43 lines
958 B
JavaScript
43 lines
958 B
JavaScript
import CellSet;
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import Grid;
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import Toolbox;
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return {
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ize: colorize,
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paint: paint
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};
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function colorize(row, column, color) {
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var grid = Grid.get();
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grid.data[row][column] = color || Toolbox.color();
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Grid.cell(row, column).className = grid.data[row][column];
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grid.missing.remove(row, column);
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}
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function paint(i0, j0) {
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var originColor = Grid.get().data[i0][j0];
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var done = CellSet.make();
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var queue = [{i: i0, j: j0}];
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while(queue.length > 0) {
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var p0 = queue[0];
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colorize(p0.i, p0.j);
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done.add(p0.i, p0.j);
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extend(p0, queue, done, originColor);
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queue.shift();
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}
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}
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function extend(p0, queue, done, originColor) {
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var size = Grid.get().size;
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for(var d = -1; d < 2; d += 2) {
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[{i: p0.i + d, j: p0.j}, {i: p0.i, j: p0.j + d}].forEach(function(p1) {
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if(p1.i >= 0 && p1.i < size && p1.j >= 0 && p1.j < size
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&& !done.contains(p1.i, p1.j)
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&& Grid.get().data[p1.i][p1.j] == originColor) {
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queue.push(p1);
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}
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});
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}
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}
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