Added the possibility to change the base color of the mood blobs over time.

The base Color is moved 1 degree in baseColorChangeRate seconds if activated.
It is moved between baseColorRangeLeft and baseColorRangeRight. These Values are in degrees. When these borders are set to the full circle (eg. 0 and 360), the base color moves around the colorwheel, otherwise it moves from left to right and back again.
Furthermore there are three effects script for this feature: "Full color mood blobs" which moves around the full circle, "Warm mood blobs" and "Cold mood blobs" which only shows the warm, cold colors.
This update wont change the functionality of the old scripts.


Former-commit-id: 0c7a2ad280

effects/mood-blobs-cold.json

@@ -0,0 +1,16 @@
+{
+	"name" : "Cold mood blobs",
+	"script" : "mood-blobs.py",
+	"args" :
+	{
+		"rotationTime" : 60.0,
+		"color" : [0,0,255],
+		"hueChange" : 30.0,
+		"blobs" : 5,
+		"reverse" : false,
+		"baseChange" : true,
+		"baseColorRangeLeft" : 160,
+		"baseColorRangeRight" : 320,
+		"baseColorChangeRate" : 2.0
+	}
+}

effects/mood-blobs-full.json

@@ -0,0 +1,16 @@
+{
+	"name" : "Full color mood blobs",
+	"script" : "mood-blobs.py",
+	"args" :
+	{
+		"rotationTime" : 60.0,
+		"color" : [0,0,255],
+		"hueChange" : 30.0,
+		"blobs" : 5,
+		"reverse" : false,
+		"baseChange" : true,
+		"baseColorRangeLeft" : 0,
+		"baseColorRangeRight" : 360,
+		"baseColorChangeRate" : 0.2
+	}
+}

effects/mood-blobs-warm.json

@@ -0,0 +1,16 @@
+{
+	"name" : "Warm mood blobs",
+	"script" : "mood-blobs.py",
+	"args" :
+	{
+		"rotationTime" : 60.0,
+		"color" : [255,0,0],
+		"hueChange" : 30.0,
+		"blobs" : 5,
+		"reverse" : false,
+		"baseChange" : true,
+		"baseColorRangeLeft" : 333,
+		"baseColorRangeRight" : 151,
+		"baseColorChangeRate" : 2.0
+	}
+}

effects/mood-blobs.py

@@ -6,14 +6,31 @@ import math
 # Get the parameters
 rotationTime = float(hyperion.args.get('rotationTime', 20.0))
 color = hyperion.args.get('color', (0,0,255))
-hueChange = float(hyperion.args.get('hueChange', 60.0)) / 360.0
+hueChange = float(hyperion.args.get('hueChange', 60.0))
 blobs = int(hyperion.args.get('blobs', 5))
 reverse = bool(hyperion.args.get('reverse', False))
+baseColorChange = bool(hyperion.args.get('baseChange', False))
+baseColorRangeLeft = float(hyperion.args.get('baseColorRangeLeft',0.0))   # Degree
+baseColorRangeRight = float(hyperion.args.get('baseColorRangeRight',360.0))   # Degree
+baseColorChangeRate = float(hyperion.args.get('baseColorChangeRate',10.0))   # Seconds for one Degree
+
+# switch baseColor change off if left and right are too close together to see a difference in color
+if (baseColorRangeRight > baseColorRangeLeft and (baseColorRangeRight - baseColorRangeLeft) < 10) or \
+    (baseColorRangeLeft > baseColorRangeRight and ((baseColorRangeRight + 360) - baseColorRangeLeft) < 10):
+    baseColorChange = False
+
+# 360 -> 1
+fullColorWheelAvailable = (baseColorRangeRight % 360) == (baseColorRangeLeft % 360)
+baseColorChangeIncreaseValue = 1.0 / 360.0 # 1 degree
+hueChange /= 360.0
+baseColorRangeLeft = (baseColorRangeLeft / 360.0)
+baseColorRangeRight = (baseColorRangeRight / 360.0)
 
 # Check parameters
 rotationTime = max(0.1, rotationTime)
 hueChange = max(0.0, min(abs(hueChange), .5))
 blobs = max(1, blobs)
+baseColorChangeRate = max(0, baseColorChangeRate) # > 0
 
 # Calculate the color data
 baseHsv = colorsys.rgb_to_hsv(color[0]/255.0, color[1]/255.0, color[2]/255.0)
@@ -27,6 +44,7 @@ for i in range(hyperion.ledCount):
 sleepTime = 0.1
 amplitudePhaseIncrement = blobs * math.pi * sleepTime / rotationTime
 colorDataIncrement = 3
+baseColorChangeRate /= sleepTime
 
 # Switch direction if needed
 if reverse:
@@ -39,23 +57,58 @@ colors = bytearray(hyperion.ledCount * (0,0,0))
 # Start the write data loop
 amplitudePhase = 0.0
 rotateColors = False
-while not hyperion.abort():
-	# Calculate new colors
-	for i in range(hyperion.ledCount):
-		amplitude = max(0.0, math.sin(-amplitudePhase + 2*math.pi * blobs * i / hyperion.ledCount))
-		colors[3*i+0] = int(colorData[3*i+0] * amplitude)
-		colors[3*i+1] = int(colorData[3*i+1] * amplitude)
-		colors[3*i+2] = int(colorData[3*i+2] * amplitude)
+baseColorChangeStepCount = 0
+baseHSVValue = baseHsv[0]
+numberOfRotates = 0
 
-	# set colors
-	hyperion.setColor(colors)
-	
-	# increment the phase
-	amplitudePhase = (amplitudePhase + amplitudePhaseIncrement) % (2*math.pi)
-	
-	if rotateColors:
-		colorData = colorData[-colorDataIncrement:] + colorData[:-colorDataIncrement]
-	rotateColors = not rotateColors
-	
-	# sleep for a while
-	time.sleep(sleepTime)
+while not hyperion.abort():
+
+    # move the basecolor
+    if baseColorChange:
+        # every baseColorChangeRate seconds
+        if baseColorChangeStepCount >= baseColorChangeRate:
+            baseColorChangeStepCount = 0
+            # cyclic increment when the full colorwheel is available, move up and down otherwise
+            if fullColorWheelAvailable:
+                baseHSVValue = (baseHSVValue + baseColorChangeIncreaseValue) % baseColorRangeRight
+            else:
+                # switch increment direction if baseHSV <= left or baseHSV >= right
+                if baseColorChangeIncreaseValue < 0 and baseHSVValue > baseColorRangeLeft and (baseHSVValue + baseColorChangeIncreaseValue) <= baseColorRangeLeft:
+                    baseColorChangeIncreaseValue = abs(baseColorChangeIncreaseValue)
+                elif baseColorChangeIncreaseValue > 0 and baseHSVValue < baseColorRangeRight and (baseHSVValue + baseColorChangeIncreaseValue)  >= baseColorRangeRight :
+                    baseColorChangeIncreaseValue = -abs(baseColorChangeIncreaseValue)
+
+                baseHSVValue = (baseHSVValue + baseColorChangeIncreaseValue) % 1.0
+
+            # update color values
+            colorData = bytearray()
+            for i in range(hyperion.ledCount):
+                hue = (baseHSVValue + hueChange * math.sin(2*math.pi * i / hyperion.ledCount)) % 1.0
+                rgb = colorsys.hsv_to_rgb(hue, baseHsv[1], baseHsv[2])
+                colorData += bytearray((int(255*rgb[0]), int(255*rgb[1]), int(255*rgb[2])))
+
+            # set correct rotation after reinitialisation of the array
+            colorData = colorData[-colorDataIncrement*numberOfRotates:] + colorData[:-colorDataIncrement*numberOfRotates]
+
+        baseColorChangeStepCount += 1
+
+    # Calculate new colors
+    for i in range(hyperion.ledCount):
+        amplitude = max(0.0, math.sin(-amplitudePhase + 2*math.pi * blobs * i / hyperion.ledCount))
+        colors[3*i+0] = int(colorData[3*i+0] * amplitude)
+        colors[3*i+1] = int(colorData[3*i+1] * amplitude)
+        colors[3*i+2] = int(colorData[3*i+2] * amplitude)
+
+    # set colors
+    hyperion.setColor(colors)
+
+    # increment the phase
+    amplitudePhase = (amplitudePhase + amplitudePhaseIncrement) % (2*math.pi)
+
+    if rotateColors:
+        colorData = colorData[-colorDataIncrement:] + colorData[:-colorDataIncrement]
+        numberOfRotates = (numberOfRotates +  1) % hyperion.ledCount
+    rotateColors = not rotateColors
+
+    # sleep for a while
+    time.sleep(sleepTime)