Move stars code into own module for now.

README.md

@@ -37,3 +37,26 @@ keep historical data in it rather than just the current state, eh?  No
 one will freak out?
 
 
+That was easy.
+
+I don't want to spend too much time fiddling with the widgets and UI,
+it's fun but it's a bit of a rabbit hole, eh?
+
+
+The basic model is that you get a state db from the server, explore it
+with the client and queue up an order list to send back to the server for
+processing, which then returns the new state db.
+
+What format for the order codes?
+
+Thun code?
+
+THe db tables and game data types should be compatible with Prolog?
+
+I don't want to have a bunch of Python objects modelling the game
+entities if possible, what I mean is, it would be neat if the db rows
+(tuples of Python ints & strings) and the Tk widgets (canvas items, etc.)
+could be the bulk of the internal game, uh, stuff.  Not everything needs
+to be a class?
+
+

data.py

@@ -20,24 +20,18 @@
 from random import randint, expovariate, seed
 import sqlite3
 from poisson import poisson
+import stars
 
 
 FILENAME = './game.sqlite'
-MINIMUM_DISTANCE_BETWEEN_STARS = 160
-WIDTH, HEIGHT = 10240, 7680
-
-
-CREATE_TABLES = '''\
-create table stars (x INTEGER, y INTEGER, radius INTEGER)
-'''.splitlines(False)
 
 conn = None
 
 
-def initialize_db(filename):
+def initialize_db_tables(filename):
     conn = open_db(filename)
     c = conn.cursor()
-    for statement in CREATE_TABLES:
+    for statement in stars.TABLES:
         c.execute(statement)
     c.close()
     conn.commit()
@@ -67,27 +61,16 @@ def generate_stars(width, height, minimum_distance_between_stars):
 
 def main(filename):
     print('Initializing db file', filename)
-    conn = initialize_db(filename)
+    conn = initialize_db_tables(filename)
-
+    stars.init_db(conn)
-    print('Generating data.')
-    seed(23)
-    c = conn.cursor()
-    for values in generate_stars(
-        WIDTH,
-        HEIGHT,
-        MINIMUM_DISTANCE_BETWEEN_STARS,
-        ):
-        c.execute('insert into stars values (?, ?, ?)', values)
-    c.close()
-    conn.commit()
 
 
-def stars():
+##def stars():
-    global conn
+##    global conn
-    c = conn.cursor()
+##    c = conn.cursor()
-    c.execute('select x, y, radius from stars')
+##    c.execute('select x, y, radius from stars')
-    yield from c.fetchall()
+##    yield from c.fetchall()
-    c.close()
+##    c.close()
 
 
 if __name__ == '__main__':

stars.py

@@ -0,0 +1,53 @@
+# -*- coding: utf-8 -*-
+#
+#    Copyright © 2024 Simon Forman
+#
+#    This file is part of game
+#
+#    game is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation, either version 3 of the License, or
+#    (at your option) any later version.
+#
+#    game is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with game.  If not see <http://www.gnu.org/licenses/>.
+#
+from random import randint, expovariate, seed
+import sqlite3
+from poisson import poisson
+
+
+MINIMUM_DISTANCE_BETWEEN_STARS = 160
+WIDTH, HEIGHT = 10240, 7680
+
+
+TABLES = [
+    'create table stars (x INTEGER, y INTEGER, radius INTEGER)',
+    ]
+
+
+def generate_stars(width, height, minimum_distance_between_stars):
+    for x, y in poisson(width, height, minimum_distance_between_stars):
+        yield x, y, round(1 + expovariate(1))
+
+
+def init_db(conn):
+    print('Generating star data.')
+    seed(23)
+    c = conn.cursor()
+    for values in generate_stars(WIDTH, HEIGHT, MINIMUM_DISTANCE_BETWEEN_STARS):
+        c.execute('insert into stars values (?, ?, ?)', values)
+    c.close()
+    conn.commit()
+
+
+def iter_stars(conn):
+    c = conn.cursor()
+    c.execute('select x, y, radius from stars')
+    yield from c.fetchall()
+    c.close()

ui.py

@@ -20,7 +20,7 @@
 #
 from tkinter import *
 
-import data
+import data, stars
 
 
 class App:
@@ -62,10 +62,10 @@ class App:
 data.open_db()
 
 root = Tk()
-app = App(root, bg='black', scrollregion=(0, 0, data.WIDTH, data.HEIGHT))
+app = App(root, bg='black', scrollregion=(0, 0, stars.WIDTH, stars.HEIGHT))
 app.frame.pack(expand=True, fill=BOTH)
 
-for x, y, radius in data.stars():
+for x, y, radius in stars.iter_stars(data.conn):
     app.canvas.create_oval(
         x - radius, y - radius,
         x + radius, y + radius,