Mercurial > fife-parpg

annotate demos/shooter/scripts/common/baseobject.py @ 477:6b33d80b468b

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Projectiles are now part of the scene. Cleaned up the scene update() function. Moved garbage collection to the beginning of the frame. Introduced global object types. Projectiles now only check for collisions in a limited number of scene nodes rather than the entire screen.
author prock@33b003aa-7bff-0310-803a-e67f0ece8222
date Thu, 22 Apr 2010 19:52:34 +0000
parents 78a1eb57c074
children ab28994820dd
rev   line source
448
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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.common.helpers import normalize
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26 from scripts.common.helpers import Rect
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27
477
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28
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29 SHTR_DEFAULT = 0
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30 SHTR_PLAYER = 1
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31 SHTR_LASTBOSS = 2
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32 SHTR_PROJECTILE = 3
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33 SHTR_ENEMYSHIP = 4
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34
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35
448
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36 class SpaceObject(object):
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37 def __init__(self, scene, name, findInstance=True):
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38 self._scene = scene
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39 self._model = self._scene.model
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40 self._layer = self._scene.objectlayer
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41 self._name = name
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42 self._xscale = self._layer.getCellGrid().getXScale()
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43 self._yscale = self._layer.getCellGrid().getYScale()
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44 self._velocity = fife.DoublePoint(0,0)
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45 self._maxvelocity = 1.25
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46 self._boundingBox = Rect(0,0,0,0)
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47 self._running = False
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48 self._changedPosition = False
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49 self._scenenodeid = -1
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50 self._type = SHTR_DEFAULT
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51
448
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52 if findInstance:
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53 self._instance = self._layer.getInstance(self._name)
473
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54 self._instance.thisown = 0
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55 else:
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56 self._instnace = None
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57
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58 def start(self):
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59 if self._instance:
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60 self._running = True
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61
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62 def update(self):
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63 if self._running:
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64 shiploc = self.location
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65 exactloc = shiploc.getExactLayerCoordinates()
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66
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67 exactloc.x += self._velocity.x * (self._scene.timedelta/1000.0)/self._xscale
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68 exactloc.y += self._velocity.y * (self._scene.timedelta/1000.0)/self._yscale
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69
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70 self._boundingBox.x = (exactloc.x * self._xscale - self._boundingBox.w/2)
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71 self._boundingBox.y = (exactloc.y * self._yscale - self._boundingBox.h/2)
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72
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73 shiploc.setExactLayerCoordinates(exactloc)
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74
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75 if shiploc == self.location:
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76 self._changePosition = False
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77 else:
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78 self._changedPosition = True
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79
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80 self.location = shiploc
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81
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82 def stop(self):
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83 self._running = False
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84
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85 def destroy(self):
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86 self._running = False
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87
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88 def applyThrust(self, vector):
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89 self._velocity.x += (vector.x * (self._scene.timedelta/1000.0))/self._xscale
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90 self._velocity.y += (vector.y * (self._scene.timedelta/1000.0))/self._yscale
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91
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92 if self._velocity.length() > self._maxvelocity:
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93 norm = normalize(self._velocity)
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94 self._velocity.x = norm.x * self._maxvelocity
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95 self._velocity.y = norm.y * self._maxvelocity
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96
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97
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98 def applyBrake(self, brakingForce):
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99
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100 if self._velocity.length() <= .01:
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101 self._velocity.x = 0
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102 self._velocity.y = 0
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103 return
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104
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105 #first normalize to get a unit vector of the direction we are traveling
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106 norm = normalize(self._velocity)
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107 if norm.length() == 0:
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108 self._velocity.x = 0
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109 self._velocity.y = 0
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110 return
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111
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112 #negate to get opposite direction
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113 norm.x = norm.x * -1
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114 norm.y = norm.y * -1
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115
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116 #apply braking deceleration
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117 norm.x *= brakingForce
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118 norm.y *= brakingForce
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119
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120 self._velocity.x += (norm.x * (self._scene.timedelta/1000.0))/self._xscale
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diff changeset
121 self._velocity.y += (norm.y * (self._scene.timedelta/1000.0))/self._yscale
463
ac0f62a07a3e Added enemy explosions and other animations.
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parents: 460
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122
ac0f62a07a3e Added enemy explosions and other animations.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 460
diff changeset
123 def removeFromScene(self):
476
78a1eb57c074 Changed the way instances get deleted from the scene. Instances now get removed at the end of the frame as opposed to after their explosion action is complete. The old way was causing the odd segfault because the instance was being removed before FIFE was finished with it.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 473
diff changeset
124 self._scene.queueObjectForRemoval(self)
449
1cf56403347a Added object bounding boxes.
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parents: 448
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125
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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126 def _isRunning(self):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
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127 return self._running
448
5e2ec84902a7 Did a little re-factoring.
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128
5e2ec84902a7 Did a little re-factoring.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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129 def _getMaxVelocity(self):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
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130 return self._maxvelocity
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131
5e2ec84902a7 Did a little re-factoring.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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132 def _setMaxVelocity(self, maxvel):
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133 self._maxvelocity = maxvel/sqrt(self._xscale * self._yscale)
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134
5e2ec84902a7 Did a little re-factoring.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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135 def _getLocation(self):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
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136 return self._instance.getLocation()
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137
5e2ec84902a7 Did a little re-factoring.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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138 def _setLocation(self, loc):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
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139 self._instance.setLocation(loc)
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140
5e2ec84902a7 Did a little re-factoring.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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141 def _getInstance(self):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
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142 return self._instance
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143
5e2ec84902a7 Did a little re-factoring.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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144 def _setInstance(self, instance):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
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145 self._instance = instance
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146
5e2ec84902a7 Did a little re-factoring.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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147 def _getVelocity(self):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
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148 return self._velocity
449
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
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149
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
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150 def _setVelocity(self, velocity):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
151 self._velocity = velocity
448
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152
449
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
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153 def _getBoundingBox(self):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
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154 return self._boundingBox
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
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155
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
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156 def _getW(self):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
157 return self._boundingBox.w
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
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158
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
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159 def _getH(self):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
160 return self._boundingBox.h
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
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161
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
162 def _setW(self, w):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
163 self._boundingBox.w = w
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
164
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
165 def _setH(self, h):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
166 self._boundingBox.h = h
453
cf53848fb187 Scene now gets updated when an object moves from one node to another.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 451
diff changeset
167
cf53848fb187 Scene now gets updated when an object moves from one node to another.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 451
diff changeset
168 def _changedPosition(self):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 451
diff changeset
169 return self._changedPosition
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 451
diff changeset
170
cf53848fb187 Scene now gets updated when an object moves from one node to another.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 451
diff changeset
171 def _getNodeId(self):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 451
diff changeset
172 return self._scenenodeid
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 451
diff changeset
173
cf53848fb187 Scene now gets updated when an object moves from one node to another.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 451
diff changeset
174 def _setNodeId(self, id):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 451
diff changeset
175 self._scenenodeid = id
477
6b33d80b468b Projectiles are now part of the scene.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 476
diff changeset
176
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 476
diff changeset
177 def _getType(self):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 476
diff changeset
178 return self._type
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 476
diff changeset
179
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 476
diff changeset
180 def _setType(self, objtype):
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 476
diff changeset
181 self._type = objtype
449
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
182
477
6b33d80b468b Projectiles are now part of the scene.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 476
diff changeset
183 type = property(_getType, _setType)
449
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
184 width = property(_getW, _setW)
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
185 height = property(_getH, _setH)
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
186 boundingbox = property(_getBoundingBox)
448
5e2ec84902a7 Did a little re-factoring.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
187 location = property(_getLocation,_setLocation)
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prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents:
diff changeset
188 instance = property(_getInstance, _setInstance)
449
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
189 velocity = property(_getVelocity, _setVelocity)
1cf56403347a Added object bounding boxes.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 448
diff changeset
190 maxvelocity = property(_getMaxVelocity, _setMaxVelocity)
453
cf53848fb187 Scene now gets updated when an object moves from one node to another.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 451
diff changeset
191 running = property(_isRunning)
cf53848fb187 Scene now gets updated when an object moves from one node to another.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 451
diff changeset
192 changedposition = property(_changedPosition)
cf53848fb187 Scene now gets updated when an object moves from one node to another.
prock@33b003aa-7bff-0310-803a-e67f0ece8222
parents: 451
diff changeset
193 scenenodeid = property(_getNodeId, _setNodeId)