80 lines
2.9 KiB
Java
80 lines
2.9 KiB
Java
package net.minecraft.world.entity.npc;
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import java.util.List;
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import net.minecraft.core.BlockPos;
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import net.minecraft.server.level.ServerLevel;
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import net.minecraft.tags.StructureTags;
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import net.minecraft.util.RandomSource;
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import net.minecraft.world.entity.EntitySpawnReason;
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import net.minecraft.world.entity.EntityType;
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import net.minecraft.world.entity.SpawnPlacements;
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import net.minecraft.world.entity.ai.village.poi.PoiManager;
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import net.minecraft.world.entity.ai.village.poi.PoiTypes;
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import net.minecraft.world.entity.animal.Cat;
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import net.minecraft.world.entity.player.Player;
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import net.minecraft.world.level.CustomSpawner;
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import net.minecraft.world.level.GameRules;
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import net.minecraft.world.phys.AABB;
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public class CatSpawner implements CustomSpawner {
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private static final int TICK_DELAY = 1200;
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private int nextTick;
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@Override
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public void tick(ServerLevel level, boolean spawnEnemies, boolean spawnFriendlies) {
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if (spawnFriendlies && level.getGameRules().getBoolean(GameRules.RULE_DOMOBSPAWNING)) {
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this.nextTick--;
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if (this.nextTick <= 0) {
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this.nextTick = 1200;
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Player player = level.getRandomPlayer();
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if (player != null) {
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RandomSource randomSource = level.random;
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int i = (8 + randomSource.nextInt(24)) * (randomSource.nextBoolean() ? -1 : 1);
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int j = (8 + randomSource.nextInt(24)) * (randomSource.nextBoolean() ? -1 : 1);
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BlockPos blockPos = player.blockPosition().offset(i, 0, j);
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int k = 10;
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if (level.hasChunksAt(blockPos.getX() - 10, blockPos.getZ() - 10, blockPos.getX() + 10, blockPos.getZ() + 10)) {
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if (SpawnPlacements.isSpawnPositionOk(EntityType.CAT, level, blockPos)) {
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if (level.isCloseToVillage(blockPos, 2)) {
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this.spawnInVillage(level, blockPos);
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} else if (level.structureManager().getStructureWithPieceAt(blockPos, StructureTags.CATS_SPAWN_IN).isValid()) {
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this.spawnInHut(level, blockPos);
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}
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}
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}
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}
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}
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}
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}
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private void spawnInVillage(ServerLevel level, BlockPos pos) {
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int i = 48;
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if (level.getPoiManager().getCountInRange(holder -> holder.is(PoiTypes.HOME), pos, 48, PoiManager.Occupancy.IS_OCCUPIED) > 4L) {
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List<Cat> list = level.getEntitiesOfClass(Cat.class, new AABB(pos).inflate(48.0, 8.0, 48.0));
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if (list.size() < 5) {
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this.spawnCat(pos, level, false);
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}
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}
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}
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private void spawnInHut(ServerLevel level, BlockPos pos) {
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int i = 16;
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List<Cat> list = level.getEntitiesOfClass(Cat.class, new AABB(pos).inflate(16.0, 8.0, 16.0));
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if (list.isEmpty()) {
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this.spawnCat(pos, level, true);
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}
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}
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private void spawnCat(BlockPos pos, ServerLevel level, boolean persistent) {
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Cat cat = EntityType.CAT.create(level, EntitySpawnReason.NATURAL);
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if (cat != null) {
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cat.finalizeSpawn(level, level.getCurrentDifficultyAt(pos), EntitySpawnReason.NATURAL, null);
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if (persistent) {
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cat.setPersistenceRequired();
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}
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cat.snapTo(pos, 0.0F, 0.0F);
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level.addFreshEntityWithPassengers(cat);
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}
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}
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}
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