126 lines
3.9 KiB
Java
126 lines
3.9 KiB
Java
package net.minecraft.world.entity.ai.village;
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import com.mojang.logging.LogUtils;
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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.BiomeTags;
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import net.minecraft.util.Mth;
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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.monster.Monster;
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import net.minecraft.world.entity.monster.Zombie;
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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.levelgen.Heightmap;
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import net.minecraft.world.phys.Vec3;
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import org.jetbrains.annotations.Nullable;
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import org.slf4j.Logger;
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public class VillageSiege implements CustomSpawner {
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private static final Logger LOGGER = LogUtils.getLogger();
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private boolean hasSetupSiege;
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private VillageSiege.State siegeState = VillageSiege.State.SIEGE_DONE;
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private int zombiesToSpawn;
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private int nextSpawnTime;
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private int spawnX;
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private int spawnY;
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private int spawnZ;
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@Override
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public void tick(ServerLevel level, boolean spawnEnemies, boolean spawnFriendlies) {
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if (!level.isBrightOutside() && spawnEnemies) {
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float f = level.getTimeOfDay(0.0F);
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if (f == 0.5) {
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this.siegeState = level.random.nextInt(10) == 0 ? VillageSiege.State.SIEGE_TONIGHT : VillageSiege.State.SIEGE_DONE;
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}
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if (this.siegeState != VillageSiege.State.SIEGE_DONE) {
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if (!this.hasSetupSiege) {
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if (!this.tryToSetupSiege(level)) {
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return;
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}
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this.hasSetupSiege = true;
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}
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if (this.nextSpawnTime > 0) {
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this.nextSpawnTime--;
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} else {
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this.nextSpawnTime = 2;
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if (this.zombiesToSpawn > 0) {
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this.trySpawn(level);
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this.zombiesToSpawn--;
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} else {
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this.siegeState = VillageSiege.State.SIEGE_DONE;
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}
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}
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}
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} else {
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this.siegeState = VillageSiege.State.SIEGE_DONE;
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this.hasSetupSiege = false;
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}
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}
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private boolean tryToSetupSiege(ServerLevel level) {
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for (Player player : level.players()) {
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if (!player.isSpectator()) {
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BlockPos blockPos = player.blockPosition();
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if (level.isVillage(blockPos) && !level.getBiome(blockPos).is(BiomeTags.WITHOUT_ZOMBIE_SIEGES)) {
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for (int i = 0; i < 10; i++) {
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float f = level.random.nextFloat() * (float) (Math.PI * 2);
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this.spawnX = blockPos.getX() + Mth.floor(Mth.cos(f) * 32.0F);
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this.spawnY = blockPos.getY();
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this.spawnZ = blockPos.getZ() + Mth.floor(Mth.sin(f) * 32.0F);
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if (this.findRandomSpawnPos(level, new BlockPos(this.spawnX, this.spawnY, this.spawnZ)) != null) {
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this.nextSpawnTime = 0;
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this.zombiesToSpawn = 20;
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break;
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}
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}
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return true;
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}
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}
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}
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return false;
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}
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private void trySpawn(ServerLevel level) {
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Vec3 vec3 = this.findRandomSpawnPos(level, new BlockPos(this.spawnX, this.spawnY, this.spawnZ));
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if (vec3 != null) {
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Zombie zombie;
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try {
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zombie = new Zombie(level);
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zombie.finalizeSpawn(level, level.getCurrentDifficultyAt(zombie.blockPosition()), EntitySpawnReason.EVENT, null);
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} catch (Exception var5) {
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LOGGER.warn("Failed to create zombie for village siege at {}", vec3, var5);
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return;
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}
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zombie.snapTo(vec3.x, vec3.y, vec3.z, level.random.nextFloat() * 360.0F, 0.0F);
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level.addFreshEntityWithPassengers(zombie);
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}
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}
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@Nullable
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private Vec3 findRandomSpawnPos(ServerLevel level, BlockPos pos) {
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for (int i = 0; i < 10; i++) {
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int j = pos.getX() + level.random.nextInt(16) - 8;
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int k = pos.getZ() + level.random.nextInt(16) - 8;
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int l = level.getHeight(Heightmap.Types.WORLD_SURFACE, j, k);
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BlockPos blockPos = new BlockPos(j, l, k);
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if (level.isVillage(blockPos) && Monster.checkMonsterSpawnRules(EntityType.ZOMBIE, level, EntitySpawnReason.EVENT, blockPos, level.random)) {
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return Vec3.atBottomCenterOf(blockPos);
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}
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}
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return null;
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}
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static enum State {
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SIEGE_CAN_ACTIVATE,
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SIEGE_TONIGHT,
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SIEGE_DONE;
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}
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}
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