0x34 — character_expression

Resolves a character option object and calls CExpressionControl::BlinkControll and/or CExpressionControl::MouthControll.

proven— handler traced, and exercised by at least one shipped script.

At a glance

Opcode	`0x34` (52)
Handler	`CRadiScript::Command_34`
Signature	`CRadiScript::Command_34(int,SCR_DATA*,unsigned int,unsigned int)`
Translation unit	`r_script_run2.cpp`
Address	— debug build; click for all 3
Handler size	`0x1DC` (476 bytes)
Engine name	`character_expression`
Family	Characters
Command size	`4 + extra_words * 4` bytes

Handler behaviour

Resolves a character option object and calls CExpressionControl::BlinkControll and/or CExpressionControl::MouthControll.

Encoding

The command header is one 32-bit word, as described in §3 Instruction encoding:

 31            24 23            16 15             8 7              0
+----------------+----------------+----------------+----------------+
|  flags         |  argument byte |  extra words   |  0x34          |
+----------------+----------------+----------------+----------------+

Bits 8–15 give the number of 32-bit operand words that follow. Bits 16–23 are handed to the handler as a bitfield; on character commands bit 0 normally says whether a character selector word is present. Bit 31 is the keep-going bit.

Operand fields

8 documented fields. input fields are read from the command's operand words; derived fields are computed from other fields rather than stored separately.

Field	Role	Meaning
`arg`	derived	Raw handler argument byte from the command header. It is printed only when it differs from the value the named fields already imply, so seeing it means the command uses an unusual argument encoding.
`blink`	input	Blink control byte passed to CExpressionControl::BlinkControll.
`character`	input	The packed 32-bit character selector word. Its low half is the character id and byte 2 is a secondary class/variant input; see `character_number` and `character_variant`.
`expression`	input	Expression selector byte passed to the expression control object.
`mouth`	input	Mouth control byte passed to CExpressionControl::MouthControll.
`mouth_arg0`	input	Argument 0 passed to the engine call for `mouth`.
`mouth_arg1`	input	Argument 1 passed to the engine call for `mouth`.
`yield`	derived	Pause the script here for one game frame; the next command runs on the following update. Lines without it keep running immediately.

Engine calls

Engine functions this handler was observed calling:

CCharacterManager::GetCharacterClass2(int,unsigned int,const CCharacter*,unsigned int)
CCharacterManager::GetCharacterOptionClass(const CCharacter*)
CExpressionControl::BlinkControll(unsigned char,float)
CExpressionControl::MouthControll(unsigned char,unsigned char,unsigned char)
CRadiScript::GetCharacterID(unsigned int&,unsigned int&,unsigned int*,SCR_DATA*,unsigned int)

Bit masks

Masks the handler applies to its argument byte or operand words:

0x00FF 0x0001