Class IcebergFeature

java.lang.Object

net.minecraft.world.level.levelgen.feature.Feature<BlockStateConfiguration>

net.minecraft.world.level.levelgen.feature.IcebergFeature

public class IcebergFeature
extends Feature<BlockStateConfiguration>

This feature generates part of the icebergs found in frozen oceans. Specifically, it generates tall, triangular prism icebergs, and "donut" or torus shaped icebergs. Other icebergs are generated by the frozen ocean surface builder instead.

Field Summary

Fields inherited from class Feature

BAMBOO, BASALT_COLUMNS, BASALT_PILLAR, BLOCK_BLOB, BLOCK_COLUMN, BLOCK_PILE, BLUE_ICE, BONUS_CHEST, CHORUS_PLANT, CORAL_CLAW, CORAL_MUSHROOM, CORAL_TREE, DELTA_FEATURE, DESERT_WELL, DISK, DRIPSTONE_CLUSTER, END_GATEWAY, END_ISLAND, END_PLATFORM, END_SPIKE, FALLEN_TREE, FILL_LAYER, FLOWER, FOSSIL, FREEZE_TOP_LAYER, GEODE, GLOWSTONE_BLOB, HUGE_BROWN_MUSHROOM, HUGE_FUNGUS, HUGE_RED_MUSHROOM, ICEBERG, KELP, LAKE, LARGE_DRIPSTONE, MONSTER_ROOM, MULTIFACE_GROWTH, NETHER_FOREST_VEGETATION, NO_BONEMEAL_FLOWER, NO_OP, ORE, POINTED_DRIPSTONE, RANDOM_BOOLEAN_SELECTOR, RANDOM_PATCH, RANDOM_SELECTOR, REPLACE_BLOBS, REPLACE_SINGLE_BLOCK, ROOT_SYSTEM, SCATTERED_ORE, SCULK_PATCH, SEA_PICKLE, SEAGRASS, SIMPLE_BLOCK, SIMPLE_RANDOM_SELECTOR, SPIKE, SPRING, TREE, TWISTING_VINES, UNDERWATER_MAGMA, VEGETATION_PATCH, VINES, VOID_START_PLATFORM, WATERLOGGED_VEGETATION_PATCH, WEEPING_VINES

Constructor Summary

Constructors

Constructor	Description
IcebergFeature(com.mojang.serialization.Codec<BlockStateConfiguration> codec)

Method Summary

Modifier and Type	Method	Description
private boolean	belowIsAir(BlockGetter level, BlockPos pos)
private void	carve(int radius, int yOff, BlockPos globalOrigin, LevelAccessor level, boolean underWater, double angle, BlockPos localOrigin, int shapeEllipseA, int shapeEllipseC)
private void	generateCutOut(RandomSource random, LevelAccessor level, int width, int height, BlockPos globalOrigin, boolean isEllipse, int shapeEllipseA, double shapeAngle, int shapeEllipseC)
private void	generateIcebergBlock(LevelAccessor level, RandomSource random, BlockPos origin, int height, int xo, int yOff, int zo, int radius, int a, boolean isEllipse, int shapeEllipseC, double shapeAngle, boolean snowOnTop, BlockState mainBlockState)
private int	getEllipseC(int yOff, int height, int shapeEllipseC)
private int	heightDependentRadiusEllipse(int yOff, int height, int width)	Given a horizontal projection of an iceberg, defines the three-dimensional extrusion by defining a radius at any given y value.
private int	heightDependentRadiusRound(RandomSource random, int yOff, int height, int width)
private int	heightDependentRadiusSteep(RandomSource random, int yOff, int height, int width)	Given a horizontal projection of an iceberg, defines the three-dimensional extrusion by defining a radius at any given y value.
private static boolean	isIcebergState(BlockState state)
boolean	place(FeaturePlaceContext<BlockStateConfiguration> context)	Places the given feature at the given location.
private void	removeFloatingSnowLayer(LevelAccessor level, BlockPos pos)
private void	setIcebergBlock(BlockPos pos, LevelAccessor level, RandomSource random, int hDiff, int height, boolean isEllipse, boolean snowOnTop, BlockState mainBlockState)
private double	signedDistanceCircle(int xo, int zo, BlockPos origin, int radius, RandomSource random)
private double	signedDistanceEllipse(int xo, int zo, BlockPos origin, int a, int c, double angle)	Given an ellipse defined by the equation (x/a)^2 + (y/b)^2 = 1, where a and b are the semi-major and semi-minor axes respectively, this computes the distance between an arbitrary point and the ellipse.
private void	smooth(LevelAccessor level, BlockPos origin, int width, int height, boolean isEllipse, int shapeEllipseA)	Smooths out an iceberg by removing blocks which either have air below, or non-iceberg blocks on three or more horizontal sides, with air.

Methods inherited from class Feature

checkNeighbors, configuredCodec, isAdjacentToAir, isReplaceable, markAboveForPostProcessing, place, safeSetBlock, setBlock

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

IcebergFeature

public IcebergFeature(com.mojang.serialization.Codec<BlockStateConfiguration> codec)

Method Details

place

public boolean place(FeaturePlaceContext<BlockStateConfiguration> context)

Description copied from class: Feature

Places the given feature at the given location. During world generation, features are provided with a 3x3 region of chunks, centered on the chunk being generated, that they can safely generate into.

Specified by:

place in class Feature<BlockStateConfiguration>

Parameters:

context - A context object with a reference to the level and the position the feature is being placed at

generateCutOut

private void generateCutOut(RandomSource random,
 LevelAccessor level,
 int width,
 int height,
 BlockPos globalOrigin,
 boolean isEllipse,
 int shapeEllipseA,
 double shapeAngle,
 int shapeEllipseC)

carve

private void carve(int radius,
 int yOff,
 BlockPos globalOrigin,
 LevelAccessor level,
 boolean underWater,
 double angle,
 BlockPos localOrigin,
 int shapeEllipseA,
 int shapeEllipseC)

removeFloatingSnowLayer

private void removeFloatingSnowLayer(LevelAccessor level,
 BlockPos pos)

generateIcebergBlock

private void generateIcebergBlock(LevelAccessor level,
 RandomSource random,
 BlockPos origin,
 int height,
 int xo,
 int yOff,
 int zo,
 int radius,
 int a,
 boolean isEllipse,
 int shapeEllipseC,
 double shapeAngle,
 boolean snowOnTop,
 BlockState mainBlockState)

setIcebergBlock

private void setIcebergBlock(BlockPos pos,
 LevelAccessor level,
 RandomSource random,
 int hDiff,
 int height,
 boolean isEllipse,
 boolean snowOnTop,
 BlockState mainBlockState)

getEllipseC

private int getEllipseC(int yOff,
 int height,
 int shapeEllipseC)

signedDistanceCircle

private double signedDistanceCircle(int xo,
 int zo,
 BlockPos origin,
 int radius,
 RandomSource random)

signedDistanceEllipse

private double signedDistanceEllipse(int xo,
 int zo,
 BlockPos origin,
 int a,
 int c,
 double angle)

Given an ellipse defined by the equation (x/a)^2 + (y/b)^2 = 1, where a and b are the semi-major and semi-minor axes respectively, this computes the distance between an arbitrary point and the ellipse. The point (x, y) is within the ellipse if the return value is invalid input: '<' 0, outside the ellipse if the return value is > 0 and exactly on the edge of the ellipse if the return value is 0.

Parameters:

xo - The x position of the point to measure the distance to.

zo - The z position of the point to measure distance to.

origin - The center point of the ellipse.

a - The semi-major axis (a) of the ellipse.

c - The semi-minor axis (b) of the ellipse

angle - The rotation angle of the ellipse (the angle from the positive horizontal axis to the ellipse's major axis).

heightDependentRadiusRound

private int heightDependentRadiusRound(RandomSource random,
 int yOff,
 int height,
 int width)

heightDependentRadiusEllipse

private int heightDependentRadiusEllipse(int yOff,
 int height,
 int width)

Given a horizontal projection of an iceberg, defines the three-dimensional extrusion by defining a radius at any given y value. The radius curve is a parabolic function, resulting in more rounded iceberg peaks.

Parameters:

yOff - The y value to calculate a radius at.

height - The maximum height of the iceberg.

width - The maximum radius of the iceberg, at the horizontal.

heightDependentRadiusSteep

private int heightDependentRadiusSteep(RandomSource random,
 int yOff,
 int height,
 int width)

Given a horizontal projection of an iceberg, defines the three-dimensional extrusion by defining a radius at any given y value. The radius curve is a linear function, with a slope that is both dependent on the majorAxis and randomly varies, which results in steep conical icebergs.

Parameters:

random - A random to use to vary the slope of the falloff curve.

yOff - The y value to calculate a radius at.

height - The maximum height of the iceberg.

width - The maximum radius radius of the iceberg, at the horizontal.

isIcebergState

private static boolean isIcebergState(BlockState state)

belowIsAir

private boolean belowIsAir(BlockGetter level,
 BlockPos pos)

smooth

private void smooth(LevelAccessor level,
 BlockPos origin,
 int width,
 int height,
 boolean isEllipse,
 int shapeEllipseA)

Smooths out an iceberg by removing blocks which either have air below, or non-iceberg blocks on three or more horizontal sides, with air.