314 lines
10 KiB
Java
314 lines
10 KiB
Java
package com.hypixel.hytale.protocol.packets.interface_;
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import com.hypixel.hytale.protocol.FormattedMessage;
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import com.hypixel.hytale.protocol.Packet;
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import com.hypixel.hytale.protocol.io.PacketIO;
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import com.hypixel.hytale.protocol.io.ProtocolException;
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import com.hypixel.hytale.protocol.io.ValidationResult;
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import com.hypixel.hytale.protocol.io.VarInt;
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import io.netty.buffer.ByteBuf;
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import java.util.Objects;
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import javax.annotation.Nonnull;
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import javax.annotation.Nullable;
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public class ShowEventTitle implements Packet {
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public static final int PACKET_ID = 214;
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public static final boolean IS_COMPRESSED = false;
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public static final int NULLABLE_BIT_FIELD_SIZE = 1;
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public static final int FIXED_BLOCK_SIZE = 14;
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public static final int VARIABLE_FIELD_COUNT = 3;
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public static final int VARIABLE_BLOCK_START = 26;
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public static final int MAX_SIZE = 1677721600;
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public float fadeInDuration;
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public float fadeOutDuration;
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public float duration;
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@Nullable
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public String icon;
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public boolean isMajor;
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@Nullable
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public FormattedMessage primaryTitle;
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@Nullable
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public FormattedMessage secondaryTitle;
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@Override
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public int getId() {
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return 214;
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}
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public ShowEventTitle() {
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}
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public ShowEventTitle(
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float fadeInDuration,
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float fadeOutDuration,
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float duration,
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@Nullable String icon,
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boolean isMajor,
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@Nullable FormattedMessage primaryTitle,
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@Nullable FormattedMessage secondaryTitle
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) {
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this.fadeInDuration = fadeInDuration;
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this.fadeOutDuration = fadeOutDuration;
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this.duration = duration;
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this.icon = icon;
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this.isMajor = isMajor;
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this.primaryTitle = primaryTitle;
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this.secondaryTitle = secondaryTitle;
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}
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public ShowEventTitle(@Nonnull ShowEventTitle other) {
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this.fadeInDuration = other.fadeInDuration;
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this.fadeOutDuration = other.fadeOutDuration;
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this.duration = other.duration;
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this.icon = other.icon;
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this.isMajor = other.isMajor;
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this.primaryTitle = other.primaryTitle;
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this.secondaryTitle = other.secondaryTitle;
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}
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@Nonnull
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public static ShowEventTitle deserialize(@Nonnull ByteBuf buf, int offset) {
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ShowEventTitle obj = new ShowEventTitle();
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byte nullBits = buf.getByte(offset);
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obj.fadeInDuration = buf.getFloatLE(offset + 1);
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obj.fadeOutDuration = buf.getFloatLE(offset + 5);
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obj.duration = buf.getFloatLE(offset + 9);
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obj.isMajor = buf.getByte(offset + 13) != 0;
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if ((nullBits & 1) != 0) {
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int varPos0 = offset + 26 + buf.getIntLE(offset + 14);
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int iconLen = VarInt.peek(buf, varPos0);
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if (iconLen < 0) {
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throw ProtocolException.negativeLength("Icon", iconLen);
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}
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if (iconLen > 4096000) {
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throw ProtocolException.stringTooLong("Icon", iconLen, 4096000);
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}
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obj.icon = PacketIO.readVarString(buf, varPos0, PacketIO.UTF8);
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}
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if ((nullBits & 2) != 0) {
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int varPos1 = offset + 26 + buf.getIntLE(offset + 18);
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obj.primaryTitle = FormattedMessage.deserialize(buf, varPos1);
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}
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if ((nullBits & 4) != 0) {
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int varPos2 = offset + 26 + buf.getIntLE(offset + 22);
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obj.secondaryTitle = FormattedMessage.deserialize(buf, varPos2);
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}
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return obj;
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}
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public static int computeBytesConsumed(@Nonnull ByteBuf buf, int offset) {
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byte nullBits = buf.getByte(offset);
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int maxEnd = 26;
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if ((nullBits & 1) != 0) {
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int fieldOffset0 = buf.getIntLE(offset + 14);
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int pos0 = offset + 26 + fieldOffset0;
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int sl = VarInt.peek(buf, pos0);
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pos0 += VarInt.length(buf, pos0) + sl;
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if (pos0 - offset > maxEnd) {
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maxEnd = pos0 - offset;
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}
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}
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if ((nullBits & 2) != 0) {
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int fieldOffset1 = buf.getIntLE(offset + 18);
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int pos1 = offset + 26 + fieldOffset1;
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pos1 += FormattedMessage.computeBytesConsumed(buf, pos1);
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if (pos1 - offset > maxEnd) {
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maxEnd = pos1 - offset;
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}
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}
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if ((nullBits & 4) != 0) {
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int fieldOffset2 = buf.getIntLE(offset + 22);
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int pos2 = offset + 26 + fieldOffset2;
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pos2 += FormattedMessage.computeBytesConsumed(buf, pos2);
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if (pos2 - offset > maxEnd) {
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maxEnd = pos2 - offset;
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}
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}
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return maxEnd;
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}
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@Override
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public void serialize(@Nonnull ByteBuf buf) {
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int startPos = buf.writerIndex();
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byte nullBits = 0;
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if (this.icon != null) {
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nullBits = (byte)(nullBits | 1);
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}
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if (this.primaryTitle != null) {
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nullBits = (byte)(nullBits | 2);
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}
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if (this.secondaryTitle != null) {
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nullBits = (byte)(nullBits | 4);
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}
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buf.writeByte(nullBits);
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buf.writeFloatLE(this.fadeInDuration);
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buf.writeFloatLE(this.fadeOutDuration);
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buf.writeFloatLE(this.duration);
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buf.writeByte(this.isMajor ? 1 : 0);
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int iconOffsetSlot = buf.writerIndex();
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buf.writeIntLE(0);
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int primaryTitleOffsetSlot = buf.writerIndex();
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buf.writeIntLE(0);
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int secondaryTitleOffsetSlot = buf.writerIndex();
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buf.writeIntLE(0);
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int varBlockStart = buf.writerIndex();
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if (this.icon != null) {
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buf.setIntLE(iconOffsetSlot, buf.writerIndex() - varBlockStart);
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PacketIO.writeVarString(buf, this.icon, 4096000);
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} else {
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buf.setIntLE(iconOffsetSlot, -1);
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}
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if (this.primaryTitle != null) {
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buf.setIntLE(primaryTitleOffsetSlot, buf.writerIndex() - varBlockStart);
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this.primaryTitle.serialize(buf);
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} else {
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buf.setIntLE(primaryTitleOffsetSlot, -1);
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}
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if (this.secondaryTitle != null) {
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buf.setIntLE(secondaryTitleOffsetSlot, buf.writerIndex() - varBlockStart);
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this.secondaryTitle.serialize(buf);
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} else {
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buf.setIntLE(secondaryTitleOffsetSlot, -1);
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}
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}
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@Override
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public int computeSize() {
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int size = 26;
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if (this.icon != null) {
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size += PacketIO.stringSize(this.icon);
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}
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if (this.primaryTitle != null) {
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size += this.primaryTitle.computeSize();
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}
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if (this.secondaryTitle != null) {
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size += this.secondaryTitle.computeSize();
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}
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return size;
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}
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public static ValidationResult validateStructure(@Nonnull ByteBuf buffer, int offset) {
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if (buffer.readableBytes() - offset < 26) {
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return ValidationResult.error("Buffer too small: expected at least 26 bytes");
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} else {
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byte nullBits = buffer.getByte(offset);
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if ((nullBits & 1) != 0) {
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int iconOffset = buffer.getIntLE(offset + 14);
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if (iconOffset < 0) {
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return ValidationResult.error("Invalid offset for Icon");
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}
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int pos = offset + 26 + iconOffset;
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if (pos >= buffer.writerIndex()) {
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return ValidationResult.error("Offset out of bounds for Icon");
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}
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int iconLen = VarInt.peek(buffer, pos);
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if (iconLen < 0) {
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return ValidationResult.error("Invalid string length for Icon");
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}
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if (iconLen > 4096000) {
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return ValidationResult.error("Icon exceeds max length 4096000");
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}
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pos += VarInt.length(buffer, pos);
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pos += iconLen;
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if (pos > buffer.writerIndex()) {
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return ValidationResult.error("Buffer overflow reading Icon");
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}
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}
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if ((nullBits & 2) != 0) {
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int primaryTitleOffset = buffer.getIntLE(offset + 18);
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if (primaryTitleOffset < 0) {
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return ValidationResult.error("Invalid offset for PrimaryTitle");
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}
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int posx = offset + 26 + primaryTitleOffset;
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if (posx >= buffer.writerIndex()) {
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return ValidationResult.error("Offset out of bounds for PrimaryTitle");
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}
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ValidationResult primaryTitleResult = FormattedMessage.validateStructure(buffer, posx);
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if (!primaryTitleResult.isValid()) {
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return ValidationResult.error("Invalid PrimaryTitle: " + primaryTitleResult.error());
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}
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posx += FormattedMessage.computeBytesConsumed(buffer, posx);
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}
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if ((nullBits & 4) != 0) {
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int secondaryTitleOffset = buffer.getIntLE(offset + 22);
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if (secondaryTitleOffset < 0) {
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return ValidationResult.error("Invalid offset for SecondaryTitle");
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}
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int posxx = offset + 26 + secondaryTitleOffset;
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if (posxx >= buffer.writerIndex()) {
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return ValidationResult.error("Offset out of bounds for SecondaryTitle");
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}
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ValidationResult secondaryTitleResult = FormattedMessage.validateStructure(buffer, posxx);
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if (!secondaryTitleResult.isValid()) {
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return ValidationResult.error("Invalid SecondaryTitle: " + secondaryTitleResult.error());
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}
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posxx += FormattedMessage.computeBytesConsumed(buffer, posxx);
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}
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return ValidationResult.OK;
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}
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}
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public ShowEventTitle clone() {
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ShowEventTitle copy = new ShowEventTitle();
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copy.fadeInDuration = this.fadeInDuration;
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copy.fadeOutDuration = this.fadeOutDuration;
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copy.duration = this.duration;
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copy.icon = this.icon;
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copy.isMajor = this.isMajor;
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copy.primaryTitle = this.primaryTitle != null ? this.primaryTitle.clone() : null;
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copy.secondaryTitle = this.secondaryTitle != null ? this.secondaryTitle.clone() : null;
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return copy;
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj) {
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return true;
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} else {
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return !(obj instanceof ShowEventTitle other)
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? false
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: this.fadeInDuration == other.fadeInDuration
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&& this.fadeOutDuration == other.fadeOutDuration
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&& this.duration == other.duration
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&& Objects.equals(this.icon, other.icon)
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&& this.isMajor == other.isMajor
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&& Objects.equals(this.primaryTitle, other.primaryTitle)
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&& Objects.equals(this.secondaryTitle, other.secondaryTitle);
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}
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}
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@Override
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public int hashCode() {
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return Objects.hash(this.fadeInDuration, this.fadeOutDuration, this.duration, this.icon, this.isMajor, this.primaryTitle, this.secondaryTitle);
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}
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}
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