Processing + Python

draw_star.py

poly = [(10,40),(40,40),(50,10),(60,40),(90,40),
        (65,60),(75,90),(50,70),(25,90),(35,60),(10,40)]
tam = len(poly)
w, h, g, inc, s = 400, 400, 0, 1, None
        
def setup():
    global w, h, tam, poly, s
    size(w,h)
    frameRate(4)
    strokeWeight(4);
    s = createShape()
    s.beginShape()
    for p in poly: s.vertex(*p)
    s.endShape()
    
def draw():
    global g, inc, s
    background(0,50,200)
    translate(width/2, height/2)
    g = (g+inc) % 360
    rotate(radians(g))
    translate(-width/2, -height/2)
    with pushMatrix():
        scale(4)
        shape(s)

def mouseClicked():
    global inc
    inc = - inc