small rewrite

lua/sca_main.lua

@@ -3,23 +3,16 @@ local isRunning = false
 local summerTime = nil
 
 local function sca_setup_timezone()
-    local time = os.time()                        // Year in seconds
+    local time = os.time()
-    local currentYear = 1970 + (math.floor(time / 31536000))
+    local daysPastUnixYear = math.floor(time / 86400) // Unix began on 01.01.1970
-    local leapYears = 0
+    local year = 1970
-    local isLeapYear = tobool((currentYear % 4 == 0) and (currentYear % 100 != 0 and currentYear % 400 == 0))
+    local month = 0
+    local day = 0
+    local weekDay = daysPastUnixYear % 7 // 0 = thursday, 1 = friday, 2 = saturday, 3 = sunday, 4 = monday, 5 = tuesday, 6 = wensday. 01.01.1970 was on thursday
 
-    for (i = 1970, currentYear, 1) do
+    local daysPerMonth = {
-        if ((i % 4 == 0) and (i % 100 != 0 and i % 400 == 0)) then
-            leapYears = leapYears + 1
-        end
-    end
-                                // Year in seconds                 // Day in seconds
-    local yearBeginTimestamp = (31536000 * (currentYear - 1970)) + (86400 * leapYears)
-    local daysPastYearBegin = math.floor((yearBeginTimestamp - time) / 86400)
-
-    local daysPerMonth =
-    {
         [0] = 31, // January
+        [1] = 28, // February
         [2] = 31, // March
         [3] = 30, // April
         [4] = 31, // May
@@ -27,19 +20,41 @@ local function sca_setup_timezone()
         [6] = 31, // July
         [7] = 31, // August
         [8] = 30, // September
-        [9] = 31, // October
+        [9] = 31, // Ocotober
-        [10] = 30, // November
+        [10] = 30, // Novmeber
         [11] = 31 // December
     }
 
-    local daysInTotal = 0
+    while (daysPastUnixYear > 364) do
-    for (i = 0, 11, 1) do
+        if (year % 4 == 0 && (year % 400 == 0 && year % 100 != 0)) then
-        daysInTotal = daysInTotal + daysPerMonth[i]
+            daysPastUnixYear = daysPastUnixYear - 366
-        if (daysPastYearBegin / daysInTotal > 1) then
-            continue 
         else
-            local currentDay = (yearBeginTimestamp + (daysInTotal * 86400)) - yearBeginTimestamp 
+            daysPastUnixYear = daysPastUnixYear - 365 
         end
+        year = year + 1
+    end
+
+    for (month, 11, 1) do
+       if (daysPastUnixYear - daysPerMonth[i] >= daysPerMonth[i]) then
+            if (i == 2 && (year % 4 == 0 && (year % 400 == 0 && year % 100 != 0))) then
+                daysPastUnixYear = daysPastUnixYear - (daysPerMonth[i] + 1)
+            else
+                daysPastUnixYear = daysPastUnixYear - daysPerMonth[i]
+            end
+        else
+            day = daysPastUnixYear - 1
+            break
+        end
+    end
+    
+    local hourInSeconds = time % 86400
+    
+    if (month >= 2 && month <= 9) then
+    // Summer time    
+    
+    else
+    // Winter time
+
     end
 end