superb-warfare/src/main/java/com/atsuishio/superbwarfare/block/AircraftCatapultBlock.java
2025-05-15 01:42:08 +08:00

127 lines
5.2 KiB
Java

package com.atsuishio.superbwarfare.block;
import net.minecraft.core.BlockPos;
import net.minecraft.core.Direction;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.util.RandomSource;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.item.context.BlockPlaceContext;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.block.Block;
import net.minecraft.world.level.block.HorizontalDirectionalBlock;
import net.minecraft.world.level.block.RenderShape;
import net.minecraft.world.level.block.SoundType;
import net.minecraft.world.level.block.state.BlockBehaviour;
import net.minecraft.world.level.block.state.BlockState;
import net.minecraft.world.level.block.state.StateDefinition;
import net.minecraft.world.level.block.state.properties.BlockStateProperties;
import net.minecraft.world.level.block.state.properties.BooleanProperty;
import net.minecraft.world.level.block.state.properties.DirectionProperty;
import net.minecraft.world.level.block.state.properties.IntegerProperty;
import net.minecraft.world.phys.Vec3;
import org.jetbrains.annotations.NotNull;
import javax.annotation.ParametersAreNonnullByDefault;
public class AircraftCatapultBlock extends Block {
public static final DirectionProperty FACING = HorizontalDirectionalBlock.FACING;
public static final IntegerProperty POWER = BlockStateProperties.POWER;
public static final BooleanProperty UPDATING = BooleanProperty.create("updating");
public AircraftCatapultBlock() {
super(BlockBehaviour.Properties.of().sound(SoundType.METAL).strength(3.0f).requiresCorrectToolForDrops());
this.registerDefaultState(this.stateDefinition.any().setValue(FACING, Direction.NORTH).setValue(POWER, 0).setValue(UPDATING, false));
}
@Override
@ParametersAreNonnullByDefault
public void onPlace(@NotNull BlockState state, Level level, BlockPos pos, @NotNull BlockState pOldState, boolean pMovedByPiston) {
if (level instanceof ServerLevel) {
int receivedPower = level.getBestNeighborSignal(pos);
int maxNeighborPower = this.getFacingPower(level, pos, state);
int newPower = Math.max(receivedPower, maxNeighborPower);
level.setBlock(pos, state.setValue(POWER, newPower), 3);
}
}
@Override
protected void createBlockStateDefinition(StateDefinition.@NotNull Builder<Block, BlockState> builder) {
builder.add(FACING).add(POWER).add(UPDATING);
}
@Override
public @NotNull RenderShape getRenderShape(@NotNull BlockState pState) {
return RenderShape.MODEL;
}
@Override
public BlockState getStateForPlacement(BlockPlaceContext context) {
return this.defaultBlockState().setValue(FACING, context.getHorizontalDirection().getOpposite());
}
@Override
@ParametersAreNonnullByDefault
public void neighborChanged(BlockState pState, Level pLevel, BlockPos pPos, Block pBlock, BlockPos pFromPos, boolean pIsMoving) {
if (!pLevel.isClientSide && !pState.getValue(UPDATING)) {
pLevel.scheduleTick(pPos, this, 1);
}
}
@Override
@ParametersAreNonnullByDefault
public void tick(BlockState state, ServerLevel level, BlockPos pos, RandomSource pRandom) {
this.updateSignal(state, level, pos);
}
private void updateSignal(BlockState state, ServerLevel level, BlockPos pos) {
if (state.getValue(UPDATING)) return; // 防止重入
// 标记正在更新
level.setBlock(pos, state.setValue(UPDATING, true), 2);
// 计算新能量
int receivedPower = level.getBestNeighborSignal(pos);
int maxNeighborPower = this.getFacingPower(level, pos, state);
int newPower = Math.max(receivedPower, maxNeighborPower);
// 仅当能量变化时更新
if (newPower != state.getValue(POWER)) {
var newState = level.getBlockState(pos);
level.setBlock(pos, newState.setValue(POWER, newPower), 3);
}
// 清除更新标记
var newState = level.getBlockState(pos);
level.setBlock(pos, newState.setValue(UPDATING, false), 2);
}
private int getFacingPower(Level level, BlockPos pos, BlockState state) {
int max = 0;
BlockPos relative = pos.relative(state.getValue(FACING));
BlockState blockState = level.getBlockState(relative);
if (blockState.getBlock() instanceof AircraftCatapultBlock) {
max = Math.max(max, blockState.getValue(POWER));
}
return max;
}
@Override
@ParametersAreNonnullByDefault
public void stepOn(Level pLevel, BlockPos pPos, BlockState pState, Entity pEntity) {
super.stepOn(pLevel, pPos, pState, pEntity);
var direction = pState.getValue(AircraftCatapultBlock.FACING);
int power = pState.getValue(AircraftCatapultBlock.POWER);
if (power == 0) return;
float rate = power / 400f;
if (pEntity instanceof LivingEntity) {
rate = power / 50f;
}
if (pEntity.getDeltaMovement().dot(new Vec3(direction.getStepX(), 0, direction.getStepZ())) < 0.2 * power) {
pEntity.addDeltaMovement(new Vec3(direction.getStepX() * rate, 0, direction.getStepZ() * rate));
}
}
}