annotate pytouhou/game/bullet.py @ 85:3804f07d3b0e

Various optimizations
author Thibaut Girka <thib@sitedethib.com>
date Sat, 03 Sep 2011 23:34:12 +0200
parents 1a0c78e5a941
children a87a3c080585
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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 cos, sin, atan2, pi
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16
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17 from pytouhou.vm.anmrunner import ANMRunner
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18 from pytouhou.game.sprite import Sprite
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19
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20
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21 class Bullet(object):
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22 __slots__ = ('x', 'y', 'angle', 'speed',
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23 'flags', 'attributes', 'anim_idx', 'sprite_idx_offset', 'player',
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24 '_game_state', '_sprite', '_anmrunner',
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25 '_removed', '_launched')
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26
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27 def __init__(self, pos, anim_idx, sprite_idx_offset,
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28 angle, speed, attributes, flags, player, game_state):
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29 self._game_state = game_state
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30 self._sprite = None
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31 self._anmrunner = None
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32 self._removed = False
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33 self._launched = False
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34
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35 self.player = player
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36
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37 self.anim_idx = anim_idx
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38 self.sprite_idx_offset = sprite_idx_offset
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39
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40 #TODO
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41 #if flags & (2|4|8):
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42 # index = {2: 11, 4: 12, 8: 13}[flags & (2|4|8)]
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43 # self._sprite = Sprite()
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44 # self._anmrunner = ANMRunner(self._game_state.resources.etama_anm_wrappers[0],
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45 # index, self._sprite, sprite_idx_offset)
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46
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47 self.flags = flags
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48 self.attributes = list(attributes)
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49
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50 self.x, self.y = pos
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51 self.angle = angle
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52 self.speed = speed
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53
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54
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55 def is_visible(self, screen_width, screen_height):
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56 if self._sprite:
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57 tx, ty, tw, th = self._sprite.texcoords
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58 if self._sprite.corner_relative_placement:
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59 raise Exception #TODO
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60 else:
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61 tx, ty, tw, th = 0., 0., 0., 0.
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62
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63 max_x = tw / 2.
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64 max_y = th / 2.
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65 min_x = -max_x
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66 min_y = -max_y
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67
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68 if any((min_x > screen_width - self.x,
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69 max_x < -self.x,
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70 min_y > screen_height - self.y,
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71 max_y < -self.y)):
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72 return False
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73 return True
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74
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75
85
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76 def get_objects_by_texture(self, objects_by_texture):
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77 sprite = self._sprite
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78 key = sprite.anm.first_name, sprite.anm.secondary_name
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79 key = (key, sprite.blendfunc)
84
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80 if not key in objects_by_texture:
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81 objects_by_texture[key] = (0, [], [], [])
85
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82 vertices = ((x + self.x, y + self.y, z) for x, y, z in sprite._vertices)
84
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83 objects_by_texture[key][1].extend(vertices)
85
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84 objects_by_texture[key][2].extend(sprite._uvs)
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85 objects_by_texture[key][3].extend(sprite._colors)
84
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86
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87
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88 def update(self):
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89 if not self._sprite or self._sprite._removed:
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90 self._launched = True
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91 self._sprite = Sprite()
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92 self._anmrunner = ANMRunner(self._game_state.resources.etama_anm_wrappers[0], #TODO
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93 self.anim_idx, self._sprite, self.sprite_idx_offset)
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94 #TODO: self._anmrunner.sprite_idx_offset = self.sprite_idx_offset
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95
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96 if self._anmrunner and not self._anmrunner.run_frame():
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97 self._anmrunner = None
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98
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99 self._sprite.update()
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100 if self._sprite._changed: #TODO
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101 angle = pi/2.-self.angle if self._sprite.automatic_orientation else 0.
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102 self._sprite.update_vertices_uvs_colors(angle_base=angle)
84
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103
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104 #TODO: flags
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105 x, y = self.x, self.y
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106
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107 dx, dy = cos(self.angle) * self.speed, sin(self.angle) * self.speed
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108 self.x, self.y = x + dx, y + dy
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109