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annotate pytouhou/game/sprite.py @ 519:b18f0bd30ad0

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Optimise background rendering.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Sat, 07 Dec 2013 22:16:38 +0100
parents 723a3e67a223
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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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 class Sprite(object):
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16 def __init__(self, width_override=0, height_override=0):
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17 self.anm = None
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18 self.removed = False
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19 self.changed = True
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20 self.visible = True
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22 self.width_override = width_override
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23 self.height_override = height_override
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24 self.angle = 0
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25 self.force_rotation = False
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26
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27 self.scale_interpolator = None
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28 self.fade_interpolator = None
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29 self.offset_interpolator = None
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30 self.rotation_interpolator = None
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31 self.color_interpolator = None
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33 self.automatic_orientation = False
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34
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35 self.blendfunc = 0 # 0 = Normal, 1 = saturate #TODO: proper constants
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36
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37 self.texcoords = (0, 0, 0, 0) # x, y, width, height
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38 self.dest_offset = (0., 0., 0.)
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39 self.allow_dest_offset = False
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40 self.texoffsets = (0., 0.)
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41 self.mirrored = False
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42 self.rescale = (1., 1.)
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43 self.scale_speed = (0., 0.)
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44 self.rotations_3d = (0., 0., 0.)
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45 self.rotations_speed_3d = (0., 0., 0.)
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46 self.corner_relative_placement = False
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47 self.frame = 0
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48 self.color = (255, 255, 255)
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49 self.alpha = 255
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51 self._rendering_data = None
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53
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54 def fade(self, duration, alpha, formula=None):
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55 self.fade_interpolator = Interpolator((self.alpha,), self.frame,
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56 (alpha,), self.frame + duration,
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57 formula)
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60 def scale_in(self, duration, sx, sy, formula=None):
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61 self.scale_interpolator = Interpolator(self.rescale, self.frame,
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62 (sx, sy), self.frame + duration,
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63 formula)
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66 def move_in(self, duration, x, y, z, formula=None):
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67 self.offset_interpolator = Interpolator(self.dest_offset, self.frame,
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68 (x, y, z), self.frame + duration,
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69 formula)
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72 def rotate_in(self, duration, rx, ry, rz, formula=None):
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73 self.rotation_interpolator = Interpolator(self.rotations_3d, self.frame,
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74 (rx, ry, rz), self.frame + duration,
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75 formula)
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78 def change_color_in(self, duration, r, g, b, formula=None):
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79 self.color_interpolator = Interpolator(self.color, self.frame,
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80 (r, g, b), self.frame + duration,
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81 formula)
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84 def update_orientation(self, angle_base=0., force_rotation=False):
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85 if (self.angle != angle_base or self.force_rotation != force_rotation):
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86 self.angle = angle_base
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87 self.force_rotation = force_rotation
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88 self.changed = True
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91 def copy(self):
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92 sprite = Sprite(self.width_override, self.height_override)
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93
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94 sprite.blendfunc = self.blendfunc
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95 sprite.frame = self.frame
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96 sprite.angle = self.angle
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97
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98 sprite.removed = self.removed
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99 sprite.changed = self.changed
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100 sprite.visible = self.visible
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101 sprite.force_rotation = self.force_rotation
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102 sprite.automatic_orientation = self.automatic_orientation
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103 sprite.allow_dest_offset = self.allow_dest_offset
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104 sprite.mirrored = self.mirrored
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105 sprite.corner_relative_placement = self.corner_relative_placement
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106
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107 sprite.scale_interpolator = self.scale_interpolator
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108 sprite.fade_interpolator = self.fade_interpolator
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109 sprite.offset_interpolator = self.offset_interpolator
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110 sprite.rotation_interpolator = self.rotation_interpolator
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111 sprite.color_interpolator = self.color_interpolator
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112
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113 sprite.texcoords = self.texcoords
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114 sprite.dest_offset = self.dest_offset
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115 sprite.texoffsets = self.texoffsets
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116 sprite.rescale = self.rescale
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117 sprite.scale_speed = self.scale_speed
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118 sprite.rotations_3d = self.rotations_3d
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119 sprite.rotations_speed_3d = self.rotations_speed_3d
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120 sprite.color = self.color
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121
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122 sprite.alpha = self.alpha
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123 sprite.anm = self.anm
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124 sprite._rendering_data = self._rendering_data
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125
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126 return sprite
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127
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128
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129 def update(self):
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130 self.frame += 1
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131
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132 if self.rotations_speed_3d != (0., 0., 0.):
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133 ax, ay, az = self.rotations_3d
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134 sax, say, saz = self.rotations_speed_3d
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135 self.rotations_3d = ax + sax, ay + say, az + saz
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136 self.changed = True
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137 elif self.rotation_interpolator:
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138 self.rotation_interpolator.update(self.frame)
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139 self.rotations_3d = self.rotation_interpolator.values
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140 self.changed = True
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141
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142 if self.scale_speed != (0., 0.):
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143 rx, ry = self.rescale
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144 rsx, rsy = self.scale_speed
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145 self.rescale = rx + rsx, ry + rsy
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146 self.changed = True
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147
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148 if self.fade_interpolator:
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149 self.fade_interpolator.update(self.frame)
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150 self.alpha = self.fade_interpolator.values[0]
432
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151 self.changed = True
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152
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153 if self.scale_interpolator:
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154 self.scale_interpolator.update(self.frame)
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155 self.rescale = self.scale_interpolator.values
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156 self.changed = True
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157
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158 if self.offset_interpolator:
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159 self.offset_interpolator.update(self.frame)
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160 self.dest_offset = self.offset_interpolator.values
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161 self.changed = True
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162
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163 if self.color_interpolator:
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164 self.color_interpolator.update(self.frame)
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165 self.color = self.color_interpolator.values
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166 self.changed = True