Made the buildable silos in frontier mode a proper option. Defaults to player buildable because that works better for multiple forces.

control.lua

@@ -299,9 +299,9 @@ end)
 script.on_event(defines.events.on_research_finished, function(event)
     
     -- Never allows players to build rocket-silos in "frontier" mode.
-    -- if global.ocfg.frontier_rocket_silo then
-    --     RemoveRecipe(event.research.force, "rocket-silo")
-    -- end
+    if global.ocfg.frontier_rocket_silo and not global.ocfg.frontier_allow_build then
+        RemoveRecipe(event.research.force, "rocket-silo")
+    end
 
     if LOCK_GOODIES_UNTIL_ROCKET_LAUNCH and 
         (not global.satellite_sent or not global.satellite_sent[event.research.force.name]) then

example-config.lua

@@ -389,6 +389,13 @@ ENABLE_SILO_VISION = true
 ENABLE_SILO_BEACONS = false
 ENABLE_SILO_RADAR = false
 
+-- Allow silos to be built by the player, but forces them to build in
+-- the fixed locations. If this is false, silos are built and assigned
+-- only to the main force. This can cause a problem for non main forces
+-- when playing with LOCK_GOODIES_UNTIL_ROCKET_LAUNCH enabled.
+ENABLE_SILO_PLAYER_BUILD = true
+
+
 --------------------------------------------------------------------------------
 -- Long Reach Options
 --------------------------------------------------------------------------------

lib/frontier_silo.lua

@@ -110,9 +110,11 @@ local function CreateRocketSilo(surface, siloPosition, force)
     surface.set_tiles(tiles, true)
 
     -- Create indestructible silo and assign to a force
-    -- local silo = surface.create_entity{name = "rocket-silo", position = {siloPosition.x+0.5, siloPosition.y}, force = force}
-    -- silo.destructible = false
-    -- silo.minable = false
+    if not global.ocfg.frontier_allow_build then
+        local silo = surface.create_entity{name = "rocket-silo", position = {siloPosition.x+0.5, siloPosition.y}, force = force}
+        silo.destructible = false
+        silo.minable = false
+    end
 
     -- TAG it on the main force at least.
     game.forces[global.ocfg.main_force].add_chart_tag(game.surfaces[GAME_SURFACE_NAME],

lib/oarc_global_cfg.lua

@@ -65,6 +65,7 @@ function InitOarcConfig()
         global.ocfg.frontier_fixed_pos = SILO_FIXED_POSITION
         global.ocfg.frontier_pos_table = SILO_POSITIONS
         global.ocfg.frontier_silo_vision = ENABLE_SILO_VISION
+        global.ocfg.frontier_allow_build = ENABLE_SILO_PLAYER_BUILD
     
     -- MOD VERSION
     else
@@ -187,6 +188,7 @@ function InitOarcConfig()
         global.ocfg.frontier_fixed_pos = false
         global.ocfg.frontier_pos_table = {{x = 0, y = 100}}
         global.ocfg.frontier_silo_vision = settings.global["oarc-frontier-silo-vision"].value
+        global.ocfg.frontier_allow_build = true
     end