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annotate src/parpg/behaviours/moving.py @ 82:7cb53edfb95f

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Renamed BaseBehaviour to MovingAgentBehaviour
author KarstenBock@gmx.net
date Fri, 09 Sep 2011 15:05:23 +0200
parents
children 9f8faf6e974d
rev   line source
82
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1 # This file is part of PARPG.
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2
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3 # PARPG is free software: you can redistribute it and/or modify
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4 # it under the terms of the GNU General Public License as published by
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5 # the Free Software Foundation, either version 3 of the License, or
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6 # (at your option) any later version.
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7
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8 # PARPG is distributed in the hope that it will be useful,
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9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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11 # GNU General Public License for more details.
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12
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13 # You should have received a copy of the GNU General Public License
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14 # along with PARPG. If not, see <http://www.gnu.org/licenses/>.
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15
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16 from fife import fife
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17
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18 _AGENT_STATE_NONE, _AGENT_STATE_IDLE, _AGENT_STATE_APPROACH, _AGENT_STATE_RUN, _AGENT_STATE_WANDER, _AGENT_STATE_TALK = xrange(6)
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19
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20 class MovingAgentBehaviour (fife.InstanceActionListener):
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21 """Fife agent listener"""
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22 def __init__(self):
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23 fife.InstanceActionListener.__init__(self)
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24 self.agent = None
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25 self.state = None
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26 self.speed = 0
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27 self.idle_counter = 1
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28
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29 def attachToLayer(self, agent_ID, layer):
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30 """Attaches to a certain layer
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31 @type agent_ID: String
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32 @param agent_ID: ID of the layer to attach to.
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33 @type layer: Fife layer
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34 @param layer: Layer of the agent to attach the behaviour to
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35 @return: None"""
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36 self.agent = layer.getInstance(agent_ID)
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37 self.agent.addActionListener(self)
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38 self.state = _AGENT_STATE_NONE
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39
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40 def getX(self):
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41 """Get the NPC's x position on the map.
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42 @rtype: integer"
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43 @return: the x coordinate of the NPC's location"""
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44 return self.agent.getLocation().getLayerCoordinates().x
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45
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46 def getY(self):
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47 """Get the NPC's y position on the map.
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48 @rtype: integer
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49 @return: the y coordinate of the NPC's location"""
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50 return self.agent.getLocation().getLayerCoordinates().y
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51
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52 def onNewMap(self, layer):
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53 """Sets the agent onto the new layer."""
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54 if self.agent is not None:
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55 self.agent.removeActionListener(self)
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56
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57 self.agent = layer.getInstance(self.parent.fifeagent.identifier)
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58 self.agent.addActionListener(self)
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59 self.state = _AGENT_STATE_NONE
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60 self.idle_counter = 1
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61
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62 def idle(self):
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63 """@return: None"""
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64 self.state = _AGENT_STATE_IDLE
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65 self.agent.act('stand', self.agent.getFacingLocation())
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66
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67 def approach(self, location, action=None):
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68 """Approaches a location and then perform an action (if set).
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69 @type loc: fife.Location
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70 @param loc: the location to approach
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71 @type action: Action
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72 @param action: The action to schedule for execution after the approach.
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73 @return: None"""
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74 self.state = _AGENT_STATE_APPROACH
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75 self.nextAction = action
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76 boxLocation = tuple([int(float(i)) for i in location])
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77 l = fife.Location(self.agent.getLocation())
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78 l.setLayerCoordinates(fife.ModelCoordinate(*boxLocation))
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79 self.agent.move('run', l, self.speed + 1)
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80
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81 def onInstanceActionFinished(self, instance, action):
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82 """@type instance: ???
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83 @param instance: ???
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84 @type action: ???
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85 @param action: ???
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86 @return: None"""
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87 # First we reset the next behavior
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88 act = self.nextAction
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89 self.nextAction = None
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90 self.idle()
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91
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92 if act:
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93 act.execute()
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94
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95 if(action.getId() != 'stand'):
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96 self.idle_counter = 1
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97 else:
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98 self.idle_counter += 1
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99
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100 def getLocation(self):
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101 """Get the agents position as a fife.Location object.
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102 @rtype: fife.Location
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103 @return: the location of the agent"""
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104 return self.agent.getLocation()
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105
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106
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107 def talk(self, pc):
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108 """Makes the agent ready to talk to the PC
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109 @return: None"""
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110 self.state = _AGENT_STATE_TALK
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111 self.pc = pc.behaviour.agent
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112 self.idle()
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113
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114 def run(self, location):
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115 """Makes the PC run to a certain location
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116 @type location: fife.ScreenPoint
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117 @param location: Screen position to run to.
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118 @return: None"""
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119 self.state = _AGENT_STATE_RUN
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120 self.nextAction = None
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121 self.agent.move('run', location, self.speed + 1)
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122
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123 def walk(self, location):
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124 """Makes the PC walk to a certain location.
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125 @type location: fife.ScreenPoint
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126 @param location: Screen position to walk to.
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127 @return: None"""
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128 self.state = _AGENT_STATE_RUN
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129 self.nextAction = None
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130 self.agent.move('walk', location, self.speed - 1)
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131