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Map handling improvements.

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Fixed an NPE occurring under certain circumstances.
Made it possible for maps to exist without having to associate them with a world.
This commit is contained in:
Rigby 2011-07-26 21:04:18 +01:00 committed by EvilSeph
parent ae43b837b0
commit bb89847632
1 changed files with 16 additions and 11 deletions
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27
src/main/java/net/minecraft/server/WorldMap.java
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@ -45,15 +45,16 @@ public class WorldMap extends WorldMapBase {
if (least != 0L && most != 0L) {
this.uniqueId = new UUID(most, least);
}
CraftWorld world = (CraftWorld) server.getWorld(this.uniqueId);
// Check if the stored world details are correct.
if (world == null) {
/* All Maps which do not have their valid world loaded are set to a dimension which hopefully won't be reached.
This is to prevent them being corrupted with the wrong map data. */
dimension = 127;
} else {
dimension = (byte) world.getHandle().dimension;
CraftWorld world = (CraftWorld) server.getWorld(this.uniqueId);
// Check if the stored world details are correct.
if (world == null) {
/* All Maps which do not have their valid world loaded are set to a dimension which hopefully won't be reached.
This is to prevent them being corrupted with the wrong map data. */
dimension = 127;
} else {
dimension = (byte) world.getHandle().dimension;
}
}
}
@ -110,8 +111,12 @@ public class WorldMap extends WorldMapBase {
}
}
}
nbttagcompound.setLong("UUIDLeast", this.uniqueId.getLeastSignificantBits());
nbttagcompound.setLong("UUIDMost", this.uniqueId.getMostSignificantBits());
/* Perform a second check to see if a matching world was found, this is a necessary
change incase Maps are forcefully unlinked from a World and lack a UID.*/
if (this.uniqueId != null) {
nbttagcompound.setLong("UUIDLeast", this.uniqueId.getLeastSignificantBits());
nbttagcompound.setLong("UUIDMost", this.uniqueId.getMostSignificantBits());
}
}
// CraftBukkit end
nbttagcompound.a("dimension", this.map);