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lesson-2.1 #6

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18 changes: 8 additions & 10 deletions src/App.js
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Original file line number Diff line number Diff line change
@@ -1,15 +1,13 @@
import React, { Component } from "react";
import React from "react";
import NumberGuessingGame from "./NumberGuessingGame";
import "./App.css";

class App extends Component {
render() {
return (
<div className="App">
<NumberGuessingGame />
</div>
);
}
}
const App = () => {
return (
<div className="App">
<NumberGuessingGame />
</div>
);
};

export default App;
116 changes: 71 additions & 45 deletions src/GuessControl.js
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Original file line number Diff line number Diff line change
@@ -1,47 +1,73 @@
import React, { Component } from "react";
import React, { useState } from "react";
import Button from "./Button";

class GuessControl extends Component {
constructor(props) {
super(props);

this.state = {
currentGuess: "",
};

/**
* These lines are required to make the methods/functions declared on this
* class have the correct `this` object when they run.
*/
this.handleInputChange = this.handleInputChange.bind(this);
this.onSubmitGuess = this.onSubmitGuess.bind(this);
}

handleInputChange(event) {
this.setState({ currentGuess: event.target.value });
}

onSubmitGuess() {
// Since the values from an HTML input are strings by default,
// convert to a number for the returned guess value
// by passing in the string to the Number function.
// See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number
this.props.onGuess(Number(this.state.currentGuess));
this.setState({ currentGuess: "" });
}

render() {
return (
<div>
<input
type="number"
value={this.state.currentGuess}
onChange={this.handleInputChange}
/>
<Button onClick={this.onSubmitGuess}>Submit Guess</Button>
</div>
);
}
}

export default GuessControl;
const GuessControl = ({onGuess}) => {
const [currentGuess, setCurrentGuess] = useState("");

function handleInputChange(e) {
setCurrentGuess(e.target.value);
}

function onSubmitGuess() {
onGuess(parseInt(currentGuess));
setCurrentGuess("");
}

return (
<div>
<input
type="number"
value={currentGuess}
onChange={handleInputChange}
/>
<Button onClick={onSubmitGuess}>Submit Guess</Button>
</div>
);

};


// class GuessControlOld extends Component {
// constructor(props) {
// super(props);

// this.state = {
// currentGuess: "",
// };

// /**
// * These lines are required to make the methods/functions declared on this
// * class have the correct `this` object when they run.
// */
// this.handleInputChange = this.handleInputChange.bind(this);
// this.onSubmitGuess = this.onSubmitGuess.bind(this);
// }

// handleInputChange(event) {
// this.setState({ currentGuess: event.target.value });
// }

// onSubmitGuess() {
// // Since the values from an HTML input are strings by default,
// // convert to a number for the returned guess value
// // by passing in the string to the Number function.
// // See https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number
// this.props.onGuess(Number(this.state.currentGuess));
// this.setState({ currentGuess: "" });
// }

// render() {
// return (
// <div>
// <input
// type="number"
// value={this.state.currentGuess}
// onChange={this.handleInputChange}
// />
// <Button onClick={this.onSubmitGuess}>Submit Guess</Button>
// </div>
// );
// }
// }

export default GuessControl;
168 changes: 101 additions & 67 deletions src/NumberGuessingGame.js
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Original file line number Diff line number Diff line change
@@ -1,77 +1,111 @@
import React, { Component } from "react";
import React, { useState } from "react";
import GuessControl from "./GuessControl";
import GuessMessage from "./GuessMessage";
import GameOver from "./GameOver";

/**
*
* Returns a random integer number from 1-100 inclusive
*/

function getRandomNumber() {
return Math.floor(Math.random() * 100) + 1;
}

const MAX_ATTEMPTS = 5;

class NumberGuessingGame extends Component {
constructor(props) {
super(props);

this.state = {
numberToGuess: getRandomNumber(),
numberOfGuesses: 0,
latestGuess: null,
};

/**
* These lines are required to make the methods/functions declared on this
* class have the correct `this` object when they run.
*/
this.handleGuess = this.handleGuess.bind(this);
this.handleReset = this.handleReset.bind(this);
}

handleGuess(guess) {
this.setState({
latestGuess: guess,
numberOfGuesses: this.state.numberOfGuesses + 1,
});
}

handleReset() {
this.setState({
numberToGuess: getRandomNumber(),
numberOfGuesses: 0,
latestGuess: null,
});
}

render() {
const isCorrectGuess = this.state.latestGuess === this.state.numberToGuess;

const isGameOver =
isCorrectGuess || this.state.numberOfGuesses === MAX_ATTEMPTS;

return (
<div>
<h2>I'm thinking of a number from 1 to 100.</h2>
<h2>
Can you guess the number I am thinking of in {MAX_ATTEMPTS} tries?
</h2>
<GuessControl onGuess={this.handleGuess} />
{isGameOver && (
<GameOver hasWon={isCorrectGuess} onReset={this.handleReset} />
)}
{!isGameOver && (
<GuessMessage
guess={this.state.latestGuess}
numberToGuess={this.state.numberToGuess}
numberOfGuesses={this.state.numberOfGuesses}
/>
)}
</div>
);
}
}
const NumberGuessingGame = () => {
const [numberToGuess, setNumberToGuess] = useState(getRandomNumber());
const [numberOfGuesses, setNumberOfGuesses] = useState(0);
const [latestGuess, setLatestGuess] = useState(null);

function handleGuess(guess) {
setLatestGuess(Number(guess));
setNumberOfGuesses(numberOfGuesses + 1);
}

function handleReset() {
setNumberToGuess(getRandomNumber());
setNumberOfGuesses(0);
setLatestGuess(null);
}

const isCorrectGuess = latestGuess === numberToGuess;
const isGameOver = isCorrectGuess || numberOfGuesses === MAX_ATTEMPTS;

return (
<div>
<h2>I'm thinking of a number from 1 to 100.</h2>
<h2>
Can you guess the number I am thinking of in {MAX_ATTEMPTS} tries?
</h2>
<GuessControl onGuess={handleGuess} />
{isGameOver && <GameOver hasWon={isCorrectGuess} onReset={handleReset} />}
{!isGameOver && (
<GuessMessage
guess={latestGuess}
numberToGuess={numberToGuess}
numberOfGuesses={numberOfGuesses}
/>
)}
</div>
);
};

// class NumberGuessingGameOld extends Component {
// constructor(props) {
// super(props);

// this.state = {
// numberToGuess: getRandomNumber(),
// numberOfGuesses: 0,
// latestGuess: null,
// };

// /**
// * These lines are required to make the methods/functions declared on this
// * class have the correct `this` object when they run.
// */
// this.handleGuess = this.handleGuess.bind(this);
// this.handleReset = this.handleReset.bind(this);
// }

// handleGuess(guess) {
// this.setState({
// latestGuess: guess,
// numberOfGuesses: this.state.numberOfGuesses + 1,
// });
// }

// handleReset() {
// this.setState({
// numberToGuess: getRandomNumber(),
// numberOfGuesses: 0,
// latestGuess: null,
// });
// }

// render() {
// const isCorrectGuess = this.state.latestGuess === this.state.numberToGuess;

// const isGameOver =
// isCorrectGuess || this.state.numberOfGuesses === MAX_ATTEMPTS;

// return (
// <div>
// <h2>I'm thinking of a number from 1 to 100.</h2>
// <h2>
// Can you guess the number I am thinking of in {MAX_ATTEMPTS} tries?
// </h2>
// <GuessControl onGuess={this.handleGuess} />
// {isGameOver && (
// <GameOver hasWon={isCorrectGuess} onReset={this.handleReset} />
// )}
// {!isGameOver && (
// <GuessMessage
// guess={this.state.latestGuess}
// numberToGuess={this.state.numberToGuess}
// numberOfGuesses={this.state.numberOfGuesses}
// />
// )}
// </div>
// );
// }
// }

export default NumberGuessingGame;
export default NumberGuessingGame;