235 lines
7.5 KiB
Java
235 lines
7.5 KiB
Java
package net.minecraft.world.entity.vehicle;
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import net.minecraft.core.BlockPos;
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import net.minecraft.core.particles.ParticleTypes;
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import net.minecraft.server.level.ServerLevel;
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import net.minecraft.sounds.SoundEvents;
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import net.minecraft.sounds.SoundSource;
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import net.minecraft.tags.BlockTags;
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import net.minecraft.tags.DamageTypeTags;
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import net.minecraft.util.Mth;
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import net.minecraft.world.damagesource.DamageSource;
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import net.minecraft.world.entity.EntityType;
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import net.minecraft.world.entity.projectile.AbstractArrow;
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import net.minecraft.world.entity.projectile.Projectile;
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import net.minecraft.world.item.Item;
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import net.minecraft.world.item.ItemStack;
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import net.minecraft.world.item.Items;
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import net.minecraft.world.level.BlockGetter;
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import net.minecraft.world.level.Explosion;
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import net.minecraft.world.level.GameRules;
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import net.minecraft.world.level.Level;
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import net.minecraft.world.level.block.Blocks;
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import net.minecraft.world.level.block.state.BlockState;
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import net.minecraft.world.level.material.FluidState;
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import net.minecraft.world.level.storage.ValueInput;
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import net.minecraft.world.level.storage.ValueOutput;
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import org.jetbrains.annotations.Nullable;
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public class MinecartTNT extends AbstractMinecart {
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private static final byte EVENT_PRIME = 10;
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private static final String TAG_EXPLOSION_POWER = "explosion_power";
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private static final String TAG_EXPLOSION_SPEED_FACTOR = "explosion_speed_factor";
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private static final String TAG_FUSE = "fuse";
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private static final float DEFAULT_EXPLOSION_POWER_BASE = 4.0F;
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private static final float DEFAULT_EXPLOSION_SPEED_FACTOR = 1.0F;
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private static final int NO_FUSE = -1;
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@Nullable
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private DamageSource ignitionSource;
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private int fuse = -1;
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private float explosionPowerBase = 4.0F;
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private float explosionSpeedFactor = 1.0F;
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public MinecartTNT(EntityType<? extends MinecartTNT> entityType, Level level) {
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super(entityType, level);
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}
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@Override
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public BlockState getDefaultDisplayBlockState() {
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return Blocks.TNT.defaultBlockState();
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}
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@Override
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public void tick() {
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super.tick();
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if (this.fuse > 0) {
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this.fuse--;
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this.level().addParticle(ParticleTypes.SMOKE, this.getX(), this.getY() + 0.5, this.getZ(), 0.0, 0.0, 0.0);
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} else if (this.fuse == 0) {
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this.explode(this.ignitionSource, this.getDeltaMovement().horizontalDistanceSqr());
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}
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if (this.horizontalCollision) {
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double d = this.getDeltaMovement().horizontalDistanceSqr();
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if (d >= 0.01F) {
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this.explode(d);
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}
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}
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}
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@Override
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public boolean hurtServer(ServerLevel level, DamageSource damageSource, float amount) {
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if (damageSource.getDirectEntity() instanceof AbstractArrow abstractArrow && abstractArrow.isOnFire()) {
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DamageSource damageSource2 = this.damageSources().explosion(this, damageSource.getEntity());
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this.explode(damageSource2, abstractArrow.getDeltaMovement().lengthSqr());
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}
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return super.hurtServer(level, damageSource, amount);
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}
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@Override
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public void destroy(ServerLevel level, DamageSource damageSource) {
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double d = this.getDeltaMovement().horizontalDistanceSqr();
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if (!damageSourceIgnitesTnt(damageSource) && !(d >= 0.01F)) {
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this.destroy(level, this.getDropItem());
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} else {
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if (this.fuse < 0) {
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this.primeFuse(damageSource);
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this.fuse = this.random.nextInt(20) + this.random.nextInt(20);
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}
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}
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}
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@Override
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protected Item getDropItem() {
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return Items.TNT_MINECART;
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}
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@Override
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public ItemStack getPickResult() {
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return new ItemStack(Items.TNT_MINECART);
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}
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/**
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* Makes the minecart explode.
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*/
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protected void explode(double radiusModifier) {
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this.explode(null, radiusModifier);
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}
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protected void explode(@Nullable DamageSource damageSource, double radiusModifier) {
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if (this.level() instanceof ServerLevel serverLevel) {
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if (serverLevel.getGameRules().getBoolean(GameRules.RULE_TNT_EXPLODES)) {
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double d = Math.min(Math.sqrt(radiusModifier), 5.0);
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serverLevel.explode(
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this,
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damageSource,
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null,
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this.getX(),
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this.getY(),
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this.getZ(),
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(float)(this.explosionPowerBase + this.explosionSpeedFactor * this.random.nextDouble() * 1.5 * d),
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false,
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Level.ExplosionInteraction.TNT
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);
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this.discard();
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} else if (this.isPrimed()) {
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this.discard();
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}
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}
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}
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@Override
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public boolean causeFallDamage(double fallDistance, float damageMultiplier, DamageSource damageSource) {
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if (fallDistance >= 3.0) {
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double d = fallDistance / 10.0;
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this.explode(d * d);
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}
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return super.causeFallDamage(fallDistance, damageMultiplier, damageSource);
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}
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@Override
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public void activateMinecart(int x, int y, int z, boolean powered) {
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if (powered && this.fuse < 0) {
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this.primeFuse(null);
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}
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}
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@Override
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public void handleEntityEvent(byte id) {
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if (id == 10) {
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this.primeFuse(null);
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} else {
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super.handleEntityEvent(id);
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}
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}
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public void primeFuse(@Nullable DamageSource damageSource) {
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if (!(this.level() instanceof ServerLevel serverLevel && !serverLevel.getGameRules().getBoolean(GameRules.RULE_TNT_EXPLODES))) {
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this.fuse = 80;
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if (!this.level().isClientSide) {
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if (damageSource != null && this.ignitionSource == null) {
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this.ignitionSource = this.damageSources().explosion(this, damageSource.getEntity());
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}
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this.level().broadcastEntityEvent(this, (byte)10);
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if (!this.isSilent()) {
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this.level().playSound(null, this.getX(), this.getY(), this.getZ(), SoundEvents.TNT_PRIMED, SoundSource.BLOCKS, 1.0F, 1.0F);
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}
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}
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}
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}
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/**
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* Gets the remaining fuse time in ticks.
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*/
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public int getFuse() {
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return this.fuse;
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}
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/**
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* Returns {@code true} if the TNT minecart is ignited.
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*/
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public boolean isPrimed() {
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return this.fuse > -1;
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}
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@Override
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public float getBlockExplosionResistance(
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Explosion explosion, BlockGetter level, BlockPos pos, BlockState blockState, FluidState fluidState, float explosionPower
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) {
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return !this.isPrimed() || !blockState.is(BlockTags.RAILS) && !level.getBlockState(pos.above()).is(BlockTags.RAILS)
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? super.getBlockExplosionResistance(explosion, level, pos, blockState, fluidState, explosionPower)
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: 0.0F;
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}
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@Override
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public boolean shouldBlockExplode(Explosion explosion, BlockGetter level, BlockPos pos, BlockState blockState, float explosionPower) {
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return !this.isPrimed() || !blockState.is(BlockTags.RAILS) && !level.getBlockState(pos.above()).is(BlockTags.RAILS)
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? super.shouldBlockExplode(explosion, level, pos, blockState, explosionPower)
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: false;
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}
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@Override
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protected void readAdditionalSaveData(ValueInput input) {
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super.readAdditionalSaveData(input);
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this.fuse = input.getIntOr("fuse", -1);
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this.explosionPowerBase = Mth.clamp(input.getFloatOr("explosion_power", 4.0F), 0.0F, 128.0F);
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this.explosionSpeedFactor = Mth.clamp(input.getFloatOr("explosion_speed_factor", 1.0F), 0.0F, 128.0F);
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}
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@Override
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protected void addAdditionalSaveData(ValueOutput output) {
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super.addAdditionalSaveData(output);
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output.putInt("fuse", this.fuse);
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if (this.explosionPowerBase != 4.0F) {
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output.putFloat("explosion_power", this.explosionPowerBase);
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}
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if (this.explosionSpeedFactor != 1.0F) {
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output.putFloat("explosion_speed_factor", this.explosionSpeedFactor);
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}
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}
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@Override
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boolean shouldSourceDestroy(DamageSource source) {
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return damageSourceIgnitesTnt(source);
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}
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private static boolean damageSourceIgnitesTnt(DamageSource source) {
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return source.getDirectEntity() instanceof Projectile projectile
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? projectile.isOnFire()
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: source.is(DamageTypeTags.IS_FIRE) || source.is(DamageTypeTags.IS_EXPLOSION);
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}
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}
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