95 lines
4.2 KiB
Java
95 lines
4.2 KiB
Java
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package net.minecraft.world.entity.ai.behavior;
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import com.google.common.collect.ImmutableMap;
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import net.minecraft.core.component.DataComponents;
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import net.minecraft.server.level.ServerLevel;
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import net.minecraft.world.entity.LivingEntity;
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import net.minecraft.world.entity.Mob;
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import net.minecraft.world.entity.ai.memory.MemoryModuleType;
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import net.minecraft.world.entity.ai.memory.MemoryStatus;
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import net.minecraft.world.entity.monster.CrossbowAttackMob;
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import net.minecraft.world.entity.projectile.ProjectileUtil;
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import net.minecraft.world.item.CrossbowItem;
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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.item.component.ChargedProjectiles;
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public class CrossbowAttack<E extends Mob & CrossbowAttackMob, T extends LivingEntity> extends Behavior<E> {
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private static final int TIMEOUT = 1200;
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private int attackDelay;
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private CrossbowAttack.CrossbowState crossbowState = CrossbowAttack.CrossbowState.UNCHARGED;
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public CrossbowAttack() {
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super(ImmutableMap.of(MemoryModuleType.LOOK_TARGET, MemoryStatus.REGISTERED, MemoryModuleType.ATTACK_TARGET, MemoryStatus.VALUE_PRESENT), 1200);
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}
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protected boolean checkExtraStartConditions(ServerLevel p_22778_, E p_22779_) {
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LivingEntity livingentity = getAttackTarget(p_22779_);
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return p_22779_.isHolding(Items.CROSSBOW) && BehaviorUtils.canSee(p_22779_, livingentity) && BehaviorUtils.isWithinAttackRange(p_22779_, livingentity, 0);
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}
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protected boolean canStillUse(ServerLevel p_22781_, E p_22782_, long p_22783_) {
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return p_22782_.getBrain().hasMemoryValue(MemoryModuleType.ATTACK_TARGET) && this.checkExtraStartConditions(p_22781_, p_22782_);
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}
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protected void tick(ServerLevel p_22794_, E p_22795_, long p_22796_) {
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LivingEntity livingentity = getAttackTarget(p_22795_);
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this.lookAtTarget(p_22795_, livingentity);
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this.crossbowAttack(p_22795_, livingentity);
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}
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protected void stop(ServerLevel p_22805_, E p_22806_, long p_22807_) {
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if (p_22806_.isUsingItem()) {
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p_22806_.stopUsingItem();
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}
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if (p_22806_.isHolding(Items.CROSSBOW)) {
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p_22806_.setChargingCrossbow(false);
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p_22806_.getUseItem().set(DataComponents.CHARGED_PROJECTILES, ChargedProjectiles.EMPTY);
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}
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}
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private void crossbowAttack(E p_22787_, LivingEntity p_22788_) {
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if (this.crossbowState == CrossbowAttack.CrossbowState.UNCHARGED) {
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p_22787_.startUsingItem(ProjectileUtil.getWeaponHoldingHand(p_22787_, Items.CROSSBOW));
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this.crossbowState = CrossbowAttack.CrossbowState.CHARGING;
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p_22787_.setChargingCrossbow(true);
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} else if (this.crossbowState == CrossbowAttack.CrossbowState.CHARGING) {
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if (!p_22787_.isUsingItem()) {
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this.crossbowState = CrossbowAttack.CrossbowState.UNCHARGED;
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}
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int i = p_22787_.getTicksUsingItem();
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ItemStack itemstack = p_22787_.getUseItem();
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if (i >= CrossbowItem.getChargeDuration(itemstack, p_22787_)) {
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p_22787_.releaseUsingItem();
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this.crossbowState = CrossbowAttack.CrossbowState.CHARGED;
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this.attackDelay = 20 + p_22787_.getRandom().nextInt(20);
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p_22787_.setChargingCrossbow(false);
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}
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} else if (this.crossbowState == CrossbowAttack.CrossbowState.CHARGED) {
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this.attackDelay--;
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if (this.attackDelay == 0) {
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this.crossbowState = CrossbowAttack.CrossbowState.READY_TO_ATTACK;
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}
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} else if (this.crossbowState == CrossbowAttack.CrossbowState.READY_TO_ATTACK) {
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p_22787_.performRangedAttack(p_22788_, 1.0F);
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this.crossbowState = CrossbowAttack.CrossbowState.UNCHARGED;
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}
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}
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private void lookAtTarget(Mob p_22798_, LivingEntity p_22799_) {
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p_22798_.getBrain().setMemory(MemoryModuleType.LOOK_TARGET, new EntityTracker(p_22799_, true));
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}
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private static LivingEntity getAttackTarget(LivingEntity p_22785_) {
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return p_22785_.getBrain().getMemory(MemoryModuleType.ATTACK_TARGET).get();
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}
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static enum CrossbowState {
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UNCHARGED,
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CHARGING,
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CHARGED,
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READY_TO_ATTACK;
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}
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}
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