"Liniute" - Processing

ID	Autor	Duplicat din	Ultima modificare
`#4447`	Takacs Robert (RoTak)	-	Miercuri, 02 iun 2021, 16:48

let lines = []

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


function Line(x1, y1, x2, y2, str, alpha)
{
 	this.x1 = x1;
  	this.x2 = x2;
  	this.y1 = y1;
    this.y2 = y2;
 	this.str = str;
  	this.alpha = alpha;
  	this.remove = 0;
  
  	this.Update = function (dt)
    {
      this.alpha -= 0.3 * dt;
      if(this.alpha < 0) this.alpha = 0, this.remove = 1;
    }
    
    this.Draw = function()
    {
     	stroke(color(255,255,255,this.alpha));
      	strokeWeight(this.str);
      	line(this.x1, this.y1, this.x2, this.y2);
      	stroke(0);
      	strokeWeight(1);
      	
    }
}



function draw() {
  
	background(0);
 	if(lines.length == 0)
    {
      lines.push(new Line(mouseX, mouseY, mouseX, mouseY, 25, 256));
    }
  	else
    {
  	lines.push(new Line(lines[lines.length-1].x2, lines[lines.length-1].y2, mouseX, mouseY, 25, 256));
    }
  	while(lines[0].remove) lines.shift();
  
  	for(var i = 1; i < lines.length; ++i)
    {
      lines[i].Update(deltaTime);
      lines[i].Draw();
    }
    	
}