new module - anti spam

utils/spam_protection.lua

@@ -0,0 +1,86 @@
+local Event = require 'utils.event'
+local Global = require 'utils.global'
+local Public = {}
+
+local this = {
+    prevent_spam = {}, -- the default table where all player indexes will be stored
+    default_tick = 15 -- this defines the default tick to check weather or not a user is spamming a button.
+}
+
+Global.register(
+    this,
+    function(t)
+        this = t
+    end
+)
+
+function Public.reset_spam_table()
+    local players = game.connected_players
+    for i = 1, #players do
+        local player = players[i]
+        this.prevent_spam[player.index] = game.tick
+    end
+end
+
+function Public.set_new_value(player)
+    if this.prevent_spam[player.index] then
+        this.prevent_spam[player.index] = game.tick
+        return this.prevent_spam[player.index]
+    end
+    return false
+end
+
+function Public.is_spamming(player, value_to_compare)
+    if not this.prevent_spam[player.index] then
+        return
+    end
+
+    local tick = game.tick
+    local value = value_to_compare or this.default_tick
+    if this.prevent_spam[player.index] then
+        if (tick - this.prevent_spam[player.index]) > value then
+            Public.set_new_value(player)
+            return false -- is not spamming
+        else
+            return true -- is spamming
+        end
+    end
+    return false
+end
+
+function Public.get(key)
+    if key then
+        return this[key]
+    else
+        return this
+    end
+end
+
+function Public.set(key, value)
+    if key and (value or value == false) then
+        this[key] = value
+        return this[key]
+    elseif key then
+        return this[key]
+    else
+        return this
+    end
+end
+
+Event.add(
+    defines.events.on_player_joined_game,
+    function(event)
+        local player = game.get_player(event.player_index)
+
+        if not this.prevent_spam[player.index] then
+            this.prevent_spam[player.index] = game.tick
+        end
+    end
+)
+Event.on_init(
+    function()
+        Public.reset_spam_table()
+    end
+)
+
+return Public