prendy/dist/helpers/prendyRuleMakers/triggers.js

Make games with prerendered backdrops using babylonjs and repond

import { forEach } from "chootils/dist/loops";
import { makeEffects } from "repond";
import { meta } from "../../meta";
import { getUsefulStoryStuff } from "./prendyRuleMakers";
export function makeTriggerEffects(callbacksMap, options) {
    // TODO make dynamic rule?
    // this won't update the playerCharacter at the moment
    const { whenLeave = false } = options ?? {};
    const charactersWithTriggers = Object.keys(callbacksMap);
    return makeEffects(({ itemEffect }) => ({
        whenAtTriggersChanges: itemEffect({
            run({ newValue: atTriggers, prevValue: prevAtTriggers, itemId: characterName }) {
                const { placeInfoByName } = meta.assets;
                const usefulStoryStuff = getUsefulStoryStuff();
                const { nowPlaceName } = usefulStoryStuff;
                if (!callbacksMap[characterName]) {
                    return;
                }
                const triggerNames = placeInfoByName[nowPlaceName].triggerNames;
                forEach(triggerNames, (triggerName) => {
                    const justEntered = atTriggers[triggerName] && !prevAtTriggers[triggerName];
                    const justLeft = !atTriggers[triggerName] && prevAtTriggers[triggerName];
                    if ((whenLeave && justLeft) || (!whenLeave && justEntered)) {
                        callbacksMap[characterName]?.[nowPlaceName]?.[triggerName]?.(usefulStoryStuff);
                    }
                });
            },
            check: {
                prop: ["atTriggers"],
                type: "characters",
                id: charactersWithTriggers,
            },
            step: "collisionReaction",
        }),
    }));
}