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import React from 'react'
import { Group, Line } from 'react-konva'
import { GRID_COLOR } from '../../../../util/colors'
import { GRID_LINE_WIDTH_IN_PIXELS, MAP_SIZE, MAP_SIZE_IN_PIXELS, TILE_SIZE_IN_PIXELS } from '../MapConstants'
const MAP_COORDINATE_ENTRIES = Array.from(new Array(MAP_SIZE), (x, i) => i)
const HORIZONTAL_POINT_PAIRS = MAP_COORDINATE_ENTRIES.map(index => [
0,
index * TILE_SIZE_IN_PIXELS,
MAP_SIZE_IN_PIXELS,
index * TILE_SIZE_IN_PIXELS,
])
const VERTICAL_POINT_PAIRS = MAP_COORDINATE_ENTRIES.map(index => [
index * TILE_SIZE_IN_PIXELS,
0,
index * TILE_SIZE_IN_PIXELS,
MAP_SIZE_IN_PIXELS,
])
const GridGroup = () => (
<Group>
{HORIZONTAL_POINT_PAIRS.concat(
VERTICAL_POINT_PAIRS,
).map((points, index) => (
<Line
key={index}
points={points}
stroke={GRID_COLOR}
strokeWidth={GRID_LINE_WIDTH_IN_PIXELS}
listening={false}
/>
))}
</Group>
)
export default GridGroup
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