rom handlers --*/
+/*-- which standardises common 3DS functions. --*/
+/*-- --*/
+/*-- Part of "Universal Pokemon Randomizer ZX" by the UPR-ZX team --*/
+/*-- Pokemon and any associated names and the like are --*/
+/*-- trademark and (C) Nintendo 1996-2020. --*/
+/*-- --*/
+/*-- The custom code written here is licensed under the terms of the GPL: --*/
+/*-- --*/
+/*-- This program is free software: you can redistribute it and/or modify --*/
+/*-- it under the terms of the GNU General Public License as published by --*/
+/*-- the Free Software Foundation, either version 3 of the License, or --*/
+/*-- (at your option) any later version. --*/
+/*-- --*/
+/*-- This program is distributed in the hope that it will be useful, --*/
+/*-- but WITHOUT ANY WARRANTY; without even the implied warranty of --*/
+/*-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the --*/
+/*-- GNU General Public License for more details. --*/
+/*-- --*/
+/*-- You should have received a copy of the GNU General Public License --*/
+/*-- along with this program. If not, see <http://www.gnu.org/licenses/>. --*/
+/*----------------------------------------------------------------------------*/
+
+import com.pkrandom.FileFunctions;
+import com.pkrandom.ctr.GARCArchive;
+import com.pkrandom.ctr.NCCH;
+import com.pkrandom.exceptions.CannotWriteToLocationException;
+import com.pkrandom.exceptions.EncryptedROMException;
+import com.pkrandom.exceptions.RandomizerIOException;
+import com.pkrandom.pokemon.Type;
+
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.PrintStream;
+import java.security.NoSuchAlgorithmException;
+import java.util.List;
+import java.util.Random;
+
+public abstract class Abstract3DSRomHandler extends AbstractRomHandler {
+
+ private NCCH baseRom;
+ private NCCH gameUpdate;
+ private String loadedFN;
+
+ public Abstract3DSRomHandler(Random random, PrintStream logStream) {
+ super(random, logStream);
+ }
+
+ @Override
+ public boolean loadRom(String filename) {
+ String productCode = getProductCodeFromFile(filename);
+ String titleId = getTitleIdFromFile(filename);
+ if (!this.detect3DSRom(productCode, titleId)) {
+ return false;
+ }
+ // Load inner rom
+ try {
+ baseRom = new NCCH(filename, productCode, titleId);
+ if (!baseRom.isDecrypted()) {
+ throw new EncryptedROMException(filename);
+ }
+ } catch (IOException e) {
+ throw new RandomizerIOException(e);
+ }
+ loadedFN = filename;
+ this.loadedROM(productCode, titleId);
+ return true;
+ }
+
+ protected abstract boolean detect3DSRom(String productCode, String titleId);
+
+ @Override
+ public String loadedFilename() {
+ return loadedFN;
+ }
+
+ protected abstract void loadedROM(String productCode, String titleId);
+
+ protected abstract void savingROM() throws IOException;
+
+ protected abstract String getGameAcronym();
+
+ @Override
+ public boolean saveRomFile(String filename, long seed) {
+ try {
+ savingROM();
+ baseRom.saveAsNCCH(filename, getGameAcronym(), seed);
+ } catch (IOException | NoSuchAlgorithmException e) {
+ if (e.getMessage().contains("Access is denied")) {
+ throw new CannotWriteToLocationException("The randomizer cannot write to this location: " + filename);
+ } else {
+ throw new RandomizerIOException(e);
+ }
+ }
+ return true;
+ }
+
+ @Override
+ public boolean saveRomDirectory(String filename) {
+ try {
+ savingROM();
+ baseRom.saveAsLayeredFS(filename);
+ } catch (IOException e) {
+ throw new RandomizerIOException(e);
+ }
+ return true;
+ }
+
+ protected abstract boolean isGameUpdateSupported(int version);
+
+ @Override
+ public boolean hasGameUpdateLoaded() {
+ return gameUpdate != null;
+ }
+
+ @Override
+ public boolean loadGameUpdate(String filename) {
+ String productCode = getProductCodeFromFile(filename);
+ String titleId = getTitleIdFromFile(filename);
+ try {
+ gameUpdate = new NCCH(filename, productCode, titleId);
+ if (!gameUpdate.isDecrypted()) {
+ throw new EncryptedROMException(filename);
+ }
+ int version = gameUpdate.getVersion();
+ if (!this.isGameUpdateSupported(version)) {
+ System.out.println("Game Update: Supplied unexpected version " + version);
+ }
+ } catch (IOException e) {
+ throw new RandomizerIOException(e);
+ }
+ this.loadedROM(baseRom.getProductCode(), baseRom.getTitleId());
+ return true;
+ }
+
+ @Override
+ public void removeGameUpdate() {
+ gameUpdate = null;
+ this.loadedROM(baseRom.getProductCode(), baseRom.getTitleId());
+ }
+
+ protected abstract String getGameVersion();
+
+ @Override
+ public String getGameUpdateVersion() {
+ return getGameVersion();
+ }
+
+ @Override
+ public void printRomDiagnostics(PrintStream logStream) {
+ baseRom.printRomDiagnostics(logStream, gameUpdate);
+ }
+
+ public void closeInnerRom() throws IOException {
+ baseRom.closeROM();
+ }
+
+ @Override
+ public boolean hasPhysicalSpecialSplit() {
+ // Default value for Gen4+.
+ // Handlers can override again in case of ROM hacks etc.
+ return true;
+ }
+
+ protected byte[] readCode() throws IOException {
+ if (gameUpdate != null) {
+ return gameUpdate.getCode();
+ }
+ return baseRom.getCode();
+ }
+
+ protected void writeCode(byte[] data) throws IOException {
+ baseRom.writeCode(data);
+ }
+
+ protected GARCArchive readGARC(String subpath, boolean skipDecompression) throws IOException {
+ return new GARCArchive(readFile(subpath),skipDecompression);
+ }
+
+ protected GARCArchive readGARC(String subpath, List<Boolean> compressThese) throws IOException {
+ return new GARCArchive(readFile(subpath),compressThese);
+ }
+
+ protected void writeGARC(String subpath, GARCArchive garc) throws IOException {
+ this.writeFile(subpath,garc.getBytes());
+ }
+
+ protected byte[] readFile(String location) throws IOException {
+ if (gameUpdate != null && gameUpdate.hasFile(location)) {
+ return gameUpdate.getFile(location);
+ }
+ return baseRom.getFile(location);
+ }
+
+ protected void writeFile(String location, byte[] data) throws IOException {
+ writeFile(location, data, 0, data.length);
+ }
+
+ protected void readByteIntoFlags(byte[] data, boolean[] flags, int offsetIntoFlags, int offsetIntoData) {
+ int thisByte = data[offsetIntoData] & 0xFF;
+ for (int i = 0; i < 8 && (i + offsetIntoFlags) < flags.length; i++) {
+ flags[offsetIntoFlags + i] = ((thisByte >> i) & 0x01) == 0x01;
+ }
+ }
+
+ protected byte getByteFromFlags(boolean[] flags, int offsetIntoFlags) {
+ int thisByte = 0;
+ for (int i = 0; i < 8 && (i + offsetIntoFlags) < flags.length; i++) {
+ thisByte |= (flags[offsetIntoFlags + i] ? 1 : 0) << i;
+ }
+ return (byte) thisByte;
+ }
+
+ protected int readWord(byte[] data, int offset) {
+ return (data[offset] & 0xFF) | ((data[offset + 1] & 0xFF) << 8);
+ }
+
+ protected void writeWord(byte[] data, int offset, int value) {
+ data[offset] = (byte) (value & 0xFF);
+ data[offset + 1] = (byte) ((value >> 8) & 0xFF);
+ }
+
+ protected int readLong(byte[] data, int offset) {
+ return (data[offset] & 0xFF) | ((data[offset + 1] & 0xFF) << 8) | ((data[offset + 2] & 0xFF) << 16)
+ | ((data[offset + 3] & 0xFF) << 24);
+ }
+
+ protected void writeLong(byte[] data, int offset, int value) {
+ data[offset] = (byte) (value & 0xFF);
+ data[offset + 1] = (byte) ((value >> 8) & 0xFF);
+ data[offset + 2] = (byte) ((value >> 16) & 0xFF);
+ data[offset + 3] = (byte) ((value >> 24) & 0xFF);
+ }
+
+ protected void writeFile(String location, byte[] data, int offset, int length) throws IOException {
+ if (offset != 0 || length != data.length) {
+ byte[] newData = new byte[length];
+ System.arraycopy(data, offset, newData, 0, length);
+ data = newData;
+ }
+ baseRom.writeFile(location, data);
+ if (gameUpdate != null && gameUpdate.hasFile(location)) {
+ gameUpdate.writeFile(location, data);
+ }
+ }
+
+ public String getTitleIdFromLoadedROM() {
+ return baseRom.getTitleId();
+ }
+
+ protected static String getProductCodeFromFile(String filename) {
+ try {
+ long ncchStartingOffset = NCCH.getCXIOffsetInFile(filename);
+ if (ncchStartingOffset == -1) {
+ return null;
+ }
+ FileInputStream fis = new FileInputStream(filename);
+ fis.skip(ncchStartingOffset + 0x150);
+ byte[] productCode = FileFunctions.readFullyIntoBuffer(fis, 0x10);
+ fis.close();
+ return new String(productCode, "UTF-8").trim();
+ } catch (IOException e) {
+ throw new RandomizerIOException(e);
+ }
+ }
+
+ public static String getTitleIdFromFile(String filename) {
+ try {
+ long ncchStartingOffset = NCCH.getCXIOffsetInFile(filename);
+ if (ncchStartingOffset == -1) {
+ return null;
+ }
+ FileInputStream fis = new FileInputStream(filename);
+ fis.skip(ncchStartingOffset + 0x118);
+ byte[] programId = FileFunctions.readFullyIntoBuffer(fis, 0x8);
+ fis.close();
+ reverseArray(programId);
+ return bytesToHex(programId);
+ } catch (IOException e) {
+ throw new RandomizerIOException(e);
+ }
+ }
+
+ private static void reverseArray(byte[] bytes) {
+ for (int i = 0; i < bytes.length / 2; i++) {
+ byte temp = bytes[i];
+ bytes[i] = bytes[bytes.length - i - 1];
+ bytes[bytes.length - i - 1] = temp;
+ }
+ }
+
+ private static final char[] HEX_ARRAY = "0123456789ABCDEF".toCharArray();
+ private static String bytesToHex(byte[] bytes) {
+ char[] hexChars = new char[bytes.length * 2];
+ for (int i = 0; i < bytes.length; i++) {
+ int unsignedByte = bytes[i] & 0xFF;
+ hexChars[i * 2] = HEX_ARRAY[unsignedByte >>> 4];
+ hexChars[i * 2 + 1] = HEX_ARRAY[unsignedByte & 0x0F];
+ }
+ return new String(hexChars);
+ }
+
+ protected int typeTMPaletteNumber(Type t, boolean isGen7) {
+ if (t == null) {
+ return 322; // CURSE
+ }
+ switch (t) {
+ case DARK:
+ return 309;
+ case DRAGON:
+ return 310;
+ case PSYCHIC:
+ return 311;
+ case NORMAL:
+ return 312;
+ case POISON:
+ return 313;
+ case ICE:
+ return 314;
+ case FIGHTING:
+ return 315;
+ case FIRE:
+ return 316;
+ case WATER:
+ return 317;
+ case FLYING:
+ return 323;
+ case GRASS:
+ return 318;
+ case ROCK:
+ return 319;
+ case ELECTRIC:
+ return 320;
+ case GROUND:
+ return 321;
+ case GHOST:
+ default:
+ return 322; // for CURSE
+ case STEEL:
+ return 324;
+ case BUG:
+ return 325;
+ case FAIRY:
+ return isGen7 ? 555 : 546;
+ }
+ }
+}
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