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Properly support extended world heights (y > 255) in tripleBlockCoord (#1805)

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Jordan 2022-06-17 15:39:27 +01:00 committed by GitHub
parent 5b72f396bb
commit d2b4154cc0
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1 changed files with 14 additions and 3 deletions
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17
worldedit-core/src/main/java/com/fastasyncworldedit/core/util/MathMan.java
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@ -167,9 +167,20 @@ public class MathMan {
return (((triple >> 40) & 0xffffff) << 38) >> 38;
}
/**
* Pack a chunk-block coordinate into an int. Supports x and z 0 -> 15 and y = -2048 -> 2047
*
* @param x x coordinate
* @param y y coordinate
* @param z z coordinate
* @return int packed by x, y and z coordinates
*/
public static int tripleBlockCoord(int x, int y, int z) {
// account for the fact y can be negative now. Assume it won't be less than -256
y += 256;
// We have 12 bits available to Y value, so keep it 0 -> 4095
if (y < -2048 || y > 2047) {
throw new UnsupportedOperationException("TripleBlockCoord Y value cannot be outside range -2048 <= y <= 2047");
}
y += 2048;
return ((x & 15) << 16 | (z & 15) << 12 | y);
}
@ -182,7 +193,7 @@ public class MathMan {
}
public static int untripleBlockCoordY(int triple) {
return (triple & 0x1ff) - 256;
return (triple & 0xfff) - 2048;
}
public static int untripleBlockCoordZ(int triple) {