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package net.oni2.aeinstaller.backend.oni; |
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|
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import java.io.File; |
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import java.io.FileNotFoundException; |
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import java.io.IOException; |
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import java.io.RandomAccessFile; |
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import java.util.HashSet; |
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|
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/** |
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* @author Christian Illy |
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*/ |
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public class PersistDat { |
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private RandomAccessFile dat = null; |
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|
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/** |
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* Open the given persist.dat |
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* |
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* @param dat |
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* Path to persist.dat |
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*/ |
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public PersistDat(File dat) { |
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try { |
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this.dat = new RandomAccessFile(dat, "rw"); |
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} catch (FileNotFoundException e) { |
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e.printStackTrace(); |
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} |
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} |
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|
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/** |
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* @return Currently unlocked levels in persist.dat |
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*/ |
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public HashSet<Integer> getUnlockedLevels() { |
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HashSet<Integer> result = new HashSet<Integer>(); |
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if (dat != null) { |
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try { |
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dat.seek(8); |
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for (int i = 0; i < 32; i++) { |
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int val = dat.read(); |
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for (int j = 0; j < 8; j++) { |
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if ((val & (1 << j)) > 0) { |
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result.add(i * 8 + j); |
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} |
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} |
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} |
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} catch (IOException e) { |
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// TODO Auto-generated catch block |
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e.printStackTrace(); |
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} |
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} |
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return result; |
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} |
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|
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/** |
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* @param unlock |
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* Levels to be unlocked in persist.dat |
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*/ |
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public void setUnlockedLevels(HashSet<Integer> unlock) { |
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if (dat != null) { |
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if (unlock != null) { |
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try { |
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dat.seek(8); |
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for (int i = 0; i < 32; i++) { |
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int val = 0; |
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for (int j = 0; j < 8; j++) { |
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if (unlock.contains(i * 8 + j)) |
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val |= 1 << j; |
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} |
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dat.write(val); |
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} |
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} catch (IOException e) { |
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// TODO Auto-generated catch block |
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e.printStackTrace(); |
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} |
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} |
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} |
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} |
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|
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/** |
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* Close file |
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*/ |
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public void close() { |
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if (dat != null) { |
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try { |
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dat.close(); |
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} catch (IOException e) { |
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e.printStackTrace(); |
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} |
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} |
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} |
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} |
