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comparison pytouhou/formats/std.py @ 377:70e2ed71b09c

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Add meaningful exceptions in format parsing.
author Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
date Wed, 29 Aug 2012 18:34:28 +0200
parents 61adb5453e46
children d1f0bb0b7a17
comparison
equal deleted inserted replaced
376:69ec72b990a4 377:70e2ed71b09c
79 """ 79 """
80 80
81 stage = Stage() 81 stage = Stage()
82 82
83 nb_models, nb_faces = unpack('<HH', file.read(4)) 83 nb_models, nb_faces = unpack('<HH', file.read(4))
84 object_instances_offset, script_offset = unpack('<II', file.read(8)) 84 object_instances_offset, script_offset, zero = unpack('<III', file.read(12))
85 if file.read(4) != b'\x00\x00\x00\x00': 85 assert zero == 0
86 raise Exception #TODO
87 86
88 stage.name = read_string(file, 128, 'shift_jis') 87 stage.name = read_string(file, 128, 'shift_jis')
89 88
90 bgm_a = read_string(file, 128, 'shift_jis') 89 bgm_a = read_string(file, 128, 'shift_jis')
91 bgm_b = read_string(file, 128, 'shift_jis') 90 bgm_b = read_string(file, 128, 'shift_jis')
114 # Read model quads 113 # Read model quads
115 while True: 114 while True:
116 unknown, size = unpack('<HH', file.read(4)) 115 unknown, size = unpack('<HH', file.read(4))
117 if unknown == 0xffff: 116 if unknown == 0xffff:
118 break 117 break
119 if size != 0x1c: 118 assert size == 0x1c
120 raise Exception #TODO
121 script_index, x, y, z, width, height = unpack('<Hxxfffff', file.read(24)) 119 script_index, x, y, z, width, height = unpack('<Hxxfffff', file.read(24))
122 model.quads.append((script_index, x, y, z, width, height)) 120 model.quads.append((script_index, x, y, z, width, height))
123 stage.models.append(model) 121 stage.models.append(model)
124 122
125 123
127 file.seek(object_instances_offset) 125 file.seek(object_instances_offset)
128 while True: 126 while True:
129 obj_id, unknown, x, y, z = unpack('<HHfff', file.read(16)) 127 obj_id, unknown, x, y, z = unpack('<HHfff', file.read(16))
130 if (obj_id, unknown) == (0xffff, 0xffff): 128 if (obj_id, unknown) == (0xffff, 0xffff):
131 break 129 break
132 if unknown != 256: 130 assert unknown == 256 #TODO: really?
133 raise Exception #TODO
134 stage.object_instances.append((obj_id, x, y, z)) 131 stage.object_instances.append((obj_id, x, y, z))
135 132
136 133
137 # Read other funny things (script) 134 # Read the script
138 file.seek(script_offset) 135 file.seek(script_offset)
139 while True: 136 while True:
140 frame, opcode, size = unpack('<IHH', file.read(8)) 137 frame, opcode, size = unpack('<IHH', file.read(8))
141 if (frame, opcode, size) == (0xffffffff, 0xffff, 0xffff): 138 if (frame, opcode, size) == (0xffffffff, 0xffff, 0xffff):
142 break 139 break
143 if size != 0x0c: 140 assert size == 0x0c
144 raise Exception #TODO
145 data = file.read(size) 141 data = file.read(size)
146 if opcode in cls._instructions: 142 if opcode in cls._instructions:
147 args = unpack('<%s' % cls._instructions[opcode][0], data) 143 args = unpack('<%s' % cls._instructions[opcode][0], data)
148 else: 144 else:
149 args = (data,) 145 args = (data,)