From 86ae11f4c44fe1b37a325af5040b9438a6d5ed9d Mon Sep 17 00:00:00 2001
From: fishbone-git <kevindf@gmail.com>
Date: Tue, 10 Dec 2019 20:26:02 +0100
Subject: [PATCH] add sinelon effect

---
 wled00/FX.cpp | 25 +++++++++++++++++++++++++
 wled00/FX.h   |  9 ++++++---
 2 files changed, 31 insertions(+), 3 deletions(-)

diff --git a/wled00/FX.cpp b/wled00/FX.cpp
index 495c0397a..d0a34a28d 100644
--- a/wled00/FX.cpp
+++ b/wled00/FX.cpp
@@ -2348,4 +2348,29 @@ uint16_t WS2812FX::mode_BouncingBalls(void) {
   }
 
   return 20;
+}
+
+/*
+* Sinelon stolen from FASTLED examples
+*/
+uint16_t WS2812FX::mode_sinelon(void) {
+
+  fade_out(SEGMENT.intensity);
+  int pos = beatsin16(SEGMENT.speed/10,0,SEGLEN-1);
+  static int prevpos = 0;
+
+  // setRange seems great to use, but doesn't work here for some reason
+  if( pos < prevpos ) { 
+    for (uint16_t i = pos; i < prevpos; i++)
+    {
+      setPixelColor(i, color_from_palette(pos, false, false, 0));
+    }
+  } else {
+    for (uint16_t i = prevpos; i < pos; i++)
+    {
+      setPixelColor(i, color_from_palette(pos, false, false, 0));
+    }
+  }
+  prevpos = pos;
+  return FRAMETIME;
 }
\ No newline at end of file
diff --git a/wled00/FX.h b/wled00/FX.h
index 5642850a3..aabf70790 100644
--- a/wled00/FX.h
+++ b/wled00/FX.h
@@ -84,7 +84,7 @@
 #define IS_REVERSE      ((SEGMENT.options & REVERSE )     == REVERSE     )
 #define IS_SELECTED     ((SEGMENT.options & SELECTED)     == SELECTED    )
 
-#define MODE_COUNT  88
+#define MODE_COUNT  89
 
 #define FX_MODE_STATIC                   0
 #define FX_MODE_BLINK                    1
@@ -174,6 +174,7 @@
 #define FX_MODE_SPOTS                   85
 #define FX_MODE_SPOTS_FADE              86
 #define FX_MODE_BOUNCINGBALLS           87
+#define FX_MODE_SINELON                 88
 
 
 class WS2812FX {
@@ -319,6 +320,7 @@ class WS2812FX {
       _mode[FX_MODE_SPOTS]                   = &WS2812FX::mode_spots;
       _mode[FX_MODE_SPOTS_FADE]              = &WS2812FX::mode_spots_fade;
       _mode[FX_MODE_BOUNCINGBALLS]           = &WS2812FX::mode_BouncingBalls;
+      _mode[FX_MODE_SINELON]                 = &WS2812FX::mode_sinelon;
 
       _brightness = DEFAULT_BRIGHTNESS;
       currentPalette = CRGBPalette16(CRGB::Black);
@@ -500,7 +502,8 @@ class WS2812FX {
 	    mode_tri_static_pattern(void),
       mode_spots(void),
       mode_spots_fade(void),
-      mode_BouncingBalls(void);
+      mode_BouncingBalls(void),
+      mode_sinelon(void);
 
   private:
     NeoPixelWrapper *bus;
@@ -573,7 +576,7 @@ const char JSON_mode_names[] PROGMEM = R"=====([
 "Two Dots","Two Areas","Circus","Halloween","Tri Chase","Tri Wipe","Tri Fade","Lightning","ICU","Multi Comet",
 "Dual Scanner","Stream 2","Oscillate","Pride 2015","Juggle","Palette","Fire 2012","Colorwaves","Bpm","Fill Noise",
 "Noise 1","Noise 2","Noise 3","Noise 4","Colortwinkles","Lake","Meteor","Smooth Meteor","Railway","Ripple",
-"Twinklefox","Twinklecat","Halloween Eyes","Solid Pattern","Solid Pattern Tri","Spots","Spots Fade","Bouncing Balls"
+"Twinklefox","Twinklecat","Halloween Eyes","Solid Pattern","Solid Pattern Tri","Spots","Spots Fade","Bouncing Balls", "Sinelon"
 ])=====";