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'use strict';
function is_wall(size, x, y) {
return (
x === 0 || x === size-1 ||
y === 0 || y === size-1
);
}
function is_corner(size, x, y) {
const subsize = Math.floor(size/3);
return (
(x < subsize || x >= 2*subsize) &&
(y < subsize || y >= 2*subsize)
);
}
function get_team(size, x, y) {
const subsize = Math.floor(size/3);
if (y < subsize) {
return 0;
} else if (x >= 2*subsize) {
return 1;
} else if (y >= 2*subsize) {
return 2;
} else if (x < subsize) {
return 3;
} else {
return undefined;
}
}
export function setup_board(size) {
const lattice = [...Array(size)]
.map(() => [...Array(size)])
.map((row, y) => row.map((_, x) => {
if (is_wall(size, x, y)) {
return { type: 'immutable', flags: {} };
} else if (is_corner(size, x, y)) {
return { type: 'immutable', flags: {} };
} else {
const team = get_team(size, x, y);
return { type: 'empty', flags: { team } };
}
}));
return lattice;
}
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