package com.resonance.altar; import com.resonance.blockentity.ResonatorBlockEntity; import com.resonance.frequency.Frequency; import com.resonance.registry.ModSoundEvents; import net.minecraft.block.Block; import net.minecraft.block.BlockState; import net.minecraft.block.Blocks; import net.minecraft.entity.player.PlayerEntity; import net.minecraft.item.ItemStack; import net.minecraft.server.MinecraftServer; import net.minecraft.server.world.ServerWorld; import net.minecraft.sound.SoundCategory; import net.minecraft.util.math.BlockPos; import net.minecraft.util.math.Box; import net.minecraft.util.math.Vec3i; import net.minecraft.world.World; import java.util.*; public final class AltarManager { // Per-world resonator registry: worldKey → pos → frequency private static final Map, Map> RESONATORS = new HashMap<>(); // Active altars private static final Set ACTIVE_ALTARS = new HashSet<>(); // Pattern definitions private static final List PATTERNS = new ArrayList<>(); static { Map repairOffsets = Map.of( new Vec3i(-2, 0, 0), Frequency.EARTH, new Vec3i(2, 0, 0), Frequency.EARTH, new Vec3i(0, 0, 2), Frequency.EARTH ); PATTERNS.add(new AltarPattern("repair", Blocks.IRON_BLOCK, repairOffsets, AltarEffectType.REPAIR, 2, true)); Map glowOffsets = Map.of( new Vec3i(-2, 0, 0), Frequency.AIR, new Vec3i(2, 0, 0), Frequency.AIR, new Vec3i(0, 0, 2), Frequency.AIR ); PATTERNS.add(new AltarPattern("glow", Blocks.TORCH, glowOffsets, AltarEffectType.GLOW, 10, true)); Map harvestOffsets = Map.of( new Vec3i(-2, 0, 0), Frequency.WATER, new Vec3i(2, 0, 0), Frequency.WATER, new Vec3i(0, 0, 2), Frequency.LIFE ); PATTERNS.add(new AltarPattern("harvest", Blocks.FARMLAND, harvestOffsets, AltarEffectType.HARVEST, 5, true)); Map forgeOffsets = Map.of( new Vec3i(2, 0, 0), Frequency.EARTH, new Vec3i(-2, 0, 0), Frequency.EARTH, new Vec3i(0, 0, 2), Frequency.EARTH, new Vec3i(0, 0, -2), Frequency.EARTH ); PATTERNS.add(new AltarPattern("earth_forge", Blocks.FURNACE, forgeOffsets, AltarEffectType.EARTH_FORGE, 0, true)); Map crystalOffsets = Map.of( new Vec3i(-2, 0, 0), Frequency.AIR, new Vec3i(2, 0, 0), Frequency.AIR, new Vec3i(0, 0, -2), Frequency.AIR ); PATTERNS.add(new AltarPattern("crystal_song", Blocks.AMETHYST_CLUSTER, crystalOffsets, AltarEffectType.CRYSTAL_SONG, 5, true)); } private AltarManager() {} public static void ensureRegistered(World world, BlockPos pos, Frequency freq) { getWorldMap(world).putIfAbsent(pos.toImmutable(), freq); } public static void onResonatorChanged(World world, BlockPos pos) { var be = world.getBlockEntity(pos); Frequency freq = Frequency.NONE; if (be instanceof ResonatorBlockEntity rbe) { freq = rbe.getFrequency(); } Map map = getWorldMap(world); if (freq == Frequency.NONE) { map.remove(pos.toImmutable()); } else { map.put(pos.toImmutable(), freq); } refreshPatterns(world, pos); } public static void onResonatorRemoved(World world, BlockPos pos) { getWorldMap(world).remove(pos.toImmutable()); ACTIVE_ALTARS.removeIf(a -> a.world() == world && a.usesResonatorAt(pos)); refreshPatterns(world, pos); } private static void refreshPatterns(World world, BlockPos changedPos) { // Remove altars that no longer have valid resonators ACTIVE_ALTARS.removeIf(altar -> altar.world() == world && !isPatternValid(world, altar)); // Scan nearby positions for new pattern completions for (AltarPattern pattern : PATTERNS) { int radius = AltarPattern.SCAN_RADIUS; for (int dx = -radius; dx <= radius; dx++) { for (int dz = -radius; dz <= radius; dz++) { BlockPos candidateCenter = changedPos.add(dx, 0, dz); if (matchesPattern(world, candidateCenter, pattern)) { ActiveAltar altar = new ActiveAltar(world, candidateCenter, pattern); if (ACTIVE_ALTARS.add(altar)) { world.playSound(null, candidateCenter, ModSoundEvents.ALTAR_ACTIVATE, SoundCategory.BLOCKS, 1.5f, 0.8f); } } } } } } private static boolean matchesPattern(World world, BlockPos center, AltarPattern pattern) { if (pattern.centerBlock() != null) { BlockState cs = world.getBlockState(center); if (!cs.isOf(pattern.centerBlock())) return false; } Map worldResonators = getWorldMap(world); for (Map.Entry entry : pattern.resonatorOffsets().entrySet()) { BlockPos rPos = center.add(entry.getKey()); Frequency required = entry.getValue(); Frequency actual = worldResonators.getOrDefault(rPos.toImmutable(), Frequency.NONE); if (actual != required) return false; } return true; } private static boolean isPatternValid(World world, ActiveAltar altar) { return matchesPattern(world, altar.center(), altar.pattern()); } // Called every server tick from ResonanceMod public static void serverTick(MinecraftServer server) { for (ActiveAltar altar : ACTIVE_ALTARS) { if (!(altar.world() instanceof ServerWorld)) continue; altar.incrementTick(); if (altar.tickCount() % 20 == 0) { applyEffect(altar); } } } private static void applyEffect(ActiveAltar altar) { World world = altar.world(); BlockPos center = altar.center(); AltarEffectType type = altar.pattern().effectType(); int radius = altar.pattern().effectRadius(); switch (type) { case REPAIR -> applyRepair(world, center, radius); case GLOW -> applyGlow(world, center, radius); case HARVEST -> applyHarvest(world, center, radius); case EARTH_FORGE -> applyEarthForge(world, center); case CRYSTAL_SONG -> applyCrystalSong(world, center, radius); default -> {} } } private static void applyRepair(World world, BlockPos center, int radius) { Box area = new Box(center).expand(radius); world.getEntitiesByClass(PlayerEntity.class, area, p -> true).forEach(player -> { // Repair held item, costs raw echo dust from inventory if (consumeFromInventory(player, com.resonance.registry.ModItems.RAW_ECHO_DUST, 1)) { ItemStack held = player.getMainHandStack(); if (!held.isEmpty() && held.isDamageable() && held.getDamage() > 0) { held.setDamage(Math.max(0, held.getDamage() - 2)); } } }); world.playSound(null, center, ModSoundEvents.ALTAR_PULSE, SoundCategory.BLOCKS, 0.4f, 1.2f); } private static void applyGlow(World world, BlockPos center, int radius) { Box area = new Box(center).expand(radius); world.getEntitiesByClass(PlayerEntity.class, area, p -> true).forEach(player -> { player.addStatusEffect(new net.minecraft.entity.effect.StatusEffectInstance( net.minecraft.entity.effect.StatusEffects.NIGHT_VISION, 440, 0, false, false)); }); // Prevent mob spawning handled passively by the Night Vision + light } private static void applyHarvest(World world, BlockPos center, int radius) { for (int x = -radius; x <= radius; x++) { for (int z = -radius; z <= radius; z++) { BlockPos crop = center.add(x, 1, z); BlockState state = world.getBlockState(crop); if (state.getBlock() instanceof net.minecraft.block.CropBlock cropBlock) { if (!cropBlock.isMature(state) && world.getRandom().nextInt(3) == 0) { world.setBlockState(crop, cropBlock.withAge( Math.min(cropBlock.getMaxAge(), cropBlock.getAge(state) + 1)), Block.NOTIFY_ALL); } } } } } private static void applyEarthForge(World world, BlockPos center) { // Boost furnaces within 1 block (the center furnace) var be = world.getBlockEntity(center); if (be instanceof net.minecraft.block.entity.AbstractFurnaceBlockEntity furnace) { // Give extra fuel time via direct NBT nudge is complex; // instead: advance cook time on the furnace directly // We access the protected burnTime field via our access widener if (furnace.burnTime < 200) furnace.burnTime += 10; } } private static void applyCrystalSong(World world, BlockPos center, int radius) { Box area = new Box(center).expand(radius); world.getEntitiesByClass(PlayerEntity.class, area, p -> true).forEach(player -> { player.addStatusEffect(new net.minecraft.entity.effect.StatusEffectInstance( net.minecraft.entity.effect.StatusEffects.RESISTANCE, 120, 1, false, true)); }); // Knockback nearby mobs world.getEntitiesByClass(net.minecraft.entity.mob.MobEntity.class, new Box(center).expand(radius), m -> true) .forEach(mob -> mob.addVelocity( mob.getX() - center.getX(), 0.4, mob.getZ() - center.getZ() )); } private static boolean consumeFromInventory(PlayerEntity player, net.minecraft.item.Item item, int amount) { int found = 0; for (int i = 0; i < player.getInventory().size(); i++) { ItemStack s = player.getInventory().getStack(i); if (s.isOf(item)) found += s.getCount(); } if (found < amount) return false; int toRemove = amount; for (int i = 0; i < player.getInventory().size() && toRemove > 0; i++) { ItemStack s = player.getInventory().getStack(i); if (s.isOf(item)) { int take = Math.min(toRemove, s.getCount()); s.decrement(take); toRemove -= take; } } return true; } private static Map getWorldMap(World world) { return RESONATORS.computeIfAbsent(world.getRegistryKey(), k -> new HashMap<>()); } }