AFSM (File Format) - Revision history

Embyr 75: {{research}}

2015-03-14T15:04:41Z

Aruki at 12:56, 26 January 2015

2015-01-26T12:56:57Z

Skysurf3000: condition names are zeo terminated

2015-01-26T12:36:58Z

condition names are zeo terminated

Skysurf3000: The "trigger count" at the end of the header is actually a "condition count"

2015-01-26T12:35:27Z

The "trigger count" at the end of the header is actually a "condition count"

Aruki: /* Condition */

2015-01-26T03:30:27Z

‎Condition

Aruki at 01:40, 26 January 2015

2015-01-26T01:40:26Z

Aruki at 01:39, 26 January 2015

2015-01-26T01:39:48Z

Aruki: This may not be the best formatting! I'm trying something new because the Offset/Size/Description format doesn't work that well in formats with lots of variable-length elements. Anyone who wants to feel free to reformat.

2015-01-25T14:08:46Z

This may not be the best formatting! I'm trying something new because the Offset/Size/Description format doesn't work that well in formats with lots of variable-length elements. Anyone who wants to feel free to reformat.

New page

The '''AFSM format''' controls AI behavior; it stands for '''A'''I '''F'''inite '''S'''tate '''M'''achine. AI-controlled creatures have a limited number of possible states they can be in. The AFSM file defines those states, and what triggers can cause it to advance to another state.

__TOC__

== Format ==

=== Header ===

The format first defines a list of states, then defines each trigger attached to each state. There are no state/trigger type IDs; rather, the name string itself is used as an identifier to fetch the corresponding AI function. It starts with a short header listing each state and then providing a trigger count. Note that the trigger count isn't actually used to parse the file; it's present merely because the game uses it to allocate space for each trigger ahead of time.

{| class="wikitable"
! Type
! Count
! Description
|-
| long
| 1
| '''State count''' (SC)
|-
| string
| SC
| '''State names''' (each zero-terminated)
|-
| long
| 1
| '''Trigger count'''
|}

=== State Triggers ===

Following that, it iterates through each state, defining the triggers associated with each one. Triggers are composed of a target state index and a number of conditions; when all the conditions associated with a trigger are satisfied, it advances to the targeted state. The state trigger definitions are structured like this:

{| class="wikitable"
! Type
! Count
! Description
|-
| long
| 1
| '''Trigger count''' (TC)
|-
| Trigger
| TC
| '''Triggers'''
|}

=== Trigger ===

{| class="wikitable"
! Type
! Count
! Description
|-
| long
| 1
| '''Condition count''' (CC)
|-
| Trigger condition
| CC
| '''Conditions'''
|}

=== Condition ===

{| class="wikitable"
! Type
! Count
! Description
|-
| string
| 1
| '''Condition name'''
|-
| float
| 1
| Unknown (possibly AI function parameter)
|-
| long
| 1
| '''Target state index''' (note: this is ONLY present on the first condition for each trigger!)
|}

[[Category:File Formats]]
[[Category:Metroid Prime]]
[[Category:Metroid Prime 2: Echoes]]

@@ Line 1: / Line 1: @@
 The '''AFSM format''' controls AI behavior; it stands for '''A'''I '''F'''inite '''S'''tate '''M'''achine. AI-controlled creatures have a limited number of possible states they can be in. The AFSM file defines those states, and what triggers can cause it to transition to another state.
-{{researchminor|reason=We should have a list of possible states and triggers and a short explanation of what they generally do on this page somewhere. Also, the float settings on conditions is unknown.}}
+{{research|1|We should have a list of possible states and triggers and a short explanation of what they generally do on this page somewhere. Also, the float settings on conditions is unknown.}}
 __TOC__

@@ Line 1: / Line 1: @@
 The '''AFSM format''' controls AI behavior; it stands for '''A'''I '''F'''inite '''S'''tate '''M'''achine. AI-controlled creatures have a limited number of possible states they can be in. The AFSM file defines those states, and what triggers can cause it to advance to another state.
-{{researchminor|reason=We should have a list of possible states and trigger conditions and a short explanation of what they generally do on this page somewhere.}}
+{{researchminor|reason=We should have a list of possible states and trigger conditions and a short explanation of what they generally do on this page somewhere. Also, the float settings on conditions is unknown.}}
 __TOC__

← Older revision		Revision as of 01:39, 26 January 2015
Line 1:		Line 1:
	The '''AFSM format''' controls AI behavior; it stands for '''A'''I '''F'''inite '''S'''tate '''M'''achine. AI-controlled creatures have a limited number of possible states they can be in. The AFSM file defines those states, and what triggers can cause it to advance to another state.		The '''AFSM format''' controls AI behavior; it stands for '''A'''I '''F'''inite '''S'''tate '''M'''achine. AI-controlled creatures have a limited number of possible states they can be in. The AFSM file defines those states, and what triggers can cause it to advance to another state.
		+
		+	{{researchminor\|reason=We should have a list of possible states and trigger conditions and a short explanation of what they generally do on this page somewhere.}}

	__TOC__		__TOC__

@@ Line 1: / Line 1: @@
-The '''AFSM format''' controls AI behavior; it stands for '''A'''I '''F'''inite '''S'''tate '''M'''achine. AI-controlled creatures have a limited number of possible states they can be in. The AFSM file defines those states, and what triggers can cause it to advance to another state.
+The '''AFSM format''' controls AI behavior; it stands for '''A'''I '''F'''inite '''S'''tate '''M'''achine. AI-controlled creatures have a limited number of possible states they can be in. The AFSM file defines those states, and what triggers can cause it to transition to another state.
-{{researchminor|reason=We should have a list of possible states and trigger conditions and a short explanation of what they generally do on this page somewhere. Also, the float settings on conditions is unknown.}}
+{{researchminor|reason=We should have a list of possible states and triggers and a short explanation of what they generally do on this page somewhere. Also, the float settings on conditions is unknown.}}
 __TOC__
@@ Line 9: / Line 9: @@
 === Header ===
-The format first defines a list of states, then defines each trigger attached to each state. There are no state/trigger type IDs; rather, the name string itself is used as an identifier to fetch the corresponding AI function. It starts with a short header listing each state and then providing a trigger count. Note that the trigger count isn't actually used to parse the file; it's present merely because the game uses it to allocate space for each trigger ahead of time.
+The format first defines a list of states, then defines the triggers for each transition attached to each state. There are no state/trigger type IDs; rather, the name string itself is used as an identifier to fetch the corresponding AI function. It starts with a short header listing each state and then providing a trigger count. Note that the trigger count isn't actually used to parse the file; it's present merely because the game uses it to allocate space for each trigger ahead of time.
 {| class="wikitable"
@@ Line 26: / Line 26: @@
 | long
 | 1
-| '''Condition count'''
+| '''Trigger count'''
 |}
-=== State Triggers ===
+=== State Transitions ===
-Following that, it iterates through each state, defining the triggers associated with each one. Triggers are composed of a target state index and a number of conditions; when all the conditions associated with a trigger are satisfied, it advances to the targeted state. The state trigger definitions are structured like this:
+Following that, it iterates through each state, defining the transitions associated with each one. Transitions are composed of a target state index and a number of triggers; when all the triggers associated with a transition are satisfied, it advances to the targeted state. The state transitions are structured like this:
 {| class="wikitable"
@@ Line 40: / Line 40: @@
 | long
 | 1
-| '''Trigger count''' (TC)
+| '''Transition count''' (TC)
 |-
-| Trigger
+| Transition
 | TC
-| '''Triggers'''
+| '''Transitions'''
 |}
-=== Trigger ===
+=== Transitions ===
 {| class="wikitable"
@@ Line 56: / Line 56: @@
 | long
 | 1
-| '''Condition count''' (CC)
+| '''Trigger count''' (TC)
 |-
-| Trigger condition
+| Trigger
-| CC
+| TC
-| '''Conditions'''
+| '''Triggers'''
 |}
-=== Condition ===
+=== Trigger ===
 {| class="wikitable"
@@ Line 72: / Line 72: @@
 | string
 | 1
-| '''Condition name''' (zero terminated)
+| '''Trigger name''' (zero-terminated)
 |-
 | float
@@ Line 80: / Line 80: @@
 | long
 | 1
-| '''Target state index''' (note: this is ONLY present on the first condition for each trigger!)
+| '''Target state index''' (note: this is ONLY present on the first trigger for each transition!)
 |}

@@ Line 76: / Line 76: @@
 | float
 | 1
-| Unknown (possibly AI function parameter)
+| {{unknown|'''Unknown''' (possibly AI function parameter)}}
 |-
 | long