Added logic for toggling minable robots (#790)

* Added logic for toggling minable robots

* Added aditional checks to prevent indexing nil

* Moved to Redmew-QoL

* Indent

* Moved to redmew-qol

config.lua

@@ -305,7 +305,9 @@ global.config = {
         -- adds craftable loaders.
         loaders = true,
         -- turns on entity info aka alt-mode on first joining
-        set_alt_on_create = true
+        set_alt_on_create = true,
+        -- prevents personal construction robots from being mined by other players
+        save_bots = true
     },
     -- adds a useless button with the biter percentage
     evolution_progress = {

features/redmew_qol.lua

@@ -139,6 +139,45 @@ local loader_check_token =
     end
 )
 
+--- Sets construction robots that are not part of a roboport to unminabe
+-- if the player selecting them are not the owner of them.
+local function preserve_bot(event)
+    local player = Game.get_player_by_index(event.player_index)
+    local entity = player.selected
+
+    if entity == nil or not entity.valid then
+        return
+    end
+
+    if entity.name ~= 'construction-robot' then
+        return
+    end
+    local logistic_network = entity.logistic_network
+
+    if logistic_network == nil or not logistic_network.valid then
+        --prevents an orphan bot from being unremovable
+        entity.minable = false
+        return
+    end
+
+    -- All valid logistic networks should have at least one cell
+    local cell = logistic_network.cells[1]
+    local owner = cell.owner
+
+    --checks if construction-robot is part of a mobile logistic network
+    if owner.name ~= 'player' then
+        return
+    end
+
+    --checks if construction-robot is owned by the player that has selected it
+    if owner.player.name == player.name then
+        entity.minable = true
+        return
+    end
+
+    entity.minable = false
+end
+
 -- Event registers
 
 local function register_random_train_color()
@@ -295,4 +334,8 @@ if config.loaders then
     Event.add(defines.events.on_research_finished, enable_loaders)
 end
 
+if config.save_bots then
+    Event.add(defines.events.on_selected_entity_changed, preserve_bot)
+end
+
 return Public