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path: root/go/game/movement.go
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package game

import (
	"fmt"
	"log"
	"strconv"
	"strings"
)

type Movement struct {
	Range    int
	Swimming bool
}

func INVALID_MOVEMENT() Movement {
	return Movement{-1, false}
}

func parseMovement(desc any) Movement {
	var movementStr string
	switch typedDesc := desc.(type) {
	case uint64:
		return Movement{int(typedDesc), false}
	case string:
		movementStr = typedDesc
	case map[string]any:
		movementStr = typedDesc["en"].(string)
	}

	tokens := strings.Split(movementStr, " ")
	r, err := strconv.Atoi(tokens[0])
	if err != nil {
		log.Panicf("Invalid movement description %s", movementStr)
	}

	swimming := len(tokens) > 1 && tokens[1] == "swimming"

	return Movement{r, swimming}
}

func (m Movement) String() string {
	if m == INVALID_MOVEMENT() {
		return "invalid movement"
	}
	if m.Swimming {
		return fmt.Sprintf("%d swimming", m.Range)
	}
	return fmt.Sprintf("%d", m.Range)
}