function onload() {
    if (!me.video.init(800, 600, {
        parent: 'screen',
      scaleMethod: 'flex-width',
      renderer: me.video.AUTO,
      preferWebGL1: false,
      subPixel: false
    })) {
        alert('Your browser does not support HTML5 canvas.')
        return
    }
    
    me.audio.init('mp3,ogg')
    me.loader.preload(resources, () => {
        me.state.set(me.state.PLAY, new PlayScreen())
        me.state.transition('fade', '#FFFFFF', 250)
        me.pool.register('mainPlayer', PlayerEntity)
        me.pool.register('SlimeEntity', SlimeEnemyEntity)
        me.pool.register('FlyEntity', FlyEnemyEntity)
        me.pool.register('CoinEntity', CoinEntity, true)
    }
    me.state.change(me.state.PLAY)
}

function App(){
    <Melon audio>
        <Preloader callback={()=>{
            me.state.transition('fade', '#FFFFFF', 250)
            game.texture = new me.TextureAtlas(me.loader.getJSON('texture'), me.loader.getImage('texture'))
        }} resources={resources} autoPlay>
            <Stage state={me.state.PLAY} stage={new PlayScreen()}/>
            <Entity name="FlyEntity" class={FlyEnemyEntity}/>
            <Entity name="SlimeEntity" class={SlimeEnemyEntity}/>
            <Entity name="CoinEntity" class={CoinEntity}/>
            <Entity name="mainPlayer" class={PlayerEntity}/>
        </Preloader>
    </Melon>
}