minecraft-src/net/minecraft/world/entity/projectile/windcharge/AbstractWindCharge.java

package net.minecraft.world.entity.projectile.windcharge;

import java.util.Optional;
import java.util.function.Function;
import net.minecraft.core.Vec3i;
import net.minecraft.core.particles.ParticleOptions;
import net.minecraft.core.registries.BuiltInRegistries;
import net.minecraft.server.level.ServerLevel;
import net.minecraft.tags.BlockTags;
import net.minecraft.world.damagesource.DamageSource;
import net.minecraft.world.entity.Entity;
import net.minecraft.world.entity.EntityType;
import net.minecraft.world.entity.LivingEntity;
import net.minecraft.world.entity.projectile.AbstractHurtingProjectile;
import net.minecraft.world.entity.projectile.ItemSupplier;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.enchantment.EnchantmentHelper;
import net.minecraft.world.level.ExplosionDamageCalculator;
import net.minecraft.world.level.Level;
import net.minecraft.world.level.SimpleExplosionDamageCalculator;
import net.minecraft.world.phys.AABB;
import net.minecraft.world.phys.BlockHitResult;
import net.minecraft.world.phys.EntityHitResult;
import net.minecraft.world.phys.HitResult;
import net.minecraft.world.phys.Vec3;
import org.jetbrains.annotations.Nullable;

public abstract class AbstractWindCharge extends AbstractHurtingProjectile implements ItemSupplier {
	public static final ExplosionDamageCalculator EXPLOSION_DAMAGE_CALCULATOR = new SimpleExplosionDamageCalculator(
		true, false, Optional.empty(), BuiltInRegistries.BLOCK.get(BlockTags.BLOCKS_WIND_CHARGE_EXPLOSIONS).map(Function.identity())
	);
	public static final double JUMP_SCALE = 0.25;

	public AbstractWindCharge(EntityType<? extends AbstractWindCharge> entityType, Level level) {
		super(entityType, level);
		this.accelerationPower = 0.0;
	}

	public AbstractWindCharge(EntityType<? extends AbstractWindCharge> entityType, Level level, Entity owner, double x, double y, double z) {
		super(entityType, x, y, z, level);
		this.setOwner(owner);
		this.accelerationPower = 0.0;
	}

	AbstractWindCharge(EntityType<? extends AbstractWindCharge> entityType, double x, double y, double z, Vec3 movement, Level level) {
		super(entityType, x, y, z, movement, level);
		this.accelerationPower = 0.0;
	}

	@Override
	protected AABB makeBoundingBox() {
		float f = this.getType().getDimensions().width() / 2.0F;
		float g = this.getType().getDimensions().height();
		float h = 0.15F;
		return new AABB(
			this.position().x - f, this.position().y - 0.15F, this.position().z - f, this.position().x + f, this.position().y - 0.15F + g, this.position().z + f
		);
	}

	@Override
	public boolean canCollideWith(Entity entity) {
		return entity instanceof AbstractWindCharge ? false : super.canCollideWith(entity);
	}

	@Override
	protected boolean canHitEntity(Entity target) {
		if (target instanceof AbstractWindCharge) {
			return false;
		} else {
			return target.getType() == EntityType.END_CRYSTAL ? false : super.canHitEntity(target);
		}
	}

	@Override
	protected void onHitEntity(EntityHitResult result) {
		super.onHitEntity(result);
		if (this.level() instanceof ServerLevel serverLevel) {
			LivingEntity livingEntity2 = this.getOwner() instanceof LivingEntity livingEntity ? livingEntity : null;
			Entity entity = result.getEntity();
			if (livingEntity2 != null) {
				livingEntity2.setLastHurtMob(entity);
			}

			DamageSource damageSource = this.damageSources().windCharge(this, livingEntity2);
			if (entity.hurtServer(serverLevel, damageSource, 1.0F) && entity instanceof LivingEntity livingEntity3) {
				EnchantmentHelper.doPostAttackEffects(serverLevel, livingEntity3, damageSource);
			}

			this.explode(this.position());
		}
	}

	@Override
	public void push(double x, double y, double z) {
	}

	protected abstract void explode(Vec3 pos);

	@Override
	protected void onHitBlock(BlockHitResult result) {
		super.onHitBlock(result);
		if (!this.level().isClientSide) {
			Vec3i vec3i = result.getDirection().getUnitVec3i();
			Vec3 vec3 = Vec3.atLowerCornerOf(vec3i).multiply(0.25, 0.25, 0.25);
			Vec3 vec32 = result.getLocation().add(vec3);
			this.explode(vec32);
			this.discard();
		}
	}

	@Override
	protected void onHit(HitResult result) {
		super.onHit(result);
		if (!this.level().isClientSide) {
			this.discard();
		}
	}

	@Override
	protected boolean shouldBurn() {
		return false;
	}

	@Override
	public ItemStack getItem() {
		return ItemStack.EMPTY;
	}

	@Override
	protected float getInertia() {
		return 1.0F;
	}

	@Override
	protected float getLiquidInertia() {
		return this.getInertia();
	}

	@Nullable
	@Override
	protected ParticleOptions getTrailParticle() {
		return null;
	}

	@Override
	public void tick() {
		if (!this.level().isClientSide && this.getBlockY() > this.level().getMaxY() + 30) {
			this.explode(this.position());
			this.discard();
		} else {
			super.tick();
		}
	}
}