108 lines
3.0 KiB
JavaScript
108 lines
3.0 KiB
JavaScript
import Component from '@/ecs/component.js';
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import vector2d from './helpers/vector-2d';
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export default class TileLayers extends Component {
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insertMany(entities) {
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for (const [id, {layerChange}] of entities) {
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if (layerChange) {
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const component = this.get(id);
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const {layers} = component;
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for (const layerIndex in layerChange) {
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for (const calculated in layerChange[layerIndex]) {
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const tile = layerChange[layerIndex][calculated];
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layers[layerIndex].data[calculated] = tile;
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}
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layers[layerIndex] = {...layers[layerIndex]};
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}
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}
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}
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return super.insertMany(entities);
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}
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mergeDiff(original, update) {
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if (!update.layerChange) {
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return super.mergeDiff(original, update);
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}
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const layerChange = {
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...original.layerChange,
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};
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for (const index in update.layerChange) {
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layerChange[index] = {
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...layerChange[index],
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...update.layerChange[index],
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};
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}
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return {layerChange};
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}
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instanceFromSchema() {
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const Instance = super.instanceFromSchema();
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const Component = this;
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Instance.prototype.layer = function (index) {
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const {layers} = this;
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if (!(index in layers)) {
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return undefined;
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}
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const instance = this;
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class LayerProxy {
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constructor(layer) {
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this.layer = layer;
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}
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get area() {
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return this.layer.area;
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}
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get source() {
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return this.layer.source;
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}
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stamp(at, data) {
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const changes = {};
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for (const row in data) {
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const columns = data[row];
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for (const column in columns) {
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const tile = columns[column];
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const x = at.x + parseInt(column);
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const y = at.y + parseInt(row);
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if (x < 0 || y < 0 || x >= this.layer.area.x || y >= this.layer.area.y) {
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continue;
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}
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const calculated = y * this.layer.area.x + x;
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this.layer.data[calculated] = tile;
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changes[calculated] = tile;
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}
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}
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Component.markChange(instance.entity, 'layerChange', {[index]: changes});
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}
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tile({x, y}) {
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if (x < 0 || y < 0 || x >= this.layer.area.x || y >= this.layer.area.y) {
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return undefined;
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}
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return this.layer.data[y * this.layer.area.x + x];
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}
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get tileSize() {
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return this.layer.tileSize;
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}
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}
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return new LayerProxy(layers[index]);
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};
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return Instance;
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}
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static properties = {
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layers: {
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type: 'array',
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subtype: {
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type: 'object',
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properties: {
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area: vector2d('float32'),
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data: {
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type: 'array',
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subtype: {
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type: 'uint16',
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},
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},
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source: {type: 'string'},
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tileSize: vector2d('float32'),
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},
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},
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},
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};
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}
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