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cn.nukkit.block.BlockVine Maven / Gradle / Ivy
package cn.nukkit.block;
import cn.nukkit.Player;
import cn.nukkit.api.PowerNukkitOnly;
import cn.nukkit.api.Since;
import cn.nukkit.blockproperty.BlockProperties;
import cn.nukkit.blockproperty.IntBlockProperty;
import cn.nukkit.entity.Entity;
import cn.nukkit.event.block.BlockGrowEvent;
import cn.nukkit.event.block.BlockSpreadEvent;
import cn.nukkit.item.Item;
import cn.nukkit.item.ItemBlock;
import cn.nukkit.item.ItemTool;
import cn.nukkit.level.Level;
import cn.nukkit.math.AxisAlignedBB;
import cn.nukkit.math.BlockFace;
import cn.nukkit.math.SimpleAxisAlignedBB;
import org.jetbrains.annotations.NotNull;
import javax.annotation.Nullable;
import java.util.EnumSet;
import java.util.Random;
import java.util.Set;
import java.util.concurrent.ThreadLocalRandom;
/**
* @author Pub4Game
* @since 15.01.2016
*/
public class BlockVine extends BlockTransparentMeta {
private static final IntBlockProperty VINE_DIRECTION_BITS = new IntBlockProperty("vine_direction_bits", false, 15);
@PowerNukkitOnly
@Since("1.5.0.0-PN")
public static final BlockProperties PROPERTIES = new BlockProperties(VINE_DIRECTION_BITS);
public BlockVine(int meta) {
super(meta);
}
public BlockVine() {
this(0);
}
@Override
public String getName() {
return "Vines";
}
@Override
public int getId() {
return VINE;
}
@Since("1.4.0.0-PN")
@PowerNukkitOnly
@NotNull
@Override
public BlockProperties getProperties() {
return PROPERTIES;
}
@Override
public double getHardness() {
return 0.2;
}
@Override
public double getResistance() {
return 1;
}
@Override
public boolean canPassThrough() {
return true;
}
@Override
public boolean hasEntityCollision() {
return true;
}
@Override
public boolean canBeReplaced() {
return true;
}
@Override
public boolean canBeClimbed() {
return true;
}
@PowerNukkitOnly
@Override
public int getWaterloggingLevel() {
return 1;
}
@Override
public boolean canBeFlowedInto() {
return true;
}
@Override
public void onEntityCollide(Entity entity) {
entity.resetFallDistance();
entity.onGround = true;
}
@Override
public boolean isSolid() {
return false;
}
@Since("1.3.0.0-PN")
@PowerNukkitOnly
@Override
public boolean isSolid(BlockFace side) {
return false;
}
@Override
protected AxisAlignedBB recalculateBoundingBox() {
double f1 = 1;
double f2 = 1;
double f3 = 1;
double f4 = 0;
double f5 = 0;
double f6 = 0;
boolean flag = this.getDamage() > 0;
if ((this.getDamage() & 0x02) > 0) {
f4 = Math.max(f4, 0.0625);
f1 = 0;
f2 = 0;
f5 = 1;
f3 = 0;
f6 = 1;
flag = true;
}
if ((this.getDamage() & 0x08) > 0) {
f1 = Math.min(f1, 0.9375);
f4 = 1;
f2 = 0;
f5 = 1;
f3 = 0;
f6 = 1;
flag = true;
}
if ((this.getDamage() & 0x01) > 0) {
f3 = Math.min(f3, 0.9375);
f6 = 1;
f1 = 0;
f4 = 1;
f2 = 0;
f5 = 1;
flag = true;
}
if (!flag && this.up().isSolid()) {
f2 = Math.min(f2, 0.9375);
f5 = 1;
f1 = 0;
f4 = 1;
f3 = 0;
f6 = 1;
}
return new SimpleAxisAlignedBB(
this.x + f1,
this.y + f2,
this.z + f3,
this.x + f4,
this.y + f5,
this.z + f6
);
}
@Override
public boolean place(@NotNull Item item, @NotNull Block block, @NotNull Block target, @NotNull BlockFace face, double fx, double fy, double fz, @Nullable Player player) {
if (block.getId() != VINE && target.isSolid() && face.getHorizontalIndex() != -1) {
this.setDamage(getMetaFromFace(face.getOpposite()));
this.getLevel().setBlock(block, this, true, true);
return true;
}
return false;
}
@Override
public Item[] getDrops(Item item) {
if (item.isShears()) {
return new Item[]{
toItem()
};
} else {
return Item.EMPTY_ARRAY;
}
}
@Override
public Item toItem() {
return new ItemBlock(this, 0);
}
@Override
public int onUpdate(int type) {
if (type == Level.BLOCK_UPDATE_NORMAL) {
Block up = this.up();
Set upFaces = up instanceof BlockVine ? ((BlockVine) up).getFaces() : null;
Set faces = this.getFaces();
for (BlockFace face : BlockFace.Plane.HORIZONTAL) {
if (!this.getSide(face).isSolid() && (upFaces == null || !upFaces.contains(face))) {
faces.remove(face);
}
}
if (faces.isEmpty() && !up.isSolid()) {
this.getLevel().useBreakOn(this, null, null, true);
return Level.BLOCK_UPDATE_NORMAL;
}
int meta = getMetaFromFaces(faces);
if (meta != this.getDamage()) {
this.level.setBlock(this, Block.get(VINE, meta), true);
return Level.BLOCK_UPDATE_NORMAL;
}
} else if (type == Level.BLOCK_UPDATE_RANDOM) {
Random random = ThreadLocalRandom.current();
if (random.nextInt(4) == 0) {
BlockFace face = BlockFace.random(random);
Block block = this.getSide(face);
int faceMeta = getMetaFromFace(face);
int meta = this.getDamage();
if (this.y < 255 && face == BlockFace.UP && block.getId() == AIR) {
if (this.canSpread()) {
for (BlockFace horizontalFace : BlockFace.Plane.HORIZONTAL) {
if (random.nextBoolean() || !this.getSide(horizontalFace).getSide(face).isSolid()) {
meta &= ~getMetaFromFace(horizontalFace);
}
}
putVineOnHorizontalFace(block, meta, this);
}
} else if (face.getHorizontalIndex() != -1 && (meta & faceMeta) != faceMeta) {
if (this.canSpread()) {
if (block.getId() == AIR) {
BlockFace cwFace = face.rotateY();
BlockFace ccwFace = face.rotateYCCW();
Block cwBlock = block.getSide(cwFace);
Block ccwBlock = block.getSide(ccwFace);
int cwMeta = getMetaFromFace(cwFace);
int ccwMeta = getMetaFromFace(ccwFace);
boolean onCw = (meta & cwMeta) == cwMeta;
boolean onCcw = (meta & ccwMeta) == ccwMeta;
if (onCw && cwBlock.isSolid()) {
putVine(block, getMetaFromFace(cwFace), this);
} else if (onCcw && ccwBlock.isSolid()) {
putVine(block, getMetaFromFace(ccwFace), this);
} else if (onCw && cwBlock.getId() == AIR && this.getSide(cwFace).isSolid()) {
putVine(cwBlock, getMetaFromFace(face.getOpposite()), this);
} else if (onCcw && ccwBlock.getId() == AIR && this.getSide(ccwFace).isSolid()) {
putVine(ccwBlock, getMetaFromFace(face.getOpposite()), this);
} else if (block.up().isSolid()) {
putVine(block, 0, this);
}
} else if (!block.isTransparent()) {
meta |= getMetaFromFace(face);
putVine(this, meta, null);
}
}
} else if (this.y > 0) {
Block below = this.down();
int id = below.getId();
if (id == AIR || id == VINE) {
for (BlockFace horizontalFace : BlockFace.Plane.HORIZONTAL) {
if (random.nextBoolean()) {
meta &= ~getMetaFromFace(horizontalFace);
}
}
putVineOnHorizontalFace(below, below.getDamage() | meta, id == AIR ? this : null);
}
}
return Level.BLOCK_UPDATE_RANDOM;
}
}
return 0;
}
private boolean canSpread() {
int blockX = this.getFloorX();
int blockY = this.getFloorY();
int blockZ = this.getFloorZ();
int count = 0;
for (int x = blockX - 4; x <= blockX + 4; x++) {
for (int z = blockZ - 4; z <= blockZ + 4; z++) {
for (int y = blockY - 1; y <= blockY + 1; y++) {
if (this.level.getBlock(x, y, z).getId() == VINE) {
if (++count >= 5) return false;
}
}
}
}
return true;
}
private void putVine(Block block, int meta, Block source) {
if (block.getId() == VINE && block.getDamage() == meta) return;
Block vine = get(VINE, meta);
BlockGrowEvent event;
if (source != null) {
event = new BlockSpreadEvent(block, source, vine);
} else {
event = new BlockGrowEvent(block, vine);
}
this.level.getServer().getPluginManager().callEvent(event);
if (!event.isCancelled()) {
this.level.setBlock(block, vine, true);
}
}
private void putVineOnHorizontalFace(Block block, int meta, Block source) {
if (block.getId() == VINE && block.getDamage() == meta) return;
boolean isOnHorizontalFace = false;
for (BlockFace face : BlockFace.Plane.HORIZONTAL) {
int faceMeta = getMetaFromFace(face);
if ((meta & faceMeta) == faceMeta) {
isOnHorizontalFace = true;
break;
}
}
if (isOnHorizontalFace) {
putVine(block, meta, source);
}
}
private Set getFaces() {
Set faces = EnumSet.noneOf(BlockFace.class);
int meta = this.getDamage();
if ((meta & 1) > 0) {
faces.add(BlockFace.SOUTH);
}
if ((meta & 2) > 0) {
faces.add(BlockFace.WEST);
}
if ((meta & 4) > 0) {
faces.add(BlockFace.NORTH);
}
if ((meta & 8) > 0) {
faces.add(BlockFace.EAST);
}
return faces;
}
public static int getMetaFromFaces(Set faces) {
int meta = 0;
for (BlockFace face : faces) {
meta |= getMetaFromFace(face);
}
return meta;
}
public static int getMetaFromFace(BlockFace face) {
switch (face) {
case SOUTH:
default:
return 0x01;
case WEST:
return 0x02;
case NORTH:
return 0x04;
case EAST:
return 0x08;
}
}
@Override
public int getToolType() {
return ItemTool.TYPE_AXE;
}
@Override
@PowerNukkitOnly
public boolean breaksWhenMoved() {
return true;
}
@Override
@PowerNukkitOnly
public boolean sticksToPiston() {
return false;
}
@Override
public boolean canSilkTouch() {
return true;
}
}
