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annotate pytouhou/game/enemymanager.py @ 56:299de3a9b69f

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Filter out off-screen enemies (the same way the official game does)
author Thibaut Girka <thib@sitedethib.com>
date Tue, 23 Aug 2011 00:15:22 +0200
parents ab826bc29aa2
children 694f25881d0f
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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
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16 from itertools import chain
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17 from io import BytesIO
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18 import os
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19 from struct import unpack, pack
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20 from pytouhou.utils.interpolator import Interpolator
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21 from pytouhou.game.eclrunner import ECLRunner
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22 from pytouhou.game.sprite import Sprite
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23 from math import cos, sin, atan2
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24
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25
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26 class Enemy(object):
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27 def __init__(self, pos, life, _type, anm_wrapper):
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28 self._anm_wrapper = anm_wrapper
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29 self._anm = None
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30 self._sprite = None
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31 self._removed = False
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32 self._type = _type
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33 self._was_visible = False
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34
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35 self.frame = 0
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36
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37 self.x, self.y = pos
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38 self.life = life
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39 self.max_life = life
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40 self.pending_bullets = []
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41 self.bullet_attributes = None
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42 self.bullet_launch_offset = (0, 0)
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43 self.vulnerable = True
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44 self.death_callback = None
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45 self.low_life_callback = None
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46 self.low_life_trigger = None
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47 self.timeout = None
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48 self.remaining_lives = -1
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49
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50 self.bullet_launch_interval = 0
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51 self.delay_attack = False
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52
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53 self.death_anim = None
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54 self.movement_dependant_sprites = None
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55 self.direction = None
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56 self.interpolator = None #TODO
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57 self.angle = 0.
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58 self.speed = 0.
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59 self.rotation_speed = 0.
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60 self.acceleration = 0.
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61
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62 self.hitbox = (0, 0)
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63 self.screen_box = None
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64
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65
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66 def set_bullet_attributes(self, bullet_anim, launch_anim, bullets_per_shot,
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67 number_of_shots, speed, unknown, launch_angle,
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68 angle, flags):
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69 self.bullet_attributes = (1, bullet_anim, launch_anim, bullets_per_shot,
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70 number_of_shots, speed, unknown, launch_angle,
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71 angle, flags)
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72 if not self.delay_attack:
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73 pass
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74 #TODO: actually fire
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76
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77 def select_player(self, players):
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78 return players[0] #TODO
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79
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80
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81 def get_player_angle(self, player):
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82 return atan2(player.y - self.y, player.x - self.x)
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83
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84
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85 def set_anim(self, index):
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86 self._anm, self._sprite = self._anm_wrapper.get_sprite(index)
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87
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88
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89 def set_pos(self, x, y, z):
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90 self.x, self.y = x, y
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91 self.interpolator = Interpolator((x, y))
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92 self.interpolator.set_interpolation_start(self.frame, (x, y))
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93
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94
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95 def move_to(self, duration, x, y, z):
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96 self.interpolator.set_interpolation_end(self.frame + duration, (x, y))
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97
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98
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99 def is_visible(self, screen_width, screen_height):
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100 if not self._sprite:
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101 return False
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102
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103 tx, ty, tw, th = self._sprite.texcoords
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104 if self._sprite.corner_relative_placement:
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105 raise Exception #TODO
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106 else:
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107 max_x = tw / 2.
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108 max_y = th / 2.
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109 min_x = -max_x
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110 min_y = -max_y
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111
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112 if any((min_x > screen_width - self.x,
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113 max_x < -self.x,
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114 min_y > screen_height - self.y,
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115 max_y < -self.y)):
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116 return False
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117 return True
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118
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119
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120 def get_objects_by_texture(self):
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121 objects_by_texture = {}
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122 key = self._anm.first_name, self._anm.secondary_name
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123 if not key in objects_by_texture:
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124 objects_by_texture[key] = (0, [], [], [])
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125 vertices = tuple((x + self.x, y + self.y, z) for x, y, z in self._sprite._vertices)
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126 objects_by_texture[key][1].extend(vertices)
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127 objects_by_texture[key][2].extend(self._sprite._uvs)
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128 objects_by_texture[key][3].extend(self._sprite._colors)
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129 #TODO: effects/bullet launch
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130 return objects_by_texture
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131
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132
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133 def update(self, frame):
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134 x, y = self.x, self.y
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135 if self.interpolator and self.interpolator.update(self.frame):
20
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136 x, y = self.interpolator.values
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137
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138 self.speed += self.acceleration #TODO: units? Execution order?
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139 self.angle += self.rotation_speed #TODO: units? Execution order?
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140
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141 dx, dy = cos(self.angle) * self.speed, sin(self.angle) * self.speed
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142 if self._type & 2:
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143 x -= dx
18
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144 else:
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145 x += dx
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146 y += dy
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147
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148 if self.movement_dependant_sprites:
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149 #TODO: is that really how it works?
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150 if x < self.x:
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151 self.set_anim(self.movement_dependant_sprites[2])
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152 self.direction = -1
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153 elif x > self.x:
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154 self.set_anim(self.movement_dependant_sprites[3])
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155 self.direction = +1
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156 elif self.direction is not None:
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157 self.set_anim(self.movement_dependant_sprites[{-1: 0, +1:1}[self.direction]])
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158 self.direction = None
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159
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160
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161 if self.screen_box:
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162 xmin, ymin, xmax, ymax = self.screen_box
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163 x = max(xmin, min(x, xmax))
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164 y = max(ymin, min(y, ymax))
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165
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166
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167 self.x, self.y = x, y
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168 if self._sprite:
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169 changed = self._sprite.update()
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170 visible = self.is_visible(384, 448)
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171 if changed and visible:
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172 self._sprite.update_vertices_uvs_colors()
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173 elif not self._sprite.playing:
34
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174 visible = False
49
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175 self._sprite = None
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176 else:
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177 visible = False
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178
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179
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180 self.frame += 1
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181 return visible
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182
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183
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184
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185 class EnemyManager(object):
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186 def __init__(self, stage, anm_wrapper, ecl, game_state):
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187 self._game_state = game_state
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188 self.stage = stage
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189 self.anm_wrapper = anm_wrapper
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190 self.main = []
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191 self.ecl = ecl
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192 self.objects_by_texture = {}
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193 self.enemies = []
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194 self.processes = []
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195
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196 # Populate main
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197 for frame, sub, instr_type, args in ecl.main:
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198 if not self.main or self.main[-1][0] < frame:
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199 self.main.append((frame, [(sub, instr_type, args)]))
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200 elif self.main[-1][0] == frame:
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201 self.main[-1][1].append((sub, instr_type, args))
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202
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203
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204 def update(self, frame):
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205 if self.main and self.main[0][0] == frame:
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206 for sub, instr_type, args in self.main.pop(0)[1]:
20
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207 if instr_type in (0, 2, 4, 6): # Normal/mirrored enemy
18
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208 x, y, z, life, unknown1, unknown2, unknown3 = args
40
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diff changeset
209 if instr_type & 4:
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diff changeset
210 if x < -990: #102h.exe@0x411820
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diff changeset
211 x = self._game_state.prng.rand_double() * 368
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diff changeset
212 if y < -990: #102h.exe@0x41184b
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diff changeset
213 y = self._game_state.prng.rand_double() * 416
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diff changeset
214 if z < -990: #102h.exe@0x411881
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diff changeset
215 y = self._game_state.prng.rand_double() * 800
49
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diff changeset
216 enemy = Enemy((x, y), life, instr_type, self.anm_wrapper)
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diff changeset
217 self.enemies.append(enemy)
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diff changeset
218 self.processes.append(ECLRunner(self.ecl, sub, enemy, self._game_state))
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diff changeset
219
23
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parents: 22
diff changeset
220
49
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diff changeset
221 # Run processes
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diff changeset
222 self.processes[:] = (process for process in self.processes if process.run_iteration())
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diff changeset
223
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diff changeset
224 # Filter of destroyed enemies
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diff changeset
225 self.enemies[:] = (enemy for enemy in self.enemies if not enemy._removed)
18
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226
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227 # Update enemies
32
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diff changeset
228 visible_enemies = [enemy for enemy in self.enemies if enemy.update(frame)]
56
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diff changeset
229 for enemy in visible_enemies:
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diff changeset
230 enemy._was_visible = True
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diff changeset
231
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diff changeset
232 # Filter out-of-screen enemies
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233 for enemy in tuple(self.enemies):
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diff changeset
234 if enemy._was_visible and not enemy in visible_enemies:
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diff changeset
235 enemy._removed = True
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diff changeset
236 self.enemies.remove(enemy)
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237
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238 # Add enemies to vertices/uvs
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239 self.objects_by_texture = {}
32
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diff changeset
240 for enemy in visible_enemies:
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parents: 22
diff changeset
241 if enemy.is_visible(384, 448): #TODO
37
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parents: 36
diff changeset
242 for key, (count, vertices, uvs, colors) in enemy.get_objects_by_texture().items():
36
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diff changeset
243 if not key in self.objects_by_texture:
37
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diff changeset
244 self.objects_by_texture[key] = (0, [], [], [])
36
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diff changeset
245 self.objects_by_texture[key][1].extend(vertices)
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diff changeset
246 self.objects_by_texture[key][2].extend(uvs)
37
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diff changeset
247 self.objects_by_texture[key][3].extend(colors)
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diff changeset
248 for key, (nb_vertices, vertices, uvs, colors) in self.objects_by_texture.items():
18
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249 nb_vertices = len(vertices)
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diff changeset
250 vertices = pack('f' * (3 * nb_vertices), *chain(*vertices))
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251 uvs = pack('f' * (2 * nb_vertices), *chain(*uvs))
37
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diff changeset
252 colors = pack('B' * (4 * nb_vertices), *chain(*colors))
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diff changeset
253 self.objects_by_texture[key] = (nb_vertices, vertices, uvs, colors)
18
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diff changeset
254