// Cloned by MENGTE ZHU on 15 Nov 2022 from World "Port of flying birds " by Discover three.js 
// Please leave this clone trail here.
 

// Port of flying birds from discoverthreejs.com
// "Final code from Ch 1.7 of Discover three.js" 
// https://codesandbox.io/s/github/looeee/discoverthree.com-examples/tree/master/1-first-steps/7-load-models?from-embed
 
   const MAXPOS               = 7;            // start things within these bounds 
   const startRadiusConst	 = MAXPOS * 1.5 ;	// distance from centre to start the camera at
   const maxRadiusConst 	     = MAXPOS * 5 ;		// maximum distance from camera we will render things  
 
 
 
 // const startRadius       = 1;                  // distance from centre we start the camera at
 // const maxRadius         = startRadius * 20;     // maximum distance from camera we render things 

// can load skybox of other user:
 const SKYBOX_ARRAY = [										 
                "/uploads/starter/dawnmountain-xpos.png",
                "/uploads/starter/dawnmountain-xneg.png",
                "/uploads/starter/dawnmountain-ypos.png",
                "/uploads/starter/dawnmountain-yneg.png",
                "/uploads/starter/dawnmountain-zpos.png",
                "/uploads/starter/dawnmountain-zneg.png"
                ];


 const mixers = [];
 const clock = new THREE.Clock();

// AB customisations
// Select text and "Code Help" to see what these mean:


	AB.world.newRun = function()
	{
	    //      ABWorld.renderer = new THREE.WebGLRenderer ( { antialias: true } );     
	    // custom renderer args - uncomment if need this - otherwise init3d makes the renderer 
	    
        // var color    = new THREE.Color ();                          // renderer color is not used - there is a skybox
	    ABWorld.init3d ( startRadiusConst, maxRadiusConst );            
	    
	    initLights();    
	    loadModels();
	    loadStayModels();
	    
	    // skybox: 
        ABWorld.scene.background = new THREE.CubeTextureLoader().load ( SKYBOX_ARRAY );
	};

	AB.world.nextStep = function()		 
	{
	    const delta = clock.getDelta();
        mixers.forEach( ( mixer ) => { mixer.update( delta ); } );
	};



function loadModels() 
{
  const loader = new THREE.GLTFLoader();

  const onLoad = ( gltf, position ) => 
  {
    const model = gltf.scene.children[ 0 ];
     model.position.copy( position );

      const animation = gltf.animations[ 0 ];

      const mixer = new THREE.AnimationMixer( model );
      mixers.push( mixer );

      const action = mixer.clipAction( animation );
      action.play();

    ABWorld.scene.add( model );
  };
     
     const gokuPosition  = new THREE.Vector3 ( 8,     0,   -3);
     const buuPosition    = new THREE.Vector3 ( 2,   0, 6 );
     const vegetaPosition    = new THREE.Vector3 ( 2,   0, 6 );

 // can load 3D models of other user:
  
  loader.load ( '/uploads/chris/goku_rigged__animated.glb', gltf => onLoad ( gltf, gokuPosition ) );
  loader.load ( '/uploads/chris/kid_buu.glb',   gltf => onLoad ( gltf, buuPosition )   );
  loader.load ( '/uploads/chris/kid_buu.glb',   gltf => onLoad ( gltf, vegetaPosition )   );
}

function loadStayModels()
{
  const Sloader = new THREE.GLTFLoader();

  const SonLoad = ( gltf, Sposition ) => 
  {
    const Smodel = gltf.scene.children[ 0 ];
     Smodel.position.copy( Sposition );

    ABWorld.scene.add( Smodel );
  };
     const vegettoPosition    = new THREE.Vector3 ( 0,   0,  0);
     const brolyPosition    = new THREE.Vector3 ( 0,   0, -10 );
     
  Sloader.load ( '/uploads/chris/vegetto.glb', gltf => SonLoad ( gltf, vegettoPosition ) );
  Sloader.load ( '/uploads/chris/dragon_ball_zbroly.glb', gltf => SonLoad ( gltf, brolyPosition ) );
  
}

function initLights() 
// the lights are needed to show up models
{
  const ambientLight = new THREE.AmbientLight( 0xffffff, 1 );
  ABWorld.scene.add( ambientLight );

  const frontLight = new THREE.DirectionalLight( 0xffffff, 1 );
  frontLight.position.set( 10, 10, 10 );

  const backLight = new THREE.DirectionalLight( 0xffffff, 1 );
  backLight.position.set( -10, 10, -10 );

  ABWorld.scene.add( frontLight, backLight );
}

// background music 
// can load music of other user:

 // const MUSICFILE = '/uploads/test/StarCommander1.wav';
 // AB.backgroundMusic ( MUSICFILE );