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reverse-engineer subcommands sent during game join

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This commit is contained in:
Martin Michelsen
2022-10-03 21:44:30 -07:00
parent a16c207f4d
commit 50e1b79b1e
4 changed files with 142 additions and 14 deletions
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src/CommandFormats.hh
+85 -4
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@@ -3224,12 +3224,93 @@ struct G_EnemyDropItemRequest_PC_V3_BB_6x60 : G_EnemyDropItemRequest_DC_6x60 {
// 68: Telepipe/Ryuker
// 69: Unknown (supported; game only)
// 6A: Unknown (supported; game only; not valid on Episode 3)
// 6B: Sync enemy state (used while loading into game)
// 6C: Sync object state (used while loading into game)
// 6D: Sync item state (used while loading into game)
// 6B: Sync enemy state (used while loading into game; same header format as 6E)
// 6C: Sync object state (used while loading into game; same header format as 6E)
// 6D: Sync item state (used while loading into game; same header format as 6E)
// 6E: Sync flag state (used while loading into game)
struct G_SyncGameStateHeader_6x6B_6x6C_6x6D_6x6E {
uint8_t subcommand;
parray<uint8_t, 3> unused;
le_uint32_t subcommand_size;
le_uint32_t unknown_a1;
le_uint32_t data_size; // Must be <= subcommand_size - 0x10
// BC0-compressed data follows here (use bc0_decompress from Compression.hh)
};
// 6F: Unknown (used while loading into game)
// 70: Unknown (used while loading into game)
// 70: Sync player disp data and inventory (used while loading into game)
// Annoyingly, they didn't use the same format as the 65/67/68 commands here,
// and instead rearranged a bunch of things.
// TODO: Some missing fields should be easy to find in the future (e.g. when the
// sending player doesn't have 0 meseta, for example)
struct G_Unknown_6x70 {
// Offsets in this struct are relative to the overall command header
/* 0004 */ uint8_t subcommand; // == 0x70
/* 0005 */ uint8_t basic_size; // == 0
/* 0006 */ le_uint16_t unused;
/* 0008 */ le_uint32_t subcommand_size;
/* 000C */ parray<le_uint16_t, 2> unknown_a1;
// [1] and [3] in this array (and maybe [2] also) appear to be le_floats;
// they could be the player's current (x, y, z) coords
/* 0010 */ parray<le_uint32_t, 7> unknown_a2;
/* 002C */ parray<le_uint16_t, 4> unknown_a3;
/* 0034 */ parray<parray<le_uint32_t, 3>, 5> unknown_a4;
/* 0070 */ le_uint32_t unknown_a5;
/* 0074 */ le_uint32_t player_tag;
/* 0078 */ le_uint32_t guild_card_number;
/* 007C */ parray<le_uint32_t, 2> unknown_a6;
/* 0084 */ struct {
parray<le_uint16_t, 2> unknown_a1;
parray<le_uint32_t, 6> unknown_a2;
} unknown_a7;
/* 00A0 */ le_uint32_t unknown_a8;
/* 00A4 */ parray<uint8_t, 0x14> unknown_a9;
/* 00B8 */ le_uint32_t unknown_a10;
/* 00BC */ le_uint32_t unknown_a11;
/* 00C0 */ parray<uint8_t, 0x14> technique_levels; // Last byte is uninitialized
/* 00D4 */ struct {
parray<uint8_t, 0x10> name;
uint64_t unknown_a2; // Same as unknown_a2 in PlayerDispDataDCPCV3, presumably
le_uint32_t name_color;
uint8_t extra_model;
parray<uint8_t, 0x0F> unused;
le_uint32_t name_color_checksum;
uint8_t section_id;
uint8_t char_class;
uint8_t v2_flags;
uint8_t version;
le_uint32_t v1_flags;
le_uint16_t costume;
le_uint16_t skin;
le_uint16_t face;
le_uint16_t head;
le_uint16_t hair;
le_uint16_t hair_r;
le_uint16_t hair_g;
le_uint16_t hair_b;
le_uint32_t proportion_x;
le_uint32_t proportion_y;
} disp_part2;
/* 0124 */ struct {
PlayerStats stats;
parray<uint8_t, 0x0A> unknown_a1;
le_uint32_t level;
le_uint32_t experience;
le_uint32_t meseta;
} disp_part1;
/* 0148 */ struct {
le_uint32_t num_items;
// Entries >= num_items in this array contain uninitialized data (usually
// the contents of a previous sync command)
parray<PlayerInventoryItem, 0x1E> items;
} inventory;
/* 0494 */ le_uint32_t unknown_a15;
};
// 71: Unknown (used while loading into game)
// 72: Unknown (used while loading into game)
// 73: Invalid subcommand (but apparently valid on BB; function is unknown)