Encounter (.ECT) File Format

Note: This page pertains to Reverse Engineering of Okami.

Explanation

This file defines each encounter on a single map.

File Format

Overall

Start (Byte)	Width (Bytes)	Type	Field Name	Note
0	4	uint32	Number of Entries	Count of encounter definitions
4		ECTEntry array	groups	Encounter definition
		padding	00	Pad zeroes for 4 byte alignment

ECTEntry

Describes a single encounter.

Start (Byte)	Width (Bytes)	Type	Field Name	Note
0	6	PackedTuple\<uint16\>	coordinates	Location of encounter (x, y, z).
6	1	uint8	unknown1	Unknown.
7	1	uint8	escape_radius	How far from the center of the arena to escape the encounter.
8	2	ECTEntryFlags (uint16)	flags	Bitfield of flags.
10	2	uint16	pad	Always 00.
12	2	uint16	index	Increasing, no dupes in file, some missing?
14	2	uint16	unknown3	Unknown.
16	4	uint32	pad2	Always 00.
20	96	EnemyEntry[4]	enemy	One for each enemy type in the encounter.
116	1	uint8	unknown4	Unknown.
117	1	uint8	unknown5	Unknown.
118	1	uint8	unknown6	Unknown.
119	1	uint8	unknownugh	May affect triggering event? If you set the demon gate behind shinshu tree to 0, the bloom patch doesn't appear when you beat the gate.
120	1	uint8	unknown7	Unknown.
121	1	uint8	unknown8	Unknown.
122	1	uint8	unknown9	Unknown.
123	1	uint8	unknowna	Unknown.
124	1	uint8	separate_waves	00 mix enemy types, 01 separate different enemy types to different waves.
125	7	uint8 array	padding	All 00.

ECTEntryFlags Format

Bit	Field Name	Note
0	always_set	Seems to always be 1.
1	unknownb1o1	Unknown.
2	unknownb1o2	Unknown.
3	unknownb1o3	Unknown.
4	day_only	Encounter only available during the day.
5	night_only	Encounter only available at night.
6	inescapable	Encounter cannot be escaped.
7	inescapable2	Encounter cannot be escaped. Only used for devil gates, most no-indicator fights, and 2 scrolls.
8	unrepeatable	Encounter cannot be repeated.
9	unknownb2o1	Unknown.
a	demon_scroll	Encounter is represented by a demon scroll.
b	devil_gate	Encounter is represented by a devil gate.
c	unknownb2o4	Unknown.
d	unknownb2o5	Unknown.
e	unknownb2o6	Unknown.
f	unknownb2o7	Unknown.

EnemyEntry Format

Start (Byte)	Width (Bytes)	Type	Field Name	Note
0	1	uint8	enemy_id	See Enemy ID Table.
1	1	uint8	cat_id	Category ID: 02 is enemies
2	6	uint8\[6\]	unknowns	Unknown.
8	1	uint8	total	Total count of this enemy in this encounter.
9	1	uint8	max_concurrent	Maximum number of this enemy present at once.
10	1	uint8	unknown1	Unknown. Always 00. Maybe padding?
11	1	uint8	unknown2	Unknown.
12	12	uint8 array	padding	All 00.