refactor: ♻️ cleaned up local variables

lick.lua

@@ -1,7 +1,7 @@
 -- lick.lua
 --
 -- simple LIVECODING environment for Löve
--- overwrites love.run, pressing all errors to the terminal/console
+-- overwrites love.run, pressing all errors to the terminal/console or overlays it
 
 local lick = {}
 lick.file = "main.lua"
@@ -9,9 +9,13 @@ lick.debug = false
 lick.reset = false
 lick.clearFlag = false
 lick.sleepTime = love.graphics.newCanvas and 0.001 or 1
+lick.showReloadMessage = true
 
+local drawok_old, updateok_old, loadok_old
 local last_modified = 0
+local debugoutput = nil
 
+-- Error handler wrapping for pcall
 local function handle(err)
     return "ERROR: " .. err
 end
@@ -21,69 +25,72 @@ local function load()
     last_modified = 0
 end
 
-local function update(dt)
+local function checkFileUpdate()
     local info = love.filesystem.getInfo(lick.file)
-    if info and last_modified < info.modtime then
+    if not info or last_modified >= info.modtime then
+        return
+    end
     last_modified = info.modtime
-        success, chunk = pcall(love.filesystem.load, lick.file)
+    local success, chunk = pcall(love.filesystem.load, lick.file)
     if not success then
         print(tostring(chunk))
-            lick.debugoutput = chunk .. "\n"
+        debugoutput = chunk .. "\n"
     end
-        ok,err = xpcall(chunk, handle)
+    local ok, err = xpcall(chunk, handle)
 
     if not ok then
         print(tostring(err))
-            if lick.debugoutput then
-                lick.debugoutput = (lick.debugoutput .."ERROR: ".. err .. "\n" )
+        if debugoutput then
+            debugoutput = (debugoutput .. "ERROR: " .. err .. "\n")
         else
-                lick.debugoutput =  err .. "\n" 
+            debugoutput = err .. "\n"
         end
     else
-            print("CHUNK LOADED\n")
-            lick.debugoutput = nil
+        if lick.showReloadMessage then print("CHUNK LOADED\n") end
+        debugoutput = nil
     end
     if lick.reset then
-            loadok, err = xpcall(love.load, handle)
+        local loadok, err = xpcall(love.load, handle)
         if not loadok and not loadok_old then
-                print("ERROR: "..tostring(err))
-                if lick.debugoutput then
-                    lick.debugoutput = (lick.debugoutput .."ERROR: ".. err .. "\n" ) 
+            print("ERROR: " .. tostring(err))
+            if debugoutput then
+                debugoutput = (debugoutput .. "ERROR: " .. err .. "\n")
             else
-                    lick.debugoutput =  err .. "\n"
+                debugoutput = err .. "\n"
             end
             loadok_old = not loadok
         end
     end
-    end
+end
 
-    updateok, err = pcall(love.update,dt)
+local function update(dt)
+    checkFileUpdate()
+    local updateok, err = pcall(love.update, dt)
     if not updateok and not updateok_old then
-        print("ERROR: "..tostring(err))
-        if lick.debugoutput then
-            lick.debugoutput = (lick.debugoutput .."ERROR: ".. err .. "\n" ) 
+        print("ERROR: " .. tostring(err))
+        if debugoutput then
+            debugoutput = (debugoutput .. "ERROR: " .. err .. "\n")
         else
-            lick.debugoutput =  err .. "\n"
+            debugoutput = err .. "\n"
         end
     end
-  
     updateok_old = not updateok
 end
 
 local function draw()
-    drawok, err = xpcall(love.draw, handle)
+    local drawok, err = xpcall(love.draw, handle)
     if not drawok and not drawok_old then
         print(tostring(err))
-        if lick.debugoutput then
-            lick.debugoutput = (lick.debugoutput .. err .. "\n" ) 
+        if debugoutput then
+            debugoutput = (debugoutput .. err .. "\n")
         else
-            lick.debugoutput =  err .. "\n"
+            debugoutput = err .. "\n"
         end
     end
 
-    if lick.debug and lick.debugoutput then 
-        love.graphics.setColor(1,1,1,0.8)
-        love.graphics.printf(lick.debugoutput, (love.graphics.getWidth()/2)+50, 0, 400, "right")
+    if lick.debug and debugoutput then
+        love.graphics.setColor(1, 1, 1, 0.8)
+        love.graphics.printf(debugoutput, (love.graphics.getWidth() / 2) + 50, 0, 400, "right")
     end
     drawok_old = not drawok
 end
@@ -91,7 +98,8 @@ end
 
 function love.run()
     math.randomseed(os.time())
-    math.random() math.random()
+    math.random()
+    math.random()
     load()
 
     local dt = 0
@@ -101,7 +109,7 @@ function love.run()
         -- Process events.
         if love.event then
             love.event.pump()
-            for e,a,b,c,d in love.event.poll() do
+            for e, a, b, c, d in love.event.poll() do
                 if e == "quit" then
                     if not love.quit or not love.quit() then
                         if love.audio then
@@ -111,7 +119,7 @@ function love.run()
                     end
                 end
 
-            love.handlers[e](a,b,c,d)
+                love.handlers[e](a, b, c, d)
             end
         end