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Added a //g[en[erate]] command, which generates a shape according to a mathematical formula.

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(result > 0) = true = inside
(result <= 0) = false = outside.
This commit is contained in:
TomyLobo 2011-10-02 12:35:05 +02:00 committed by TomyLobo
parent d4c2832437
commit 9fa5c4030b
1 changed files with 92 additions and 0 deletions
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92
src/main/java/com/sk89q/worldedit/commands/GenerationCommands.java
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@ -25,7 +25,10 @@ import com.sk89q.minecraft.util.commands.CommandPermissions;
import com.sk89q.minecraft.util.commands.Logging;
import static com.sk89q.minecraft.util.commands.Logging.LogMode.*;
import com.sk89q.worldedit.*;
import com.sk89q.worldedit.expression.Expression;
import com.sk89q.worldedit.expression.ExpressionException;
import com.sk89q.worldedit.patterns.Pattern;
import com.sk89q.worldedit.regions.Region;
import com.sk89q.worldedit.util.TreeGenerator;
/**
@ -315,4 +318,93 @@ public class GenerationCommands {
player.findFreePosition();
player.print(affected + " block(s) have been created.");
}
@Command(
aliases = { "/generate", "/gen", "/g" },
usage = "<block> <equation>",
desc = "Generates a shape according to a formula. -h for hollow, -r for untransformed coordinates, -o for unscaled, but offset from placement",
flags = "hro",
min = 1,
max = -1
)
@CommandPermissions("worldedit.generation.shape")
@Logging(ALL)
public static void generate(CommandContext args, WorldEdit we,
LocalSession session, LocalPlayer player, EditSession editSession)
throws WorldEditException {
final Pattern pattern = we.getBlockPattern(player, args.getString(0));
final Region region = session.getSelection(player.getWorld());
final Expression expression;
try {
expression = Expression.compile(args.getJoinedStrings(1), "x", "y", "z");
expression.optimize();
} catch (ExpressionException e) {
player.printError(e.getMessage());
return;
}
final ArbitraryShape shape;
if (args.hasFlag('r')) {
shape = new ArbitraryShape(region) {
@Override
protected boolean isInside(double x, double y, double z) {
try {
return expression.evaluate(x, y, z) > 0;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
};
}
else if (args.hasFlag('o')) {
final Vector placement = session.getPlacementPosition(player);
final double placementX = placement.getX();
final double placementY = placement.getY();
final double placementZ = placement.getZ();
shape = new ArbitraryShape(region) {
@Override
protected boolean isInside(double x, double y, double z) {
try {
return expression.evaluate(x-placementX, y-placementY, z-placementZ) > 0;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
};
}
else {
final Vector min = region.getMinimumPoint();
final Vector max = region.getMaximumPoint();
final Vector center = max.add(min).multiply(0.5);
final Vector stretch = max.subtract(center);
shape = new ArbitraryShape(region) {
@Override
protected boolean isInside(double x, double y, double z) {
final Vector scaled = new Vector(x,y,z).subtract(center).divide(stretch);
try {
return expression.evaluate(scaled.getX(), scaled.getY(), scaled.getZ()) > 0;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
};
}
final boolean hollow = args.hasFlag('h');
int affected = shape.generate(editSession, pattern, hollow);
player.findFreePosition();
player.print(affected + " block(s) have been created.");
}
}