PartyJerk: minor code style improvements

* fix some too-long tabs
*author info added
* shrunk number of blank lines
* removed unused audio variables
* colorIndex : better accuracy by first doing multiply, then divide

wled00/FX.cpp

@@ -1921,21 +1921,20 @@ uint16_t mode_pride_2015(void) {
 }
 static const char _data_FX_MODE_PRIDE_2015[] PROGMEM = "Pride 2015@!;;";
 
+
 //////////////////////
 //       PARTYJERK        //
 //////////////////////
-
-
-
+// by  @tonyxforce
+// NB: This effects expects a palette that starts with black and then ramps up brightness. 
+//     Currently works best with the "color gradient" and the "colors 1&2" palettes
 uint16_t mode_partyjerk() {
-
   if (SEGENV.call == 0) {
     SEGMENT.fill(BLACK);    // clear LEDs
     SEGENV.aux0 = 0;
     SEGENV.aux1 = 0;
     SEGENV.step = 0;
   }
-
   /*
   * use of persistent variables:
   * aux0: hueDelay
@@ -1948,24 +1947,18 @@ uint16_t mode_partyjerk() {
     // add support for no audio
     um_data = simulateSound(SEGMENT.soundSim);
   }
-  uint8_t samplePeak = *(uint8_t*)um_data->u_data[3];
-  uint8_t *maxVol    =  (uint8_t*)um_data->u_data[6];
-  uint8_t *binNum    =  (uint8_t*)um_data->u_data[7];
-  float   volumeSmth   = *(float*)  um_data->u_data[0];
+  float   volumeSmth = *(float*)  um_data->u_data[0];
 
   SEGENV.aux0++;
-
   if (SEGENV.aux1 > 254) {
     SEGENV.aux1 = 0;
   }
-
   if (SEGENV.aux0 > map(SEGMENT.custom1, 0, 255, 0, 14)) {
     SEGENV.aux0 = 0;
     SEGENV.aux1++;
   }
 
   uint_fast32_t speed = 0;
-
   uint16_t counter = 0;
 
   if (volumeSmth * 2 > (255 - SEGMENT.intensity)) {
@@ -1975,30 +1968,24 @@ uint16_t mode_partyjerk() {
   };
 
   SEGENV.step += speed;
-
   counter = SEGENV.step >> 8;
 
-  for (uint16_t i = 0; i < SEGLEN; i++) {
-
-    uint8_t colorIndex = (i * 255 / SEGLEN) - counter;
-
-    uint32_t paletteColor = SEGMENT.color_from_palette(colorIndex, false, true, 255);
-
+  for (unsigned i = 0; i < SEGLEN; i++) {
+    uint8_t colorIndex = ((i * 255) / SEGLEN) - counter;
+    uint32_t paletteColor = SEGMENT.color_from_palette(colorIndex, false, PALETTE_MOVING_WRAP, 255);
     uint8_t r = R(paletteColor);
     uint8_t g = G(paletteColor);
     uint8_t b = B(paletteColor);
-
     uint8_t activeColor = max(r, max(g, b));
 
     CRGB rgb(CHSV(SEGENV.aux1, 255, activeColor));
-
-    SEGMENT.setPixelColor(i, rgb.r, rgb.g, rgb.b);
+    SEGMENT.setPixelColor((uint16_t)i, rgb.r, rgb.g, rgb.b);
   };
 
   return FRAMETIME;
 } // mode_partyjerk()
+static const char _data_FX_MODE_PARTYJERK[] PROGMEM = "Party jerk@Effect speed,Sensitivity,Color change speed,Effect speed active multiplier;!,!;!;1v;c1=8,c2=48,m12=0,si=0";
 
-static const char _data_FX_MODE_PARTYJERK[] PROGMEM = "Party jerk@Effect speed,Sensivity,Color change speed,Effect speed active multiplier;!,!;!;1v;c1=8,c2=48,m12=0,si=0";
 
 //eight colored dots, weaving in and out of sync with each other
 uint16_t mode_juggle(void) {
@@ -2025,7 +2012,7 @@ static const char _data_FX_MODE_JUGGLE[] PROGMEM = "Juggle@!,Trail;;!;;sx=64,ix=
 
 
 uint16_t mode_palette() {
-      uint16_t counter = 0;
+  uint16_t counter = 0;
   if (SEGMENT.speed != 0)
   {
     counter = (strip.now * ((SEGMENT.speed >> 3) +1)) & 0xFFFF;

wled00/FX.h

@@ -334,8 +334,7 @@ void strip_wait_until_idle(String whoCalledMe); // WLEDMM implemented in FX_fcn.
 #define FX_MODE_ROCKTAVES              185
 #define FX_MODE_2DAKEMI                186
 #define FX_MODE_ARTIFX                 187 //WLEDMM ARTIFX
-
-#define FX_MODE_PARTYJERK                    188
+#define FX_MODE_PARTYJERK              188
 
 #define MODE_COUNT                     189