# Game settings.
game_settings = "game_settings" / Struct(
Array(16, AgeEnum("starting_ages" / Int32sl)), Padding(4), Padding(8),
"map_id" / If(lambda ctx: ctx._._.version != Version.AOK, Int32ul),
Peek("difficulty_id" / Int32ul), DifficultyEnum(
"difficulty" / Int32ul), "lock_teams" / Int32ul,
If(lambda ctx: ctx._._.version == Version.DE, Padding(29)),
Array(
9, "player_info" /
Struct("data_ref" / Int32ul, PlayerTypeEnum("type" / Int32ul),
"name" / PascalString(lengthfield="name_length" / Int32ul))),
Padding(36), Padding(4),
IfThenElse(
lambda ctx: ctx._._.version == Version.DE, "end_of_game_settings" /
Find(b'\x9a\x99\x99\x99\x99\x99\x01\x40', None), "end_of_game_settings"
/ Find(b'\x9a\x99\x99\x99\x99\x99\xf9\x3f', None)))
# Triggers.
triggers = "triggers" / Struct(
Padding(1),
"num_triggers" / Int32ul,
# parse if num > 0
If(lambda ctx: ctx._._.version == Version.DE, Padding(1032)))
# Scenario metadata.
scenario = "scenario" / Struct(
scenario_header,
messages,
scenario_players,
victory,
# Objects that exist on the map at the start of the recorded game
existing_object = "objects" / Struct(
"type" / Byte,
"player_id" / Byte,
Embedded("properties" / Switch(lambda ctx: ctx.type, {
10: static,
20: animated,
25: animated,
30: moving,
40: action,
50: base_combat,
60: missile,
70: combat,
80: building,
90: static
},
default=Pass)),
)
# Default values for objects, nothing of real interest
default_object = "default_object" / Struct(
ObjectTypeEnum("type" / Byte), Padding(14),
"properties" / Switch(lambda ctx: ctx.type, {
"gaia": Padding(24),
"object": Padding(32),
"fish": Padding(32),
"other": Padding(28),
},
default="end_of_object" / Find(b'\x21\x16', 200)))
# The following sections can be refined with further research.
# There are clearly some patterns.
"has_extra"/Byte,
If(lambda ctx: ctx.has_extra == 2, Padding(
34
)),
Padding(4)
)
# Units - typically villagers, scout, and any sheep within LOS
unit = "unit"/Struct(
Embedded(existing_object_header),
# Not pretty, but we don't know how to parse a unit yet.
# Also, this only works on non-restored games.
# This isn't a constant footer, these are actually initial values of some sort.
"end_of_unit"/Find(b'\xff\xff\xff\xff\x00\x00\x80\xbf\x00\x00\x80\xbf\xff\xff\xff' \
b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x00', None)
)
# Buildings - ID doesn't match Build action ID - buildings can have multiple parts
building = "building"/Struct(
Embedded(existing_object_header),
Padding(32),
# The following sections can be refined with further research.
# There are clearly some patterns.
"has_extra"/Byte,
If(lambda ctx: ctx.has_extra == 2, Padding(
17
)),
Padding(16),
"has_extra2"/Byte,
If(lambda ctx: ctx.has_extra2 == 1, Padding(
lambda ctx: ctx.num_saved_views, "saved_view" /
Struct("camera_x" / Float32l, "camera_y" / Float32l))),
))),
"spawn_location" / Struct("x" / Int16ul, "y" / Int16ul),
"culture" / Byte,
"civilization" / Byte,
"game_status" / Byte,
"resigned" / Flag,
Padding(1),
"player_color" / Byte,
Padding(1))
# Initial state of players, including Gaia.
player = "players" / Struct(
"type" / Byte, "unk" / Byte, attributes, "end_of_attr" / Tell,
"start_of_objects" / Find(b'\x0b\x00\x08\x00\x00\x00\x02\x00\x00', None),
Embedded("x" / Struct("end_of_objects" / GotoObjectsEnd(),
Array(0, existing_object))))
x = Struct(
"start_of_objects" / Find(b'\x0b\x00\x08\x00\x00\x00\x02\x00\x00', None),
# If this isn't a restored game, we can read all the existing objects
Embedded("not_restored" / If(
this._.restore_time == 0 and this._._.version != Version.DE,
Struct(
RepeatUpTo(b'\x00', existing_object),
Padding(14),
"eoo" / Tell,
"end_of_objects" /
GotoObjectsEnd() # Find the objects end just in case
))),
# Can't parse existing objects in a restored game, skip the whole structure
"civilization" / Byte,
"game_status" / Byte,
"resigned" / Flag,
Padding(1),
"player_color" / Byte,
Padding(1),
)
# Initial state of players, including Gaia.
player = "players" / Struct(
"type" / Byte,
"unk" / Byte,
attributes,
"end_of_attr" / Tell,
"start_of_objects" / Find([
b'\x0b\x00\x08\x00\x00\x00\x02\x00\x00',
b'\x0b\x00\x0e\x00\x00\x00\x02\x00\x00'
], None),
Embedded(
IfThenElse(
lambda ctx: ctx._.restore_time == 0,
Struct(
"objects" / RepeatUpTo(b'\x00', existing_object),
Const(b'\x00\x0b'),
# Skip Gaia trees for performance reasons
Embedded(
IfThenElse(
this._.type != 2,
Struct(
"s_size" / Int32ul, "s_grow" / Int32ul,
"sleeping_objects" /
RepeatUpTo(b'\x00', existing_object),
Array(
lambda ctx: ctx.num_saved_views, "saved_view" /
Struct("camera_x" / Float32l, "camera_y" / Float32l))),
"map_size" / Struct("x" / Int16ul, "y" / Int16ul),
"culture" / Byte,
"civilization" / Byte,
"game_status" / Byte,
"resigned" / Flag,
Padding(1),
"player_color" / Byte,
Padding(1))
# Initial state of players, including Gaia.
player = "players" / Struct(
attributes,
"start_of_objects" / Find(b'\x0b\x00\x08\x00\x00\x00\x02\x00\x00', None),
# If this isn't a restored game, we can read all the existing objects
Embedded("not_restored" / If(
this._.restore_time == 0,
Struct(
RepeatUpTo(b'\x00', existing_object),
Padding(14),
"end_of_objects" /
GotoObjectsEnd() # Find the objects end just in case
))),
# Can't parse existing objects in a restored game, skip the whole structure
Embedded("is_restored" / If(
this._.restore_time > 0,
Struct(
"end_of_objects" / GotoObjectsEnd(),
If(lambda ctx: find_save_version(ctx) >= 13.07, Padding(1)),
If(lambda ctx: find_save_version(ctx) >= 13.34, Padding(132)),
If(lambda ctx: find_save_version(ctx) >= 20.06, Padding(1)),
If(lambda ctx: find_save_version(ctx) >= 20.16, Padding(4)),
If(lambda ctx: find_save_version(ctx) >= 25.02, Padding(4 * 16)),
If(lambda ctx: find_save_version(ctx) >= 25.06, Padding(4)))),
Array(
9, "player_info" /
Struct("data_ref" / Int32ul, PlayerTypeEnum("type" / Int32ul),
"name" / PascalString(lengthfield="name_length" / Int32ul))),
Padding(36), Padding(4),
IfThenElse(
lambda ctx: ctx._._.version == Version.DE,
Struct(
If(lambda ctx: find_save_version(ctx) < 13.34,
Find(struct.pack('<d', 2.2), None)),
If(lambda ctx: 25.06 > find_save_version(ctx) >= 13.34,
Find(struct.pack('<d', 2.4), None)),
If(lambda ctx: 25.22 > find_save_version(ctx) >= 25.06,
Find(struct.pack('<d', 2.5), None)),
If(lambda ctx: 26.16 > find_save_version(ctx) >= 25.22,
Find(struct.pack('<d', 2.6), None)),
If(lambda ctx: find_save_version(ctx) >= 26.16,
Find(struct.pack('<d', 3.0), None))), "end_of_game_settings" /
Find(b'\x9a\x99\x99\x99\x99\x99\xf9\\x3f', None)))
# Triggers.
triggers = "triggers" / Struct(
Padding(1),
"num_triggers" / Int32ul,
# parse if num > 0
ResourceEnum("resource_type"/Int16sl),
"amount"/Float32l,
"worker_count"/IfThenElse(lambda ctx: find_save_version(ctx) == 12.36, Int32ul, Byte),
"current_damage"/Byte,
"damaged_lately_timer"/Byte,
"under_attack"/Byte,
"pathing_group_len"/Int32ul,
"pathing_group"/Array(lambda ctx: ctx.pathing_group_len, "object_id"/Int32ul),
"group_id"/Int32sl,
"roo_already_called"/Byte,
"de_static_unk1"/If(lambda ctx: find_version(ctx) == Version.DE, Bytes(17)),
If(lambda ctx: find_save_version(ctx) >= 26.16, Byte),
"de_has_object_props"/If(lambda ctx: find_version(ctx) == Version.DE, Int16ul),
"de_object_props"/IfThenElse(lambda ctx: ctx.de_has_object_props == 1, Struct(
Bytes(162),
Find(b'`\n\x00\x00`\n\x00\x00', 1000), # Skip a large unparseable block that (likely) contains RMS-modified object data
Bytes(2)
), Struct(
"has_sprite_list"/Byte,
"sprite_list"/If(lambda ctx: ctx.has_sprite_list != 0, RepeatUntil(lambda x,lst,ctx: lst[-1].type == 0, sprite_list)),
"de_extension"/If(lambda ctx: find_version(ctx) == Version.DE, Struct(
"particles"/Array(5, particle),
If(lambda ctx: find_save_version(ctx) >= 13.15, Bytes(5)),
If(lambda ctx: find_save_version(ctx) >= 13.17, Bytes(2)),
If(lambda ctx: find_save_version(ctx) >= 13.34, Struct(
Bytes(2),
de_string,
de_string,
Bytes(2)
))
))
If(lambda ctx: find_save_version(ctx) >= 25.06, Padding(4)),
)),
Array(
9, "player_info" /
Struct("data_ref" / Int32ul, PlayerTypeEnum("type" / Int32ul),
"name" / PascalString(lengthfield="name_length" / Int32ul))),
Padding(36),
Padding(4),
IfThenElse(
lambda ctx: ctx._._.version == Version.DE,
IfThenElse(
lambda ctx: find_save_version(ctx) >= 13.34,
IfThenElse(
lambda ctx: find_save_version(ctx) >= 25.06,
"end_of_game_settings" /
Find(b'\x00\x00\x00\x00\x00\x00\x04\x40', None), # double: 2.5
"end_of_game_settings" /
Find(b'\x33\x33\x33\x33\x33\x33\x03\x40', None) # double: 2.4
),
"end_of_game_settings" /
Find(b'\x9a\x99\x99\x99\x99\x99\x01\x40', None) # double: 2.2
),
"end_of_game_settings" /
Find(b'\x9a\x99\x99\x99\x99\x99\xf9\\x3f', None) # double: 1.6
))
# Triggers.
triggers = "triggers" / Struct(
Padding(1),
"num_triggers" / Int32ul,
# parse if num > 0
Array(
this.num_rules, "rules" / Struct(
Padding(12), "num_facts" / Byte, "num_facts_actions" / Byte,
Padding(2),
Array(
16, "data" / Struct("type" / Int32ul, "id" / Int16ul, Padding(
2), Array(4, "params" / Int32ul))))))
ai = "ai" / Struct(
"has_ai" / Int32ul, # if true, parse AI
"yep" / If(
this.has_ai == 1,
IfThenElse(
lambda ctx: ctx._.version == Version.DE,
Find(
b'\00' * 4096, None
), # The ai structure in DE seems to have changed, for now we simply skip it
"ais" / Struct(
"max_strings" / Int16ul,
"num_strings" / Int16ul,
Padding(4),
Array(
this.num_strings, "strings" /
PascalString(lengthfield="name_length" / Int32ul,
encoding='latin1')),
Padding(6),
Array(8, script),
Padding(104),
Array(80, "timers" / Int32sl),
Array(256, "shared_goals" / Int32sl),
Padding(4096),