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Rework entity populator.
The new world populator on some engines are multi-threaded, however, minecraft does not allow to remove entities outside main-thread. As entity populator spawned entity and then removed when there were no spot for it, servers crashed. The issue should be fixed now as I add custom entity bounding box calculator before it is spawned to check if there is place for entity. Fixes #86
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BONNe
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4
pom.xml
4
pom.xml
@ -43,9 +43,9 @@
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<properties>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
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<java.version>16</java.version>
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<java.version>17</java.version>
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<!-- More visible way how to change dependency versions -->
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<spigot.version>1.18.1-R0.1-SNAPSHOT</spigot.version>
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<spigot.version>1.19.2-R0.1-SNAPSHOT</spigot.version>
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<bentobox.version>1.19.0</bentobox.version>
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<!-- Revision variable removes warning about dynamic version -->
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<revision>${build.version}-SNAPSHOT</revision>
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@ -11,6 +11,8 @@ import org.bukkit.generator.BlockPopulator;
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import org.bukkit.generator.LimitedRegion;
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import org.bukkit.generator.WorldInfo;
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import org.bukkit.util.BoundingBox;
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import org.eclipse.jdt.annotation.NonNull;
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import world.bentobox.bentobox.util.Pair;
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import world.bentobox.caveblock.CaveBlock;
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import world.bentobox.caveblock.Utils;
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@ -95,7 +97,7 @@ public class EntitiesPopulator extends BlockPopulator {
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* @param limitedRegion Region where population operates.
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*/
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@Override
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public void populate(WorldInfo worldInfo, Random random, int chunkX, int chunkZ, LimitedRegion limitedRegion) {
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public void populate(WorldInfo worldInfo, @NonNull Random random, int chunkX, int chunkZ, @NonNull LimitedRegion limitedRegion) {
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int minHeight = worldInfo.getMinHeight();
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int height = Math.min(worldInfo.getMaxHeight(), worldHeight) - 1;
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@ -168,29 +170,22 @@ public class EntitiesPopulator extends BlockPopulator {
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if (!limitedRegion.isInRegion(location)) return;
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if (!limitedRegion.getType(location).equals(originalMaterial)) return;
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Entity entity = limitedRegion.spawnEntity(location, entityType);
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if (entity instanceof LivingEntity livingEntity) {
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livingEntity.setAI(hasAI);
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livingEntity.setRemoveWhenFarAway(false);
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}
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BoundingBox bb = this.getEntityBoundingBox(entityType, location);
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BoundingBox bb = entity.getBoundingBox();
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for (int x = (int) Math.floor(bb.getMinX()); x < bb.getMaxX(); x++) {
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for (int z = (int) Math.floor(bb.getMinZ()); z < bb.getMaxZ(); z++) {
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int y = (int) Math.floor(bb.getMinY());
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if (!limitedRegion.isInRegion(x, y, z)) {
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entity.remove();
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return;
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}
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for (; y <= bb.getMaxY(); y++) {
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if (addon.getSettings().isDebug()) {
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addon.log("DEBUG: Entity spawn: " + worldInfo.getName() + " " + x + " " + y + " " + z + " " + entity.getType());
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addon.log("DEBUG: Entity spawn: " + worldInfo.getName() + " " + x + " " + y + " " + z + " " + entityType);
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}
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if (!limitedRegion.isInRegion(x, y, z) || !limitedRegion.getType(x, y, z).equals(originalMaterial)) {
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// Cannot place entity
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entity.remove();
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return;
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}
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limitedRegion.setType(x, y, z, WATER_ENTITIES.contains(entityType) ? Material.WATER : Material.AIR);
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@ -201,8 +196,86 @@ public class EntitiesPopulator extends BlockPopulator {
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}
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}
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}
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Entity entity = limitedRegion.spawnEntity(location, entityType);
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if (entity instanceof LivingEntity livingEntity)
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{
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livingEntity.setAI(hasAI);
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livingEntity.setRemoveWhenFarAway(false);
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}
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}
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/**
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* This is manual bounding box calculation base on entity type.
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* @param entityType Entity type which bounding box should be created.
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* @param location Location of the bounding box.
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* @return Approximate bounding box of the entity type.
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*/
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private BoundingBox getEntityBoundingBox(EntityType entityType, Location location)
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{
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BoundingBox boundingBox = new BoundingBox();
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// Set bounding box to 1 for all entities
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boundingBox.expand(1);
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// Shift to correct location.
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boundingBox.shift(location);
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switch (entityType)
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{
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// Turtles base size is 1.1
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case TURTLE -> boundingBox.expand(-0.05, 0, -0.05, 0.05, 0, 0.05);
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// Panda base size is 1.3 and height is 1.25
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case PANDA -> boundingBox.expand(-0.15, 0, -0.15, 0.15, 0.25, 0.15);
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// Sheep height is 1.3
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case SHEEP -> boundingBox.expand(0, 0, 0, 0, 0.3, 0);
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// Cow height is 1.4
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case COW, MUSHROOM_COW -> boundingBox.expand(0, 0, 0, 0, 0.4, 0);
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// Polar Bear base size is 1.3 and height is 1.4
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case POLAR_BEAR -> boundingBox.expand(-0.15, 0, -0.15, 0.15, 0.4, 0.15);
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// Horse base size is 1.3964
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case HORSE, ZOMBIE_HORSE, SKELETON_HORSE -> boundingBox.expand(-0.2, 0, -0.2, 0.2, 0.6, 0.2);
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// Llama height is 1.875
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case LLAMA -> boundingBox.expand(0, 0, 0, 0, 0.875, 0);
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// Ravager base size is 1.95 and height is 2.2
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case RAVAGER -> boundingBox.expand(-0.48, 0, -0.48, 0.48, 1.2, 0.48);
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// Spider base size is 1.4
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case SPIDER -> boundingBox.expand(-0.2, 0, -0.2, 0.2, 0, 0.2);
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// Creeper height 1.7
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case CREEPER -> boundingBox.expand(0, 0, 0, 0, 0.7, 0);
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// Blaze height 1.8
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case BLAZE -> boundingBox.expand(0, 0, 0, 0, 0.8, 0);
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// Zombie, evoker, villager, husk, witch, vindicator, illusioner, drowned, pigman, villager and pillager height is 1.95
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case ZOMBIE, EVOKER, VILLAGER, HUSK, WITCH, VINDICATOR, ILLUSIONER, DROWNED, PIGLIN, PIGLIN_BRUTE, ZOMBIFIED_PIGLIN, ZOMBIE_VILLAGER, PILLAGER, WANDERING_TRADER ->
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boundingBox.expand(0, 0, 0, 0, 0.95, 0);
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// Skeletons height is 1.99
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case SKELETON, STRAY -> boundingBox.expand(0, 0, 0, 0, 0.99, 0);
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// Elder Guardians base height is 2
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case ELDER_GUARDIAN -> boundingBox.expand(-0.5, 0, -0.5, 0.5, 1, 0.5);
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// Slimes are up to 2.04
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case SLIME -> boundingBox.expand(-0.5, 0, -0.5, 0.5, 1, 0.5);
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// Wither skeletons height is 2.4
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case WITHER_SKELETON -> boundingBox.expand(0, 0, 0, 0, 1.4, 0);
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// Wither height is 3.5
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case WITHER -> boundingBox.expand(0, 0, 0, 0, 2.5, 0);
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// Enderman height is 2.9
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case ENDERMAN -> boundingBox.expand(0, 0, 0, 0, 1.9, 0);
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// Ghast base size is 4
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case GHAST -> boundingBox.expand(-2, 0, -2, 2, 3, 2);
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// Iron Golem base size is 1.4 and height is 2.7
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case IRON_GOLEM -> boundingBox.expand(-0.2, 0, -0.2, 0.2, 1.7, 0.2);
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// Snowman height is 1.9
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case SNOWMAN -> boundingBox.expand(0, 0, 0, 0, 0.9, 0);
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// Hoglin base size is 1.4 and height is 1.3965
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case HOGLIN, ZOGLIN -> boundingBox.expand(-0.2, 0, -0.2, 0.2, 0.4, 0.2);
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// Warden height is 2.9
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case WARDEN -> boundingBox.expand(0, 0, 0, 0, 1.9, 0);
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}
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return boundingBox;
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}
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// ---------------------------------------------------------------------
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// Section: Private Classes
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// ---------------------------------------------------------------------
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