5a1130c77a
PacifistBot never attacks; it survives by maximizing distance from enemies and retreating toward own core when cornered. Pure evasion strategy that wins via opponent elimination by third parties. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
34 lines
878 B
JavaScript
34 lines
878 B
JavaScript
/**
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* Grid utility functions for AI Code Battle.
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* Toroidal distance calculations, neighbor enumeration, and BFS.
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*/
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function toroidalDelta(a, b, size) {
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const d = Math.abs(a - b);
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return Math.min(d, size - d);
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}
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function distance2(r1, c1, r2, c2, rows, cols) {
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const dr = toroidalDelta(r1, r2, rows);
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const dc = toroidalDelta(c1, c2, cols);
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return dr * dr + dc;
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}
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function manhattan(r1, c1, r2, c2, rows, cols) {
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return toroidalDelta(r1, r2, rows) + toroidalDelta(c1, c2, cols);
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}
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function moveDir(row, col, dir, rows, cols) {
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switch (dir) {
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case "N": return [(row - 1 + rows) % rows, col];
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case "E": return [row, (col + 1) % cols];
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case "S": return [(row + 1) % rows, col];
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case "W": return [row, (col - 1 + cols) % cols];
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}
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}
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function posKey(r, c) {
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return `${r},${c}`;
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}
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module.exports = { distance2, manhattan, moveDir, posKey };
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