Dec 24 daily effect

Author: Anders-Holst

setup.py

@@ -1,4 +1,4 @@
-__version__ = '0.1.24'
+__version__ = '0.1.25'
 
 _classifiers = [
     'Development Status :: 4 - Beta',

xled_plus/samples/day24.py

@@ -0,0 +1,46 @@
+"""
+Day 24 - Christmas Tree Balls
+
+Colored balls moving against a glittering white background.
+Merry Christmas!
+"""
+
+from xled_plus.samples.sample_setup import *
+
+class ChristmasBallsScene(MovingShapesScene):
+    def __init__(self, ctr, cols):
+        super(ChristmasBallsScene, self).__init__(ctr)
+        self.freq = 0.5
+        self.colors = cols
+        self.whites = [hsl_color(0.4, 0.5, 0.2), hsl_color(0.1, 0.5, 0.2), hsl_color(0.0, 0.0, 0.2)]
+        self.blink = hsl_color(0.0, 0.0, 1.0)
+        self.bgpat = make_random_select_color_pattern(ctr, self.whites)
+        self.preferred_frames = 640
+
+    def create(self):
+        tp = int(random() * len(self.colors))
+        speed = 0.02
+        angle = random() * 2 * m.pi
+        offset = (random() - 0.5) * 1.6
+        vec = (m.sin(angle), m.cos(angle))
+        cent = (-vec[0] * 1.5 + vec[1] * offset, -vec[1] * 1.5 - vec[0] * offset)
+        vel = (vec[0] * speed, vec[1] * speed)
+        nstep = int(3.0 / speed)
+        sh = Ellipse(cent, 0.0, 0.16, 0.16, self.colors[tp])
+        sh.set_speed(vel[0], vel[1])
+        sh.set_depth(0.0)
+        sh.duetime = self.time + nstep
+        return sh
+        
+    def getnext(self):
+        pat1 = super(ChristmasBallsScene, self).getnext()
+        patbg = sprinkle_pattern(self.ctr, self.bgpat, [self.blink], 0.05*self.ctr.num_leds)
+        vec = self.getoccupancy()
+        pat = [pat1[i] if vec[i] else patbg[i] for i in range(self.ctr.num_leds)]
+        return pat
+
+ctr = setup_control()
+ctr.adjust_layout_aspect(1.0)  # How many times wider than high is the led installation?
+cols = [hsl_color(0.625, 1.0, -0.15), hsl_color(0.26, 1.0, -0.11), hsl_color(0.42, 1.0, -0.05), hsl_color(0.54, 1.0, -0.15)]
+# cols = [hsl_color(0.44, 1.0, -0.21), hsl_color(0.44, 1.0, 0.11), hsl_color(0.625, 1.0, -0.17), hsl_color(0.625, 1.0, 0.11)]
+ChristmasBallsScene(ctr, cols).launch_movie()