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Rework slow time to use an NBT tag to unblock entity updates when not in a slow time zone, fixes #336 (and related issues with teleporting)

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It also simplifies the code and removes the end slow time packet entirely
This commit is contained in:
Electroblob77
2020-01-28 13:20:32 +00:00
parent e4bf09f15a
commit e54aee332d
6 changed files with 40 additions and 73 deletions
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src/main/java/electroblob/wizardry/potion/PotionSlowTime.java
+38 -16
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@@ -2,8 +2,6 @@ package electroblob.wizardry.potion;
import electroblob.wizardry.Wizardry;
import electroblob.wizardry.item.ItemArtefact;
import electroblob.wizardry.packet.PacketEndSlowTime;
import electroblob.wizardry.packet.WizardryPacketHandler;
import electroblob.wizardry.registry.Spells;
import electroblob.wizardry.registry.WizardryItems;
import electroblob.wizardry.registry.WizardryPotions;
@@ -17,11 +15,15 @@ import net.minecraft.entity.IProjectile;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.projectile.EntityArrow;
import net.minecraft.util.ResourceLocation;
import net.minecraft.world.World;
import net.minecraftforge.event.entity.living.LivingEvent.LivingUpdateEvent;
import net.minecraftforge.event.entity.living.PotionEvent;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
import net.minecraftforge.fml.common.gameevent.PlayerEvent;
import net.minecraftforge.fml.common.gameevent.TickEvent;
import java.util.ArrayList;
import java.util.List;
@Mod.EventBusSubscriber
@@ -29,6 +31,8 @@ public class PotionSlowTime extends PotionMagicEffect implements ISyncedPotion {
// FIXME: Minecarts with entities in them (and, I suspect, any other ridden entities) go crazy when time-slowed
public static final String NBT_KEY = "time_slowed";
public PotionSlowTime(boolean isBadEffect, int liquidColour){
super(isBadEffect, liquidColour, new ResourceLocation(Wizardry.MODID, "textures/gui/potion_icon_slow_time.png"));
this.setPotionName("potion." + Wizardry.MODID + ":slow_time");
@@ -61,6 +65,8 @@ public class PotionSlowTime extends PotionMagicEffect implements ISyncedPotion {
for(Entity entity : targetsInRange){
entity.getEntityData().setBoolean(NBT_KEY, true);
// If time is stopped, block all updates; otherwise block all updates except every [interval] ticks
entity.updateBlocked = stopTime || host.ticksExisted % interval != 0;
@@ -130,6 +136,29 @@ public class PotionSlowTime extends PotionMagicEffect implements ISyncedPotion {
}
/**
* Goes through every entity in the given world and does the following:<br>
* 1. Checks if they have the slow time NBT tag<br>
* 2. If so, scans the area nearby for players or NPCs with the slow time effect<br>
* 3. If none are found, removes the slow time NBT tag and unblocks the entity's updates
*/
public static void cleanUpEntities(World world){
// Had trouble with accessing loadedTileEntityList from tick events causing random CMEs so I'm making a
// copy of this too just in case
List<Entity> loadedEntityList = new ArrayList<>(world.loadedEntityList);
for(Entity entity : loadedEntityList){
if(entity.getEntityData().getBoolean(NBT_KEY)){
// Currently only players can cast slow time, but you could apply the effect to NPCs with commands
List<EntityLivingBase> nearby = WizardryUtilities.getEntitiesWithinRadius(getEffectRadius(), entity.posX, entity.posY, entity.posZ, entity.world, EntityLivingBase.class);
if(nearby.stream().noneMatch(e -> e.isPotionActive(WizardryPotions.slow_time))){
entity.getEntityData().removeTag(NBT_KEY);
entity.updateBlocked = false;
}
}
}
}
@SubscribeEvent
public static void onLivingUpdateEvent(LivingUpdateEvent event){
@@ -150,23 +179,16 @@ public class PotionSlowTime extends PotionMagicEffect implements ISyncedPotion {
}
@SubscribeEvent
public static void onPotionExpiryEvent(PotionEvent.PotionExpiryEvent event){
if(event.getPotionEffect() != null && event.getPotionEffect().getPotion() == WizardryPotions.slow_time){
unblockNearbyEntities(event.getEntityLiving());
if(!event.getEntity().world.isRemote){
WizardryPacketHandler.net.sendToDimension(new PacketEndSlowTime.Message(event.getEntityLiving()), event.getEntity().dimension);
}
}
public static void tick(TickEvent.WorldTickEvent event){
if(!event.world.isRemote && event.phase == TickEvent.Phase.END) cleanUpEntities(event.world);
}
// We still need this as well as tick events because the player hasn't moved anywhere, they just logged out
// In fact, it won't really matter since the tick event fixes it on login anyway, but if the mod is uninstalled or
// something else weird happens...
@SubscribeEvent
public static void onPotionRemoveEvent(PotionEvent.PotionRemoveEvent event){
if(event.getPotionEffect() != null && event.getPotionEffect().getPotion() == WizardryPotions.slow_time){
unblockNearbyEntities(event.getEntityLiving());
if(!event.getEntity().world.isRemote){
WizardryPacketHandler.net.sendToDimension(new PacketEndSlowTime.Message(event.getEntityLiving()), event.getEntity().dimension);
}
}
public static void onPlayerLoggedOutEvent(PlayerEvent.PlayerLoggedOutEvent event){
if(event.player.updateBlocked) event.player.updateBlocked = false;
}
}