76 lines
2.7 KiB
JavaScript
76 lines
2.7 KiB
JavaScript
import { GameSystemWithFilter } from "../game_system_with_filter";
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import { StorageComponent } from "../components/storage";
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import { Entity } from "../entity";
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import { DrawParameters } from "../../core/draw_parameters";
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import { formatBigNumber, lerp } from "../../core/utils";
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import { Loader } from "../../core/loader";
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export class StorageSystem extends GameSystemWithFilter {
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constructor(root) {
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super(root, [StorageComponent]);
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this.storageOverlaySprite = Loader.getSprite("sprites/misc/storage_overlay.png");
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}
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update() {
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for (let i = 0; i < this.allEntities.length; ++i) {
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const entity = this.allEntities[i];
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const storageComp = entity.components.Storage;
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// Eject from storage
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if (storageComp.storedItem && storageComp.storedCount > 0) {
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const ejectorComp = entity.components.ItemEjector;
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const nextSlot = ejectorComp.getFirstFreeSlot();
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if (nextSlot !== null) {
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if (ejectorComp.tryEject(nextSlot, storageComp.storedItem)) {
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storageComp.storedCount--;
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if (storageComp.storedCount === 0) {
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storageComp.storedItem = null;
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}
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}
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}
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}
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let targetAlpha = storageComp.storedCount > 0 ? 1 : 0;
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storageComp.overlayOpacity = lerp(storageComp.overlayOpacity, targetAlpha, 0.05);
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}
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}
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draw(parameters) {
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this.forEachMatchingEntityOnScreen(parameters, this.drawEntity.bind(this));
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}
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/**
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* @param {DrawParameters} parameters
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* @param {Entity} entity
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*/
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drawEntity(parameters, entity) {
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const context = parameters.context;
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const staticComp = entity.components.StaticMapEntity;
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if (!staticComp.shouldBeDrawn(parameters)) {
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return;
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}
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const storageComp = entity.components.Storage;
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const storedItem = storageComp.storedItem;
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if (storedItem !== null) {
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context.globalAlpha = storageComp.overlayOpacity;
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const center = staticComp.getTileSpaceBounds().getCenter().toWorldSpace();
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storedItem.draw(center.x, center.y, parameters, 30);
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this.storageOverlaySprite.drawCached(parameters, center.x - 15, center.y + 15, 30, 15);
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context.font = "bold 10px GameFont";
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context.textAlign = "center";
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context.fillStyle = "#64666e";
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context.fillText(formatBigNumber(storageComp.storedCount), center.x, center.y + 25.5);
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context.textAlign = "left";
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context.globalAlpha = 1;
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}
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}
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}
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