From 2b0a38d25d517734fa7cfa37fb08b2dbcb8afdc9 Mon Sep 17 00:00:00 2001
From: Def3nder <33399267+Def3nder@users.noreply.github.com>
Date: Tue, 28 Jan 2020 13:47:18 +0100
Subject: [PATCH] Percent Effect with speed-slider (#637)

---
 wled00/FX.cpp | 29 ++++++++++++++++-------------
 1 file changed, 16 insertions(+), 13 deletions(-)

diff --git a/wled00/FX.cpp b/wled00/FX.cpp
index c3b8ed09..5c24efdb 100644
--- a/wled00/FX.cpp
+++ b/wled00/FX.cpp
@@ -2985,23 +2985,26 @@ uint16_t WS2812FX::mode_plasma(void) {
 uint16_t WS2812FX::mode_percent(void) {
 
 	uint8_t percent = max(0, min(100, SEGMENT.intensity));
-
-	float active_float = SEGLEN * percent / 100.0;
-	uint16_t active_leds = active_float;
-	uint16_t active_part = (active_float - active_leds) * 255;
-	CRGB color;
-
-	for (uint16_t i = 0; i < SEGLEN; i++) {
-		if (i < active_leds) {
+	uint16_t active_leds = SEGLEN * percent / 100.0;
+  
+  if (SEGENV.call == 0) SEGENV.step = 0;
+  uint8_t size = (1 + ((SEGMENT.speed * SEGLEN) >> 11)) & 0xFF ;
+    
+  for (uint16_t i = 0; i < SEGLEN; i++) {
+		if (i < SEGENV.step) {
 			setPixelColor(i, color_from_palette(i, true, PALETTE_SOLID_WRAP, 0));
 		}
-		else if (i == active_leds) {
-			setPixelColor(i, color_from_palette(i, true, PALETTE_SOLID_WRAP, 0, active_part));
-		}
 		else {
 			setPixelColor(i, SEGCOLOR(1));
 		}
-	}
+	} 
+  if(active_leds > SEGENV.step) {
+    SEGENV.step += size;
+    if (SEGENV.step > active_leds) SEGENV.step = active_leds;
+  } else if (active_leds < SEGENV.step) {
+    SEGENV.step -= size;
+    if (SEGENV.step < active_leds) SEGENV.step = active_leds;
+  }
 
-	return FRAMETIME;
+ 	return FRAMETIME;
 }
\ No newline at end of file