89 lines
2.5 KiB
JavaScript
89 lines
2.5 KiB
JavaScript
import {Container} from '@pixi/react';
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import {useEffect, useState} from 'react';
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import {RESOLUTION} from '@/constants.js';
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import {useEcs} from '@/context/ecs.js';
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import {useMainEntity} from '@/context/main-entity.js';
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import usePacket from '@/hooks/use-packet.js';
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import Entities from './entities.jsx';
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import TargetingGhost from './targeting-ghost.jsx';
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import TargetingGrid from './targeting-grid.jsx';
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import TileLayer from './tile-layer.jsx';
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function entityActiveItem(entity) {
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const {Inventory, Wielder} = entity;
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return Inventory.item(Wielder.activeSlot + 1);
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}
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export default function EcsComponent() {
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const [ecs] = useEcs();
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const [entities, setEntities] = useState({});
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const [activeItem, setActiveItem] = useState(false);
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const [activeTool, setActiveTool] = useState(false);
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const [mainEntity] = useMainEntity();
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useEffect(() => {
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if (mainEntity) {
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setActiveItem(entityActiveItem(ecs.get(mainEntity)));
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}
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}, [ecs, mainEntity]);
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useEffect(() => {
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if (!activeItem) {
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setActiveTool(undefined);
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return;
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}
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fetch([activeItem.source, 'item.json'].join('/'))
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.then((response) => (response.ok ? response.json() : {}))
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.then(({tool}) => {
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setActiveTool(tool);
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});
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}, [activeItem]);
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usePacket('Tick', (payload) => {
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if (0 === Object.keys(payload.ecs).length) {
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return;
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}
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if (
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mainEntity
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&& payload.ecs[mainEntity]
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&& (payload.ecs[mainEntity].Inventory || payload.ecs[mainEntity].Wielder)
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) {
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setActiveItem(entityActiveItem(ecs.get(mainEntity)));
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}
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const updatedEntities = {...entities};
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for (const id in payload.ecs) {
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if (false === payload.ecs[id]) {
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delete updatedEntities[id];
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}
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else {
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updatedEntities[id] = ecs.get(id);
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}
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}
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setEntities(updatedEntities);
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}, [ecs, entities, mainEntity]);
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if (!mainEntity) {
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return false;
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}
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const entity = ecs.get(mainEntity);
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const {Camera} = entity;
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const {TileLayers} = ecs.get(1);
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const [cx, cy] = [
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Math.round(Camera.x - RESOLUTION.x / 2),
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Math.round(Camera.y - RESOLUTION.y / 2),
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];
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return (
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<Container
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x={-cx}
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y={-cy}
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>
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<TileLayer tileLayer={TileLayers.layers[0]} />
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{activeTool && (
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<TargetingGrid entity={entity} />
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)}
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<Entities entities={entities} />
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{activeTool && (
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<TargetingGhost entity={entity} projection={activeTool.projection} />
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)}
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</Container>
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)
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}
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