import { CpNode } from "../cp-node.js";


/**
 * Returns the number of contact points on the maximal disk circle implied
 * by this `CpNode`. 
 * 
 * Note, however, that even one-prongs and sharp corners will return 2 (see
 * `isTerminating` for more details); if this is not desired use 
 * `getRealProngCount` instead which will return 1 in these cases.
 */
function getProngCount(cpNode: CpNode) {
    const startCpNode = cpNode;
    let cpNode_ = startCpNode;

    let i = 0;
    do {
        i++;
        cpNode_ = cpNode_.nextOnCircle;
    } while (cpNode_ !== startCpNode)

    return i;
}


export { getProngCount }