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General Block Protocol #241

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General Block Protocol #241

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47d74ca
General Block Protocol
aria1th Dec 31, 2021
cc3d289
WallMountedBlock - lever fix
aria1th Dec 31, 2021
a5a8f1e
Avoid NPE, add Pillarblock support
aria1th Jan 1, 2022
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223 changes: 118 additions & 105 deletions src/main/java/carpetextra/utils/BlockPlacer.java
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Original file line number Diff line number Diff line change
@@ -1,118 +1,131 @@
package carpetextra.utils;

import net.minecraft.block.Block;
import net.minecraft.block.BlockState;
import net.minecraft.block.ComparatorBlock;
import net.minecraft.block.DispenserBlock;
import net.minecraft.block.FacingBlock;
import net.minecraft.block.GlazedTerracottaBlock;
import net.minecraft.block.HorizontalFacingBlock;
import net.minecraft.block.ObserverBlock;
import net.minecraft.block.PistonBlock;
import net.minecraft.block.RepeaterBlock;
import net.minecraft.block.StairsBlock;
import net.minecraft.block.TrapdoorBlock;
import net.minecraft.block.enums.BlockHalf;
import net.minecraft.block.enums.ComparatorMode;
import net.minecraft.block.*;
import net.minecraft.block.enums.*;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.item.ItemPlacementContext;
import net.minecraft.state.property.DirectionProperty;
import net.minecraft.state.property.Property;
import net.minecraft.util.math.BlockPos;
import net.minecraft.util.math.Direction;
import net.minecraft.util.math.MathHelper;
import net.minecraft.util.math.Vec3d;
import net.minecraft.world.World;

public class BlockPlacer
{
public static BlockState alternativeBlockPlacement(Block block, ItemPlacementContext context)//World worldIn, BlockPos pos, EnumFacing facing, float hitX, float hitY, float hitZ, int meta, EntityLivingBase placer)
{
//actual alternative block placement code
public class BlockPlacer {
private static DirectionProperty getFirstDirectionProperty(BlockState state) {
for (Property<?> prop : state.getProperties()) {
if (prop instanceof DirectionProperty) {
return (DirectionProperty) prop;
}
}
return null;
}
private static boolean isBlockAttachableChest(Block originBlock, Direction facing, BlockPos checkPos, World world) {
BlockState checkState = world.getBlockState(checkPos);
if (checkState == null) {
return false;
}
if (originBlock.equals(checkState.getBlock())) {
return checkState.get(ChestBlock.FACING).equals(facing) && checkState.get(ChestBlock.CHEST_TYPE) == ChestType.SINGLE;
}
return false;
}
private static boolean isBlockOffsetNotReplaceableBlock(BlockPos checkPos, Direction facing, World world){
return !world.getBlockState(checkPos.offset(facing)).getMaterial().isReplaceable();
}

Direction facing;
Vec3d vec3d = context.getHitPos();
BlockPos pos = context.getBlockPos();
double hitX = vec3d.x - pos.getX();
if (hitX<2) // vanilla
return null;
int code = (int)(hitX-2)/2;
//
// now it would be great if hitX was adjusted in context to original range from 0.0 to 1.0
// since its actually using it. Its private - maybe with Reflections?
//
PlayerEntity placer = context.getPlayer();
World world = context.getWorld();
public static BlockState alternativeBlockPlacement(Block block, ItemPlacementContext context)//World worldIn, BlockPos pos, EnumFacing facing, float hitX, float hitY, float hitZ, int meta, EntityLivingBase placer)
{
//actual alternative block placement code

if (block instanceof GlazedTerracottaBlock)
{
facing = Direction.byId(code);
if(facing == Direction.UP || facing == Direction.DOWN)
{
facing = placer.getHorizontalFacing().getOpposite();
}
return block.getDefaultState().with(HorizontalFacingBlock.FACING, facing);
}
else if (block instanceof ObserverBlock)
{
return block.getDefaultState()
.with(FacingBlock.FACING, Direction.byId(code))
.with(ObserverBlock.POWERED, true);
}
else if (block instanceof RepeaterBlock)
{
facing = Direction.byId(code % 16);
if(facing == Direction.UP || facing == Direction.DOWN)
{
facing = placer.getHorizontalFacing().getOpposite();
}
return block.getDefaultState()
.with(HorizontalFacingBlock.FACING, facing)
.with(RepeaterBlock.DELAY, MathHelper.clamp(code / 16, 1, 4))
.with(RepeaterBlock.LOCKED, Boolean.FALSE);
}
else if (block instanceof TrapdoorBlock)
{
facing = Direction.byId(code % 16);
if(facing == Direction.UP || facing == Direction.DOWN)
{
facing = placer.getHorizontalFacing().getOpposite();
}
return block.getDefaultState()
.with(TrapdoorBlock.FACING, facing)
.with(TrapdoorBlock.OPEN, Boolean.FALSE)
.with(TrapdoorBlock.HALF, (code >= 16) ? BlockHalf.TOP : BlockHalf.BOTTOM)
.with(TrapdoorBlock.OPEN, world.isReceivingRedstonePower(pos));
}
else if (block instanceof ComparatorBlock)
{
facing = Direction.byId(code % 16);
if((facing == Direction.UP) || (facing == Direction.DOWN))
{
facing = placer.getHorizontalFacing().getOpposite();
}
ComparatorMode m = (hitX >= 16)?ComparatorMode.SUBTRACT: ComparatorMode.COMPARE;
return block.getDefaultState()
.with(HorizontalFacingBlock.FACING, facing)
.with(ComparatorBlock.POWERED, Boolean.FALSE)
.with(ComparatorBlock.MODE, m);
}
else if (block instanceof DispenserBlock)
{
return block.getDefaultState()
.with(DispenserBlock.FACING, Direction.byId(code))
.with(DispenserBlock.TRIGGERED, Boolean.FALSE);
}
else if (block instanceof PistonBlock)
{
return block.getDefaultState()
.with(FacingBlock.FACING, Direction.byId(code))
.with(PistonBlock.EXTENDED, Boolean.FALSE);
}
else if (block instanceof StairsBlock)
{
return block.getPlacementState(context)//worldIn, pos, facing, hitX, hitY, hitZ, meta, placer)
.with(StairsBlock.FACING, Direction.byId(code % 16))
.with(StairsBlock.HALF, ( hitX >= 16)?BlockHalf.TOP : BlockHalf.BOTTOM);
}
return null;
}
Direction facing;
Vec3d vec3d = context.getHitPos();
BlockPos pos = context.getBlockPos();
double hitX = vec3d.x - pos.getX();
BlockState state = block.getDefaultState();
DirectionProperty directionProperty = getFirstDirectionProperty(state);
if (hitX < 2 || !(block instanceof AbstractRailBlock || block instanceof PillarBlock) && directionProperty == null) // vanilla
return null;
int code = (int) (hitX - 2) / 2;

//
// now it would be great if hitX was adjusted in context to original range from 0.0 to 1.0
// since its actually using it. Its private - maybe with Reflections?
//
PlayerEntity placer = context.getPlayer();
World world = context.getWorld();
if (block instanceof AbstractRailBlock){
RailShape shapeEnumFound = RailShape.values()[code%RailShape.values().length]; //avoid NPE
if (block instanceof RailBlock)
{
return state.with(RailBlock.SHAPE,shapeEnumFound);
}
else if (block instanceof DetectorRailBlock)
{
return state.with(DetectorRailBlock.SHAPE,shapeEnumFound);
}
else
{
return state.with(PoweredRailBlock.SHAPE,shapeEnumFound);
}
} else if (block instanceof PillarBlock) {
return state.with(PillarBlock.AXIS, Direction.Axis.values()[code % Direction.Axis.VALUES.length]);
}
else
{
int FacingId = code % 16;
facing = Direction.byId(FacingId);
if (!directionProperty.getValues().contains(facing)) {
if (placer == null){
facing = Direction.NORTH;
} else {
facing = placer.getHorizontalFacing().getOpposite();
}
}
state = state.with(directionProperty, facing);
}
//check blocks with additional states first
if (block instanceof RepeaterBlock) {
state = state
.with(RepeaterBlock.DELAY, MathHelper.clamp(code / 16, 1, 4))
.with(RepeaterBlock.LOCKED, Boolean.FALSE);
} else if (block instanceof TrapdoorBlock) {
state = state
.with(TrapdoorBlock.OPEN, Boolean.FALSE)
.with(TrapdoorBlock.HALF, (code >= 16) ? BlockHalf.TOP : BlockHalf.BOTTOM)
.with(TrapdoorBlock.OPEN, world.isReceivingRedstonePower(pos));
} else if (block instanceof ComparatorBlock) {
ComparatorMode m = (hitX >= 16) ? ComparatorMode.SUBTRACT : ComparatorMode.COMPARE;
state = state
.with(ComparatorBlock.POWERED, Boolean.FALSE)
.with(ComparatorBlock.MODE, m);
} else if (block instanceof StairsBlock) {
state = block.getPlacementState(context); //worldIn, pos, facing, hitX, hitY, hitZ, meta, placer)
if(state == null) {return null;}
return state.with(StairsBlock.FACING, facing)
.with(StairsBlock.HALF, (hitX >= 16) ? BlockHalf.TOP : BlockHalf.BOTTOM);
} else if (block instanceof WallMountedBlock) {
return state.with(WallMountedBlock.FACE, (code >= 32) ? WallMountLocation.CEILING: (code >= 16) ? WallMountLocation.WALL : WallMountLocation.FLOOR).
with(WallMountedBlock.FACING, facing);
} else if (block instanceof WallSkullBlock){
return state.with(WallMountedBlock.FACING, facing);
}
else if (block instanceof ChestBlock)
{
if (isBlockAttachableChest(block, facing, pos.offset(facing.rotateYClockwise()), world)) {
return state.with(ChestBlock.CHEST_TYPE, ChestType.LEFT);
}
else if (isBlockAttachableChest(block, facing, pos.offset(facing.rotateYCounterclockwise()), world)) {
return state.with(ChestBlock.CHEST_TYPE, ChestType.RIGHT);
}
return state.with(ChestBlock.CHEST_TYPE, ChestType.SINGLE);
} else if (block instanceof BedBlock && isBlockOffsetNotReplaceableBlock(pos, facing, world)) {
return null;
} else if (block instanceof DoorBlock && isBlockOffsetNotReplaceableBlock(pos, Direction.UP, world)) {
return null;
}
return state;
}
}