83 lines
2.5 KiB
Java
83 lines
2.5 KiB
Java
package me.TheBukor.SkStuff.expressions;
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import javax.annotation.Nullable;
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import org.bukkit.event.Event;
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import ch.njol.skript.classes.Changer.ChangeMode;
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import ch.njol.skript.lang.Expression;
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import ch.njol.skript.lang.SkriptParser.ParseResult;
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import ch.njol.skript.lang.util.SimpleExpression;
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import ch.njol.util.Kleenean;
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import ch.njol.util.coll.CollectionUtils;
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import me.TheBukor.SkStuff.SkStuff;
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import me.TheBukor.SkStuff.util.ReflectionUtils;
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public class ExprNBTListIndex extends SimpleExpression<Object> {
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private Expression<Object> nbtList;
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private Expression<Number> index;
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private Class<?> nbtBaseClass = ReflectionUtils.getNMSClass("NBTBase");
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@Override
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public Class<? extends Object> getReturnType() {
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return Object.class;
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}
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@Override
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public boolean isSingle() {
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return true;
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}
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@SuppressWarnings("unchecked")
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@Override
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public boolean init(Expression<?>[] expr, int matchedPattern, Kleenean arg2, ParseResult result) {
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if (matchedPattern == 0) {
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nbtList = (Expression<Object>) expr[0];
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index = (Expression<Number>) expr[1];
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} else {
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index = (Expression<Number>) expr[0];
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nbtList = (Expression<Object>) expr[1];
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}
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return true;
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}
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@Override
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public String toString(@Nullable Event e, boolean debug) {
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return "index " + index.toString(e, debug) + " from nbt list " + nbtList.toString(e, debug);
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}
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@Override
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@Nullable
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protected Object[] get(Event e) {
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int i = index.getSingle(e).intValue();
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Object list = nbtList.getSingle(e);
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return new Object[] { SkStuff.getNMSMethods().getIndex(list, i) };
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}
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@Override
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public void change(Event e, @Nullable Object[] delta, ChangeMode mode) {
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int i = index.getSingle(e).intValue();
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i--;
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Object list = nbtList.getSingle(e);
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if (mode == ChangeMode.SET) {
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if (!(delta[0] instanceof Number || delta[0] instanceof String || nbtBaseClass.isAssignableFrom(delta[0].getClass())))
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//All NBTTags extends NBTBase, so it will check if delta[0] is instance of NBTTagList or NBTTagCompound, because these are the only NBTTagX classes registered in this addon.
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return; //NBT can only store numbers, strings, lists or compounds.
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SkStuff.getNMSMethods().setIndex(list, i, delta[0]);
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} else if (mode == ChangeMode.DELETE) {
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SkStuff.getNMSMethods().removeFromList(list, i);
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}
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}
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@SuppressWarnings("unchecked")
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@Override
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@Nullable
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public Class<?>[] acceptChange(ChangeMode mode) {
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if (mode == ChangeMode.SET || mode == ChangeMode.DELETE) {
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return CollectionUtils.array(Object.class);
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}
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return null;
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}
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}
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