cn.nukkit.block.BlockItemFrame Maven / Gradle / Ivy
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A Minecraft Bedrock Edition server software implementation made in Java from scratch which supports all new features.
package cn.nukkit.block;
import cn.nukkit.Player;
import cn.nukkit.api.PowerNukkitDifference;
import cn.nukkit.api.PowerNukkitOnly;
import cn.nukkit.api.Since;
import cn.nukkit.blockentity.BlockEntity;
import cn.nukkit.blockentity.BlockEntityItemFrame;
import cn.nukkit.item.Item;
import cn.nukkit.item.ItemItemFrame;
import cn.nukkit.level.Level;
import cn.nukkit.level.Sound;
import cn.nukkit.math.AxisAlignedBB;
import cn.nukkit.math.BlockFace;
import cn.nukkit.math.SimpleAxisAlignedBB;
import cn.nukkit.nbt.tag.CompoundTag;
import cn.nukkit.nbt.tag.Tag;
import cn.nukkit.network.protocol.LevelEventPacket;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
import java.util.Random;
import static cn.nukkit.math.BlockFace.AxisDirection.POSITIVE;
/**
* @author Pub4Game
* @since 03.07.2016
*/
@PowerNukkitDifference(since = "1.4.0.0-PN", info = "Implements BlockEntityHolder only in PowerNukkit")
public class BlockItemFrame extends BlockTransparentMeta implements BlockEntityHolder {
private final static int[] FACING = new int[]{4, 5, 3, 2, 1, 0}; // TODO when 1.13 support arrives, add UP/DOWN facings
private final static int FACING_BITMASK = 0b0111;
private final static int MAP_BIT = 0b1000;
public BlockItemFrame() {
this(0);
}
public BlockItemFrame(int meta) {
super(meta);
}
@Override
public int getId() {
return ITEM_FRAME_BLOCK;
}
@PowerNukkitOnly
@Since("1.4.0.0-PN")
@Nonnull
@Override
public String getBlockEntityType() {
return BlockEntity.ITEM_FRAME;
}
@Since("1.4.0.0-PN")
@PowerNukkitOnly
@Nonnull
@Override
public Class getBlockEntityClass() {
return BlockEntityItemFrame.class;
}
@Override
public String getName() {
return "Item Frame";
}
@PowerNukkitDifference(info = "Allow to stay in walls", since = "1.3.0.0-PN")
@Override
public int onUpdate(int type) {
if (type == Level.BLOCK_UPDATE_NORMAL) {
Block support = this.getSideAtLayer(0, getFacing());
if (!support.isSolid() && support.getId() != COBBLE_WALL) {
this.level.useBreakOn(this);
return type;
}
}
return 0;
}
@Override
public boolean canBeActivated() {
return true;
}
@PowerNukkitOnly
@Override
public int getWaterloggingLevel() {
return 1;
}
@Override
public boolean onActivate(@Nonnull Item item, Player player) {
BlockEntityItemFrame itemFrame = getOrCreateBlockEntity();
if (itemFrame.getItem().isNull()) {
Item itemOnFrame = item.clone();
if (player != null && player.isSurvival()) {
itemOnFrame.setCount(itemOnFrame.getCount() - 1);
player.getInventory().setItemInHand(itemOnFrame);
}
itemOnFrame.setCount(1);
itemFrame.setItem(itemOnFrame);
this.getLevel().addLevelEvent(this, LevelEventPacket.EVENT_SOUND_ITEM_FRAME_ITEM_ADDED);
} else {
itemFrame.setItemRotation((itemFrame.getItemRotation() + 1) % 8);
this.getLevel().addLevelEvent(this, LevelEventPacket.EVENT_SOUND_ITEM_FRAME_ITEM_ROTATED);
}
return true;
}
@PowerNukkitDifference(info = "Allow to place on walls", since = "1.3.0.0-PN")
@Override
public boolean place(@Nonnull Item item, @Nonnull Block block, @Nonnull Block target, @Nonnull BlockFace face, double fx, double fy, double fz, @Nullable Player player) {
if (face.getHorizontalIndex() == -1
|| (target.getId() != COBBLE_WALL && (!target.isSolid() || (block.isSolid() && !block.canBeReplaced())))) {
return false;
}
this.setDamage(FACING[face.getIndex()]);
CompoundTag nbt = new CompoundTag()
.putByte("ItemRotation", 0)
.putFloat("ItemDropChance", 1.0f);
if (item.hasCustomBlockData()) {
for (Tag aTag : item.getCustomBlockData().getAllTags()) {
nbt.put(aTag.getName(), aTag);
}
}
BlockEntityItemFrame frame = BlockEntityHolder.setBlockAndCreateEntity(this, true, true, nbt);
if (frame == null) {
return false;
}
this.getLevel().addSound(this, Sound.BLOCK_ITEMFRAME_PLACE);
return true;
}
@Override
public boolean onBreak(Item item) {
this.getLevel().setBlock(this, layer, Block.get(BlockID.AIR), true, true);
this.getLevel().addLevelEvent(this, LevelEventPacket.EVENT_SOUND_ITEM_FRAME_REMOVED);
return true;
}
@Override
public Item[] getDrops(Item item) {
BlockEntityItemFrame itemFrame = getBlockEntity();
int chance = new Random().nextInt(100) + 1;
if (itemFrame != null && chance <= (itemFrame.getItemDropChance() * 100)) {
return new Item[]{
toItem(), itemFrame.getItem().clone()
};
} else {
return new Item[]{
toItem()
};
}
}
@Override
public Item toItem() {
return new ItemItemFrame();
}
@Override
public boolean canPassThrough() {
return true;
}
@Override
public boolean hasComparatorInputOverride() {
return true;
}
@Override
public int getComparatorInputOverride() {
BlockEntityItemFrame blockEntity = getBlockEntity();
if (blockEntity != null) {
return blockEntity.getAnalogOutput();
}
return super.getComparatorInputOverride();
}
public BlockFace getFacing() {
switch (this.getDamage() & FACING_BITMASK) {
case 0:
return BlockFace.WEST;
case 1:
return BlockFace.EAST;
case 2:
return BlockFace.NORTH;
case 3:
return BlockFace.SOUTH;
}
return null;
}
@Override
public double getHardness() {
return 0.25;
}
@Override
public boolean breaksWhenMoved() {
return true;
}
@Override
public boolean sticksToPiston() {
return false;
}
@PowerNukkitOnly("Will calculate the correct AABB")
@Since("1.3.0.0-PN")
@Override
protected AxisAlignedBB recalculateBoundingBox() {
double[][] aabb = {
{2.0/16, 14.0/16},
{2.0/16, 14.0/16},
{2.0/16, 14.0/16}
};
BlockFace facing = getFacing();
if (facing.getAxisDirection() == POSITIVE) {
int axis = facing.getAxis().ordinal();
aabb[axis][0] = 0;
aabb[axis][1] = 1.0/16;
}
return new SimpleAxisAlignedBB(
aabb[0][0] + x, aabb[1][0] + y, aabb[2][0] + z,
aabb[0][1] + x, aabb[1][1] + y, aabb[2][1] + z
);
}
}