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players.go
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players.go
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package wordle
import (
"bufio"
"fmt"
"os"
"strings"
)
// A humanPlayer plays a Game by:
// - manually typing the best guess into the game (shown through stdout)
// - entering the resulting hint through stdin
type humanPlayer struct {
guessAsHint *wordHint
}
func (h *humanPlayer) getGuess(bestGuess string) string {
if !Verbose {
fmt.Println("Best guess:", bestGuess)
}
for {
result := readLine("Guess")
if len(result) == 0 {
fmt.Println("Used best guess")
return bestGuess
}
if len(result) != wordSize {
fmt.Printf("Bad guess: wrong size: expected %v, got %v\n", wordSize, len(result))
continue
}
var hint wordHint
if hint.fromString(result) == nil {
h.guessAsHint = &hint
fmt.Println("Used best guess")
return bestGuess
}
return result
}
}
func (h *humanPlayer) getHint(guess string) wordHint {
var hint wordHint
if h.guessAsHint != nil {
fmt.Println("Used guess as hint")
hint = *h.guessAsHint
h.guessAsHint = nil
return hint
}
for {
result := readLine("Hint")
err := hint.fromString(result)
if err == nil {
return hint
}
fmt.Printf("Bad hint: %v\n", err)
}
}
func readLine(prompt string) string {
reader := bufio.NewReader(os.Stdin)
fmt.Print(prompt + ": ")
text, err := reader.ReadString('\n')
if err != nil {
panic(err)
}
return strings.TrimSpace(text)
}
// A computerPlayer plays a Game by:
// - using the best guess
// - calculating the hint by comparing against the answer
type computerPlayer struct {
answer string
}
func (c computerPlayer) getGuess(bestGuess string) string {
return bestGuess
}
func (c computerPlayer) getHint(guess string) wordHint {
return createHint(guess, c.answer)
}