ficha2_mult.js

"use strict";

(function()
{
    //automatically called as soon as the javascript is loaded
    window.addEventListener("load", main);
}());


function main()
{
    var canvas = document.getElementById("myCanvas");
    var ctx = canvas.getContext("2d");
    var cw = canvas.width;
    var ch = canvas.height;

    /* add your code */
    var i, n=15;
    var lista = [];
    for( i=0; i<n; i++){
        var radius = Math.floor((Math.random()*50)+5);
        var shape = Math.floor((Math.random()*10) + 1)
        /*console.log(shape);*/
        if(shape<=5){
            /*Rectangulo*/
            var w = Math.floor((Math.random()*75) + 1);
            var h = Math.floor((Math.random()*75) + 1);
            var x = Math.floor((Math.random()* (cw-w)) + 1);
            var y = Math.floor((Math.random()*(ch-h)) + 1);
            var rect = new Rectangle(x,y,w,h);
            rect.draw(ctx);
            lista.push(rect);
        }
        else{
            var x = Math.floor((Math.random()*(cw-radius)) + radius);
            var y = Math.floor((Math.random()*(ch-radius)) + radius);
            if(y+radius>ch) y = y-radius;
            if(x+radius>cw) x = x-radius;
            var circle = new Circle(x,y,radius);
            circle.draw(ctx);
            lista.push(circle);
        }
    }

    intersect(lista);
}

function intersect()
{
    var i,j;
    var x1,y1,x2,y2;
    var w1,w2,h1,h2;
    var temp = [];
    var total_intersect = 0, total_inclusion=0;
    for(i=0; i<arguments[0].length; i++){
        /*Circulo*/
        if(typeof arguments[0][i].w == 'undefined'){
            x1 = arguments[0][i].x - arguments[0][i].r;
            y1 = arguments[0][i].y - arguments[0][i].r;
            w1 = 2*arguments[0][i].r;
            h1 = w1;
            temp = intersectUtil(arguments[0],i,x1,y1,w1,h1);
            total_intersect+=temp[0];
            total_inclusion+=temp[1];
        }
        /*Não é circulo*/
        else{
            x1 = arguments[0][i].x;
            y1 = arguments[0][i].y;
            w1 = arguments[0][i].w;
            h1 = arguments[0][i].h;
            temp = intersectUtil(arguments[0],i,x1,y1,w1,h1);
            total_intersect+=temp[0];
            total_inclusion+=temp[1];
        }
    }
    console.log("Numero de interseçoes: " + total_intersect);
    console.log("Numero de inclusoes: " + total_inclusion);

}

function intersectUtil()
{
    var i = arguments[1], j=0;
    var x1 = arguments[2], y1 = arguments[3], w1 = arguments[4], h1 = arguments[5];
    var x2,y2,w2,h2;
    var total_intersect=0,total_inclusion=0;
    var total=[];
    for(j=(i+1); j<arguments[0].length; j++){
        /*Circulo*/
        if(typeof arguments[0][j].w == 'undefined'){
            x2 = arguments[0][j].x - arguments[0][j].r;
            y2 = arguments[0][j].y - arguments[0][j].r;
            w2 = 2*arguments[0][j].r;
            h2 = w2;
        }
        /*Não é circulo*/
        else{
            x2 = arguments[0][j].x;
            y2 = arguments[0][j].y;
            w2 = arguments[0][j].w;
            h2 = arguments[0][j].h;
        }

        if(((x1>x2) && (y1>y2) && (x1+w1<x2+w2) && (y1+h1<y2+h2))){
            total_inclusion++;
        }
        /*Para verificar a inclusao das duas figuras*/
        else if(((x2>x1) && (y2>y1) && (x2+w2<x1+w1) && (y2+h2<y1+h1))){
            total_inclusion++;
        }
        /*Não estão incluidas, mas ainda podem intersetar*/
        else if(!((x1>x2+w2) || (y1>y2+h2) || (x1+w1<x2) || (y1+h1<y2))){
            total_intersect++;
        }
    }
    total.push(total_intersect);
    total.push(total_inclusion);
    return total;
}