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added BeatmapParser#parseOnlyTimingPoints

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This commit is contained in:
yugecin 2016-12-18 23:39:39 +01:00
parent 77c6dfd65a
commit ff68145ba3
1 changed files with 67 additions and 15 deletions
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82
src/itdelatrisu/opsu/beatmap/BeatmapParser.java
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@ -212,6 +212,52 @@ public class BeatmapParser {
return lastNode;
}
/**
* Parses the timingpoints for a beatmap.
* @param map the map to parse timingpoints for
*/
public static void parseOnlyTimingPoints(Beatmap map) {
if (map == null || map.getFile() == null || !map.getFile().exists()) {
return;
}
if (map.timingPoints == null) {
map.timingPoints = new ArrayList<TimingPoint>();
}
try (
InputStream bis = new BufferedInputStream(new FileInputStream(map.getFile()));
MD5InputStreamWrapper md5stream = (!hasNoMD5Algorithm) ? new MD5InputStreamWrapper(bis) : null;
BufferedReader in = new BufferedReader(new InputStreamReader((md5stream != null) ? md5stream : bis, "UTF-8"));
) {
String line;
boolean found = false;
while((line = in.readLine()) != null) {
line = line.trim();
if(!isValidLine(line)) {
continue;
}
if ("[TimingPoints]".equals(line)) {
found = true;
continue;
}
if (found) {
if (line.startsWith("[")) {
break;
}
parseSectionTimingPoints(map, line);
}
}
map.timingPoints.trimToSize();
} catch (IOException e) {
ErrorHandler.error(String.format("Failed to read file '%s'.", map.getFile().getAbsolutePath()), e, false);
} catch (NoSuchAlgorithmException e) {
ErrorHandler.error("Failed to get MD5 hash stream.", e, true);
// retry without MD5
hasNoMD5Algorithm = true;
parseOnlyTimingPoints(map);
}
}
/**
* Parses a beatmap.
* @param file the file to parse
@ -493,21 +539,7 @@ public class BeatmapParser {
break;
try {
// parse timing point
TimingPoint timingPoint = new TimingPoint(line);
// calculate BPM
if (!timingPoint.isInherited()) {
int bpm = Math.round(60000 / timingPoint.getBeatLength());
if (beatmap.bpmMin == 0)
beatmap.bpmMin = beatmap.bpmMax = bpm;
else if (bpm < beatmap.bpmMin)
beatmap.bpmMin = bpm;
else if (bpm > beatmap.bpmMax)
beatmap.bpmMax = bpm;
}
beatmap.timingPoints.add(timingPoint);
parseSectionTimingPoints(beatmap, line);
} catch (Exception e) {
Log.warn(String.format("Failed to read timing point '%s' for file '%s'.",
line, file.getAbsolutePath()), e);
@ -624,6 +656,26 @@ public class BeatmapParser {
return beatmap;
}
/**
* Parses a timing point in the timingpoints section of a beatmap file
* @param beatmap the beatmap to add the timingpoint to
* @param line the line with timingpoint to parse
*/
private static void parseSectionTimingPoints(Beatmap beatmap, String line) {
TimingPoint timingPoint = new TimingPoint(line);
if(!timingPoint.isInherited()) {
int bpm = Math.round(60000 / timingPoint.getBeatLength());
if( beatmap.bpmMin == 0 ) {
beatmap.bpmMin = beatmap.bpmMax = bpm;
} else if( bpm < beatmap.bpmMin ) {
beatmap.bpmMin = bpm;
} else if( bpm > beatmap.bpmMax ) {
beatmap.bpmMax = bpm;
}
}
beatmap.timingPoints.add(timingPoint);
}
/**
* Parses all hit objects in a beatmap.
* @param beatmap the beatmap to parse