Mtn v3 - spawners logic

maps/mountain_fortress_v3/entities.lua

@@ -959,6 +959,8 @@ local function on_entity_died(event)
         return
     end
 
+    local unit_number = entity.unit_number
+
     local cause = event.cause
 
     local map_name = 'mtn_v3'
@@ -971,6 +973,11 @@ local function on_entity_died(event)
         entity = entity
     }
 
+    local enemy_spawners = Public.get('enemy_spawners')
+    if enemy_spawners.spawners[unit_number] then
+        enemy_spawners.spawners[unit_number] = nil
+    end
+
     on_entity_removed(d)
 
     local player
@@ -1383,6 +1390,40 @@ function Public.loco_died(invalid_locomotive)
     end
 end
 
+local function on_entity_spawned(event)
+    local enemy_spawners = Public.get('enemy_spawners')
+    if not enemy_spawners.enabled then
+        return
+    end
+
+    local spawner = event.spawner
+    if not spawner or not spawner.valid then
+        return
+    end
+
+    local unit_number = spawner.unit_number
+    local position = spawner.position
+    if not enemy_spawners.spawners[unit_number] then
+        enemy_spawners.spawners[unit_number] = {
+            entity = spawner,
+            count = 0
+        }
+    end
+
+    local surface = spawner.surface
+
+    enemy_spawners.spawners[unit_number].count = enemy_spawners.spawners[unit_number].count + 1
+
+    if enemy_spawners.spawners[unit_number].count >= 100 then
+        local entity = enemy_spawners.spawners[unit_number].entity
+        if entity and entity.valid then
+            surface.create_entity({name = 'explosion', position = position})
+            entity.destroy()
+            enemy_spawners.spawners[unit_number] = nil
+        end
+    end
+end
+
 local function on_built_entity(event)
     local entity = event.created_entity
     if not entity.valid then
@@ -1614,6 +1655,7 @@ Public.get_random_weighted = get_random_weighted
 
 Event.add_event_filter(defines.events.on_entity_damaged, {filter = 'final-damage-amount', comparison = '>', value = 0})
 Event.add(defines.events.on_entity_damaged, on_entity_damaged)
+Event.add(defines.events.on_entity_spawned, on_entity_spawned)
 Event.add(defines.events.on_player_repaired_entity, on_player_repaired_entity)
 Event.add(defines.events.on_player_mined_entity, on_player_mined_entity)
 Event.add(defines.events.on_robot_mined_entity, on_robot_mined_entity)

maps/mountain_fortress_v3/functions.lua

@@ -340,6 +340,24 @@ local function do_beams_away()
     end
 end
 
+local function do_clear_enemy_spawners()
+    local tick = game.tick
+    if tick % 1000 ~= 0 then
+        return
+    end
+
+    local enemy_spawners = Public.get('enemy_spawners')
+    if not enemy_spawners.enabled then
+        return
+    end
+
+    for unit_number, spawner in pairs(enemy_spawners.spawners) do
+        if not spawner.entity or not spawner.entity.valid then
+            enemy_spawners.spawners[unit_number] = nil
+        end
+    end
+end
+
 local function do_artillery_turrets_targets()
     local art_table = this.art_table
     local index = art_table.index
@@ -428,6 +446,7 @@ local function tick()
     do_magic_fluid_crafters()
     do_artillery_turrets_targets()
     do_beams_away()
+    do_clear_enemy_spawners()
 end
 
 Public.deactivate_callback =

maps/mountain_fortress_v3/table.lua

@@ -134,6 +134,10 @@ function Public.reset_main_table()
     --!grief prevention
     this.enable_arties = 6 -- default to callback 6
     --!snip
+    this.enemy_spawners = {
+        spawners = {},
+        enabled = false
+    }
     this.poison_deployed = false
     this.robotics_deployed = false
     this.upgrades = {