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 * furnished to do so, subject to the following conditions:
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 * The above copyright notice and this permission notice shall be included in
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package org.spongepowered.server.mixin.exploit;

import net.minecraft.entity.monster.EntityShulker;
import org.objectweb.asm.Opcodes;
import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.injection.At;
import org.spongepowered.asm.mixin.injection.Inject;
import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;

@Mixin(EntityShulker.class)
public abstract class EntityShulkerMixin_ProcessChunkOnMove extends EntityMixin_ProcessChunkOnMove {

    /**
     * @author Aikar - July 29th, 2018
     * @reason Always process chunk registration after moving.
     * This will help guarantee that entities are always in the
     * chunk that they are currently located at.
     *
     * @see <html>https://github.com/PaperMC/Paper/blob/master/Spigot-Server-Patches/0315-Always-process-chunk-registration-after-moving.patch</html>
     *
     * @param ci The callback info
     */
    @Inject(
        method = "onUpdate",
        at = @At(
            value = "FIELD",
            target = "Lnet/minecraft/entity/monster/EntityShulker;posZ:D",
            opcode = Opcodes.PUTFIELD,
            shift = At.Shift.AFTER
        )
    )
    private void processChunkOnMove$onUpdatePositionMarkUpdatedPositionInTrackedWorld(final CallbackInfo ci) {
        if (this.bridge$isWorldTracked() && !this.world.isRemote) {
            this.world.updateEntityWithOptionalForce((EntityShulker) (Object) this, false);
        }
    }
}
