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iotools.go
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/
iotools.go
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package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"os"
"gonum.org/v1/gonum/graph"
)
type JsonHeights struct {
Heights [][]float64 `json:"heights"`
}
type JsonResults struct {
MG *SmugglerMovementGraph `json:smugglerGraph`
Path [][]int `json:smugglerPath`
}
func LoadTerrainFromFile(filename string) *Terrain {
jsonFile, err := os.Open(filename)
// if we os.Open returns an error then handle it
if err != nil {
fmt.Println(err)
}
defer jsonFile.Close()
byteValue, _ := ioutil.ReadAll(jsonFile)
var heights JsonHeights
json.Unmarshal(byteValue, &heights)
terrain := InitTerrain(heights.Heights)
return terrain
}
func SaveResultsToFile(mg *SmugglerMovementGraph, path *[]graph.Node, filename string) {
resPath := make([][]int, len(*path))
for i, node := range *path {
_, x, y := mg.Terrain.SliceNodeToCoordByID(node.ID())
resPath[i] = []int{x, y}
}
file, _ := json.MarshalIndent(JsonResults{MG: mg, Path: resPath}, "", " ")
_ = ioutil.WriteFile(filename, file, 0644)
}