325 lines
11 KiB
Java
325 lines
11 KiB
Java
package com.hypixel.hytale.protocol.packets.player;
|
|
|
|
import com.hypixel.hytale.protocol.DebugShape;
|
|
import com.hypixel.hytale.protocol.Packet;
|
|
import com.hypixel.hytale.protocol.Vector3f;
|
|
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.Arrays;
|
|
import java.util.Objects;
|
|
import javax.annotation.Nonnull;
|
|
import javax.annotation.Nullable;
|
|
|
|
public class DisplayDebug implements Packet {
|
|
public static final int PACKET_ID = 114;
|
|
public static final boolean IS_COMPRESSED = false;
|
|
public static final int NULLABLE_BIT_FIELD_SIZE = 1;
|
|
public static final int FIXED_BLOCK_SIZE = 19;
|
|
public static final int VARIABLE_FIELD_COUNT = 2;
|
|
public static final int VARIABLE_BLOCK_START = 27;
|
|
public static final int MAX_SIZE = 32768037;
|
|
@Nonnull
|
|
public DebugShape shape = DebugShape.Sphere;
|
|
@Nullable
|
|
public float[] matrix;
|
|
@Nullable
|
|
public Vector3f color;
|
|
public float time;
|
|
public boolean fade;
|
|
@Nullable
|
|
public float[] frustumProjection;
|
|
|
|
@Override
|
|
public int getId() {
|
|
return 114;
|
|
}
|
|
|
|
public DisplayDebug() {
|
|
}
|
|
|
|
public DisplayDebug(
|
|
@Nonnull DebugShape shape, @Nullable float[] matrix, @Nullable Vector3f color, float time, boolean fade, @Nullable float[] frustumProjection
|
|
) {
|
|
this.shape = shape;
|
|
this.matrix = matrix;
|
|
this.color = color;
|
|
this.time = time;
|
|
this.fade = fade;
|
|
this.frustumProjection = frustumProjection;
|
|
}
|
|
|
|
public DisplayDebug(@Nonnull DisplayDebug other) {
|
|
this.shape = other.shape;
|
|
this.matrix = other.matrix;
|
|
this.color = other.color;
|
|
this.time = other.time;
|
|
this.fade = other.fade;
|
|
this.frustumProjection = other.frustumProjection;
|
|
}
|
|
|
|
@Nonnull
|
|
public static DisplayDebug deserialize(@Nonnull ByteBuf buf, int offset) {
|
|
DisplayDebug obj = new DisplayDebug();
|
|
byte nullBits = buf.getByte(offset);
|
|
obj.shape = DebugShape.fromValue(buf.getByte(offset + 1));
|
|
if ((nullBits & 2) != 0) {
|
|
obj.color = Vector3f.deserialize(buf, offset + 2);
|
|
}
|
|
|
|
obj.time = buf.getFloatLE(offset + 14);
|
|
obj.fade = buf.getByte(offset + 18) != 0;
|
|
if ((nullBits & 1) != 0) {
|
|
int varPos0 = offset + 27 + buf.getIntLE(offset + 19);
|
|
int matrixCount = VarInt.peek(buf, varPos0);
|
|
if (matrixCount < 0) {
|
|
throw ProtocolException.negativeLength("Matrix", matrixCount);
|
|
}
|
|
|
|
if (matrixCount > 4096000) {
|
|
throw ProtocolException.arrayTooLong("Matrix", matrixCount, 4096000);
|
|
}
|
|
|
|
int varIntLen = VarInt.length(buf, varPos0);
|
|
if (varPos0 + varIntLen + matrixCount * 4L > buf.readableBytes()) {
|
|
throw ProtocolException.bufferTooSmall("Matrix", varPos0 + varIntLen + matrixCount * 4, buf.readableBytes());
|
|
}
|
|
|
|
obj.matrix = new float[matrixCount];
|
|
|
|
for (int i = 0; i < matrixCount; i++) {
|
|
obj.matrix[i] = buf.getFloatLE(varPos0 + varIntLen + i * 4);
|
|
}
|
|
}
|
|
|
|
if ((nullBits & 4) != 0) {
|
|
int varPos1 = offset + 27 + buf.getIntLE(offset + 23);
|
|
int frustumProjectionCount = VarInt.peek(buf, varPos1);
|
|
if (frustumProjectionCount < 0) {
|
|
throw ProtocolException.negativeLength("FrustumProjection", frustumProjectionCount);
|
|
}
|
|
|
|
if (frustumProjectionCount > 4096000) {
|
|
throw ProtocolException.arrayTooLong("FrustumProjection", frustumProjectionCount, 4096000);
|
|
}
|
|
|
|
int varIntLen = VarInt.length(buf, varPos1);
|
|
if (varPos1 + varIntLen + frustumProjectionCount * 4L > buf.readableBytes()) {
|
|
throw ProtocolException.bufferTooSmall("FrustumProjection", varPos1 + varIntLen + frustumProjectionCount * 4, buf.readableBytes());
|
|
}
|
|
|
|
obj.frustumProjection = new float[frustumProjectionCount];
|
|
|
|
for (int i = 0; i < frustumProjectionCount; i++) {
|
|
obj.frustumProjection[i] = buf.getFloatLE(varPos1 + varIntLen + i * 4);
|
|
}
|
|
}
|
|
|
|
return obj;
|
|
}
|
|
|
|
public static int computeBytesConsumed(@Nonnull ByteBuf buf, int offset) {
|
|
byte nullBits = buf.getByte(offset);
|
|
int maxEnd = 27;
|
|
if ((nullBits & 1) != 0) {
|
|
int fieldOffset0 = buf.getIntLE(offset + 19);
|
|
int pos0 = offset + 27 + fieldOffset0;
|
|
int arrLen = VarInt.peek(buf, pos0);
|
|
pos0 += VarInt.length(buf, pos0) + arrLen * 4;
|
|
if (pos0 - offset > maxEnd) {
|
|
maxEnd = pos0 - offset;
|
|
}
|
|
}
|
|
|
|
if ((nullBits & 4) != 0) {
|
|
int fieldOffset1 = buf.getIntLE(offset + 23);
|
|
int pos1 = offset + 27 + fieldOffset1;
|
|
int arrLen = VarInt.peek(buf, pos1);
|
|
pos1 += VarInt.length(buf, pos1) + arrLen * 4;
|
|
if (pos1 - offset > maxEnd) {
|
|
maxEnd = pos1 - offset;
|
|
}
|
|
}
|
|
|
|
return maxEnd;
|
|
}
|
|
|
|
@Override
|
|
public void serialize(@Nonnull ByteBuf buf) {
|
|
int startPos = buf.writerIndex();
|
|
byte nullBits = 0;
|
|
if (this.matrix != null) {
|
|
nullBits = (byte)(nullBits | 1);
|
|
}
|
|
|
|
if (this.color != null) {
|
|
nullBits = (byte)(nullBits | 2);
|
|
}
|
|
|
|
if (this.frustumProjection != null) {
|
|
nullBits = (byte)(nullBits | 4);
|
|
}
|
|
|
|
buf.writeByte(nullBits);
|
|
buf.writeByte(this.shape.getValue());
|
|
if (this.color != null) {
|
|
this.color.serialize(buf);
|
|
} else {
|
|
buf.writeZero(12);
|
|
}
|
|
|
|
buf.writeFloatLE(this.time);
|
|
buf.writeByte(this.fade ? 1 : 0);
|
|
int matrixOffsetSlot = buf.writerIndex();
|
|
buf.writeIntLE(0);
|
|
int frustumProjectionOffsetSlot = buf.writerIndex();
|
|
buf.writeIntLE(0);
|
|
int varBlockStart = buf.writerIndex();
|
|
if (this.matrix != null) {
|
|
buf.setIntLE(matrixOffsetSlot, buf.writerIndex() - varBlockStart);
|
|
if (this.matrix.length > 4096000) {
|
|
throw ProtocolException.arrayTooLong("Matrix", this.matrix.length, 4096000);
|
|
}
|
|
|
|
VarInt.write(buf, this.matrix.length);
|
|
|
|
for (float item : this.matrix) {
|
|
buf.writeFloatLE(item);
|
|
}
|
|
} else {
|
|
buf.setIntLE(matrixOffsetSlot, -1);
|
|
}
|
|
|
|
if (this.frustumProjection != null) {
|
|
buf.setIntLE(frustumProjectionOffsetSlot, buf.writerIndex() - varBlockStart);
|
|
if (this.frustumProjection.length > 4096000) {
|
|
throw ProtocolException.arrayTooLong("FrustumProjection", this.frustumProjection.length, 4096000);
|
|
}
|
|
|
|
VarInt.write(buf, this.frustumProjection.length);
|
|
|
|
for (float item : this.frustumProjection) {
|
|
buf.writeFloatLE(item);
|
|
}
|
|
} else {
|
|
buf.setIntLE(frustumProjectionOffsetSlot, -1);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public int computeSize() {
|
|
int size = 27;
|
|
if (this.matrix != null) {
|
|
size += VarInt.size(this.matrix.length) + this.matrix.length * 4;
|
|
}
|
|
|
|
if (this.frustumProjection != null) {
|
|
size += VarInt.size(this.frustumProjection.length) + this.frustumProjection.length * 4;
|
|
}
|
|
|
|
return size;
|
|
}
|
|
|
|
public static ValidationResult validateStructure(@Nonnull ByteBuf buffer, int offset) {
|
|
if (buffer.readableBytes() - offset < 27) {
|
|
return ValidationResult.error("Buffer too small: expected at least 27 bytes");
|
|
} else {
|
|
byte nullBits = buffer.getByte(offset);
|
|
if ((nullBits & 1) != 0) {
|
|
int matrixOffset = buffer.getIntLE(offset + 19);
|
|
if (matrixOffset < 0) {
|
|
return ValidationResult.error("Invalid offset for Matrix");
|
|
}
|
|
|
|
int pos = offset + 27 + matrixOffset;
|
|
if (pos >= buffer.writerIndex()) {
|
|
return ValidationResult.error("Offset out of bounds for Matrix");
|
|
}
|
|
|
|
int matrixCount = VarInt.peek(buffer, pos);
|
|
if (matrixCount < 0) {
|
|
return ValidationResult.error("Invalid array count for Matrix");
|
|
}
|
|
|
|
if (matrixCount > 4096000) {
|
|
return ValidationResult.error("Matrix exceeds max length 4096000");
|
|
}
|
|
|
|
pos += VarInt.length(buffer, pos);
|
|
pos += matrixCount * 4;
|
|
if (pos > buffer.writerIndex()) {
|
|
return ValidationResult.error("Buffer overflow reading Matrix");
|
|
}
|
|
}
|
|
|
|
if ((nullBits & 4) != 0) {
|
|
int frustumProjectionOffset = buffer.getIntLE(offset + 23);
|
|
if (frustumProjectionOffset < 0) {
|
|
return ValidationResult.error("Invalid offset for FrustumProjection");
|
|
}
|
|
|
|
int posx = offset + 27 + frustumProjectionOffset;
|
|
if (posx >= buffer.writerIndex()) {
|
|
return ValidationResult.error("Offset out of bounds for FrustumProjection");
|
|
}
|
|
|
|
int frustumProjectionCount = VarInt.peek(buffer, posx);
|
|
if (frustumProjectionCount < 0) {
|
|
return ValidationResult.error("Invalid array count for FrustumProjection");
|
|
}
|
|
|
|
if (frustumProjectionCount > 4096000) {
|
|
return ValidationResult.error("FrustumProjection exceeds max length 4096000");
|
|
}
|
|
|
|
posx += VarInt.length(buffer, posx);
|
|
posx += frustumProjectionCount * 4;
|
|
if (posx > buffer.writerIndex()) {
|
|
return ValidationResult.error("Buffer overflow reading FrustumProjection");
|
|
}
|
|
}
|
|
|
|
return ValidationResult.OK;
|
|
}
|
|
}
|
|
|
|
public DisplayDebug clone() {
|
|
DisplayDebug copy = new DisplayDebug();
|
|
copy.shape = this.shape;
|
|
copy.matrix = this.matrix != null ? Arrays.copyOf(this.matrix, this.matrix.length) : null;
|
|
copy.color = this.color != null ? this.color.clone() : null;
|
|
copy.time = this.time;
|
|
copy.fade = this.fade;
|
|
copy.frustumProjection = this.frustumProjection != null ? Arrays.copyOf(this.frustumProjection, this.frustumProjection.length) : null;
|
|
return copy;
|
|
}
|
|
|
|
@Override
|
|
public boolean equals(Object obj) {
|
|
if (this == obj) {
|
|
return true;
|
|
} else {
|
|
return !(obj instanceof DisplayDebug other)
|
|
? false
|
|
: Objects.equals(this.shape, other.shape)
|
|
&& Arrays.equals(this.matrix, other.matrix)
|
|
&& Objects.equals(this.color, other.color)
|
|
&& this.time == other.time
|
|
&& this.fade == other.fade
|
|
&& Arrays.equals(this.frustumProjection, other.frustumProjection);
|
|
}
|
|
}
|
|
|
|
@Override
|
|
public int hashCode() {
|
|
int result = 1;
|
|
result = 31 * result + Objects.hashCode(this.shape);
|
|
result = 31 * result + Arrays.hashCode(this.matrix);
|
|
result = 31 * result + Objects.hashCode(this.color);
|
|
result = 31 * result + Float.hashCode(this.time);
|
|
result = 31 * result + Boolean.hashCode(this.fade);
|
|
return 31 * result + Arrays.hashCode(this.frustumProjection);
|
|
}
|
|
}
|