/**
 * Blek Drawer
 * By Raphael Rouvinov-Kats
 * 
 * Draw something and blek drawer will repeat it forever!
 * */

var moves, startX, startY, currMove;

var restartVars = function() {
    moves = [];
    startX = mouseX;
    startY = mouseY;
    currMove = 0;
};

restartVars();
strokeWeight(1);
stroke(0, 0, 0);
var draw = function() {
    if(mouseIsPressed) {
        for(var i = 0; i < moves.length-1; i++) {
            line(moves[i][0], moves[i][1], moves[i+1][0], moves[i+1][1]);
        }
    } else if(moves.length > 1) {
        for(var i = 0; i < 20; i++)  {
            if(currMove >= moves.length - 1) { currMove = 0; }
            var dx = moves[currMove+1][0] - moves[currMove][0];
            var dy = moves[currMove+1][1] - moves[currMove][1];
            line(startX, startY,
                 startX+dx, startY+dy);
            
            startX += dx;
            startY += dy;
            currMove++;
        }
    }
};

var mousePressed = function() {
    restartVars();
    moves.push([mouseX, mouseY]);
};

var mouseDragged = function() {
    moves.push([mouseX, mouseY]);
};