39 lines
867 B
TypeScript
39 lines
867 B
TypeScript
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import { BufferDrawing, CharBuffer } from "./base.ts";
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import { Display } from "./display.ts";
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/**
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* Common abstraction for a textual UI
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*/
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export class TextUI {
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private screen = new CharBuffer({ w: 1, h: 1 });
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constructor(private display: Display) {
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}
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get drawing(): BufferDrawing {
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return new BufferDrawing(this.screen);
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}
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/**
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* Initializes the display
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*/
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async init(): Promise<void> {
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var size = await this.display.getSize();
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this.screen = new CharBuffer(size);
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await this.display.clear();
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}
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/**
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* Flush the internal buffer to the display
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*/
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async flush(): Promise<void> {
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// TODO only dirty chars
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const { w, h } = this.screen.getSize();
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for (let x = 0; x < w; x++) {
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for (let y = 0; y < h; y++) {
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await this.display.setChar({ x, y }, this.screen.get({ x, y }));
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}
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}
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}
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}
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