94 lines
3 KiB
TypeScript
94 lines
3 KiB
TypeScript
import { mts } from "../../common/mod.ts";
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import { range } from "../../common/utils.ts";
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import { log_from, v2, Vec2 } from "../../common/utils.ts";
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import { CompDisplay } from "../components/display.ts";
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import { sys_find_free_pos } from "../components/world.ts";
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import { CompPos, query_in_rect } from "../components/world.ts";
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import { Engine, Entity } from "../engine.ts";
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import { ClientInterface } from "../network.ts";
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const log = log_from(import.meta);
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export class Session {
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client;
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engine;
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entity;
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constructor(client: ClientInterface, engine: Engine, entity: Entity) {
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this.client = client;
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this.engine = engine;
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this.entity = entity;
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}
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static init(client: ClientInterface, engine: Engine) {
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const spawn_pos = engine.run(sys_find_free_pos(v2(0, 0)));
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const entity = engine.run(sys_spawn_player(spawn_pos));
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const self = new Session(client, engine, entity);
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return self;
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}
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async start() {
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try {
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for await (const input of this.client.inputs.iter()) {
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if (input.kind !== "request_display") log("Received", input);
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if (input.kind === "ping") this.client.outputs.send({ kind: "ping_response", content: input.content });
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if (input.kind === "request_display") this.send_display(input.content.width, input.content.height);
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if (input.kind === "input") this.handle_input(input);
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if (input.kind === "exit") this.engine.delete(this.entity.identifier);
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}
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} catch (error) {
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console.error("Session loop failed, ", error);
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this.engine.delete(this.entity.identifier);
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}
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}
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handle_input(input: mts.MsgInput) {
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if (input.content.control === "up") this.move(v2(0, 1));
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if (input.content.control === "down") this.move(v2(0, -1));
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if (input.content.control === "left") this.move(v2(-1, 0));
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if (input.content.control === "right") this.move(v2(1, 0));
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}
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send_display(width: number, height: number) {
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const raw = this.engine.run(sys_render_world(this.entity.get_force(CompPos).position, v2(width, height)));
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this.client.outputs.send({ kind: "display", content: { raw } });
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}
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move(direction: Vec2) {
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const pos = this.entity.get_force(CompPos);
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pos.move_collide(this.engine, direction);
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}
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}
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export function sys_render_world(center: Vec2, size: Vec2) {
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return (engine: Engine) => {
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const radius = size.scale(0.5);
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const result = Array.from(range(0, size.y())).map(() => Array.from(range(0, size.x())).map(() => " "));
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const min = center.sub(radius);
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const max = center.add(radius);
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for (const entity of engine.query_all(query_in_rect(min, max).with(CompDisplay))) {
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const local_pos = entity.get_force(CompPos).position.sub(min);
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result[local_pos.y()][local_pos.x()] = entity.get_force(CompDisplay).display;
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}
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return result.map((line) => line.join("")).toReversed().join("\n");
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};
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}
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export function sys_spawn_player(position: Vec2) {
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return (engine: Engine) => {
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return engine.spawn((entity) =>
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entity.insert(
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new CompPlayer(),
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new CompPos(entity, position),
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new CompDisplay("`/"),
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)
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);
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};
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}
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class CompPlayer {
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life;
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constructor() {
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this.life = 10;
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}
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}
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