mirror of
https://github.com/norohind/HabZone.git
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140 lines
4.2 KiB
Python
140 lines
4.2 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Display the "habitable-zone" (i.e. the range of distances in which you might find an Earth-Like World)
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#
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import sys
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import Tkinter as tk
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import myNotebook as nb
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if __debug__:
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from traceback import print_exc
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from config import config
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from l10n import Locale
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VERSION = '1.00'
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WORLDS = [
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# Type Black-body temp range
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('Metal-Rich', 0, 1103.0),
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('Earth-Like', 278.0, 227.0),
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('Water', 307.0, 156.0),
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('Ammonia', 193.0, 117.0),
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]
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LS = 300000000.0 # 1 ls in m (approx)
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this = sys.modules[__name__] # For holding module globals
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def plugin_start():
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return 'HabZone'
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def plugin_app(parent):
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frame = tk.Frame(parent)
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frame.columnconfigure(3, weight=1)
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this.worlds = []
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for (name, high, low) in WORLDS:
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this.worlds.append((tk.Label(frame, text = name + ':'),
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tk.Label(frame),
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tk.Label(frame),
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tk.Label(frame),
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tk.Label(frame),
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))
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update_visibility()
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return frame
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def plugin_prefs(parent):
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frame = nb.Frame(parent)
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nb.Label(frame, text = 'Display:').grid(row = 0, padx = 10, pady = (10,0), sticky=tk.W)
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setting = config.getint('habzone') or 2
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this.settings = []
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row = 1
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for (name, high, low) in WORLDS:
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var = tk.IntVar(value = (setting & row) and 1)
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nb.Checkbutton(frame, text = name, variable = var).grid(row = row, padx = 10, pady = 2, sticky=tk.W)
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this.settings.append(var)
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row *= 2
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nb.Label(frame, text = 'Version %s' % VERSION).grid(padx = 10, pady = 10, sticky=tk.W)
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return frame
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def prefs_changed():
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row = 1
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setting = 0
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for var in this.settings:
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setting += var.get() * row
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row *= 2
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config.set('habzone', setting)
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this.settings = None
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update_visibility()
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def journal_entry(cmdr, system, station, entry, state):
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if entry['event'] == 'Scan':
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try:
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if not float(entry['DistanceFromArrivalLS']): # Only calculate for arrival star
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r = float(entry['Radius'])
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t = float(entry['SurfaceTemperature'])
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for i in range(len(WORLDS)):
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(name, high, low) = WORLDS[i]
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(label, near, dash, far, ls) = this.worlds[i]
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far_dist = int(0.5 + dfort(r, t, low))
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radius = int(0.5 + r / LS)
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if far_dist <= radius:
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near['text'] = ''
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dash['text'] = u'×'
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far['text'] = ''
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ls['text'] = ''
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else:
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if not high:
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near['text'] = Locale.stringFromNumber(radius)
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else:
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near['text'] = Locale.stringFromNumber(int(0.5 + dfort(r, t, high)))
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dash['text'] = '-'
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far['text'] = Locale.stringFromNumber(far_dist)
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ls['text'] = 'ls'
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except:
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for (label, near, dash, far, ls) in this.worlds:
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near['text'] = ''
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dash['text'] = ''
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far['text'] = ''
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ls['text'] = '?'
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elif entry['event'] == 'FSDJump':
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for (label, near, dash, far, ls) in this.worlds:
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near['text'] = ''
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dash['text'] = ''
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far['text'] = ''
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ls['text'] = ''
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# Distance for target black-body temperature
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def dfort(r, t, target):
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return (((r ** 2) * (t ** 4) / (4 * (target ** 4))) ** 0.5) / LS
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def update_visibility():
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setting = config.getint('habzone') or 2
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row = 1
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for (label, near, dash, far, ls) in this.worlds:
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if setting & row:
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label.grid(row = row, column = 0, sticky=tk.W)
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near.grid(row = row, column = 1, sticky=tk.E)
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dash.grid(row = row, column = 2, sticky=tk.E)
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far.grid(row = row, column = 3, sticky=tk.E)
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ls.grid(row = row, column = 4, sticky=tk.W)
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else:
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label.grid_remove()
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near.grid_remove()
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dash.grid_remove()
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far.grid_remove()
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ls.grid_remove()
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row *= 2
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