Clock

The current time can be read with the second(), minute(), and hour() functions. In this example, sin() and cos() values are used to set the position of the hands.

from p5 import *

cx , cy = (0, 0)
secondsRadius = 0
minutesRadius = 0
hoursRadius = 0
clockDiameter = 0

def setup():
        global cx, cy, secondsRadius, minutesRadius, hoursRadius, clockDiameter

        size(640, 360)
        stroke(255)

        radius = min(width, height) / 2

        secondsRadius = radius * 0.72
        minutesRadius = radius * 0.60
        hoursRadius = radius * 0.50
        clockDiameter = radius * 1.8

        cx = width / 2
        cy = height / 2

def draw():
        global cx, cy, secondsRadius, minutesRadius, hoursRadius, clockDiameter
        background(102)

        # Draw the clock background
        fill(80)
        no_stroke()
        ellipse((cx, cy), clockDiameter, clockDiameter)

        # Angles for sin() and cos() start at 3 o'clock
        # subtract HALF_PI to make them start at the top
        s = remap(second(), [0, 60], [0, TWO_PI]) - HALF_PI
        m = remap(minute() + normalize(second(), 0, 60), [0, 60], [0, TWO_PI]) - HALF_PI
        h = remap(hour() + normalize(minute(), 0, 60), [0, 24], [0, TWO_PI * 2]) - HALF_PI

        # Draw the hands of the clock
        stroke(255)
        stroke_weight(1)
        line([cx, cy], [cx + cos(s) * secondsRadius, cy + sin(s) * secondsRadius])
        stroke_weight(2)
        line([cx, cy], [cx + cos(m) * minutesRadius, cy + sin(m) * minutesRadius])
        stroke_weight(4)
        line([cx, cy], [cx + cos(h) * hoursRadius, cy + sin(h) * hoursRadius])

        # Draw the minute ticks
        stroke_weight(2)
        begin_shape(POINTS)
        for a in range(0, 360, 6):
                angle = radians(a)
                x = cx + cos(angle) * secondsRadius
                y = cy + sin(angle) * secondsRadius
                vertex(x, y)
        end_shape()


if __name__ == '__main__':
        run()