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cn.nukkit.item.ItemCrossbow Maven / Gradle / Ivy
package cn.nukkit.item;
import cn.nukkit.Player;
import cn.nukkit.Server;
import cn.nukkit.api.Since;
import cn.nukkit.entity.item.EntityCrossbowFirework;
import cn.nukkit.entity.projectile.EntityArrow;
import cn.nukkit.entity.projectile.EntityProjectile;
import cn.nukkit.event.entity.EntityShootCrossbowEvent;
import cn.nukkit.event.entity.ProjectileLaunchEvent;
import cn.nukkit.inventory.Inventory;
import cn.nukkit.item.enchantment.Enchantment;
import cn.nukkit.level.Sound;
import cn.nukkit.math.Vector3;
import cn.nukkit.nbt.tag.*;
import cn.nukkit.utils.Utils;
@Since("1.6.0.0-PNX")
public class ItemCrossbow extends ItemTool {
private int loadTick;
@Since("1.4.0.0-PN")
public ItemCrossbow() {
this(0, 1);
}
@Since("1.4.0.0-PN")
public ItemCrossbow(Integer meta) {
this(meta, 1);
}
@Since("1.4.0.0-PN")
public ItemCrossbow(Integer meta, int count) {
super(CROSSBOW, meta, count, "Crossbow");
}
@Override
@Since("1.6.0.0-PN")
public int getMaxDurability() {
return ItemTool.DURABILITY_CROSSBOW;
}
@Since("1.6.0.0-PNX")
public boolean onUse(Player player, int ticksUsed) {
int needTickUsed = 20;
Enchantment enchantment = this.getEnchantment(Enchantment.ID_CROSSBOW_QUICK_CHARGE);
if (enchantment != null) {
needTickUsed -= enchantment.getLevel() * 5; //0.25s
}
if (ticksUsed >= needTickUsed) {
Item itemArrow;
Inventory inventory = player.getOffhandInventory();
if (!this.canLoad(itemArrow = inventory.getItem(0))) {
for (Item item : (inventory = player.getInventory()).getContents().values()) {
if (this.canLoad(item)) {
itemArrow = item;
break;
}
}
if (!this.canLoad(itemArrow)) {
if (player.isCreative()) {
this.loadArrow(player, Item.get(262));
}
return true;
}
}
if (!this.isLoaded()) {
itemArrow = itemArrow.clone();
itemArrow.setCount(1);
if (!player.isCreative()) {
if (!this.isUnbreakable()) {
Enchantment durability = this.getEnchantment(Enchantment.ID_DURABILITY);
if (durability == null || durability.getLevel() <= 0 || 100 / (durability.getLevel() + 1) > Utils.random.nextInt(100)) {
this.setDamage(this.getDamage() + 2);
if (this.getDamage() >= 385) {
--this.count;
}
player.getInventory().setItemInHand(this);
}
}
inventory.removeItem(itemArrow);
}
this.loadArrow(player, itemArrow);
}
}
return true;
}
@Since("1.6.0.0-PNX")
protected boolean canLoad(Item item) {
return switch (item.getId()) {
case Item.ARROW, Item.FIREWORKS -> true;
default -> false;
};
}
@Since("1.6.0.0-PNX")
public boolean onClickAir(Player player, Vector3 directionVector) {
return !this.launchArrow(player);
}
@Since("1.6.0.0-PNX")
public boolean onRelease(Player player, int ticksUsed) {
return true;
}
@Since("1.6.0.0-PNX")
public void loadArrow(Player player, Item arrow) {
if (arrow != null) {
CompoundTag tag = this.getNamedTag() == null ? new CompoundTag() : this.getNamedTag();
tag.putBoolean("Charged", true).putCompound("chargedItem", (new CompoundTag("chargedItem")).putByte("Count", arrow.getCount()).putShort("Damage", arrow.getDamage()).putString("Name", "minecraft:" + arrow.getDisplayName()));
this.setCompoundTag(tag);
this.loadTick = Server.getInstance().getTick();
player.getInventory().setItemInHand(this);
player.getLevel().addSound(player, Sound.CROSSBOW_LOADING_END);
}
}
@Since("1.6.0.0-PNX")
public void useArrow(Player player) {
this.setCompoundTag(this.getNamedTag().putBoolean("Charged", false).remove("chargedItem"));
player.getInventory().setItemInHand(this);
}
@Since("1.6.0.0-PNX")
public boolean isLoaded() {
Tag itemInfo = this.getNamedTagEntry("chargedItem");
if (itemInfo == null) {
return false;
} else {
CompoundTag tag = (CompoundTag)itemInfo;
return tag.getByte("Count") > 0 && tag.getString("Name") != null;
}
}
@Since("1.6.0.0-PNX")
public boolean launchArrow(Player player) {
if (this.isLoaded() && Server.getInstance().getTick() - this.loadTick > 20) {
double mX;
double mY;
double mZ;
CompoundTag nbt = (new CompoundTag()).putList((new ListTag<>("Pos")).add(new DoubleTag("", player.x)).add(new DoubleTag("", player.y + (double)player.getEyeHeight())).add(new DoubleTag("", player.z))).putList((new ListTag("Motion")).add(new DoubleTag("", mX = -Math.sin(player.yaw / 180.0D * 3.141592653589793D) * Math.cos(player.pitch / 180.0D * 3.141592653589793D))).add(new DoubleTag("", mY = -Math.sin(player.pitch / 180.0D * 3.141592653589793D))).add(new DoubleTag("", mZ = Math.cos(player.yaw / 180.0D * 3.141592653589793D) * Math.cos(player.pitch / 180.0D * 3.141592653589793D)))).putList((new ListTag("Rotation")).add(new FloatTag("", (float)(player.yaw > 180.0D ? 360 : 0) - (float)player.yaw)).add(new FloatTag("", (float)(-player.pitch))));
Item item = Item.fromString(this.getNamedTag().getCompound("chargedItem").getString("Name"));
if (item.getId() == Item.FIREWORKS) {
EntityCrossbowFirework entity = new EntityCrossbowFirework(player.chunk, nbt);
entity.setMotion(new Vector3(mX, mY, mZ));
entity.spawnToAll();
player.getLevel().addSound(player, Sound.CROSSBOW_SHOOT);
this.useArrow(player);
} else {
EntityArrow entity = new EntityArrow(player.chunk, nbt, player, false);
EntityShootCrossbowEvent entityShootBowEvent = new EntityShootCrossbowEvent(player, this, entity);
Server.getInstance().getPluginManager().callEvent(entityShootBowEvent);
if (entityShootBowEvent.isCancelled()) {
entityShootBowEvent.getProjectile(0).close();
player.getInventory().sendContents(player);
} else {
entityShootBowEvent.getProjectile(0).setMotion(entityShootBowEvent.getProjectile(0).getMotion().multiply(3.5D));
if (entityShootBowEvent.getProjectile(0) != null) {
EntityProjectile proj = entityShootBowEvent.getProjectile(0);
ProjectileLaunchEvent projectile = new ProjectileLaunchEvent(proj, player);
Server.getInstance().getPluginManager().callEvent(projectile);
if (projectile.isCancelled()) {
proj.close();
} else {
proj.spawnToAll();
player.getLevel().addSound(player, Sound.CROSSBOW_SHOOT);
this.useArrow(player);
}
}
}
}
return true;
} else {
return false;
}
}
@Override
public int getEnchantAbility() {
return 1;
}
}
