"Patrulater" - Processing

ID	Autor	Duplicat din	Ultima modificare
`#349`	Candale Silviu (silviu)	quad(x1, y1, x2, y2, x3, y3, x4, y4))	Sambata, 18 iun 2016, 23:04

Desenează un patrulater mutând cu mouse-ul vârfurile pe pânză.

function setup() {
	createCanvas(400, 400);
}

var V = new Array(
  			{X : 150, Y : 100}, 
  			{X : 350, Y : 200}, 
  			{X : 300, Y : 300},
  			{X : 100, Y : 300}
		);
var selectat = -1;

function draw() {
  	
  	if(mouseIsPressed && selectat != -1)
    {
      if(mouseX >= 0 && mouseX < width && mouseY >= 0 && mouseY < height)
      
      V[selectat].X = mouseX, V[selectat].Y = mouseY;
    }
  	background(255);
  	push();
	fill("lightgreen");
  	stroke("gray");
  	quad(V[0].X, V[0].Y, V[1].X, V[1].Y, V[2].X, V[2].Y, V[3].X, V[3].Y);
  	fill("white");
  	for(var i = 0 ; i < V.length ; i ++)
    {
      	ellipse(V[i].X, V[i].Y, 8 ,8);
      	push();
      	fill("gray");
      	noStroke();
      	textSize(10);
      	text("X: " + V[i].X + ", Y: "+ V[i].Y, V[i].X + 5, V[i].Y - 5);
      	pop();
    }
  	pop();
  	
}


function mousePressed()
{
	selectat = -1;
  	for(var i = 0; i < V.length && selectat == -1 ; i ++)
      	if(dist(V[i].X, V[i].Y, mouseX, mouseY) < 5)
          	selectat = i;
}

function mouseReleased(){
	selectat = -1;
}