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cn.nukkit.block.BlockFire Maven / Gradle / Ivy
package cn.nukkit.block;
import cn.nukkit.Server;
import cn.nukkit.api.PowerNukkitDifference;
import cn.nukkit.api.PowerNukkitOnly;
import cn.nukkit.api.PowerNukkitXOnly;
import cn.nukkit.api.Since;
import cn.nukkit.blockproperty.BlockProperties;
import cn.nukkit.blockproperty.CommonBlockProperties;
import cn.nukkit.blockproperty.IntBlockProperty;
import cn.nukkit.entity.Entity;
import cn.nukkit.entity.projectile.EntityArrow;
import cn.nukkit.event.block.BlockBurnEvent;
import cn.nukkit.event.block.BlockFadeEvent;
import cn.nukkit.event.block.BlockIgniteEvent;
import cn.nukkit.event.entity.EntityCombustByBlockEvent;
import cn.nukkit.event.entity.EntityDamageByBlockEvent;
import cn.nukkit.event.entity.EntityDamageEvent.DamageCause;
import cn.nukkit.item.Item;
import cn.nukkit.item.ItemBlock;
import cn.nukkit.level.GameRule;
import cn.nukkit.level.Level;
import cn.nukkit.math.AxisAlignedBB;
import cn.nukkit.math.BlockFace;
import cn.nukkit.math.Vector3;
import cn.nukkit.potion.Effect;
import org.jetbrains.annotations.NotNull;
import java.util.Random;
import java.util.concurrent.ThreadLocalRandom;
/**
* @author MagicDroidX (Nukkit Project)
*/
public class BlockFire extends BlockFlowable {
@PowerNukkitOnly
@Since("1.4.0.0-PN")
public static final IntBlockProperty FIRE_AGE = CommonBlockProperties.AGE_15;
@PowerNukkitOnly
@Since("1.4.0.0-PN")
public static final BlockProperties PROPERTIES = new BlockProperties(FIRE_AGE);
public BlockFire() {
this(0);
}
public BlockFire(int meta) {
super(meta);
}
@Override
public int getId() {
return FIRE;
}
@Since("1.4.0.0-PN")
@PowerNukkitOnly
@NotNull
@Override
public BlockProperties getProperties() {
return PROPERTIES;
}
@Override
public boolean hasEntityCollision() {
return true;
}
@Override
public String getName() {
return "Fire Block";
}
@Override
public int getLightLevel() {
return 15;
}
@Override
public boolean isBreakable(Item item) {
return false;
}
@Override
public boolean canBeReplaced() {
return true;
}
@Override
public void onEntityCollide(Entity entity) {
if (!entity.hasEffect(Effect.FIRE_RESISTANCE)) {
entity.attack(new EntityDamageByBlockEvent(this, entity, DamageCause.FIRE, 1));
}
EntityCombustByBlockEvent ev = new EntityCombustByBlockEvent(this, entity, 8);
if (entity instanceof EntityArrow) {
ev.setCancelled();
}
Server.getInstance().getPluginManager().callEvent(ev);
if (!ev.isCancelled() && entity.isAlive() && entity.noDamageTicks == 0) {
entity.setOnFire(ev.getDuration());
}
}
@Override
public Item[] getDrops(Item item) {
return Item.EMPTY_ARRAY;
}
@PowerNukkitDifference(info = "Soul Fire Implementation", since = "1.4.0.0-PN")
@Override
public int onUpdate(int type) {
if (type == Level.BLOCK_UPDATE_NORMAL || type == Level.BLOCK_UPDATE_RANDOM) {
Block down = down();
if (type == Level.BLOCK_UPDATE_NORMAL) {
int downId = down.getId();
if (downId == Block.SOUL_SAND || downId == Block.SOUL_SOIL) {
this.getLevel().setBlock(this, getCurrentState().withBlockId(BlockID.SOUL_FIRE).getBlock(this));
return type;
}
}
if (!this.isBlockTopFacingSurfaceSolid(down) && !this.canNeighborBurn()) {
BlockFadeEvent event = new BlockFadeEvent(this, get(AIR));
level.getServer().getPluginManager().callEvent(event);
if (!event.isCancelled()) {
level.setBlock(this, event.getNewState(), true);
}
} else if (this.level.gameRules.getBoolean(GameRule.DO_FIRE_TICK) && !level.isUpdateScheduled(this, this)) {
level.scheduleUpdate(this, tickRate());
}
//在第一次放置时就检查下雨
checkRain();
return Level.BLOCK_UPDATE_NORMAL;
} else if (type == Level.BLOCK_UPDATE_SCHEDULED && this.level.gameRules.getBoolean(GameRule.DO_FIRE_TICK)) {
Block down = down();
int downId = down.getId();
ThreadLocalRandom random = ThreadLocalRandom.current();
//TODO: END
if (!this.isBlockTopFacingSurfaceSolid(down) && !this.canNeighborBurn()) {
BlockFadeEvent event = new BlockFadeEvent(this, get(AIR));
level.getServer().getPluginManager().callEvent(event);
if (!event.isCancelled()) {
level.setBlock(this, event.getNewState(), true);
}
}
boolean forever = downId == BlockID.NETHERRACK || downId == BlockID.MAGMA
|| downId == BlockID.BEDROCK && ((BlockBedrock) down).getBurnIndefinitely();
if (!checkRain()) {
int meta = this.getDamage();
if (meta < 15) {
int newMeta = meta + random.nextInt(3);
this.setDamage(Math.min(newMeta, 15));
this.getLevel().setBlock(this, this, true);
}
this.getLevel().scheduleUpdate(this, this.tickRate() + random.nextInt(10));
if (!forever && !this.canNeighborBurn()) {
if (!this.isBlockTopFacingSurfaceSolid(down) || meta > 3) {
BlockFadeEvent event = new BlockFadeEvent(this, get(AIR));
level.getServer().getPluginManager().callEvent(event);
if (!event.isCancelled()) {
level.setBlock(this, event.getNewState(), true);
}
}
} else if (!forever && !(down.getBurnAbility() > 0) && meta == 15 && random.nextInt(4) == 0) {
BlockFadeEvent event = new BlockFadeEvent(this, get(AIR));
level.getServer().getPluginManager().callEvent(event);
if (!event.isCancelled()) {
level.setBlock(this, event.getNewState(), true);
}
} else {
int o = 0;
//TODO: decrease the o if the rainfall values are high
this.tryToCatchBlockOnFire(this.east(), 300 + o, meta);
this.tryToCatchBlockOnFire(this.west(), 300 + o, meta);
this.tryToCatchBlockOnFire(down, 250 + o, meta);
this.tryToCatchBlockOnFire(this.up(), 250 + o, meta);
this.tryToCatchBlockOnFire(this.south(), 300 + o, meta);
this.tryToCatchBlockOnFire(this.north(), 300 + o, meta);
for (int x = (int) (this.x - 1); x <= (int) (this.x + 1); ++x) {
for (int z = (int) (this.z - 1); z <= (int) (this.z + 1); ++z) {
for (int y = (int) (this.y - 1); y <= (int) (this.y + 4); ++y) {
if (x != (int) this.x || y != (int) this.y || z != (int) this.z) {
int k = 100;
if (y > this.y + 1) {
k += (y - (this.y + 1)) * 100;
}
Block block = this.getLevel().getBlock(new Vector3(x, y, z));
int chance = this.getChanceOfNeighborsEncouragingFire(block);
if (chance > 0) {
int t = (chance + 40 + this.getLevel().getServer().getDifficulty() * 7) / (meta + 30);
//TODO: decrease the t if the rainfall values are high
if (t > 0 && random.nextInt(k) <= t) {
int damage = meta + random.nextInt(5) / 4;
if (damage > 15) {
damage = 15;
}
BlockIgniteEvent e = new BlockIgniteEvent(block, this, null, BlockIgniteEvent.BlockIgniteCause.SPREAD);
this.level.getServer().getPluginManager().callEvent(e);
if (!e.isCancelled()) {
this.getLevel().setBlock(block, Block.get(BlockID.FIRE, damage), true);
this.getLevel().scheduleUpdate(block, this.tickRate());
}
}
}
}
}
}
}
}
}
}
return 0;
}
private void tryToCatchBlockOnFire(Block block, int bound, int damage) {
int burnAbility = block.getBurnAbility();
Random random = ThreadLocalRandom.current();
if (random.nextInt(bound) < burnAbility) {
if (random.nextInt(damage + 10) < 5) {
int meta = damage + random.nextInt(5) / 4;
if (meta > 15) {
meta = 15;
}
BlockIgniteEvent e = new BlockIgniteEvent(block, this, null, BlockIgniteEvent.BlockIgniteCause.SPREAD);
this.level.getServer().getPluginManager().callEvent(e);
if (!e.isCancelled()) {
this.getLevel().setBlock(block, Block.get(BlockID.FIRE, meta), true);
this.getLevel().scheduleUpdate(block, this.tickRate());
}
} else {
BlockBurnEvent ev = new BlockBurnEvent(block);
this.getLevel().getServer().getPluginManager().callEvent(ev);
if (!ev.isCancelled()) {
this.getLevel().setBlock(block, Block.get(BlockID.AIR), true);
}
}
if (block instanceof BlockTNT) {
((BlockTNT) block).prime();
}
}
}
private int getChanceOfNeighborsEncouragingFire(Block block) {
if (block.getId() != AIR) {
return 0;
} else {
int chance = 0;
chance = Math.max(chance, block.east().getBurnChance());
chance = Math.max(chance, block.west().getBurnChance());
chance = Math.max(chance, block.down().getBurnChance());
chance = Math.max(chance, block.up().getBurnChance());
chance = Math.max(chance, block.south().getBurnChance());
chance = Math.max(chance, block.north().getBurnChance());
return chance;
}
}
public boolean canNeighborBurn() {
for (BlockFace face : BlockFace.values()) {
if (this.getSide(face).getBurnChance() > 0) {
return true;
}
}
return false;
}
public boolean isBlockTopFacingSurfaceSolid(Block block) {
if (block != null) {
if (block instanceof BlockStairs) {
return false;
} else if (block instanceof BlockSlab && !((BlockSlab) block).isOnTop()) {
return false;
} else if (block instanceof BlockSnowLayer) {
return false;
} else if (block instanceof BlockFenceGate) {
return false;
} else if (block instanceof BlockTrapdoor) {
return false;
} else if (block instanceof BlockMossCarpet) {
return false;
} else if (block instanceof BlockAzalea) {
return false;
} else return block.isSolid();
}
return false;
}
@Override
public int tickRate() {
return 30;
}
@Override
protected AxisAlignedBB recalculateCollisionBoundingBox() {
return this;
}
@Override
public Item toItem() {
return new ItemBlock(Block.get(BlockID.AIR));
}
/**
* 检查火焰是否应被雨水浇灭
* @return 是否应被雨水浇灭
*/
@PowerNukkitXOnly
@Since("1.19.20-r3")
protected boolean checkRain() {
var down = down();
int downId = down.getId();
boolean forever = downId == BlockID.NETHERRACK || downId == BlockID.MAGMA
|| downId == BlockID.BEDROCK && ((BlockBedrock) down).getBurnIndefinitely();
if (!forever && this.getLevel().isRaining() &&
(this.getLevel().canBlockSeeSky(this) ||
this.getLevel().canBlockSeeSky(this.east()) ||
this.getLevel().canBlockSeeSky(this.west()) ||
this.getLevel().canBlockSeeSky(this.south()) ||
this.getLevel().canBlockSeeSky(this.north()))
) {
BlockFadeEvent event = new BlockFadeEvent(this, get(AIR));
level.getServer().getPluginManager().callEvent(event);
if (!event.isCancelled()) {
level.setBlock(this, event.getNewState(), true);
}
return true;
}
return false;
}
}
