lingo3d/lib/engine/raycast/raycastCurve.js

Lingo3D is a React/Vue 3d game development framework that ships with a complete visual editor

import { createEffect } from "@lincode/reactivity";
import { getEditorModeComputed } from "../../states/useEditorModeComputed";
import { clearMultipleSelectionTargets } from "../../states/useMultipleSelectionTargets";
import { setSelectionTarget } from "../../states/useSelectionTarget";
import { onMouseClick } from "../../events/onMouseClick";
import { getSelectionFocus, setSelectionFocus } from "../../states/useSelectionFocus";
import { selectionTargetPtr } from "../../pointers/selectionTargetPtr";
import Curve from "../../display/Curve";
import { onAfterRender } from "../../events/onAfterRender";
import { onBeforeRender } from "../../events/onBeforeRender";
createEffect(() => {
    if (getEditorModeComputed() !== "curve")
        return;
    clearMultipleSelectionTargets();
    setSelectionTarget(undefined);
    const curve = new Curve();
    curve.helper = true;
    const prevSelectionFocus = getSelectionFocus();
    setSelectionFocus(curve);
    const handle = onMouseClick((e) => {
        onAfterRender(() => onBeforeRender(() => !handle.done &&
            !selectionTargetPtr[0] &&
            curve.addPoint(e.point), true), true);
    });
    return () => {
        curve.helper = false;
        curve.points.length < 2 && curve.dispose();
        setSelectionFocus(prevSelectionFocus);
        handle.cancel();
    };
}, [getEditorModeComputed]);
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