123 lines
4.0 KiB
TypeScript
123 lines
4.0 KiB
TypeScript
import { System } from "$/common/ecs/mod.ts";
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import { Position } from "$/common/components/position.ts";
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import { ClientWorld } from "../client_world.ts";
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import { Camera } from "../components/camera.ts";
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import { Container, ItemStack } from "$/common/inventory.ts";
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import { PlayerComponent } from "../player.ts";
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import { GuiContainer } from "../gui/gui_container.ts";
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import { show_fatal_error } from "../fatal.ts";
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const MOVE_SEND_INTERVAL = 1 / 10;
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const REMOTE_PLAYER_SMOOTHING = 12;
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export class NetworkSystem extends System {
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move_timer = 0;
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update(world: ClientWorld, delta: number): void {
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const connection = world.connection;
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const [local_player] = world.get_tag("player")!;
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const player_component = local_player.get(PlayerComponent)!;
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const inventories = player_component.inventories;
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for (const message of connection.incoming) {
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switch (message.type) {
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case "player_join":
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connection.add_player(message.player);
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break;
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case "player_leave":
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connection.players.delete(message.id);
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break;
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case "player_move": {
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const player = connection.players.get(message.id);
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if (player) {
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player.x = message.x;
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player.y = message.y;
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player.z = message.z;
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player.yaw = message.yaw;
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player.pitch = message.pitch;
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}
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break;
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}
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case "set_block":
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world.dimension.record_change(message.x, message.y, message.z, message.id, message.state);
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world.dimension.apply_change(message.x, message.y, message.z, message.id, message.state);
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break;
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case "chat":
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world.add_chat(message.from ? `<${message.from}> ${message.text}` : message.text);
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break;
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case "container": {
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let container = message.container === "screen"
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? inventories.screen
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: inventories[message.container];
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if (message.container === "screen" && container?.size !== message.items.length) {
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container = inventories.screen = new Container(message.items.length);
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}
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container?.load(message.items);
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break;
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}
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case "cursor":
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inventories.cursor.item = message.item ? ItemStack.from_data(message.item) : undefined;
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break;
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case "open_screen": {
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// replace anything open locally without telling the server, it just opened this one
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player_component.screens.length = 0;
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const size = Math.max(0, ...message.layout.slots.map((slot) => slot.index + 1));
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inventories.screen = new Container(size);
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player_component.screens.push(
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new GuiContainer(inventories, (m) => connection.send(m), message.layout, message.properties),
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);
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break;
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}
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case "screen_properties": {
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const screen = player_component.screens.at(-1);
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if (screen instanceof GuiContainer) {
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screen.properties = message.properties;
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}
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break;
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}
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case "teleport": {
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const position = local_player.get(Position)!;
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position.x = message.x;
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position.y = message.y;
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position.z = message.z;
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break;
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}
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case "close_screen":
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// closed by the server (the block broke), it already put everything back
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player_component.screens = player_component.screens.filter((s) => !(s instanceof GuiContainer));
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inventories.screen = undefined;
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break;
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}
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}
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connection.incoming.length = 0;
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if (connection.closed) {
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show_fatal_error("Lost connection to the server");
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return;
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}
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const t = Math.min(1, delta * REMOTE_PLAYER_SMOOTHING);
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for (const player of connection.players.values()) {
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player.display_x += (player.x - player.display_x) * t;
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player.display_y += (player.y - player.display_y) * t;
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player.display_z += (player.z - player.display_z) * t;
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}
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this.move_timer += delta;
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if (this.move_timer >= MOVE_SEND_INTERVAL) {
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this.move_timer = 0;
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const [player] = world.get_tag("player")!;
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const position = player.get(Position)!;
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const camera = player.get(Camera)!;
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connection.send({
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type: "move",
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x: position.x,
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y: position.y,
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z: position.z,
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yaw: camera.yaw,
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pitch: camera.pitch,
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});
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}
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}
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}
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