216 lines
4.5 KiB
JavaScript
216 lines
4.5 KiB
JavaScript
import * as I from 'immutable';
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import {compose, Property} from '@avocado/core';
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import {StateProperty, Trait} from '@avocado/entity';
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import {Rectangle, Vector} from '@avocado/math';
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import {Container} from '../container';
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import {hasGraphics} from '../has-graphics';
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const AUTO_ZINDEX = 1 << 16;
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const decorate = compose(
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StateProperty('isVisible', {
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track: true,
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}),
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Property('visibleBoundingBox', {
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default: [0, 0, 0, 0],
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emit: function (...args) {
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this.entity.emit(...args);
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},
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track: true,
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}),
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StateProperty('opacity', {
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track: true,
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}),
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StateProperty('visibleScale', {
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track: true,
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}),
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StateProperty('zIndex', {
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track: true,
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}),
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);
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export class Visible extends decorate(Trait) {
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static defaultParams() {
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return {
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filter: undefined,
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trackPosition: true,
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};
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}
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static defaultState() {
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return {
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isVisible: true,
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opacity: 1,
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visibleScale: [1, 1],
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zIndex: AUTO_ZINDEX,
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};
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}
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initialize() {
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if (hasGraphics) {
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this._container = new Container();
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const filter = this.params.get('filter');
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if (filter) {
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this._container.setFilter(filter);
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}
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this._container.isVisible = this.entity.isVisible;
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}
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this.scheduledBoundingBoxUpdate = true;
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this.trackPosition = this.params.get('trackPosition');
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this.onZIndexChanged();
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}
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destroy() {
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if (this._container) {
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this._container.destroy();
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}
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}
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get container() {
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return this._container;
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}
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onZIndexChanged() {
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const zIndex = this.entity.zIndex;
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this._usingAutoZIndex = AUTO_ZINDEX === zIndex;
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if (!this._usingAutoZIndex) {
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if (this._container) {
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this._container.zIndex = zIndex;
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}
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}
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}
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get rawVisibleScale() {
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const scale = this.entity.visibleScale;
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return [scale.get(0), scale.get(1)];
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}
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set rawVisibleScale(scale) {
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this.entity.visibleScale = I.List(scale);
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}
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shouldSynchronizePosition() {
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if (!this._container) {
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return false;
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}
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return this._container && this.trackPosition;
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}
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synchronizePosition() {
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if (!this.entity.is('positioned')) {
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return;
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}
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if (!this._container) {
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return;
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}
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this._container.position = this.entity.position;
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if (this._usingAutoZIndex) {
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if (this._container) {
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this._container.zIndex = this.entity.y;
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}
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}
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}
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get visibleScaleX() {
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return this.entity.visibleScale.get(0);
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}
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set visibleScaleX(x) {
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this.rawVisibleScale = [x, this.visibleScaleY];
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}
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get visibleScaleY() {
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return this.entity.visibleScale.get(1);
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}
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set visibleScaleY(y) {
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this.rawVisibleScale = [this.visibleScaleX, y];
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}
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listeners() {
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const listeners = {
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isVisibleChanged: () => {
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if (!this._container) {
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return;
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}
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this._container.visible = this.entity.isVisible;
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},
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opacityChanged: () => {
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if (!this._container) {
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return;
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}
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this._container.alpha = this.entity.opacity;
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},
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positionChanged: () => {
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this.scheduledBoundingBoxUpdate = true;
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},
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zIndexChanged: () => {
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this.onZIndexChanged();
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},
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};
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if (this.shouldSynchronizePosition()) {
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listeners.traitAdded = (type) => {
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if (-1 === [
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'visible',
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'positioned',
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].indexOf(type)) {
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return;
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}
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this.synchronizePosition();
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};
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}
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return listeners;
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}
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methods() {
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return {
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updateVisibleBoundingBox: () => {
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this.scheduledBoundingBoxUpdate = true;
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},
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}
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}
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renderTick(elapsed) {
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if (this.shouldSynchronizePosition()) {
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this.synchronizePosition();
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}
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}
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tick(elapsed) {
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if (AVOCADO_SERVER) {
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if (this.scheduledBoundingBoxUpdate) {
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// Collect all bounding boxes.
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const visibleBoundingBoxes = this.entity.invokeHookFlat(
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'visibleBoundingBoxes'
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);
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if (0 === visibleBoundingBoxes.length) {
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this.visibleBoundingBox = [0, 0, 0, 0];
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}
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else {
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let unifiedBoundingBox = [0, 0, 0, 0];
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for (let i = 0; i < visibleBoundingBoxes.length; ++i) {
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const visibleBoundingBox = visibleBoundingBoxes[i];
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unifiedBoundingBox = Rectangle.united(
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unifiedBoundingBox,
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visibleBoundingBox,
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);
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}
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this.visibleBoundingBox = unifiedBoundingBox;
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this.scheduledBoundingBoxUpdate = false;
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}
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}
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}
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}
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}
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