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Added EditSession.forestGen() that takes Iterable<Vector2D>.

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This commit is contained in:
sk89q 2014-02-28 16:14:44 -08:00
parent 2e2d432d11
commit 6bfcaca6d3
1 changed files with 52 additions and 13 deletions
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65
src/main/java/com/sk89q/worldedit/EditSession.java
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@ -18,19 +18,6 @@
*/
package com.sk89q.worldedit;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Deque;
import java.util.HashMap;
import java.util.HashSet;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import java.util.Random;
import java.util.Set;
import java.util.Stack;
import com.sk89q.worldedit.bags.BlockBag;
import com.sk89q.worldedit.bags.BlockBagException;
import com.sk89q.worldedit.bags.UnplaceableBlockException;
@ -54,6 +41,8 @@ import com.sk89q.worldedit.shape.RegionShape;
import com.sk89q.worldedit.shape.WorldEditExpressionEnvironment;
import com.sk89q.worldedit.util.TreeGenerator;
import java.util.*;
/**
* This class can wrap all block editing operations into one "edit session" that
* stores the state of the blocks before modification. This allows for easy undo
@ -2752,6 +2741,56 @@ public class EditSession {
return affected;
}
/**
* Makes a forest.
*
* @param it an iterator over the points within the region
* @param upperY the Y to start from (upperY >= lowerY), inclusive
* @param lowerY the Y to end at (upperY >= lowerY), inclusive
* @param density density of the forest
* @param treeGenerator the tree generator
* @return number of trees created
* @throws MaxChangedBlocksException
*/
public int makeForest(Iterable<Vector2D> it, int upperY, int lowerY,
double density, TreeGenerator treeGenerator) throws MaxChangedBlocksException {
if (upperY < lowerY) {
throw new IllegalArgumentException("upperY must be greater than or equal to lowerY");
}
int affected = 0;
for (Vector2D pt : it) {
// Don't want to be in the ground
if (!getBlock(pt.toVector(upperY)).isAir()) {
continue;
}
// The gods don't want a tree here
if (Math.random() >= density) {
continue;
} // def 0.05
for (int y = upperY; y >= lowerY; --y) {
// Check if we hit the ground
Vector testPt = pt.toVector(y);
int t = getBlock(testPt).getType();
if (t == BlockID.GRASS || t == BlockID.DIRT) {
treeGenerator.generate(this, testPt.add(0, 1, 0));
++affected;
break;
} else if (t == BlockID.SNOW) {
setBlock(testPt, new BaseBlock(BlockID.AIR));
} else if (t != BlockID.AIR) { // Trees won't grow on this!
break;
}
}
}
return affected;
}
/**
* Get the block distribution inside a region.
*