chore: refactor time functions into an util

sonic-radiance.love/core/utils/init.lua

@@ -29,5 +29,6 @@ return {
   graphics    = require(cwd .. "graphics"),
   filesystem  = require(cwd .. "filesystem"),
   table       = require(cwd .. "table"),
-  string      = require(cwd .. "string")
+  string      = require(cwd .. "string"),
+  time        = require(cwd .. "time"),
 }

sonic-radiance.love/core/utils/time.lua

@@ -0,0 +1,28 @@
+local Math = require "core.utils.math"
+
+Time = {}
+
+Time.HOURS = 3600
+Time.MINUTES = 60
+Time.SEPARATOR = ":"
+
+function Time.timestamp(hour, minute, seconds)
+    return (hour * Time.HOURS) + (minute * Time.MINUTES) + seconds
+end
+
+function Time.getFields(timestamp)
+    local hours = math.floor(timestamp / Time.HOURS)
+    local minutes = math.floor((timestamp % Time.HOURS) / Time.MINUTES)
+    local seconds = math.floor((timestamp % Time.MINUTES))
+    return hours, minutes, seconds
+end
+
+function Time.toString(timestamp)
+    local hours, minutes, seconds = Time.getFields(timestamp)
+    local str = Math.numberToString(hours, 2)
+    str = str .. Time.SEPARATOR .. Math.numberToString(minutes, 2)
+    str = str .. Time.SEPARATOR .. Math.numberToString(seconds, 2)
+    return str
+end
+
+return Time

sonic-radiance.love/game/init.lua

@@ -199,41 +199,11 @@ function Game:update(dt)
 end
 
 function Game:getTime()
-  local hours, minutes, seconds
-  seconds = math.floor(self.gametime)
-  minutes = math.floor(seconds / 60)
-  hours = math.floor(minutes / 60)
-  seconds = seconds % 60
-  minutes = minutes % 60
-  hours = hours
-
-  return seconds, minutes, hours
+  return utils.time.getFields(self.gametime)
 end
 
 function Game:getTimeString() 
-  local string
-  local seconds, minutes, hours = self:getTime()
-  local stringSeconds, stringMinutes, stringHours
-  if (seconds <= 9) then
-    stringSeconds = 0 .. seconds
-  else
-    stringSeconds = seconds
-  end
-
-  if (minutes <= 9) then
-    stringMinutes = 0 .. minutes
-  else
-    stringMinutes = minutes
-  end
-
-  if (hours <= 9) then
-    stringHours = 0 .. hours
-  else
-    stringHours = hours
-  end
-
-  string = stringHours .. ":" .. stringMinutes .. ":" .. stringSeconds
-  return string
+  return utils.time.toString(self.gametime)
 end
 
 function Game:printTime()