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https://github.com/processing/processing4.git
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40 lines
1.1 KiB
Plaintext
40 lines
1.1 KiB
Plaintext
/**
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* Clock.
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*
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* The current time can be read with the second(), minute(),
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* and hour() functions. In this example, sin() and cos() values
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* are used to set the position of the hands.
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*/
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void setup() {
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size(200, 200);
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stroke(255);
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smooth();
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}
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void draw() {
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background(0);
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fill(80);
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noStroke();
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// Angles for sin() and cos() start at 3 o'clock;
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// subtract HALF_PI to make them start at the top
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ellipse(100, 100, 160, 160);
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float s = map(second(), 0, 60, 0, TWO_PI) - HALF_PI;
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float m = map(minute() + norm(second(), 0, 60), 0, 60, 0, TWO_PI) - HALF_PI;
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float h = map(hour() + norm(minute(), 0, 60), 0, 24, 0, TWO_PI * 2) - HALF_PI;
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stroke(255);
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strokeWeight(1);
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line(100, 100, cos(s) * 72 + 100, sin(s) * 72 + 100);
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strokeWeight(2);
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line(100, 100, cos(m) * 60 + 100, sin(m) * 60 + 100);
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strokeWeight(4);
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line(100, 100, cos(h) * 50 + 100, sin(h) * 50 + 100);
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// Draw the minute ticks
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strokeWeight(2);
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for (int a = 0; a < 360; a+=6) {
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float x = 100 + ( cos(radians(a)) * 72 );
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float y = 100 + ( sin(radians(a)) * 72 );
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point(x, y);
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}
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}
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