58 lines
1.2 KiB
Go
58 lines
1.2 KiB
Go
package doodads
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"os"
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"path/filepath"
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)
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// ToJSON serializes the doodad as JSON.
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func (d *Doodad) ToJSON() ([]byte, error) {
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out := bytes.NewBuffer([]byte{})
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encoder := json.NewEncoder(out)
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encoder.SetIndent("", "\t")
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err := encoder.Encode(d)
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return out.Bytes(), err
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}
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// WriteJSON writes a Doodad to JSON on disk.
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func (d *Doodad) WriteJSON(filename string) error {
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json, err := d.ToJSON()
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if err != nil {
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return fmt.Errorf("Doodad.WriteJSON: JSON encode error: %s", err)
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}
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err = ioutil.WriteFile(filename, json, 0755)
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if err != nil {
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return fmt.Errorf("Doodad.WriteJSON: WriteFile error: %s", err)
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}
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d.Filename = filepath.Base(filename)
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return nil
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}
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// LoadJSON loads a map from JSON file.
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func LoadJSON(filename string) (*Doodad, error) {
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fh, err := os.Open(filename)
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if err != nil {
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return nil, err
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}
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defer fh.Close()
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// Decode the JSON file from disk.
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d := New(0)
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decoder := json.NewDecoder(fh)
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err = decoder.Decode(&d)
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if err != nil {
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return d, fmt.Errorf("doodad.LoadJSON: JSON decode error: %s", err)
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}
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// Inflate the chunk metadata to map the pixels to their palette indexes.
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d.Filename = filepath.Base(filename)
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d.Inflate()
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return d, err
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}
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