107 lines
2.1 KiB
JavaScript
107 lines
2.1 KiB
JavaScript
import { Pointer } from './pointer.js';
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export class Scene {
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#canvas;
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#context;
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#layers;
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constructor(canvas, context, width, height) {
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this.#canvas = canvas;
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this.#context = context;
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this.#layers = Array();
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this.setScreenSize(width, height);
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}
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run() {
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this.#update();
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this.#draw();
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}
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#update() {
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// read layers & draw items
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this.#layers.forEach((layer) => {
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layer.objects().forEach((item) => {
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if (typeof item.ticker == 'function') {
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item.ticker();
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}
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});
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});
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}
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#draw() {
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// read layers & draw items
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this.#layers.forEach((layer) => {
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layer.objects().forEach((item) => {
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switch (item.constructor.name) {
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case 'Rect':
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this.#drawRect(item.x, item.y, item.width, item.height, item.fillColor);
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break;
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case 'StrokeRect':
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this.#drawStrokeRect(
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item.x,
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item.y,
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item.width,
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item.height,
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item.fillColor,
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item.strokeColor,
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item.strokeWidth
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);
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break;
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default:
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console.log(`⛔ Error display '${item.constructor.name}' object.`);
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}
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});
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});
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}
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#drawRect(x, y, w, h, fillColor) {
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this.#context.fillStyle = fillColor;
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this.#context.fillRect(x, y, w, h);
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}
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#drawStrokeRect(x, y, w, h, fillColor, strokeColor, strokeWidth) {
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this.#drawRect(x, y, w, h, fillColor);
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this.#context.lineWidth = strokeWidth;
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this.#context.strokeStyle = strokeColor;
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this.#context.strokeRect(x, y, w, h);
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}
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addLayer(layer) {
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this.#layers.push(layer);
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}
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removeLayers() {
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this.#layers = Array();
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}
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setScreenSize(w, h) {
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this.#canvas.width = w;
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this.#canvas.height = h;
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}
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}
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export class SceneLayer {
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#objects;
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constructor(name, objects = Array()) {
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// TODO: check types
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this.#objects = Array();
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objects.forEach((object) => {
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this.#objects.push(object);
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});
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}
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add(object) {
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this.#objects.push(object);
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}
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objects() {
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return this.#objects;
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}
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}
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