Particle.java
package com.hypixel.hytale.protocol;
import com.hypixel.hytale.protocol.io.PacketIO;
import com.hypixel.hytale.protocol.io.ProtocolException;
import com.hypixel.hytale.protocol.io.ValidationResult;
import com.hypixel.hytale.protocol.io.VarInt;
import io.netty.buffer.ByteBuf;
import java.util.HashMap;
import java.util.Map;
import java.util.Objects;
import javax.annotation.Nonnull;
import javax.annotation.Nullable;
public class Particle {
public static final int NULLABLE_BIT_FIELD_SIZE = 1;
public static final int FIXED_BLOCK_SIZE = 133;
public static final int VARIABLE_FIELD_COUNT = 2;
public static final int VARIABLE_BLOCK_START = 141;
public static final int MAX_SIZE = 270336151;
@Nullable
public String texturePath;
@Nullable
public Size frameSize;
@Nonnull
public ParticleUVOption uvOption;
@Nonnull
public ParticleScaleRatioConstraint scaleRatioConstraint;
@Nonnull
public SoftParticle softParticles;
public float softParticlesFadeFactor;
public boolean useSpriteBlending;
@Nullable
public ParticleAnimationFrame initialAnimationFrame;
@Nullable
public ParticleAnimationFrame collisionAnimationFrame;
@Nullable
public Map<Integer, ParticleAnimationFrame> animationFrames;
public Particle() {
this.uvOption = ParticleUVOption.None;
this.scaleRatioConstraint = ParticleScaleRatioConstraint.OneToOne;
this.softParticles = SoftParticle.Enable;
}
public Particle(@Nullable String texturePath, @Nullable Size frameSize, @Nonnull ParticleUVOption uvOption, @Nonnull ParticleScaleRatioConstraint scaleRatioConstraint, @Nonnull SoftParticle softParticles, float softParticlesFadeFactor, boolean useSpriteBlending, @Nullable ParticleAnimationFrame initialAnimationFrame, @Nullable ParticleAnimationFrame collisionAnimationFrame, @Nullable Map<Integer, ParticleAnimationFrame> animationFrames) {
this.uvOption = ParticleUVOption.None;
this.scaleRatioConstraint = ParticleScaleRatioConstraint.OneToOne;
this.softParticles = SoftParticle.Enable;
this.texturePath = texturePath;
this.frameSize = frameSize;
this.uvOption = uvOption;
this.scaleRatioConstraint = scaleRatioConstraint;
this.softParticles = softParticles;
this.softParticlesFadeFactor = softParticlesFadeFactor;
this.useSpriteBlending = useSpriteBlending;
this.initialAnimationFrame = initialAnimationFrame;
this.collisionAnimationFrame = collisionAnimationFrame;
this.animationFrames = animationFrames;
}
public Particle(@Nonnull Particle other) {
this.uvOption = ParticleUVOption.None;
this.scaleRatioConstraint = ParticleScaleRatioConstraint.OneToOne;
this.softParticles = SoftParticle.Enable;
this.texturePath = other.texturePath;
this.frameSize = other.frameSize;
this.uvOption = other.uvOption;
this.scaleRatioConstraint = other.scaleRatioConstraint;
this.softParticles = other.softParticles;
this.softParticlesFadeFactor = other.softParticlesFadeFactor;
this.useSpriteBlending = other.useSpriteBlending;
this.initialAnimationFrame = other.initialAnimationFrame;
this.collisionAnimationFrame = other.collisionAnimationFrame;
this.animationFrames = other.animationFrames;
}
@Nonnull
public static Particle deserialize(@Nonnull ByteBuf buf, int offset) {
Particle obj = new Particle();
byte nullBits = buf.getByte(offset);
if ((nullBits & 2) != 0) {
obj.frameSize = Size.deserialize(buf, offset + 1);
}
obj.uvOption = ParticleUVOption.fromValue(buf.getByte(offset + 9));
obj.scaleRatioConstraint = ParticleScaleRatioConstraint.fromValue(buf.getByte(offset + 10));
obj.softParticles = SoftParticle.fromValue(buf.getByte(offset + 11));
obj.softParticlesFadeFactor = buf.getFloatLE(offset + 12);
obj.useSpriteBlending = buf.getByte(offset + 16) != 0;
if ((nullBits & 4) != 0) {
obj.initialAnimationFrame = ParticleAnimationFrame.deserialize(buf, offset + 17);
}
if ((nullBits & 8) != 0) {
obj.collisionAnimationFrame = ParticleAnimationFrame.deserialize(buf, offset + 75);
}
if ((nullBits & 1) != 0) {
int varPos0 = offset + 141 + buf.getIntLE(offset + 133);
int texturePathLen = VarInt.peek(buf, varPos0);
if (texturePathLen < 0) {
throw ProtocolException.negativeLength("TexturePath", texturePathLen);
}
if (texturePathLen > 4096000) {
throw ProtocolException.stringTooLong("TexturePath", texturePathLen, 4096000);
}
obj.texturePath = PacketIO.readVarString(buf, varPos0, PacketIO.UTF8);
}
if ((nullBits & 16) != 0) {
int varPos1 = offset + 141 + buf.getIntLE(offset + 137);
int animationFramesCount = VarInt.peek(buf, varPos1);
if (animationFramesCount < 0) {
throw ProtocolException.negativeLength("AnimationFrames", animationFramesCount);
}
if (animationFramesCount > 4096000) {
throw ProtocolException.dictionaryTooLarge("AnimationFrames", animationFramesCount, 4096000);
}
int varIntLen = VarInt.length(buf, varPos1);
obj.animationFrames = new HashMap(animationFramesCount);
int dictPos = varPos1 + varIntLen;
for(int i = 0; i < animationFramesCount; ++i) {
int key = buf.getIntLE(dictPos);
dictPos += 4;
ParticleAnimationFrame val = ParticleAnimationFrame.deserialize(buf, dictPos);
dictPos += ParticleAnimationFrame.computeBytesConsumed(buf, dictPos);
if (obj.animationFrames.put(key, val) != null) {
throw ProtocolException.duplicateKey("animationFrames", key);
}
}
}
return obj;
}
public static int computeBytesConsumed(@Nonnull ByteBuf buf, int offset) {
byte nullBits = buf.getByte(offset);
int maxEnd = 141;
if ((nullBits & 1) != 0) {
int fieldOffset0 = buf.getIntLE(offset + 133);
int pos0 = offset + 141 + fieldOffset0;
int sl = VarInt.peek(buf, pos0);
pos0 += VarInt.length(buf, pos0) + sl;
if (pos0 - offset > maxEnd) {
maxEnd = pos0 - offset;
}
}
if ((nullBits & 16) != 0) {
int fieldOffset1 = buf.getIntLE(offset + 137);
int pos1 = offset + 141 + fieldOffset1;
int dictLen = VarInt.peek(buf, pos1);
pos1 += VarInt.length(buf, pos1);
for(int i = 0; i < dictLen; ++i) {
pos1 += 4;
pos1 += ParticleAnimationFrame.computeBytesConsumed(buf, pos1);
}
if (pos1 - offset > maxEnd) {
maxEnd = pos1 - offset;
}
}
return maxEnd;
}
public void serialize(@Nonnull ByteBuf buf) {
int startPos = buf.writerIndex();
byte nullBits = 0;
if (this.texturePath != null) {
nullBits = (byte)(nullBits | 1);
}
if (this.frameSize != null) {
nullBits = (byte)(nullBits | 2);
}
if (this.initialAnimationFrame != null) {
nullBits = (byte)(nullBits | 4);
}
if (this.collisionAnimationFrame != null) {
nullBits = (byte)(nullBits | 8);
}
if (this.animationFrames != null) {
nullBits = (byte)(nullBits | 16);
}
buf.writeByte(nullBits);
if (this.frameSize != null) {
this.frameSize.serialize(buf);
} else {
buf.writeZero(8);
}
buf.writeByte(this.uvOption.getValue());
buf.writeByte(this.scaleRatioConstraint.getValue());
buf.writeByte(this.softParticles.getValue());
buf.writeFloatLE(this.softParticlesFadeFactor);
buf.writeByte(this.useSpriteBlending ? 1 : 0);
if (this.initialAnimationFrame != null) {
this.initialAnimationFrame.serialize(buf);
} else {
buf.writeZero(58);
}
if (this.collisionAnimationFrame != null) {
this.collisionAnimationFrame.serialize(buf);
} else {
buf.writeZero(58);
}
int texturePathOffsetSlot = buf.writerIndex();
buf.writeIntLE(0);
int animationFramesOffsetSlot = buf.writerIndex();
buf.writeIntLE(0);
int varBlockStart = buf.writerIndex();
if (this.texturePath != null) {
buf.setIntLE(texturePathOffsetSlot, buf.writerIndex() - varBlockStart);
PacketIO.writeVarString(buf, this.texturePath, 4096000);
} else {
buf.setIntLE(texturePathOffsetSlot, -1);
}
if (this.animationFrames != null) {
buf.setIntLE(animationFramesOffsetSlot, buf.writerIndex() - varBlockStart);
if (this.animationFrames.size() > 4096000) {
throw ProtocolException.dictionaryTooLarge("AnimationFrames", this.animationFrames.size(), 4096000);
}
VarInt.write(buf, this.animationFrames.size());
for(Map.Entry<Integer, ParticleAnimationFrame> e : this.animationFrames.entrySet()) {
buf.writeIntLE((Integer)e.getKey());
((ParticleAnimationFrame)e.getValue()).serialize(buf);
}
} else {
buf.setIntLE(animationFramesOffsetSlot, -1);
}
}
public int computeSize() {
int size = 141;
if (this.texturePath != null) {
size += PacketIO.stringSize(this.texturePath);
}
if (this.animationFrames != null) {
size += VarInt.size(this.animationFrames.size()) + this.animationFrames.size() * 62;
}
return size;
}
public static ValidationResult validateStructure(@Nonnull ByteBuf buffer, int offset) {
if (buffer.readableBytes() - offset < 141) {
return ValidationResult.error("Buffer too small: expected at least 141 bytes");
} else {
byte nullBits = buffer.getByte(offset);
if ((nullBits & 1) != 0) {
int texturePathOffset = buffer.getIntLE(offset + 133);
if (texturePathOffset < 0) {
return ValidationResult.error("Invalid offset for TexturePath");
}
int pos = offset + 141 + texturePathOffset;
if (pos >= buffer.writerIndex()) {
return ValidationResult.error("Offset out of bounds for TexturePath");
}
int texturePathLen = VarInt.peek(buffer, pos);
if (texturePathLen < 0) {
return ValidationResult.error("Invalid string length for TexturePath");
}
if (texturePathLen > 4096000) {
return ValidationResult.error("TexturePath exceeds max length 4096000");
}
pos += VarInt.length(buffer, pos);
pos += texturePathLen;
if (pos > buffer.writerIndex()) {
return ValidationResult.error("Buffer overflow reading TexturePath");
}
}
if ((nullBits & 16) != 0) {
int animationFramesOffset = buffer.getIntLE(offset + 137);
if (animationFramesOffset < 0) {
return ValidationResult.error("Invalid offset for AnimationFrames");
}
int pos = offset + 141 + animationFramesOffset;
if (pos >= buffer.writerIndex()) {
return ValidationResult.error("Offset out of bounds for AnimationFrames");
}
int animationFramesCount = VarInt.peek(buffer, pos);
if (animationFramesCount < 0) {
return ValidationResult.error("Invalid dictionary count for AnimationFrames");
}
if (animationFramesCount > 4096000) {
return ValidationResult.error("AnimationFrames exceeds max length 4096000");
}
pos += VarInt.length(buffer, pos);
for(int i = 0; i < animationFramesCount; ++i) {
pos += 4;
if (pos > buffer.writerIndex()) {
return ValidationResult.error("Buffer overflow reading key");
}
pos += 58;
}
}
return ValidationResult.OK;
}
}
public Particle clone() {
Particle copy = new Particle();
copy.texturePath = this.texturePath;
copy.frameSize = this.frameSize != null ? this.frameSize.clone() : null;
copy.uvOption = this.uvOption;
copy.scaleRatioConstraint = this.scaleRatioConstraint;
copy.softParticles = this.softParticles;
copy.softParticlesFadeFactor = this.softParticlesFadeFactor;
copy.useSpriteBlending = this.useSpriteBlending;
copy.initialAnimationFrame = this.initialAnimationFrame != null ? this.initialAnimationFrame.clone() : null;
copy.collisionAnimationFrame = this.collisionAnimationFrame != null ? this.collisionAnimationFrame.clone() : null;
if (this.animationFrames != null) {
Map<Integer, ParticleAnimationFrame> m = new HashMap();
for(Map.Entry<Integer, ParticleAnimationFrame> e : this.animationFrames.entrySet()) {
m.put((Integer)e.getKey(), ((ParticleAnimationFrame)e.getValue()).clone());
}
copy.animationFrames = m;
}
return copy;
}
public boolean equals(Object obj) {
if (this == obj) {
return true;
} else if (!(obj instanceof Particle)) {
return false;
} else {
Particle other = (Particle)obj;
return Objects.equals(this.texturePath, other.texturePath) && Objects.equals(this.frameSize, other.frameSize) && Objects.equals(this.uvOption, other.uvOption) && Objects.equals(this.scaleRatioConstraint, other.scaleRatioConstraint) && Objects.equals(this.softParticles, other.softParticles) && this.softParticlesFadeFactor == other.softParticlesFadeFactor && this.useSpriteBlending == other.useSpriteBlending && Objects.equals(this.initialAnimationFrame, other.initialAnimationFrame) && Objects.equals(this.collisionAnimationFrame, other.collisionAnimationFrame) && Objects.equals(this.animationFrames, other.animationFrames);
}
}
public int hashCode() {
return Objects.hash(new Object[]{this.texturePath, this.frameSize, this.uvOption, this.scaleRatioConstraint, this.softParticles, this.softParticlesFadeFactor, this.useSpriteBlending, this.initialAnimationFrame, this.collisionAnimationFrame, this.animationFrames});
}
}