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27 lines
403 B
Go
27 lines
403 B
Go
4 years ago
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package math
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import (
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"encoding/json"
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)
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type Vec struct {
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X int
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Y int
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}
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func (v Vec) MarshalJSON() ([]byte, error) {
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return json.Marshal([2]int{v.X, v.Y})
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}
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func (v *Vec) UnmarshalJSON(b []byte) error {
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var raw [2]int
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if err := json.Unmarshal(b, &raw); err != nil {
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return err
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}
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v.X = raw[0]
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v.Y = raw[1]
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return nil
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}
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func (v Vec) Add(v2 Vec) Vec { return Vec{v.X + v2.X, v.Y + v2.Y} }
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