80 lines
1.5 KiB
JavaScript
80 lines
1.5 KiB
JavaScript
import {compose, Property} from '@avocado/core';
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import {StateProperty, Trait} from '@avocado/entity';
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import {Vector} from '@avocado/math';
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const decorate = compose(
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StateProperty('tileIndex', {
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track: true,
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}),
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);
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export class TileEntity extends decorate(Trait) {
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static defaultState() {
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return {
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tileIndex: 0,
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};
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}
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static type() {
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return 'tile-entity';
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}
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destroy() {
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this.removeTileEntity(this.entity.tileIndex);
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}
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addTileEntity(tileIndex) {
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const layer = this.entity.layer;
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if (!layer) {
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return;
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}
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layer.addTileEntity(this.entity, tileIndex);
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}
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removeTileEntity(tileIndex) {
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const layer = this.entity.layer;
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if (!layer) {
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return;
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}
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layer.removeTileEntity(this.entity, tileIndex);
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}
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setTileIndex() {
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if (!this.entity.layer) {
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return;
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}
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this.entity.tileIndex = this.entity.layer.indexAt(
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Vector.floor(this.entity.tile)
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);
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}
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listeners() {
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return {
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addedToLayer: (layer) => {
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this.setTileIndex();
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},
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removedFromLayer: (layer) => {
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layer.removeTileEntity(this.entity, Vector.floor(this.entity.tile));
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},
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tileChanged: () => {
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this.setTileIndex();
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},
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tileIndexChanged: (oldTileIndex, newTileIndex) => {
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this.removeTileEntity(oldTileIndex);
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this.addTileEntity(newTileIndex);
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},
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traitAdded: (type) => {
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this.setTileIndex();
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},
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};
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}
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}
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