[WIP] Diggy Experimental (foundation for multi surface diggy)

features/player_stats.lua

@@ -133,7 +133,12 @@ local function robot_built_entity()
 end
 
 local function biter_kill_counter(event)
-    if event.entity.force.name == 'enemy' then
+    local entity = event.entity
+    if not entity or not entity.valid then
+        return
+    end
+
+    if entity.force.name == 'enemy' then
         change_for_global(aliens_killed_name, 1)
     end
 end

map_gen/maps/diggy/feature/coin_gathering.lua

@@ -59,6 +59,10 @@ function CoinGathering.register(config)
 
     Event.add(defines.events.on_entity_died, function (event)
         local entity = event.entity
+        if not entity or not entity.valid then
+            return
+        end
+
         local force = entity.force
         if force.name ~= 'enemy' or random() > alien_coin_drop_chance then
             return

map_gen/maps/diggy_experimental.lua

@@ -0,0 +1 @@
+require 'map_gen.maps.diggy_experimental.scenario'.register()

map_gen/maps/diggy_experimental/feature/antigrief.lua

@@ -0,0 +1,56 @@
+-- dependencies
+local Event = require 'utils.event'
+local Global = require 'utils.global'
+local CaveCollapse = require 'map_gen.maps.diggy_experimental.feature.diggy_cave_collapse'
+local Report = require 'features.report'
+local format = string.format
+
+-- this
+local Antigrief = {}
+
+local global_primitives = {}
+
+local allowed_collapses_first_hour = 0
+
+local player_collapses = {}
+local jailed_players = {}
+
+Global.register({
+    player_collapses = player_collapses,
+    jailed_players = jailed_players,
+    global_primitives = global_primitives,
+}, function(tbl)
+    player_collapses = tbl.player_collapses
+    jailed_players = tbl.jailed_players
+    global_primitives = tbl.global_primitives
+end)
+
+global_primitives.autojail = false
+global_primitives.last_collapse = 0
+
+--[[--
+    Registers all event handlers.
+]]
+function Antigrief.register(config)
+    global_primitives.autojail = config.autojail
+    allowed_collapses_first_hour = config.allowed_collapses_first_hour
+end
+
+
+Event.add(CaveCollapse.events.on_collapse, function(event)
+    local player_index = event.player_index
+    if player_index and global_primitives.last_collapse ~= game.tick then
+        global_primitives.last_collapse = game.tick
+        local count = player_collapses[player_index] or 0
+        count = count + 1
+        player_collapses[player_index] = count
+        local player = game.get_player(player_index)
+        if global_primitives.autojail and count > allowed_collapses_first_hour and player.online_time < 216000 and not jailed_players[player_index] then
+            Report.jail(player)
+            Report.report(nil, player, format('Caused %d collapses in the first hour', count))
+            jailed_players[player_index] = true
+        end
+    end
+end)
+
+return Antigrief