radar

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float r = 0;

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void setup(){

size(400,300);

background(0);

frameRate(20);

}

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void draw(){

  stroke(0,255,100);

fill(0,0,0,30);

rotate(r);

rect(0,0,width-5,height-5);

fill(0,255,0,50);

ellipse(200,200,5,5);

fill(0,255,0,30);

rect(0,0,300,20);

rotate(0.79);

fill(0,255,0,30);

rect(5,5,width-10,height-10);

fill(255,0,0,150);

ellipse(200,200,20,20);

rotate(r);

fill(0,255,0,30);

rect(5,5,width-10,height-10);

ellipse(200,200,20,20);

ellipse(200,100,20,20);

r=r+0.01;

}

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