Mercurial > fife-parpg
annotate demos/shooter/scripts/common/helpers.py @ 487:7f1c42b66aa4
Moved the shooter demo Timer() class to helpers.py.
Changed the formula that calculates the length of the audio clip to be correct.
The shooter demo now demonstrates the use of the audio clip callbacks correctly.
Fixed the fife_timer extension to actually work.
author | prock@33b003aa-7bff-0310-803a-e67f0ece8222 |
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date | Mon, 03 May 2010 19:58:16 +0000 |
parents | afde89c1d50b |
children | c4168eb47a44 |
rev | line source |
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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 import math |
446
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26 |
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27 |
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28 def normalize(vector): |
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29 """ |
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30 Helper function to normalize a vector |
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31 """ |
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32 norm = fife.DoublePoint(0,0) |
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33 |
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34 invLength = 1.0/vector.length() |
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35 if invLength > 1e-06: |
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36 norm.x = vector.x * invLength; |
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37 norm.y = vector.y * invLength; |
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38 else: |
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39 norm.x = 0 |
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40 norm.y = 0 |
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41 |
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42 return norm |
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43 |
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44 class Rect(object): |
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45 def __init__(self, x = 0, y = 0, w = 0, h = 0): |
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46 self._x = x |
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47 self._y = y |
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48 self._w = w |
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49 self._h = h |
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50 |
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51 def intersects(self, rect): |
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52 _x = self._x - rect.x; |
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53 _y = self._y - rect.y; |
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54 _w = self._w; |
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55 _h = self._h; |
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56 |
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57 if _x < 0: |
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58 _w += _x |
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59 _x = 0 |
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60 |
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61 if _y < 0: |
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62 _h += _y |
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63 _y = 0 |
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64 |
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65 if _x + _w > rect.w: |
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66 _w = rect.w - _x |
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67 |
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68 if _y + _h > rect.h: |
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69 _h = rect.h - _y |
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70 |
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71 if _w <= 0 or _h <= 0: |
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72 return False |
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73 |
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74 return True |
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75 |
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76 def _setX(self, x): |
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77 self._x = x |
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78 |
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79 def _getX(self): |
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80 return self._x |
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81 |
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82 def _setY(self, y): |
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83 self._y = y |
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84 |
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85 def _getY(self): |
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86 return self._y |
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87 |
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88 def _setW(self, w): |
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89 self._w = w |
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90 |
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91 def _getW(self): |
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92 return self._w |
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93 |
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94 def _setH(self, h): |
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95 self._h = h |
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96 |
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97 def _getH(self): |
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98 return self._h |
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99 |
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100 x = property(_getX, _setX) |
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101 y = property(_getY, _setY) |
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102 w = property(_getW, _setW) |
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103 h = property(_getH, _setH) |
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104 |
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105 def rotatePoint(origin, point, angle): |
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106 newp = fife.DoublePoint(0,0) |
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107 |
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108 theta = (angle * math.pi)/180 |
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109 |
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110 costheta = math.cos(theta) |
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111 sintheta = math.sin(theta) |
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112 |
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113 x = point.x - origin.x |
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114 y = point.y - origin.y |
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115 |
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116 newp.x = costheta * x - sintheta * y |
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117 newp.y = sintheta * x + costheta * y |
472
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118 |
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119 return newp |
487
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120 |
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121 class Timer(fife.TimeEvent): |
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122 def __init__(self,manager, delay=0,callback=None,repeat=0): |
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123 super(Timer,self).__init__(delay) |
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124 self._is_registered = False |
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125 self._callback = callback |
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126 self._manager = manager |
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127 self.setPeriod(delay) |
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128 self._repeat = repeat |
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129 self._executed = 0 |
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130 |
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131 def start(self): |
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132 if self._is_registered: |
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133 return |
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134 self._is_registered = True |
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135 self._executed = 0 |
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136 self._manager.registerEvent(self) |
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137 |
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138 def stop(self): |
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139 if not self._is_registered: |
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140 return |
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141 self._is_registered = False |
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142 self._manager.unregisterEvent(self) |
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143 |
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144 def updateEvent(self,delta): |
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145 if callable(self._callback): |
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146 self._callback() |
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147 |
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148 if self._repeat != 0: |
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149 self._executed += 1 |
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150 if self._executed >= self._repeat: |
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151 self.stop() |
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152 |
472
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153 |