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finished the 3d version of the expand() method

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BuildTools 2017-01-30 21:12:51 -05:00
parent 592b3ca0f3
commit ba8a2eee0a
2 changed files with 59 additions and 34 deletions
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8
src/regions/BitRegion2D.java
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@ -59,7 +59,7 @@ public class BitRegion2D
* @param index
* @return
*/
protected int[] getCoords(int index)
public int[] getCoords(int index)
{
if (index++ == 0) return new int[] {0, 0};
@ -131,13 +131,15 @@ public class BitRegion2D
*/
public void bitshift(int shift, int fromIndex)
{
if (shift < 1) return;
if (shift < 1)
return;
int toAboveThisIndex = fromIndex + shift - 1;
for (int i = blocks.size() + shift; i > toAboveThisIndex; i--)
{
blocks.set(i, blocks.get(i - shift));
}
blocks.clear(fromIndex, toAboveThisIndex);
}

81
src/regions/BitRegion3D.java
View file

@ -13,7 +13,7 @@ public class BitRegion3D
║ ╚══════════════════════════════════════════════════════════════════════════════════════════╝ ║
╚══════════════════════════════════════════════════════════════════════════════════════════════╝ */
protected int[] sides; public int[] getSides() { return sides; }
protected int[] sides;
protected final BitSet blocks;
@ -35,6 +35,15 @@ public class BitRegion3D
╚══════════════════════════════════════════════════════════════════════════════════════════════╝ */
/**
* Return side-lengths of bounding box.
*/
public int[] getSides()
{
return sides;
}
/**
* Get number of blocks contained in the region.
*/
@ -59,9 +68,9 @@ public class BitRegion3D
* @param index
* @return
*/
protected int[] getCoords3D(int index)
public int[] getCoords(int index)
{
if (index++ == 0) return new int[] {0, 0, 0};
if (index++ == 0) return new int[] {0, 0, 0};//TODO do I actually need to include this method
int[] xzy = new int[3];
@ -81,7 +90,7 @@ public class BitRegion3D
* @param coordinate
* @return
*/
protected int getIndex(int x, int z, int y)
public int getIndex(int x, int z, int y)
{
return (y * sides[0] * sides[1]) + (z * sides[0]) + x;
}
@ -131,37 +140,51 @@ public class BitRegion3D
/**
*
* @param shift
* @param fromIndex
*/
public void bitshift(int shift, int fromIndex)
{
if (shift < 1) return;
int toAboveThisIndex = fromIndex + shift - 1;
for (int i = blocks.size() + shift; i > toAboveThisIndex; i--)
blocks.set(i - shift, blocks.get(i));
blocks.clear(fromIndex, toAboveThisIndex);
}
/**
*
* @param xShift
* @param zShift
* @param yShift
* @param xMin
* @param xMax
* @param zMin
* @param zMax
* @param yMin
* @param yMax
*/
public void expand(int xMin, int xMax, int zMin, int zMax, int yMin, int yMax)
{
int[] newSides = new int[] {xMax - xMin + 1,
final int[] newSides = new int[] { xMax - xMin + 1,
zMax - zMin + 1,
yMax - yMin + 1 };
/* add empty space before each x row
* add empty space at bottom
*/
final int yRoof = (newSides[2] - sides[2] + yMin) * newSides[0] * newSides[1];
final int zRoof = (newSides[1] - sides[1] + zMin) * newSides[0];
final int xRoof = newSides[0] - sides[0] + xMin;
final int yIncrement = yRoof + -yMin * newSides[0] * newSides[1];
final int zIncrement = zRoof + -zMin * newSides[0];
final int xIncrement = xRoof + -xMin;
int index = sides[0] * sides[1] * sides[2] - 1;
int shift = newSides[0] * newSides[1] * newSides[2] - 1 - (yRoof + zRoof + xRoof) - index;
int newIndex = index + shift;
int x, z, y;
for (y = sides[2]; y > 0; y--)
{
for (z = sides[1]; z > 0; z--)
{
newIndex = index + shift;
for (x = sides[0]; x > 0; x--)
{
blocks.set(newIndex--, blocks.get(index--));
}
shift -= xIncrement;
blocks.clear(index + shift, newIndex);
}
shift -= zIncrement;
blocks.clear(index + shift, newIndex);
}
shift -= yIncrement;
blocks.clear(index + shift, newIndex);
}