From 40d303f7b5040055028fd3d8abc23dc88b037dcf Mon Sep 17 00:00:00 2001
From: fruchti <fruchti@gvfr.de>
Date: Thu, 16 Jul 2020 18:37:15 +0200
Subject: [PATCH] Generate blinking pattern based on LED index

---
 build-number.txt |  2 +-
 src/main.c       | 52 +++++++++++++++++++++++++++++++++++++++++++-----
 src/main.h       |  2 ++
 3 files changed, 50 insertions(+), 6 deletions(-)

diff --git a/build-number.txt b/build-number.txt
index ea80947..95de1ee 100644
--- a/build-number.txt
+++ b/build-number.txt
@@ -1 +1 @@
-288
+297
diff --git a/src/main.c b/src/main.c
index b9d606f..781c397 100644
--- a/src/main.c
+++ b/src/main.c
@@ -13,19 +13,61 @@ int main(void)
 
     LED_Init();
 
-    uint8_t *data = (uint8_t*)LED_PixelData;
+    unsigned int counter = 0;
+    const unsigned int blink_period = 1000;
+    const unsigned int group_size = 6;
     while(1)
     {
         __WFI();
         LightSensor_Poll();
-        uint8_t brightness = LightSensor_RelativeBrightness * 255;
+
         if(LED_FrameFlag)
         {
-            for(int i = 0; i < LED_COLUMNS * LED_ROWS; i++)
+            memset(LED_PixelData, 0, sizeof(LED_PixelData));
+
+            for(unsigned int i = 0; i < LED_COUNT; i++)
             {
-                data[i] = brightness;
+                uint8_t brightness = 0;
+                if((counter / blink_period) <= (i % group_size))
+                {
+                    if(counter / (blink_period / 2) % 2)
+                    {
+                        brightness = 30;
+                    }
+                }
+
+                switch(i / group_size)
+                {
+                    case 0:
+                        LED_PixelData[i].r = brightness;
+                        break;
+                    case 1:
+                        LED_PixelData[i].g = brightness;
+                        break;
+                    case 2:
+                        LED_PixelData[i].b = brightness;
+                        break;
+                    case 3:
+                        LED_PixelData[i].r = brightness;
+                        LED_PixelData[i].g = brightness;
+                        break;
+                    case 4:
+                        LED_PixelData[i].g = brightness;
+                        LED_PixelData[i].b = brightness;
+                        break;
+                    case 5:
+                        LED_PixelData[i].b = brightness;
+                        LED_PixelData[i].r = brightness;
+                        break;
+                }
+
+                counter++;
+                if(counter > blink_period * (group_size + 2))
+                {
+                    counter = 0;
+                }
             }
-            
+
             LED_FrameFlag = false;
             LED_Commit();
         }
diff --git a/src/main.h b/src/main.h
index 3f1bfc6..48ce191 100644
--- a/src/main.h
+++ b/src/main.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include <string.h>
+
 #include "stm32f030x6.h"
 #include "buildid.h"
 #include "led.h"