mirror of
https://github.com/PixelGuys/Cubyz.git
synced 2025-08-03 11:17:05 -04:00
Implement some basic lossy compression for entity and item network data
progress towards #1327
This commit is contained in:
IntegratedQuantum
parent
6fc7e604e7
commit
29f06de52f
@ -18,6 +18,13 @@ const NeverFailingAllocator = main.heap.NeverFailingAllocator;
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const BinaryReader = main.utils.BinaryReader;
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pub const EntityNetworkData = struct {
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id: u32,
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pos: Vec3d,
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vel: Vec3d,
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rot: Vec3f,
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};
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pub const ClientEntity = struct {
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interpolatedValues: utils.GenericInterpolation(6) = undefined,
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_interpolationPos: [6]f64 = undefined,
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@ -228,31 +235,30 @@ pub const ClientEntityManager = struct {
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}
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}
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pub fn serverUpdate(time: i16, reader: *BinaryReader) !void {
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pub fn serverUpdate(time: i16, entityData: []EntityNetworkData) void {
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mutex.lock();
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defer mutex.unlock();
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timeDifference.addDataPoint(time);
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while(reader.remaining.len != 0) {
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const id = try reader.readInt(u32);
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for(entityData) |data| {
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const pos = [_]f64{
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try reader.readFloat(f64),
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try reader.readFloat(f64),
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try reader.readFloat(f64),
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@floatCast(try reader.readFloat(f32)),
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@floatCast(try reader.readFloat(f32)),
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@floatCast(try reader.readFloat(f32)),
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data.pos[0],
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data.pos[1],
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data.pos[2],
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@floatCast(data.rot[0]),
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@floatCast(data.rot[1]),
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@floatCast(data.rot[2]),
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};
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const vel = [_]f64{
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try reader.readFloat(f64),
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try reader.readFloat(f64),
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try reader.readFloat(f64),
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data.vel[0],
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data.vel[1],
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data.vel[2],
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0,
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0,
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0,
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};
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for(entities.items()) |*ent| {
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if(ent.id == id) {
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if(ent.id == data.id) {
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ent.updatePosition(&pos, &vel, time);
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break;
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}
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@ -35,6 +35,12 @@ const ItemDrop = struct { // MARK: ItemDrop
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reverseIndex: u16,
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};
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pub const ItemDropNetworkData = struct {
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index: u16,
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pos: Vec3d,
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vel: Vec3d,
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};
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pub const ItemDropManager = struct { // MARK: ItemDropManager
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/// Half the side length of all item entities hitboxes as a cube.
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pub const radius: f64 = 0.1;
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@ -116,14 +122,16 @@ pub const ItemDropManager = struct { // MARK: ItemDropManager
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}
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}
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pub fn getPositionAndVelocityData(self: *ItemDropManager, allocator: NeverFailingAllocator) []u8 {
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var writer = utils.BinaryWriter.initCapacity(allocator, self.size*50);
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for(self.indices[0..self.size]) |i| {
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writer.writeInt(u16, i);
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writer.writeVec(Vec3d, self.list.items(.pos)[i]);
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writer.writeVec(Vec3d, self.list.items(.vel)[i]);
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pub fn getPositionAndVelocityData(self: *ItemDropManager, allocator: NeverFailingAllocator) []ItemDropNetworkData {
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const result = allocator.alloc(ItemDropNetworkData, self.size);
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for(self.indices[0..self.size], result) |i, *res| {
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res.* = .{
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.index = i,
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.pos = self.list.items(.pos)[i],
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.vel = self.list.items(.vel)[i],
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};
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}
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return writer.data.toOwnedSlice();
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return result;
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}
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pub fn getInitialList(self: *ItemDropManager, allocator: NeverFailingAllocator) ZonElement {
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@ -458,14 +466,13 @@ pub const ClientItemDropManager = struct { // MARK: ClientItemDropManager
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self.super.deinit();
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}
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pub fn readPosition(self: *ClientItemDropManager, reader: *BinaryReader, time: i16) !void {
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pub fn readPosition(self: *ClientItemDropManager, time: i16, itemData: []ItemDropNetworkData) void {
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self.timeDifference.addDataPoint(time);
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var pos: [ItemDropManager.maxCapacity]Vec3d = undefined;
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var vel: [ItemDropManager.maxCapacity]Vec3d = undefined;
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while(reader.remaining.len != 0) {
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const i = try reader.readInt(u16);
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pos[i] = try reader.readVec(Vec3d);
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vel[i] = try reader.readVec(Vec3d);
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for(itemData) |data| {
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pos[data.index] = data.pos;
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vel[data.index] = data.vel;
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}
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mutex.lock();
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defer mutex.unlock();
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100
src/network.zig
100
src/network.zig
@ -850,35 +850,93 @@ pub const Protocols = struct {
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pub const asynchronous = false;
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const type_entity: u8 = 0;
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const type_item: u8 = 1;
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const Type = enum(u8) {
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noVelocityEntity = 0,
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f16VelocityEntity = 1,
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f32VelocityEntity = 2,
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noVelocityItem = 3,
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f16VelocityItem = 4,
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f32VelocityItem = 5,
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};
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fn receive(conn: *Connection, reader: *utils.BinaryReader) !void {
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if(conn.isServerSide()) return error.InvalidSide;
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if(conn.manager.world) |world| {
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const typ = try reader.readInt(u8);
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const time = try reader.readInt(i16);
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if(typ == type_entity) {
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try main.entity.ClientEntityManager.serverUpdate(time, reader);
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} else if(typ == type_item) {
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try world.itemDrops.readPosition(reader, time);
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const playerPos = try reader.readVec(Vec3d);
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var entityData: main.List(main.entity.EntityNetworkData) = .init(main.stackAllocator);
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defer entityData.deinit();
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var itemData: main.List(main.itemdrop.ItemDropNetworkData) = .init(main.stackAllocator);
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defer itemData.deinit();
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while(reader.remaining.len != 0) {
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const typ = try reader.readEnum(Type);
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switch(typ) {
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.noVelocityEntity, .f16VelocityEntity, .f32VelocityEntity => {
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entityData.append(.{
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.vel = switch(typ) {
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.noVelocityEntity => @splat(0),
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.f16VelocityEntity => @floatCast(try reader.readVec(@Vector(3, f16))),
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.f32VelocityEntity => @floatCast(try reader.readVec(@Vector(3, f32))),
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else => unreachable,
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},
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.id = try reader.readInt(u32),
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.pos = playerPos + try reader.readVec(Vec3f),
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.rot = try reader.readVec(Vec3f),
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});
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},
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.noVelocityItem, .f16VelocityItem, .f32VelocityItem => {
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itemData.append(.{
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.vel = switch(typ) {
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.noVelocityItem => @splat(0),
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.f16VelocityItem => @floatCast(try reader.readVec(@Vector(3, f16))),
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.f32VelocityItem => @floatCast(try reader.readVec(Vec3f)),
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else => unreachable,
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},
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.index = try reader.readInt(u16),
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.pos = playerPos + try reader.readVec(Vec3f),
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});
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},
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}
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}
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main.entity.ClientEntityManager.serverUpdate(time, entityData.items);
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world.itemDrops.readPosition(time, itemData.items);
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}
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}
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pub fn send(conn: *Connection, entityData: []const u8, itemData: []const u8) void {
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if(entityData.len != 0) {
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var writer = utils.BinaryWriter.initCapacity(main.stackAllocator, entityData.len + 3);
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defer writer.deinit();
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writer.writeInt(u8, type_entity);
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writer.writeInt(i16, @truncate(std.time.milliTimestamp()));
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writer.writeSlice(entityData);
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conn.send(.lossy, id, writer.data.items);
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}
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pub fn send(conn: *Connection, playerPos: Vec3d, entityData: []main.entity.EntityNetworkData, itemData: []main.itemdrop.ItemDropNetworkData) void {
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var writer = utils.BinaryWriter.init(main.stackAllocator);
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defer writer.deinit();
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if(itemData.len != 0) {
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var writer = utils.BinaryWriter.initCapacity(main.stackAllocator, itemData.len + 3);
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defer writer.deinit();
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writer.writeInt(u8, type_item);
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writer.writeInt(i16, @truncate(std.time.milliTimestamp()));
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writer.writeSlice(itemData);
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conn.send(.lossy, id, writer.data.items);
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writer.writeInt(i16, @truncate(std.time.milliTimestamp()));
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writer.writeVec(Vec3d, playerPos);
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for(entityData) |data| {
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const velocityMagnitudeSqr = vec.lengthSquare(data.vel);
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if(velocityMagnitudeSqr < 1e-6*1e-6) {
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writer.writeEnum(Type, .noVelocityEntity);
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} else if(velocityMagnitudeSqr > 1000*1000) {
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writer.writeEnum(Type, .f32VelocityEntity);
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writer.writeVec(Vec3f, @floatCast(data.vel));
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} else {
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writer.writeEnum(Type, .f16VelocityEntity);
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writer.writeVec(@Vector(3, f16), @floatCast(data.vel));
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}
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writer.writeInt(u32, data.id);
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writer.writeVec(Vec3f, @floatCast(data.pos - playerPos));
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writer.writeVec(Vec3f, data.rot);
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}
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for(itemData) |data| {
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const velocityMagnitudeSqr = vec.lengthSquare(data.vel);
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if(velocityMagnitudeSqr < 1e-6*1e-6) {
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writer.writeEnum(Type, .noVelocityItem);
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} else if(velocityMagnitudeSqr > 1000*1000) {
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writer.writeEnum(Type, .f32VelocityItem);
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writer.writeVec(Vec3f, @floatCast(data.vel));
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} else {
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writer.writeEnum(Type, .f16VelocityItem);
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writer.writeVec(@Vector(3, f16), @floatCast(data.vel));
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}
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writer.writeInt(u16, data.index);
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writer.writeVec(Vec3f, @floatCast(data.pos - playerPos));
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}
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conn.send(.lossy, id, writer.data.items);
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}
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};
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pub const blockUpdate = struct {
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@ -387,21 +387,23 @@ fn update() void { // MARK: update()
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}
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// Send the entity data:
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var writer = BinaryWriter.initCapacity(main.stackAllocator, (4 + 24 + 12 + 24)*userList.len);
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defer writer.deinit();
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const itemData = world.?.itemDropManager.getPositionAndVelocityData(main.stackAllocator);
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defer main.stackAllocator.free(itemData);
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var entityData: main.List(main.entity.EntityNetworkData) = .init(main.stackAllocator);
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defer entityData.deinit();
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for(userList) |user| {
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const id = user.id; // TODO
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writer.writeInt(u32, id);
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writer.writeVec(Vec3d, user.player.pos);
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writer.writeVec(Vec3f, user.player.rot);
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writer.writeVec(Vec3d, user.player.vel);
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entityData.append(.{
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.id = id,
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.pos = user.player.pos,
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.vel = user.player.vel,
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.rot = user.player.rot,
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});
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}
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for(userList) |user| {
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main.network.Protocols.entityPosition.send(user.conn, writer.data.items, itemData);
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main.network.Protocols.entityPosition.send(user.conn, user.player.pos, entityData.items, itemData);
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}
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while(userDeinitList.dequeue()) |user| {
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