Mercurial > fife-parpg

annotate demos/shooter/scripts/weapons.py @ 448:5e2ec84902a7

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Did a little re-factoring. Introduced the scene graph for collision detection. Changed the time scale to be accurate.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 01 Apr 2010 17:03:34 +0000
parents 64676ea55472
children 1cf56403347a
rev   line source
446
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1 # -*- coding: utf-8 -*-
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2
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3 # ####################################################################
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4 # Copyright (C) 2005-2009 by the FIFE team
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5 # http://www.fifengine.de
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6 # This file is part of FIFE.
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7 #
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8 # FIFE is free software; you can redistribute it and/or
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9 # modify it under the terms of the GNU Lesser General Public
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10 # License as published by the Free Software Foundation; either
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11 # version 2.1 of the License, or (at your option) any later version.
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12 #
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13 # This library is distributed in the hope that it will be useful,
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 # Lesser General Public License for more details.
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17 #
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18 # You should have received a copy of the GNU Lesser General Public
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19 # License along with this library; if not, write to the
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20 # Free Software Foundation, Inc.,
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21 # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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22 # ####################################################################
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23
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24 from fife import fife
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25 from scripts.ships.shipbase import SpaceObject
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26
448
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27 class Projectile(SpaceObject):
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28 def __init__(self, model, projectileName, layer, timeToLive):
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29 super(Projectile, self).__init__(model, projectileName, layer, False)
446
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30 self._name = projectileName
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31 self._layer = layer
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32
446
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33 self._obj = self._model.getObject(self._name, "http://www.fifengine.de/xml/tutorial")
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34 self._running = False
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35 self._ttl = timeToLive
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36 self._starttime = 0
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37
446
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38 def create(self, location):
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39 self._instance = self._layer.createInstance(self._obj, location.getExactLayerCoordinates(), "bullet")
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40 fife.InstanceVisual.create(self._instance)
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41
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42 def run(self, velocity, location, time):
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43 if not self._running:
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44 self._velocity = velocity
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45 self._velocity.x /= self._xscale
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46 self._velocity.y /= self._yscale
446
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47
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48 self.create(location)
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49 self._running = True
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50
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51 self._starttime = time
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52
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53 def destroy(self):
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54 if self._running and self._instance:
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55 self._layer.deleteInstance(self._instance)
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56 self._running = False
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57
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58 def _isRunning(self):
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59 return self._running
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60
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61 def _getTTL(self):
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62 return self._ttl
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63
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64 def update(self, curtime):
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65 if self._running and (curtime - self._starttime) < self._ttl:
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66 projloc = self.location
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67 exactloc = projloc.getExactLayerCoordinates()
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68
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69 exactloc.x += self._velocity.x
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70 exactloc.y += self._velocity.y
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71
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72 projloc.setExactLayerCoordinates(exactloc)
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73 self.location = projloc
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74 else:
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75 self.destroy()
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76
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77 running = property(_isRunning)
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78 ttl = property(_getTTL)
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79
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80 class Weapon(object):
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81 def __init__(self, model, layer, ship, firerate):
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82 self._model = model
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83 self._layer = layer
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84 self._ship = ship
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85 self._firerate = firerate
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86 self._lastfired = 0
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87 self._projectileVelocity = fife.DoublePoint(0.075,0)
446
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88
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89 def fire(self, curtime):
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90 if (curtime - self._lastfired) > self._firerate:
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91 pjctl = Projectile(self._model, "bullet1", self._layer, 2000 )
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92 pjctl.run(fife.DoublePoint(self._projectileVelocity.x,self._projectileVelocity.y), self._ship.location, curtime)
446
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93 self._lastfired = curtime
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94 return pjctl
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95
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96 return None
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97