// Cloned by Himanshu Warekar on 7 Oct 2021 from World "Blank Three.js World" by Starter user 
// Please leave this clone trail here.
 



// ==== Starter World =================================================================================================
// This code is designed for use on the Ancient Brain site.
// This code may be freely copied and edited by anyone on the Ancient Brain site.
// To include a working run of this program on another site, see the "Embed code" links provided on Ancient Brain.
// ====================================================================================================================




// Starter World for Three.js experiments 

// No Mind
// Just World 







// ===================================================================================================================
// === Start of tweaker's box ======================================================================================== 
// ===================================================================================================================

// The easiest things to modify are in this box.
// You should be able to change things in this box without being a JavaScript programmer.
// Go ahead and change some of these. What's the worst that could happen?



AB.clockTick = 100;         // Speed of run: Step every n milliseconds. Default 100.
AB.maxSteps = 1000;         // Length of run: Maximum length of run in steps. Default 1000.
AB.screenshotStep = 50;     // Take screenshot on this step. (All resources should have finished loading.) Default 50.

const FILE_ARRAY = [
	"/uploads/starter/earth.1.jpg",
	"/uploads/starter/earth.2.jpg",
	"/uploads/starter/earth.3.jpg",
	"/uploads/starter/earth.4.jpg",
	"/uploads/starter/earth.5.jpg"
];
	
	
const SKYCOLOR 	= 0xffffff;	            // a number, not a string 
const ARMYSIZE = 300;                   // an "army" of objects 
const objectsize = 300;                 // bounds of the random move per timestep 
const WALKSTEP = 500;                   // try 50 (vibrating sheet) versus 1000 (cloud)
const MAXPOS = 4000 ;                   // start things within these bounds                    
const startRadiusConst = MAXPOS * 2;	// distance from centre to start the camera at
const maxRadiusConst = MAXPOS * 5;		// maximum distance from camera we will render things  

//--- change ABWorld defaults: -------------------------------

ABHandler.MAXCAMERAPOS = MAXPOS * 10;	// allow camera go far away 
ABWorld.drawCameraControls = false; 

var THEARMY = new Array (ARMYSIZE);	
var textureArray = new Array (FILE_ARRAY.length);
var x = null;
var y = null;
var z = null;
var steps = [];
var counter = 10000000000;

function loadResources () {		                    // asynchronous file loads - call initScene() when all finished 
	for (let i = 0; i < FILE_ARRAY.length; i++) {
        startFileLoad(i);			                // launch n asynchronous file loads
	}
}

	
function startFileLoad(n) {				// asynchronous file load of texture n 
	let loader = new THREE.TextureLoader();

	loader.load(FILE_ARRAY[n], function (thetexture) {
		thetexture.minFilter = THREE.LinearFilter;
		textureArray[n] = thetexture;
		if (asynchFinished()) {
		    initArmy();
		}
	});	
}

 
function asynchFinished () {		// all file loads returned 
	for (let i = 0; i < FILE_ARRAY.length; i++) {
		if (!textureArray[i]) 
			return false;
		
	  return true;
	}
}


function initArmy() {		 // called when all textures ready 
    let t = 0;
 
    for (let c=0 ; c <= ARMYSIZE ; c++) {
        // var shape = new THREE.SphereGeometry ( objectsize, 10, 10 ); 
       	let shape = new THREE.BoxGeometry(objectsize, objectsize, objectsize);
      	let theobject = new THREE.Mesh(shape);
    
      	theobject.position.x = 0;   	
      	theobject.position.z = 0;   	
      	theobject.position.y = 0;	
    	
     	let r = AB.randomIntAtoB(0, textureArray.length - 1);    			 // random texture 
        theobject.material =  new THREE.MeshBasicMaterial({ map: textureArray[r]});   
    
     	ABWorld.scene.add(theobject);
    	THEARMY[t] = theobject;	            	// save it for later
    	t++; 
     }
 
  // can start the run loop
  
	ABWorld.render();		
	AB.removeLoading();
  	AB.runReady = true; 		
}


var moveArmy = function ()	{	    // move all the objects 
    for ( let i = 0; i < THEARMY.length; i++ ) { 
       if (THEARMY[i]) {		// in case initArmy() not called yet
            if (steps.length < 1000) {
                let x = THEARMY[i].position.x + AB.randomIntAtoB(-WALKSTEP,WALKSTEP);
                let y = THEARMY[i].position.y + AB.randomIntAtoB(-WALKSTEP,WALKSTEP);
                let z = THEARMY[i].position.z + AB.randomIntAtoB(-WALKSTEP,WALKSTEP);
                steps.push([x, y, z])
                THEARMY[i].position.x = x;
                THEARMY[i].position.z = z;
                THEARMY[i].position.y = y;
            } else {
                let step = steps.pop()
                THEARMY[i].position.x = steps[0];
                THEARMY[i].position.z = steps[2];
                THEARMY[i].position.y = steps[1];
            }
            
            ABWorld.scene.add(THEARMY[i]);
        }
    }
}



AB.world.newRun = function() {
	AB.loadingScreen();
	AB.runReady = false;  
	ABWorld.init3d ( startRadiusConst, maxRadiusConst, SKYCOLOR  ); 
	loadResources();		// aynch file loads		
	// calls initArmy() when it returns 
};



AB.world.nextStep = function() {
 	moveArmy();
};