71 lines
2.5 KiB
Java
71 lines
2.5 KiB
Java
package net.citizensnpcs.nms.v1_17_R1.entity;
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import java.lang.reflect.Constructor;
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import java.util.Map;
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import org.bukkit.Location;
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import org.bukkit.block.BlockFace;
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import org.bukkit.craftbukkit.v1_17_R1.CraftWorld;
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import org.bukkit.entity.Entity;
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import com.google.common.collect.Maps;
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import net.citizensnpcs.api.npc.NPC;
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import net.citizensnpcs.nms.v1_17_R1.util.NMSImpl;
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import net.citizensnpcs.npc.AbstractEntityController;
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import net.minecraft.world.entity.EntityType;
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import net.minecraft.world.level.Level;
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public abstract class MobEntityController extends AbstractEntityController {
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private final Class<?> clazz;
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private final Constructor<?> constructor;
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protected MobEntityController(Class<?> clazz) {
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super(clazz);
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this.constructor = getConstructor(clazz);
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this.clazz = clazz;
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}
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@Override
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protected Entity createEntity(Location at, NPC npc) {
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EntityType<?> type = NMSImpl.getEntityType(clazz);
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net.minecraft.world.entity.Entity entity = createEntityFromClass(type, ((CraftWorld) at.getWorld()).getHandle(),
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npc);
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entity.absMoveTo(at.getX(), at.getY(), at.getZ(), at.getYaw(), at.getPitch());
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// entity.onGround isn't updated right away - we approximate here so
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// that things like pathfinding still work *immediately* after spawn.
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org.bukkit.Material beneath = at.getBlock().getRelative(BlockFace.DOWN).getType();
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if (beneath.isSolid()) {
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entity.setOnGround(true);
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}
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try {
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NMSImpl.UUID_FIELD.invoke(entity, npc.getUniqueId());
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} catch (Throwable e) {
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e.printStackTrace();
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}
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return entity.getBukkitEntity();
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}
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private net.minecraft.world.entity.Entity createEntityFromClass(Object... args) {
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try {
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return (net.minecraft.world.entity.Entity) constructor.newInstance(args);
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} catch (Exception ex) {
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ex.printStackTrace();
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return null;
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}
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}
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private static Constructor<?> getConstructor(Class<?> clazz) {
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Constructor<?> constructor = CONSTRUCTOR_CACHE.get(clazz);
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if (constructor != null)
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return constructor;
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try {
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return clazz.getConstructor(EntityType.class, Level.class, NPC.class);
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} catch (Exception ex) {
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throw new IllegalStateException("unable to find an entity constructor");
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}
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}
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private static final Map<Class<?>, Constructor<?>> CONSTRUCTOR_CACHE = Maps.newHashMap();
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} |