117 lines
3.2 KiB
JavaScript

import React from 'react';
import Grid from '@material-ui/core/Grid';
import PropTypes from 'prop-types';
import { withStyles } from '@material-ui/core/styles';
import Quiz from 'react-quiz-component';
import { Typography } from '@material-ui/core';
import Button from '@material-ui/core/Button';
import RefreshIcon from '@material-ui/icons/Refresh';
import advancedQuiz from '../quiz/advancedQuiz.js'
import easyQuiz from '../quiz/easyQuiz.js'
import intermediateQuiz from '../quiz/intermediateQuiz.js'
// Style for the tabs.
const styles = theme => ({
root: {
flexGrow: 1,
backgroundColor: theme.palette.background.paper,
},
button: {
margin: theme.spacing.unit,
},
rightIcon: {
marginLeft: theme.spacing.unit,
}
});
class QuizGame extends React.Component {
/**
* Shuffles a given array.
* @param {*} array The array passed in.
*/
shuffleArray = array => {
let shuffled = array;
var j, x, i;
for (i = shuffled.length - 1; i > 0; i--) {
j = Math.floor(Math.random() * (i + 1));
x = shuffled[i];
shuffled[i] = shuffled[j];
shuffled[j] = x;
}
return shuffled;
}
reset = () => {
this.setState({
difficulty: this.pickDifficulty(this.props.difficulty),
key: Math.random()
});
}
/**
* This function returns the
* quiz data based on the difficulty
* level passed into it.
* @param {*} difficulty The difficulty setting passed in.
*/
pickDifficulty = difficulty => {
let level;
switch (difficulty) {
case 'Easy':
easyQuiz.questions = this.shuffleArray(easyQuiz.questions);
level = easyQuiz;
break;
case 'Intermediate':
intermediateQuiz.questions = this.shuffleArray(intermediateQuiz.questions);
level = intermediateQuiz;
break;
case 'Advanced':
advancedQuiz.questions = this.shuffleArray(advancedQuiz.questions);
level = advancedQuiz;
break;
default:
break;
}
return level;
}
// The state of the component.
state = {
difficulty: this.pickDifficulty(this.props.difficulty),
key: Math.random()
};
// Renders the quiz component.
render() {
const { classes } = this.props;
return (
// Tabs
<div className={classes.root}>
<Typography variant="title" align="center">
<Grid container justify="center">
<Quiz quiz={this.state.difficulty} key={this.state.key} />
</Grid>
</Typography>
<Typography align="center">
<Button variant="contained" color="default" className={classes.button} onClick={this.reset}>
Reset
<RefreshIcon className={classes.rightIcon} />
</Button>
</Typography>
</div>
);
}
}
QuizGame.propTypes = {
classes: PropTypes.object.isRequired
};
export default withStyles(styles)(QuizGame);