fix(client/zones): use arrays for temporary zone tables

Resolves #682.

imports/zones/client.lua

@@ -98,20 +98,22 @@ end
 
 ---@type table<number, CZone>
 local insideZones = {}
----@type table<number, CZone>
-local enteringZones = {}
----@type table<number, CZone>
-local exitingZones = {}
-local enteringSize = 0
-local exitingSize = 0
+
+---@type CZone[] | Array
+local exitingZones = lib.array:new()
+
+---@type CZone[] | Array
+local enteringZones = lib.array:new()
+
 local tick
 local glm_polygon_contains = glm.polygon.contains
 
-local function removeZone(self)
-    Zones[self.id] = nil
-    insideZones[self.id] = nil
-    enteringZones[self.id] = nil
-    exitingZones[self.id] = nil
+local function removeZone(zone)
+    Zones[zone.id] = nil
+    insideZones[zone.id] = nil
+
+    table.remove(exitingZones, exitingZones:indexOf(zone))
+    table.remove(enteringZones, enteringZones:indexOf(zone))
 end
 
 CreateThread(function()
@@ -134,8 +136,7 @@ CreateThread(function()
                     zone.insideZone = true
 
                     if zone.onEnter then
-                        enteringSize += 1
-                        enteringZones[enteringSize] = zone
+                        enteringZones:push(zone)
                     end
 
                     if zone.inside or zone.debug then
@@ -148,8 +149,7 @@ CreateThread(function()
                     insideZones[zone.id] = nil
 
                     if zone.onExit then
-                        exitingSize += 1
-                        exitingZones[exitingSize] = zone
+                        exitingZones:push(zone)
                     end
                 end
 
@@ -159,6 +159,9 @@ CreateThread(function()
             end
         end
 
+        local exitingSize = #exitingZones
+        local enteringSize = #enteringZones
+
         if exitingSize > 0 then
             table.sort(exitingZones, function(a, b)
                 return a.distance > b.distance
@@ -168,7 +171,6 @@ CreateThread(function()
                 exitingZones[i]:onExit()
             end
 
-            exitingSize = 0
             table.wipe(exitingZones)
         end
 
@@ -181,7 +183,6 @@ CreateThread(function()
                 enteringZones[i]:onEnter()
             end
 
-            enteringSize = 0
             table.wipe(enteringZones)
         end