textui/src/demo.ts

import { UIConfig } from "./config.ts";
import { createTextUI, UI_DISPLAY_TYPES } from "./main.ts";

export async function runUIDemo(
  display_type: keyof typeof UI_DISPLAY_TYPES = "autodetect",
): Promise<void> {
  let x = 0;
  const config: Partial<UIConfig> = {
    palette: [
      { r: 0, g: 0, b: 0 },
      { r: 1, g: 1, b: 1 },
      { r: 0, g: 1, b: 1 },
    ],
    onResize: draw,
    onKeyStroke: (key) => {
      ui.drawing.color(1, 0).text(key, { x, y: 7 });
      x += key.length + 1;
    },
    onMouseClick: (loc) => {
      const text = `${loc.x}:${loc.y}`;
      ui.drawing.color(1, 0).text(text, { x, y: 7 });
      x += text.length + 1;
    },
  };
  const ui = await createTextUI(config, display_type);
  await ui.init();
  draw();
  await ui.loop();

  function draw() {
    ui.drawing.color(2, 0).text("hello", { x: 10, y: 3 });
    ui.drawing.color(0, 1).text("world", { x: 10, y: 5 });
  }
}