//A* BootStraper - Scratch X0
//Venkatraman Palani

//CA 686: FX of AI
//Practicum 1;

var cols=5;
var rows=5;
var grid=new Array(cols);
//searchSpace

var oSet=[];
//openSet
var cSet=[];
//closedSet
var s;
var e;
//start & end

var w,h;
//canvas width & height

function node(i,j){
    this.x=i;
    this.y=j;
    this.f=0;
    this.g=0;
    this.h=0;
    
    this.show=function(){
        //fill(255);
        //stroke(0);
        //rect((this.x*w)+1,(this.y*h)+1,w-1,h-1);
        rect(this.x*w,this.y*h,w-5,h-5);
        //rect(0,0,w,h)
    }
    //debug trace 0
}
//grid node & node objects

function setup(){
    createCanvas(700,700);
    console.log('A*');
    //initialize canvas & log header
    
    w=width/cols;
    h=height/rows;
    //node pixel density (w*h) across canvas per unit grid
    
    for(var i=0; i<cols; i++){
        grid[i]=new Array(rows);
    }
    //create 2D array
    
    for(var i=0; i<cols; i++){
        for(var j=0; j<rows; j++){
            grid[i][j]=new node(i,j);
        }
    }
    console.log(grid);
    //initialize grid indexes with node objects; grid log.
    
    s=grid[0][0];
    e=grid[cols-1][rows-1];
    //searchSpace** start at grid node = top left & end at grid node = bottom right; **Note: can be randomized.
    
    oSet.push(s);
    console.log(oSet);
    //openSet loaded with start grid node; log track.
}

function draw(){
    background(255,0,0);
    //indefinite animate loop (equivalent/~= while 1) & static background
    
    if(oSet.length>0){
        //traverse further if openSet is not empty;
    }else{
        //end traversal
    }
    
    for(i=0; i<cols; i++){
        for(j=0; j<rows; j++){
            grid[i][j].show();
        }
    }
    //debug trace 0
}