package net.minecraft.block; import javax.annotation.Nullable; import net.minecraft.block.material.Material; import net.minecraft.block.properties.IProperty; import net.minecraft.block.properties.PropertyBool; import net.minecraft.block.properties.PropertyEnum; import net.minecraft.block.state.BlockFaceShape; import net.minecraft.block.state.BlockStateContainer; import net.minecraft.block.state.IBlockState; import net.minecraft.creativetab.CreativeTabs; import net.minecraft.entity.EntityLivingBase; import net.minecraft.entity.player.EntityPlayer; import net.minecraft.init.SoundEvents; import net.minecraft.util.EnumFacing; import net.minecraft.util.EnumHand; import net.minecraft.util.IStringSerializable; import net.minecraft.util.Mirror; import net.minecraft.util.Rotation; import net.minecraft.util.SoundCategory; import net.minecraft.util.math.AxisAlignedBB; import net.minecraft.util.math.BlockPos; import net.minecraft.world.IBlockAccess; import net.minecraft.world.World; public class BlockLever extends Block { public static final PropertyEnum FACING = PropertyEnum.create("facing", BlockLever.EnumOrientation.class); public static final PropertyBool POWERED = PropertyBool.create("powered"); protected static final AxisAlignedBB LEVER_NORTH_AABB = new AxisAlignedBB(0.3125D, 0.20000000298023224D, 0.625D, 0.6875D, 0.800000011920929D, 1.0D); protected static final AxisAlignedBB LEVER_SOUTH_AABB = new AxisAlignedBB(0.3125D, 0.20000000298023224D, 0.0D, 0.6875D, 0.800000011920929D, 0.375D); protected static final AxisAlignedBB LEVER_WEST_AABB = new AxisAlignedBB(0.625D, 0.20000000298023224D, 0.3125D, 1.0D, 0.800000011920929D, 0.6875D); protected static final AxisAlignedBB LEVER_EAST_AABB = new AxisAlignedBB(0.0D, 0.20000000298023224D, 0.3125D, 0.375D, 0.800000011920929D, 0.6875D); protected static final AxisAlignedBB LEVER_UP_AABB = new AxisAlignedBB(0.25D, 0.0D, 0.25D, 0.75D, 0.6000000238418579D, 0.75D); protected static final AxisAlignedBB LEVER_DOWN_AABB = new AxisAlignedBB(0.25D, 0.4000000059604645D, 0.25D, 0.75D, 1.0D, 0.75D); protected BlockLever() { super(Material.CIRCUITS); this.setDefaultState(this.blockState.getBaseState().withProperty(FACING, BlockLever.EnumOrientation.NORTH).withProperty(POWERED, Boolean.valueOf(false))); this.setCreativeTab(CreativeTabs.REDSTONE); } @Nullable public AxisAlignedBB getCollisionBoundingBox(IBlockState blockState, IBlockAccess worldIn, BlockPos pos) { return NULL_AABB; } /** * Used to determine ambient occlusion and culling when rebuilding chunks for render */ public boolean isOpaqueCube(IBlockState state) { return false; } public boolean isFullCube(IBlockState state) { return false; } /** * Check whether this Block can be placed at pos, while aiming at the specified side of an adjacent block */ public boolean canPlaceBlockOnSide(World worldIn, BlockPos pos, EnumFacing side) { return canAttachTo(worldIn, pos, side); } /** * Checks if this block can be placed exactly at the given position. */ public boolean canPlaceBlockAt(World worldIn, BlockPos pos) { for (EnumFacing enumfacing : EnumFacing.values()) { if (canAttachTo(worldIn, pos, enumfacing)) { return true; } } return false; } protected static boolean canAttachTo(World worldIn, BlockPos p_181090_1_, EnumFacing p_181090_2_) { return BlockButton.canPlaceBlock(worldIn, p_181090_1_, p_181090_2_); } /** * Called by ItemBlocks just before a block is actually set in the world, to allow for adjustments to the * IBlockstate */ public IBlockState getStateForPlacement(World worldIn, BlockPos pos, EnumFacing facing, float hitX, float hitY, float hitZ, int meta, EntityLivingBase placer) { IBlockState iblockstate = this.getDefaultState().withProperty(POWERED, Boolean.valueOf(false)); if (canAttachTo(worldIn, pos, facing)) { return iblockstate.withProperty(FACING, BlockLever.EnumOrientation.forFacings(facing, placer.getHorizontalFacing())); } else { for (EnumFacing enumfacing : EnumFacing.Plane.HORIZONTAL) { if (enumfacing != facing && canAttachTo(worldIn, pos, enumfacing)) { return iblockstate.withProperty(FACING, BlockLever.EnumOrientation.forFacings(enumfacing, placer.getHorizontalFacing())); } } if (worldIn.getBlockState(pos.down()).isTopSolid()) { return iblockstate.withProperty(FACING, BlockLever.EnumOrientation.forFacings(EnumFacing.UP, placer.getHorizontalFacing())); } else { return iblockstate; } } } /** * Called when a neighboring block was changed and marks that this state should perform any checks during a neighbor * change. Cases may include when redstone power is updated, cactus blocks popping off due to a neighboring solid * block, etc. */ public void neighborChanged(IBlockState state, World worldIn, BlockPos pos, Block blockIn, BlockPos fromPos) { if (this.checkCanSurvive(worldIn, pos, state) && !canAttachTo(worldIn, pos, ((BlockLever.EnumOrientation)state.getValue(FACING)).getFacing())) { this.dropBlockAsItem(worldIn, pos, state, 0); worldIn.setBlockToAir(pos); } } private boolean checkCanSurvive(World worldIn, BlockPos pos, IBlockState state) { if (this.canPlaceBlockAt(worldIn, pos)) { return true; } else { this.dropBlockAsItem(worldIn, pos, state, 0); worldIn.setBlockToAir(pos); return false; } } public AxisAlignedBB getBoundingBox(IBlockState state, IBlockAccess source, BlockPos pos) { switch ((BlockLever.EnumOrientation)state.getValue(FACING)) { case EAST: default: return LEVER_EAST_AABB; case WEST: return LEVER_WEST_AABB; case SOUTH: return LEVER_SOUTH_AABB; case NORTH: return LEVER_NORTH_AABB; case UP_Z: case UP_X: return LEVER_UP_AABB; case DOWN_X: case DOWN_Z: return LEVER_DOWN_AABB; } } /** * Called when the block is right clicked by a player. */ public boolean onBlockActivated(World worldIn, BlockPos pos, IBlockState state, EntityPlayer playerIn, EnumHand hand, EnumFacing facing, float hitX, float hitY, float hitZ) { if (worldIn.isRemote) { return true; } else { state = state.cycleProperty(POWERED); worldIn.setBlockState(pos, state, 3); float f = ((Boolean)state.getValue(POWERED)).booleanValue() ? 0.6F : 0.5F; worldIn.playSound((EntityPlayer)null, pos, SoundEvents.BLOCK_LEVER_CLICK, SoundCategory.BLOCKS, 0.3F, f); worldIn.notifyNeighborsOfStateChange(pos, this, false); EnumFacing enumfacing = ((BlockLever.EnumOrientation)state.getValue(FACING)).getFacing(); worldIn.notifyNeighborsOfStateChange(pos.offset(enumfacing.getOpposite()), this, false); return true; } } /** * Called serverside after this block is replaced with another in Chunk, but before the Tile Entity is updated */ public void breakBlock(World worldIn, BlockPos pos, IBlockState state) { if (((Boolean)state.getValue(POWERED)).booleanValue()) { worldIn.notifyNeighborsOfStateChange(pos, this, false); EnumFacing enumfacing = ((BlockLever.EnumOrientation)state.getValue(FACING)).getFacing(); worldIn.notifyNeighborsOfStateChange(pos.offset(enumfacing.getOpposite()), this, false); } super.breakBlock(worldIn, pos, state); } public int getWeakPower(IBlockState blockState, IBlockAccess blockAccess, BlockPos pos, EnumFacing side) { return ((Boolean)blockState.getValue(POWERED)).booleanValue() ? 15 : 0; } public int getStrongPower(IBlockState blockState, IBlockAccess blockAccess, BlockPos pos, EnumFacing side) { if (!((Boolean)blockState.getValue(POWERED)).booleanValue()) { return 0; } else { return ((BlockLever.EnumOrientation)blockState.getValue(FACING)).getFacing() == side ? 15 : 0; } } /** * Can this block provide power. Only wire currently seems to have this change based on its state. */ public boolean canProvidePower(IBlockState state) { return true; } /** * Convert the given metadata into a BlockState for this Block */ public IBlockState getStateFromMeta(int meta) { return this.getDefaultState().withProperty(FACING, BlockLever.EnumOrientation.byMetadata(meta & 7)).withProperty(POWERED, Boolean.valueOf((meta & 8) > 0)); } /** * Convert the BlockState into the correct metadata value */ public int getMetaFromState(IBlockState state) { int i = 0; i = i | ((BlockLever.EnumOrientation)state.getValue(FACING)).getMetadata(); if (((Boolean)state.getValue(POWERED)).booleanValue()) { i |= 8; } return i; } /** * Returns the blockstate with the given rotation from the passed blockstate. If inapplicable, returns the passed * blockstate. */ public IBlockState withRotation(IBlockState state, Rotation rot) { switch (rot) { case CLOCKWISE_180: switch ((BlockLever.EnumOrientation)state.getValue(FACING)) { case EAST: return state.withProperty(FACING, BlockLever.EnumOrientation.WEST); case WEST: return state.withProperty(FACING, BlockLever.EnumOrientation.EAST); case SOUTH: return state.withProperty(FACING, BlockLever.EnumOrientation.NORTH); case NORTH: return state.withProperty(FACING, BlockLever.EnumOrientation.SOUTH); default: return state; } case COUNTERCLOCKWISE_90: switch ((BlockLever.EnumOrientation)state.getValue(FACING)) { case EAST: return state.withProperty(FACING, BlockLever.EnumOrientation.NORTH); case WEST: return state.withProperty(FACING, BlockLever.EnumOrientation.SOUTH); case SOUTH: return state.withProperty(FACING, BlockLever.EnumOrientation.EAST); case NORTH: return state.withProperty(FACING, BlockLever.EnumOrientation.WEST); case UP_Z: return state.withProperty(FACING, BlockLever.EnumOrientation.UP_X); case UP_X: return state.withProperty(FACING, BlockLever.EnumOrientation.UP_Z); case DOWN_X: return state.withProperty(FACING, BlockLever.EnumOrientation.DOWN_Z); case DOWN_Z: return state.withProperty(FACING, BlockLever.EnumOrientation.DOWN_X); } case CLOCKWISE_90: switch ((BlockLever.EnumOrientation)state.getValue(FACING)) { case EAST: return state.withProperty(FACING, BlockLever.EnumOrientation.SOUTH); case WEST: return state.withProperty(FACING, BlockLever.EnumOrientation.NORTH); case SOUTH: return state.withProperty(FACING, BlockLever.EnumOrientation.WEST); case NORTH: return state.withProperty(FACING, BlockLever.EnumOrientation.EAST); case UP_Z: return state.withProperty(FACING, BlockLever.EnumOrientation.UP_X); case UP_X: return state.withProperty(FACING, BlockLever.EnumOrientation.UP_Z); case DOWN_X: return state.withProperty(FACING, BlockLever.EnumOrientation.DOWN_Z); case DOWN_Z: return state.withProperty(FACING, BlockLever.EnumOrientation.DOWN_X); } default: return state; } } /** * Returns the blockstate with the given mirror of the passed blockstate. If inapplicable, returns the passed * blockstate. */ public IBlockState withMirror(IBlockState state, Mirror mirrorIn) { return state.withRotation(mirrorIn.toRotation(((BlockLever.EnumOrientation)state.getValue(FACING)).getFacing())); } protected BlockStateContainer createBlockState() { return new BlockStateContainer(this, new IProperty[] {FACING, POWERED}); } /** * Get the geometry of the queried face at the given position and state. This is used to decide whether things like * buttons are allowed to be placed on the face, or how glass panes connect to the face, among other things. *

* Common values are {@code SOLID}, which is the default, and {@code UNDEFINED}, which represents something that * does not fit the other descriptions and will generally cause other things not to connect to the face. * * @return an approximation of the form of the given face */ public BlockFaceShape getBlockFaceShape(IBlockAccess worldIn, IBlockState state, BlockPos pos, EnumFacing face) { return BlockFaceShape.UNDEFINED; } public static enum EnumOrientation implements IStringSerializable { DOWN_X(0, "down_x", EnumFacing.DOWN), EAST(1, "east", EnumFacing.EAST), WEST(2, "west", EnumFacing.WEST), SOUTH(3, "south", EnumFacing.SOUTH), NORTH(4, "north", EnumFacing.NORTH), UP_Z(5, "up_z", EnumFacing.UP), UP_X(6, "up_x", EnumFacing.UP), DOWN_Z(7, "down_z", EnumFacing.DOWN); private static final BlockLever.EnumOrientation[] META_LOOKUP = new BlockLever.EnumOrientation[values().length]; private final int meta; private final String name; private final EnumFacing facing; private EnumOrientation(int meta, String name, EnumFacing facing) { this.meta = meta; this.name = name; this.facing = facing; } public int getMetadata() { return this.meta; } public EnumFacing getFacing() { return this.facing; } public String toString() { return this.name; } public static BlockLever.EnumOrientation byMetadata(int meta) { if (meta < 0 || meta >= META_LOOKUP.length) { meta = 0; } return META_LOOKUP[meta]; } public static BlockLever.EnumOrientation forFacings(EnumFacing clickedSide, EnumFacing entityFacing) { switch (clickedSide) { case DOWN: switch (entityFacing.getAxis()) { case X: return DOWN_X; case Z: return DOWN_Z; default: throw new IllegalArgumentException("Invalid entityFacing " + entityFacing + " for facing " + clickedSide); } case UP: switch (entityFacing.getAxis()) { case X: return UP_X; case Z: return UP_Z; default: throw new IllegalArgumentException("Invalid entityFacing " + entityFacing + " for facing " + clickedSide); } case NORTH: return NORTH; case SOUTH: return SOUTH; case WEST: return WEST; case EAST: return EAST; default: throw new IllegalArgumentException("Invalid facing: " + clickedSide); } } public String getName() { return this.name; } static { for (BlockLever.EnumOrientation blocklever$enumorientation : values()) { META_LOOKUP[blocklever$enumorientation.getMetadata()] = blocklever$enumorientation; } } } }