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DropCommand.java
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DropCommand.java
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package com.denizenscript.denizen.scripts.commands.world;
import com.denizenscript.denizen.utilities.Utilities;
import com.denizenscript.denizen.utilities.debugging.Debug;
import com.denizenscript.denizencore.objects.*;
import com.denizenscript.denizen.objects.EntityTag;
import com.denizenscript.denizen.objects.ItemTag;
import com.denizenscript.denizen.objects.LocationTag;
import com.denizenscript.denizencore.exceptions.InvalidArgumentsException;
import com.denizenscript.denizencore.objects.core.DurationTag;
import com.denizenscript.denizencore.objects.core.ElementTag;
import com.denizenscript.denizencore.objects.core.ListTag;
import com.denizenscript.denizencore.scripts.ScriptEntry;
import com.denizenscript.denizencore.scripts.commands.AbstractCommand;
import org.bukkit.Material;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.ExperienceOrb;
import org.bukkit.entity.Item;
import java.util.ArrayList;
import java.util.List;
public class DropCommand extends AbstractCommand {
// <--[command]
// @Name Drop
// @Syntax drop [<entity_type>/xp/<item>|...] (<location>) (quantity:<#>) (speed:<#.#>) (delay:<duration>)
// @Required 1
// @Short Drops an item, entity, or experience orb on a location.
// @Group world
//
// @Description
// To drop an item, just specify a valid item object. To drop
// an entity, specify a generic entity object. Drop can also reward players
// with experience orbs by using the 'xp' argument.
//
// For all three usages, you can optionally specify an integer with 'quantity:'
// prefix to drop multiple items/entities/xp.
// For items, you can add 'speed:' to modify the launch velocity.
// You can also add 'delay:' to set the pickup delay of the item.
//
// @Tags
// <EntityTag.item>
// <entry[saveName].dropped_entities> returns a list of entities that were dropped.
// <entry[saveName].dropped_entity> returns a single entity that was dropped (if only one).
//
// @Usage
// Use to drop some loot around the player.
// - drop gold_nugget <cuboid[cu@<player.location.add[-2,-2,-2]>|<player.location.add[2,2,2]>].spawnable_blocks.random>
//
// @Usage
// Use to reward a player with 500 xp.
// - drop xp quantity:500 <player.location>
//
// @Usage
// Use to drop a nasty surprise (exploding TNT).
// - drop e@primed_tnt <player.location>
//
// @Usage
// Use to drop an item with a pickup delay at the player's location.
// - drop diamond_sword <player.location> delay:20s
// -->
enum Action {DROP_ITEM, DROP_EXP, DROP_ENTITY}
@Override
public void parseArgs(ScriptEntry scriptEntry) throws InvalidArgumentsException {
for (Argument arg : scriptEntry.getProcessedArgs()) {
if (!scriptEntry.hasObject("action")
&& !arg.matchesPrefix("qty")
&& arg.matchesArgumentList(ItemTag.class)) {
// Item arg
scriptEntry.addObject("action", new ElementTag(Action.DROP_ITEM.toString()).setPrefix("action"));
scriptEntry.addObject("item", arg.asType(ListTag.class).filter(ItemTag.class, scriptEntry));
}
else if (!scriptEntry.hasObject("action")
&& arg.matches("experience", "exp", "xp"))
// Experience arg
{
scriptEntry.addObject("action", new ElementTag(Action.DROP_EXP.toString()).setPrefix("action"));
}
else if (!scriptEntry.hasObject("action")
&& arg.matchesArgumentType(EntityTag.class)) {
// Entity arg
scriptEntry.addObject("action", new ElementTag(Action.DROP_ENTITY.toString()).setPrefix("action"));
scriptEntry.addObject("entity", arg.asType(EntityTag.class).setPrefix("entity"));
}
else if (!scriptEntry.hasObject("location")
&& arg.matchesArgumentType(LocationTag.class))
// Location arg
{
scriptEntry.addObject("location", arg.asType(LocationTag.class).setPrefix("location"));
}
else if (!scriptEntry.hasObject("speed")
&& arg.matchesPrefix("speed")
&& arg.matchesPrimitive(ArgumentHelper.PrimitiveType.Double)) {
scriptEntry.addObject("speed", arg.asElement());
}
else if (!scriptEntry.hasObject("qty")
&& arg.matchesPrimitive(ArgumentHelper.PrimitiveType.Integer))
// Quantity arg
{
scriptEntry.addObject("qty", arg.asElement().setPrefix("qty"));
}
else if (!scriptEntry.hasObject("delay") && arg.matchesArgumentType(DurationTag.class)
&& arg.matchesPrefix("delay", "d")) {
scriptEntry.addObject("delay", arg.asType(DurationTag.class));
}
else {
arg.reportUnhandled();
}
}
// Make sure all required arguments are met
if (!scriptEntry.hasObject("action")) {
throw new InvalidArgumentsException("Must specify something to drop!");
}
if (!scriptEntry.hasObject("location")) {
if (Utilities.getEntryPlayer(scriptEntry) != null && Utilities.getEntryPlayer(scriptEntry).isOnline()) {
scriptEntry.addObject("location", Utilities.getEntryPlayer(scriptEntry).getLocation().setPrefix("location"));
Debug.echoDebug(scriptEntry, "Did not specify a location, assuming Player's location.");
}
else {
throw new InvalidArgumentsException("Must specify a location!");
}
}
if (!scriptEntry.hasObject("qty")) {
scriptEntry.addObject("qty", ElementTag.valueOf("1").setPrefix("qty"));
}
// Okay!
}
@Override
public void execute(ScriptEntry scriptEntry) {
// Get objects
LocationTag location = (LocationTag) scriptEntry.getObject("location");
ElementTag qty = scriptEntry.getElement("qty");
ElementTag action = scriptEntry.getElement("action");
ElementTag speed = scriptEntry.getElement("speed");
List<ItemTag> items = (List<ItemTag>) scriptEntry.getObject("item");
EntityTag entity = (EntityTag) scriptEntry.getObject("entity");
DurationTag delay = (DurationTag) scriptEntry.getObject("delay");
// Report to dB
if (scriptEntry.dbCallShouldDebug()) {
Debug.report(scriptEntry, getName(),
action.debug() + location.debug() + qty.debug()
+ (items != null ? ArgumentHelper.debugList("items", items) : "")
+ (entity != null ? entity.debug() : "")
+ (speed != null ? speed.debug() : "")
+ (delay != null ? delay.debug() : ""));
}
ListTag entityList = new ListTag();
// Do the drop
switch (Action.valueOf(action.asString())) {
case DROP_EXP:
EntityTag orb = new EntityTag(location.getWorld().spawnEntity(location, EntityType.EXPERIENCE_ORB));
((ExperienceOrb) orb.getBukkitEntity()).setExperience(qty.asInt());
entityList.add(orb.toString());
break;
case DROP_ITEM:
for (ItemTag item : items) {
if (item.getMaterial().getMaterial() == Material.AIR) {
continue;
}
if (qty.asInt() > 1 && item.isUnique()) {
Debug.echoDebug(scriptEntry, "Cannot drop multiples of this item because it is Unique!");
}
for (int x = 0; x < qty.asInt(); x++) {
EntityTag e = new EntityTag(location.getWorld().dropItem(location, item.getItemStack()));
if (e.isValid()) {
e.setVelocity(e.getVelocity().multiply(speed != null ? speed.asDouble() : 1d));
if (delay != null) {
((Item) e.getBukkitEntity()).setPickupDelay(delay.getTicksAsInt());
}
}
entityList.add(e.toString());
}
}
break;
case DROP_ENTITY:
if (qty.asInt() > 1 && entity.isUnique()) {
Debug.echoDebug(scriptEntry, "Cannot drop multiples of this entity because it is Unique!");
entity.spawnAt(location);
entityList.add(entity.toString());
break;
}
for (int x = 0; x < qty.asInt(); x++) {
ArrayList<Mechanism> mechanisms = new ArrayList<>();
for (Mechanism mechanism : entity.getWaitingMechanisms()) {
mechanisms.add(new Mechanism(new ElementTag(mechanism.getName()), mechanism.getValue()));
}
EntityTag ent = new EntityTag(entity.getEntityType(), mechanisms);
ent.spawnAt(location);
entityList.add(ent.toString());
}
break;
}
// Add entities to context so that the specific entities dropped can be fetched.
scriptEntry.addObject("dropped_entities", entityList);
scriptEntry.addObject("dropped_entity", entityList.get(0));
}
}
}