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annotate stageviewer.py @ 52:ab826bc29aa2

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Add some documentation, GPLv3 headers, README and COPYING file.
author Thibaut Girka <thib@sitedethib.com>
date Mon, 22 Aug 2011 22:37:14 +0200
parents e01e88b06a13
children 3da4de9decd0
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1 #!/usr/bin/env python
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2 # -*- encoding: utf-8 -*-
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3 ##
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4 ## Copyright (C) 2011 Thibaut Girka <thib@sitedethib.com>
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5 ##
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6 ## This program is free software; you can redistribute it and/or modify
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7 ## it under the terms of the GNU General Public License as published
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8 ## by the Free Software Foundation; version 3 only.
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9 ##
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10 ## This program is distributed in the hope that it will be useful,
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11 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 ## GNU General Public License for more details.
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14 ##
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15
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16 import sys
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17 import os
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18
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19 import struct
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20 from math import degrees, radians
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21 from io import BytesIO
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22 from itertools import chain
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23
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24 import pygame
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25
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26 from pytouhou.formats.pbg3 import PBG3
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27 from pytouhou.formats.std import Stage
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28 from pytouhou.formats.anm0 import Animations
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29 from pytouhou.game.sprite import AnmWrapper
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30 from pytouhou.game.background import Background
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31 from pytouhou.opengl.texture import TextureManager
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32
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33 import OpenGL
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34 OpenGL.FORWARD_COMPATIBLE_ONLY = True
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35 from OpenGL.GL import *
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36 from OpenGL.GLU import *
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38
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39 def main(path, stage_num):
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40 # Initialize pygame
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41 pygame.init()
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42 window = pygame.display.set_mode((384, 448), pygame.OPENGL | pygame.DOUBLEBUF)
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43
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44 # Initialize OpenGL
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45 glMatrixMode(GL_PROJECTION)
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46 glLoadIdentity()
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47 gluPerspective(30, float(window.get_width())/window.get_height(), 101010101./2010101., 101010101./10101.)
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48
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49 glEnable(GL_DEPTH_TEST)
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50 glEnable(GL_BLEND)
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51 glEnable(GL_TEXTURE_2D)
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52 glEnable(GL_FOG)
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53 glHint(GL_FOG_HINT, GL_NICEST)
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54 glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST)
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55 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
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56 glEnableClientState(GL_COLOR_ARRAY)
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57 glEnableClientState(GL_VERTEX_ARRAY)
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58 glEnableClientState(GL_TEXTURE_COORD_ARRAY)
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59
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60 # Load data
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61 with open(path, 'rb') as file:
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62 archive = PBG3.read(file)
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63 texture_manager = TextureManager(archive)
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64
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65 stage = Stage.read(BytesIO(archive.extract('stage%d.std' % stage_num)), stage_num)
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66 background_anim = Animations.read(BytesIO(archive.extract('stg%dbg.anm' % stage_num)))
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67 background = Background(stage, AnmWrapper((background_anim,)))
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68
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69 print(background.stage.name)
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70
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71 frame = 0
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72
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73 # Main loop
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74 clock = pygame.time.Clock()
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75 while True:
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76 # Check events
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77 for event in pygame.event.get():
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78 if event.type == pygame.QUIT or (event.type == pygame.KEYDOWN and event.key in (pygame.K_ESCAPE, pygame.K_q)):
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79 sys.exit(0)
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80 elif event.type == pygame.KEYDOWN:
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81 if event.key == pygame.K_RETURN and event.mod & pygame.KMOD_ALT:
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82 pygame.display.toggle_fullscreen()
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83
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84 # Update game
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85 background.update(frame)
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86
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87 # Draw everything
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88 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
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89
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90 fog_b, fog_g, fog_r, _, fog_start, fog_end = background.fog_interpolator.values
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91 x, y, z = background.position_interpolator.values
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92 dx, dy, dz = background.position2_interpolator.values
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93
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94 glFogi(GL_FOG_MODE, GL_LINEAR)
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95 glFogf(GL_FOG_START, fog_start)
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96 glFogf(GL_FOG_END, fog_end)
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97 glFogfv(GL_FOG_COLOR, (fog_r / 255., fog_g / 255., fog_b / 255., 1.))
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98
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99 #TODO
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100 glMatrixMode(GL_MODELVIEW)
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101 glLoadIdentity()
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102 # Some explanations on the magic constants:
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103 # 192. = 384. / 2. = width / 2.
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104 # 224. = 448. / 2. = height / 2.
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105 # 835.979370 = 224./math.tan(math.radians(15)) = (height/2.)/math.tan(math.radians(fov/2))
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106 # This is so that objects on the (O, x, y) plane use pixel coordinates
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107 gluLookAt(192., 224., - 835.979370 * dz,
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108 192. + dx, 224. - dy, 0., 0., -1., 0.)
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109 #print(glGetFloat(GL_MODELVIEW_MATRIX))
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110 glTranslatef(-x, -y, -z)
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111
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112 for texture_key, (nb_vertices, vertices, uvs, colors) in background.objects_by_texture.items():
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113 glBindTexture(GL_TEXTURE_2D, texture_manager[texture_key])
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114 glVertexPointer(3, GL_FLOAT, 0, vertices)
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115 glTexCoordPointer(2, GL_FLOAT, 0, uvs)
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116 glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors)
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117 glDrawArrays(GL_QUADS, 0, nb_vertices)
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118
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119 #TODO: show the game itself
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120 # It is displayed on (0, 0, 0), (0, 448, 0), (388, 448, 0), (388, 0, 0)
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121 # using a camera at (192, 224, -835.979370) looking right behind itself
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122 # Depth test should be disabled when rendering the game
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123
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124 pygame.display.flip()
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125 clock.tick(120)
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126 frame += 1
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127
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128
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129
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130 try:
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131 file_path, stage_num = sys.argv[1:]
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132 stage_num = int(stage_num)
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133 except ValueError:
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134 print('Usage: %s std_dat_path stage_num' % sys.argv[0])
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135 else:
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Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
136 main(file_path, stage_num)
787d2eb13c2d Add buggy stageviewer!
Thibaut Girka <thib@sitedethib.com>
parents:
diff changeset
137