@logic-pad/core/dist/data/solver/z3/modules/regionAreaModule.js

import Z3Module from './z3Module.js';
import { instance as regionAreaInstance, } from '../../../rules/regionAreaRule.js';
export default class RegionAreaModule extends Z3Module {
    constructor() {
        super(...arguments);
        Object.defineProperty(this, "id", {
            enumerable: true,
            configurable: true,
            writable: true,
            value: regionAreaInstance.id
        });
    }
    encode(grid, ctx) {
        const rules = grid.rules.filter(rule => rule.id === this.id);
        // optimizations
        if (rules.length === 0) {
            return;
        }
        const colorMap = new Map();
        for (const rule of rules) {
            if (colorMap.has(rule.color)) {
                if (colorMap.get(rule.color) !== rule.size) {
                    ctx.solver.add(ctx.ctx.Bool.val(false));
                    return;
                }
            }
            else {
                colorMap.set(rule.color, rule.size);
            }
        }
        for (const [color, count] of colorMap.entries()) {
            if (count < 0 || count > grid.getColorCount(color).max) {
                ctx.solver.add(ctx.ctx.Bool.val(false));
                return;
            }
        }
        // encode for real
        const rc = ctx.regionConstrainer;
        for (const [color, count] of colorMap.entries()) {
            for (const [p, cell] of ctx.grid.grid.entries()) {
                ctx.solver.add(cell
                    .eq(ctx.symbolSet.indices[color])
                    .implies(rc.regionSizeGrid.get(p).eq(count)));
            }
        }
    }
}
export const instance = new RegionAreaModule();