Tax system

- New tax system
- Advisor window modeled after SC3k's
- Advisor start_dialogue() function is now connected to a SimEvent "advisor_message" signal
- Advisor windows are now autoloaded and no longer part of the core interface node
- Added 3D buildings from Micropolis repo

scripts/autoload/sim_data.gd

@@ -1,21 +1,29 @@
 extends Node
 
-# Hard-coded for now
-var city_name: String = "Furtropolis"
+var city_name: String = "Furtropolis" # Hard-coded, for now
 var year: int = 1980
 var prev_quarter: int
 var quarter: int = 1
 var population: int = 0
 var news_ticker: String
 var budget: int = 20000
-var prev_budget: int
+var expenses: int
 
-var power_grid: int
+const currency: String = "§"
+
+var power_grid: int # Number of power stations in the area. Helps provide redundancies.
+var power_capacity: int
+var current_power_cap: int
+var prev_power_cap: int
 var has_power: bool
 
-var res_tax: int
-var comm_tax: int
-var indust_tax: int
+var res_tax: int = 1
+var comm_tax: int = 1
+var indust_tax: int = 1
+
+var res_income: int
+var comm_income: int
+var ind_income: int
 
 var fire_tax: int
 var police_tax: int

scripts/autoload/sim_events.gd

@@ -3,3 +3,5 @@ extends Node
 signal has_power
 signal budget
 signal game_speed
+signal city_planner(message)
+signal financial_advisor(message)