MixinWorld_Activation.java

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package org.spongepowered.server.mixin.entityactivation;

import net.minecraft.entity.Entity;
import net.minecraft.world.World;
import org.spongepowered.asm.lib.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;
import org.spongepowered.common.interfaces.world.IMixinWorld;
import org.spongepowered.common.mixin.plugin.entityactivation.EntityActivationRange;
import org.spongepowered.common.mixin.plugin.entityactivation.interfaces.IModData_Activation;

@Mixin(World.class)
public abstract class MixinWorld_Activation implements IMixinWorld {

    @Inject(method = "updateEntityWithOptionalForce",
            at = @At(value = "FIELD", target = "Lnet/minecraft/entity/Entity;lastTickPosX:D", opcode = Opcodes.PUTFIELD, ordinal = 0),
            cancellable = true)
    private void onUpdateEntityWithOptionalForce(Entity entity, boolean forceUpdate, CallbackInfo ci) {
        if (forceUpdate && !EntityActivationRange.checkIfActive(entity)) { // ignore if forced by forge event update or entity's chunk
            entity.ticksExisted++;
            ((IModData_Activation) entity).inactiveTick();
            ci.cancel();
        }
    }

}