From fbcc46ed28ce0d4b9a87ec080c4f71a952fc5830 Mon Sep 17 00:00:00 2001
From: Paulchen Panther <Paulchen--Panter@gmx.net>
Date: Thu, 20 Dec 2018 14:49:34 +0100
Subject: [PATCH] Wave effect

---
 effects/Seawaves.json | 47 ++++++++++++++++++++++++++
 effects/Waves.json    |  8 +++++
 effects/waves.py      | 77 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 132 insertions(+)
 create mode 100644 effects/Seawaves.json
 create mode 100644 effects/Waves.json
 create mode 100644 effects/waves.py

diff --git a/effects/Seawaves.json b/effects/Seawaves.json
new file mode 100644
index 00000000..cf3c30c9
--- /dev/null
+++ b/effects/Seawaves.json
@@ -0,0 +1,47 @@
+{
+    "args": {
+        "center_x": 1.25,
+        "center_y": -0.25,
+        "colors": [
+            [
+                8,
+                0,
+                255
+            ],
+            [
+                0,
+                161,
+                255
+            ],
+            [
+                0,
+                222,
+                255
+            ],
+            [
+                0,
+                153,
+                255
+            ],
+            [
+                38,
+                0,
+                255
+            ],
+            [
+                0,
+                199,
+                255
+            ]
+        ],
+        "random-center": false,
+        "reverse": false,
+        "reverse_time": 0,
+        "rotation_time": 60,
+        "smoothing-custom-settings": true,
+        "smoothing-time_ms": 200,
+        "smoothing-updateFrequency": 25
+    },
+    "name": "Sea waves",
+    "script": "waves.py"
+}
diff --git a/effects/Waves.json b/effects/Waves.json
new file mode 100644
index 00000000..b4ae8b14
--- /dev/null
+++ b/effects/Waves.json
@@ -0,0 +1,8 @@
+{
+	"name" : "Waves with Color",
+	"script" : "waves.py",
+	"args" :
+	{
+		"reverse" : false
+	}
+}
diff --git a/effects/waves.py b/effects/waves.py
new file mode 100644
index 00000000..b253ec79
--- /dev/null
+++ b/effects/waves.py
@@ -0,0 +1,77 @@
+import hyperion, time, math, random
+
+randomCenter = bool(hyperion.args.get('random-center', False))
+centerX      = float(hyperion.args.get('center_x', -0.15))
+centerY      = float(hyperion.args.get('center_y', -0.25))
+rotationTime = float(hyperion.args.get('rotation_time', 90))
+colors       = hyperion.args.get('colors', ((255,0,0),(255,255,0),(0,255,0),(0,255,255),(0,0,255),(255,0,255)))
+reverse      = bool(hyperion.args.get('reverse', False))
+reverseTime  = int(hyperion.args.get('reverse_time', 0))
+#rotate       = bool(hyperion.args.get('rotate', True))
+positions    = []
+
+# calc center if random
+if randomCenter:
+	centerX = random.uniform(0.0, 1.0)
+	centerY = random.uniform(0.0, 1.0)
+
+rCenterX   = int(round(float(hyperion.imageWidth())*centerX))
+rCenterY   = int(round(float(hyperion.imageHeight())*centerY))
+
+#calc interval
+sleepTime = max(1/(255/rotationTime), 0.016)
+
+#calc diagonal
+if centerX < 0.5:
+	cX = 1.0-centerX
+else:
+	cX = 0.0+centerX
+
+if centerY < 0.5:
+	cY = 1.0-centerY
+else:
+	cY = 0.0+centerY
+
+diag = int(round(math.sqrt(((cX*hyperion.imageWidth())**2)+((cY*hyperion.imageHeight())**2))))
+# some diagonal overhead
+diag = int(diag*1.3)
+
+# calc positions
+pos = 0
+step = int(255/len(colors))
+for entry in colors:
+	positions.append(pos)
+	pos += step
+
+# target time
+targetTime = time.time()+float(reverseTime)
+
+#hyperion.imageCOffset(int(hyperion.imageWidth()/2), int(hyperion.imageHeight()/2))
+
+while not hyperion.abort():
+	# verify reverseTime, randomize reverseTime based on reverseTime up to reversedTime*2
+	if reverseTime >= 1:
+		now = time.time()
+		if now > targetTime:
+			reverse = not reverse
+			targetTime = time.time()+random.uniform(float(reverseTime), float(reverseTime*2.0))
+	# apply rotate
+	#if rotate:
+	#	hyperion.imageCRotate(1)		
+	# prepare bytearray with colors and positions
+	gradientBa = bytearray()
+	it = 0
+	for color in colors:
+		gradientBa += bytearray((positions[it],color[0],color[1],color[2]))
+		it += 1
+
+	hyperion.imageRadialGradient(rCenterX,rCenterY, diag, gradientBa,0)
+	
+	# increment positions
+	for i, pos in enumerate(positions):
+		if reverse:
+			positions[i] = pos - 1 if pos >= 1 else 255
+		else:
+			positions[i] = pos + 1 if pos <= 254 else 0
+	hyperion.imageShow()
+	time.sleep(sleepTime)