20 lines
258 B
Go
20 lines
258 B
Go
package main
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type coord struct {
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x, y int
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}
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func (c coord) neighbors() []coord {
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n := []coord{
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{c.x + 1, c.y},
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{c.x, c.y + 1},
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}
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if c.x > 0 {
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n = append(n, coord{c.x - 1, c.y})
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}
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if c.y > 0 {
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n = append(n, coord{c.x, c.y - 1})
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}
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return n
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}
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