foundry/Data/modules/z-scatter/module/snap.js

import { getSetting } from './settings.js';
const rad = Math.PI * 2, baseRotation = Math.PI / 4;
function repositionToken(token, rotation, offset, pos = 0) {
    const size = token.scene.dimensions.size, x = Math.sin(rotation * pos + baseRotation) * offset * token.document.width * size, y = Math.cos(rotation * pos + baseRotation) * offset * token.document.height * size;
    token.border.x = token.document.x - x;
    token.border.y = token.document.y - y;
    token.hitArea.x = -x;
    token.hitArea.y = -y;
    const gridOffset = size / 2;
    token.mesh.x = token.border.x + gridOffset * token.document.width;
    token.mesh.y = token.border.y + gridOffset * token.document.height;
}
let SNAPPED_TOKENS = [];
function findGroup(token) {
    for (const group of SNAPPED_TOKENS) {
        for (const t of group) {
            if (token === t)
                return group;
        }
    }
}
function sameGroup(oldGroup, newGroup) {
    if (oldGroup.length !== newGroup.length)
        return false;
    for (const t of oldGroup) {
        if (!newGroup.includes(t))
            return false;
    }
    return true;
}
export function refreshAll(groups = SNAPPED_TOKENS) {
    for (const t of SNAPPED_TOKENS.flat()) {
        t.object?.refresh();
    }
}
function snapToken(token, options) {
    if (token.isAnimating)
        return;
    if (!getSetting('snapTokens')) {
        token.hitArea.x = 0;
        token.hitArea.y = 0;
        return;
    }
    const oldGroup = findGroup(token.document);
    const x = token.document.x, y = token.document.y, height = token.document.height, width = token.document.width;
    const ignoreDead = getSetting('ignoreDead');
    const tokens = token.scene.tokens.contents.filter((token) => !token.object?.destroyed &&
        token.object.x === x &&
        token.object.y === y &&
        token.height === height &&
        token.width === width &&
        !(ignoreDead && checkStatus(token, ['dead', 'dying', 'unconscious'])) &&
        token.object.visible);
    if (tokens.length < 2) {
        token.hitArea.x = 0;
        token.hitArea.y = 0;
        if (oldGroup) {
            if (oldGroup.length > 1) {
                const idx = oldGroup.indexOf(token.document);
                oldGroup.splice(idx, 1);
                refreshAll(oldGroup);
            }
            else {
                const idx = SNAPPED_TOKENS.indexOf(oldGroup);
                SNAPPED_TOKENS.splice(idx, 1);
            }
        }
        return;
    }
    if (oldGroup && !sameGroup(oldGroup, tokens)) {
        const idx = oldGroup.indexOf(token.document);
        oldGroup.splice(idx, 1);
        if (oldGroup.length)
            refreshAll(oldGroup);
        else {
            const idx = SNAPPED_TOKENS.indexOf(oldGroup);
            SNAPPED_TOKENS.splice(idx, 1);
        }
    }
    const newGroup = findGroup(tokens.find((t) => t !== token.document));
    if (newGroup) {
        const idx = SNAPPED_TOKENS.indexOf(newGroup);
        SNAPPED_TOKENS.splice(idx, 1);
    }
    SNAPPED_TOKENS.push(tokens);
    const angle = rad / tokens.length;
    const offset = getSetting('scatter');
    for (let i = 0; i < tokens.length; i++)
        repositionToken(tokens[i].object, angle, offset, i);
}
function checkStatus(token, status) {
    return status.some((s) => token.hasStatusEffect(s));
}
Hooks.on('refreshToken', snapToken);
Hooks.on('canvasTearDown', () => (SNAPPED_TOKENS = []));