Hornwitser · November 12, 2019 18:55 · Nov 12, 2019
diff --git a/control.lua b/control.lua
@@ -0,0 +1,60 @@
+local mod_gui = require("mod-gui")
+local current_player_index
+local name_element
+local tick_element
+
+script.on_init(function()
+    current_player_index = 0
+end)
+
+script.on_event(defines.events.on_player_joined_game, function(event)
+    local flow = mod_gui.get_frame_flow(game.players[event.player_index])
+
+    if flow["info-frame"] then
+        if current_player_index == nil then
+            print("==== player index " .. event.player_index)
+            current_player_index = event.player_index
+            name_element = flow["info-frame"]["info-name"]
+            tick_element = flow["info-frame"]["info-tick"]
+        end
+
+    else
+        local frame = flow.add{
+            type = "frame",
+            name = "info-frame",
+            direction = "vertical",
+        }
+
+        local name = frame.add{type="label", name="info-name", caption="(none)"}
+        local tick = frame.add{type="label", name="info-tick"}
+
+        if current_player_index == nil then
+            print("==== player index " .. event.player_index)
+            current_player_index = event.player_index
+            name_element = name
+            tick_element = tick
+        end
+    end
+end)
+
+script.on_nth_tick(1, function()
+    if name_element then
+        tick_element.caption = tostring(game.tick)
+    end
+end)
+
+script.on_event(defines.events.on_selected_entity_changed, function(event)
+    if
+        current_player_index ~= event.player_index
+    then
+        return
+    end
+
+    local player = game.players[event.player_index]
+    local entity = player.selected
+    if entity then
+        name_element.caption = player.selected.name
+    else
+        name_element.caption = "(none)"
+    end
+end)