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annotate pytouhou/game/sprite.py @ 98:d141c851c598

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Rename pytouhou.game.enemymanager to pytouhou.game.enemy
author Thibaut Girka <thib@sitedethib.com>
date Sun, 04 Sep 2011 23:51:14 +0200
parents ac2e5e1c2c3c
children 2a03940deea3
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1 # -*- encoding: utf-8 -*-
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2 ##
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3 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com>
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4 ##
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5 ## This program is free software; you can redistribute it and/or modify
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6 ## it under the terms of the GNU General Public License as published
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7 ## by the Free Software Foundation; version 3 only.
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8 ##
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9 ## This program is distributed in the hope that it will be useful,
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10 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 ## GNU General Public License for more details.
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13 ##
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14
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15 from math import pi
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16
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17 from pytouhou.utils.matrix import Matrix
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18 from pytouhou.utils.interpolator import Interpolator
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20
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21 class Sprite(object):
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22 def __init__(self):
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23 self.anm = None
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24 self._removed = False
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25 self._changed = False
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27 self.width_override = 0
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28 self.height_override = 0
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29 self.angle = 0
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30 self.force_rotation = False
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31
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32 self.scale_interpolator = None
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33 self.fade_interpolator = None
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34 self.offset_interpolator = None
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36 self.automatic_orientation = False
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37
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38 self.blendfunc = 0 # 0 = Normal, 1 = saturate #TODO: proper constants
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39
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40 self.texcoords = (0, 0, 0, 0) # x, y, width, height
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41 self.dest_offset = (0., 0., 0.)
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42 self.allow_dest_offset = False
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43 self.texoffsets = (0., 0.)
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44 self.mirrored = False
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45 self.rescale = (1., 1.)
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46 self.scale_speed = (0., 0.)
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47 self.rotations_3d = (0., 0., 0.)
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48 self.rotations_speed_3d = (0., 0., 0.)
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49 self.corner_relative_placement = False
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50 self.frame = 0
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51 self.color = (255, 255, 255)
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52 self.alpha = 255
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53 self._uvs = []
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54 self._vertices = []
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55 self._colors = []
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58 def fade(self, duration, alpha, formula):
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59 if not self.fade_interpolator:
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60 self.fade_interpolator = Interpolator((self.alpha,), formula)
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61 self.fade_interpolator.set_interpolation_start(self.frame, (self.alpha,))
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62 self.fade_interpolator.set_interpolation_end(self.frame + duration - 1, (alpha,))
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64
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65 def scale_in(self, duration, sx, sy, formula):
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66 if not self.scale_interpolator:
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67 self.scale_interpolator = Interpolator(self.rescale, formula)
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68 self.scale_interpolator.set_interpolation_start(self.frame, self.rescale)
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69 self.scale_interpolator.set_interpolation_end(self.frame + duration - 1, (sx, sy))
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72 def move_in(self, duration, x, y, z, formula):
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73 if not self.offset_interpolator:
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74 self.offset_interpolator = Interpolator(self.dest_offset, formula)
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75 self.offset_interpolator.set_interpolation_start(self.frame, self.dest_offset)
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76 self.offset_interpolator.set_interpolation_end(self.frame + duration - 1, (x, y, z))
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79 def update_vertices_uvs_colors(self):
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80 if not self._changed:
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81 return
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83 if self.fade_interpolator:
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84 self.fade_interpolator.update(self.frame)
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85 self.alpha = int(self.fade_interpolator.values[0])
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86
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87 if self.scale_interpolator:
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88 self.scale_interpolator.update(self.frame)
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89 self.rescale = self.scale_interpolator.values
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91 if self.offset_interpolator:
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92 self.offset_interpolator.update(self.frame)
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93 self.dest_offset = self.offset_interpolator.values
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94
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95 vertmat = Matrix([[-.5, .5, .5, -.5],
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96 [-.5, -.5, .5, .5],
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97 [ .0, .0, .0, .0],
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98 [ 1., 1., 1., 1.]])
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99
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100 tx, ty, tw, th = self.texcoords
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101 sx, sy = self.rescale
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102 width = self.width_override or (tw * sx)
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103 height = self.height_override or (th * sy)
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104
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105 vertmat.scale2d(width, height)
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106 if self.mirrored:
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107 vertmat.flip()
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108
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109 rx, ry, rz = self.rotations_3d
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110 if self.automatic_orientation:
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111 rz += pi/2. - self.angle
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112 elif self.force_rotation:
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113 rz += self.angle
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114
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115 if (rx, ry, rz) != (0., 0., 0.):
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116 if rx:
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117 vertmat.rotate_x(-rx)
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118 if ry:
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119 vertmat.rotate_y(ry)
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120 if rz:
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121 vertmat.rotate_z(-rz) #TODO: minus, really?
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122 if self.corner_relative_placement: # Reposition
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123 vertmat.translate(width / 2., height / 2., 0.)
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124 if self.allow_dest_offset:
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125 vertmat.translate(*self.dest_offset)
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126
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127 x_1 = 1. / self.anm.size[0]
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128 y_1 = 1. / self.anm.size[1]
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129 tox, toy = self.texoffsets
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130 uvs = [(tx * x_1 + tox, 1. - (ty * y_1) + toy),
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131 ((tx + tw) * x_1 + tox, 1. - (ty * y_1) + toy),
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132 ((tx + tw) * x_1 + tox, 1. - ((ty + th) * y_1 + toy)),
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133 (tx * x_1 + tox, 1. - ((ty + th) * y_1 + toy))]
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134
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135 d = vertmat.data
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136 assert (d[3][0], d[3][1], d[3][2], d[3][3]) == (1., 1., 1., 1.)
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137 self._colors = [(self.color[0], self.color[1], self.color[2], self.alpha)] * 4
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138 self._uvs, self._vertices = uvs, zip(d[0], d[1], d[2])
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139 self._changed = False
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140
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141
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142 def update(self, override_width=0, override_height=0, angle_base=0., force_rotation=False):
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143 if (override_width != self.width_override
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144 or override_height != self.height_override
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145 or self.angle != angle_base
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146 or self.force_rotation != force_rotation
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147 or self.scale_interpolator
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148 or self.fade_interpolator
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149 or self.offset_interpolator):
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150
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151 self._changed = True
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152 self.width_override = override_width
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153 self.height_override = override_height
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154 self.angle = angle_base
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155 self.force_rotation = force_rotation
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156
94
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157 if self.rotations_speed_3d != (0., 0., 0.):
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158 ax, ay, az = self.rotations_3d
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159 sax, say, saz = self.rotations_speed_3d
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160 self.rotations_3d = ax + sax, ay + say, az + saz
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diff changeset
161 self._changed = True
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diff changeset
162
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163 if self.scale_speed != (0., 0.):
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parents: 92
diff changeset
164 rx, ry = self.rescale
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165 rsx, rsy = self.scale_speed
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166 self.rescale = rx + rsx, ry + rsy
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diff changeset
167 self._changed = True
ca571697ec83 Various minor optimisations and refactoring
Thibaut Girka <thib@sitedethib.com>
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diff changeset
168
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a03d7a94b997 Add support for a few ANM instructions
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diff changeset
169 self.frame += 1
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b383b09bc735 Fix anim cycling
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parents: 52
diff changeset
170