51 lines
1.1 KiB
JavaScript
51 lines
1.1 KiB
JavaScript
import * as CellSet from Geometry.CellSet;
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import * as Strategy from Solver.Strategy;
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import * as State from Solver.State;
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import {diagonal, getColumn, getRow, plus} from Geometry.Vector;
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return {
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find: find,
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getRange: getRange
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};
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function find(solvingState) {
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return Strategy.tryEach(
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State.zoneNames(solvingState).map(function(name) {
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return Strategy.map(
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stepOfCell(solvingState, name),
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Strategy.tryEach(solvingState.zones[name].map(getSingleCellIn))
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);
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})
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);
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}
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function getSingleCellIn(cellSet) {
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return function() {
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if(cellSet.size() == 1) {
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return cellSet.toList()[0];
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}
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};
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}
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function stepOfCell(solvingState, name) {
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return function(cell) {
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return {
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reason: 'singleCell',
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set: name,
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empty: getRange(solvingState, cell),
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star: new CellSet.CellSet(cell)
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};
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};
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}
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function getRange(solvingState, cell) {
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var union = CellSet.union([
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solvingState.zones.colors[solvingState.getColor(cell)],
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solvingState.zones.rows[getRow(cell)],
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solvingState.zones.columns[getColumn(cell)],
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CellSet.rectangle(plus(cell, diagonal(-1)), diagonal(3))
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.intersection(solvingState.missing)
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]);
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union.remove(cell);
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return union;
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}
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