Initial Commit

SCRIPTS/RGBLED/Pback.lua

@@ -0,0 +1,68 @@
+local function init()
+    colorChangeTime = getTime()  -- Initialize time
+    phase = 0
+    currentLed = 0  -- Current lit LED position
+    scroll_oldtime = getTime()  -- Initialize scroll_oldtime
+    scroll_cycle = 0  -- Initialize scroll_cycle
+end
+
+-- Function to generate smooth cyclic colors
+local function getColor(phase, length)
+    local position = (phase % length) / length
+    local r, g, b = 0, 0, 0
+    local maxBrightness = 255  -- Maximum brightness value
+
+    -- RGB color transition: red -> green -> blue -> red
+    if position < 1/3 then
+        -- From red to green
+        r = maxBrightness * (1 - 3 * position)
+        g = maxBrightness * (3 * position)
+    elseif position < 2/3 then
+        -- From green to blue
+        position = position - 1/3
+        g = maxBrightness * (1 - 3 * position)
+        b = maxBrightness * (3 * position)
+    else
+        -- From blue to red
+        position = position - 2/3
+        b = maxBrightness * (1 - 3 * position)
+        r = maxBrightness * (3 * position)
+    end
+
+    -- Skip colors that are close to the background color
+    local bg_r, bg_g, bg_b = 72, 0, 72  -- Background color
+    local threshold = 30  -- Color difference threshold
+    if math.abs(r - bg_r) < threshold and math.abs(g - bg_g) < threshold and math.abs(b - bg_b) < threshold then
+        return getColor((phase + 1) % length, length)  -- Skip this color and get the next one
+    end
+
+    return r, g, b
+end
+
+local colorPhase = 0  -- Initialize color phase
+
+local function run()
+    for i=LED_STRIP_LENGTH - 1, 0, -1 do  -- Reverse iteration
+        if (i == scroll_cycle) then
+            local r, g, b = getColor(colorPhase, 255)
+            setRGBLedColor(i, r, g, b)
+        else
+            setRGBLedColor(i, 72, 0, 72)
+        end
+    end
+    if ((getTime() - scroll_oldtime) > 8) then
+        scroll_oldtime = getTime()
+        scroll_cycle = scroll_cycle - 1  -- Decrement scroll_cycle
+        if (scroll_cycle < 0) then
+            scroll_cycle = LED_STRIP_LENGTH - 1  -- Reset scroll_cycle to the end of the strip
+        end
+    end
+    colorPhase = (colorPhase + 1) % 255  -- Update color phase
+    applyRGBLedColors()
+end
+
+local function background()
+    -- Called periodically while the Special Function switch is off
+end
+
+return { run=run, background=background, init=init }