53 lines
1.4 KiB
TypeScript
53 lines
1.4 KiB
TypeScript
import type { TextDisplay } from "@common/display/text";
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import { Drawable } from "./drawable";
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import type { IRegion, ISpriteDefinition } from "./types";
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export class Figure extends Drawable {
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private frames: IRegion[];
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private animationCounter = 0;
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private animationPeriod;
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constructor(
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display: TextDisplay,
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public x: number,
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public y: number,
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definition: ISpriteDefinition,
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public frame: number = 0,
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) {
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super(display);
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this.x = x | 0;
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this.y = y | 0;
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this.frames = definition.frames;
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this.animationCounter = 0;
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this.animationPeriod = definition.animationPeriod ?? Number.POSITIVE_INFINITY;
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}
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override doDraw() {
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this.animationCounter++;
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if (this.animationCounter >= this.animationPeriod) {
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this.animationCounter = 0;
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this.frame = (this.frame + 1) % this.numFrames;
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}
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this.display.setRegion(this.x, this.y, this.width, this.height, this.image);
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}
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get width() {
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const frame = this.frames[(this.frame % this.numFrames)];
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const line = frame[0];
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return line?.length ?? 0;
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}
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get height() {
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const frame = this.frames[(this.frame % this.numFrames)];
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return frame.length;
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}
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get numFrames() {
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return this.frames.length;
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}
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get image() {
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return this.frames[(this.frame % this.numFrames)];
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}
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} |