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'''ATTR''' is a [[CAOS]] command and function used to change or output the attributes (characteristics) of an [[agent]].
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'''ATTR''' is a [[CAOS]] command and function used to change or output the attributes (characteristics) of an [[agent]]. Each attribute is set by a particular number - the final ATTR number is the sum of those attributes.  Whenever ATTR changes, the [[engine]] checks that the agent is in a valid position in the world.[https://web.archive.org/web/20050312122959/http://www.freewebs.com/alimaggs/creaturesdev/cdn/c3/knowledgebase/c3_errors.html]
  
 
==Usage==
 
==Usage==
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'''16''' - Creatures can't see it.<br />
 
'''16''' - Creatures can't see it.<br />
 
'''32''' - Floating on screen<br />
 
'''32''' - Floating on screen<br />
'''64''' - Limits movement to current room<br />
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'''64''' - Limits movement to current room (wallbound)<br />
'''128''' - Movement limited by ground surface<br />
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'''128''' - Movement limited by ground surface (groundbound)<br />
 
NOTE: 128 and 64 cannot be combined. <br />
 
NOTE: 128 and 64 cannot be combined. <br />
 
<br />
 
<br />
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*[[BHVR]] for Creature permissions
 
*[[BHVR]] for Creature permissions
 
*The bitwise operators [[ANDV]], [[ORRV]], [[NOTV]]
 
*The bitwise operators [[ANDV]], [[ORRV]], [[NOTV]]
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==External links==
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*[http://songua.com/creatures/caosapps/ CAOS APPS] - online ATTR calculator for C3/DS.
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*[http://web.archive.org/web/20050312123240/http://www.freewebs.com/alimaggs/creaturesdev/cdn/c3/knowledgebase/c3_agentprop.html Agent Properties] - an in-depth explanation of each C3/DS attribute at an archive of the [[CDN]].
  
 
[[category:C3 CAOS Commands]]
 
[[category:C3 CAOS Commands]]
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[[Category:C1 CAOS Commands]]

Revision as of 23:40, 15 March 2018

ATTR is a CAOS command and function used to change or output the attributes (characteristics) of an agent. Each attribute is set by a particular number - the final ATTR number is the sum of those attributes. Whenever ATTR changes, the engine checks that the agent is in a valid position in the world.[1]

Usage

Command

Syntax: ATTR binary_flags(int)

Sets the attributes of the current TARG to those specified by the bitmap binary_flags. This should be the sum of all the relevant attribute flags from the list below.

The attributes in Creatures 1 are:
1 - Can be picked up by creatures.
2 - Can be picked up by the hand.
4 - Can be activated using the hand.
8 - Carries other objects or creatures (only for use in vehicles).
16 - Creatures can't see it.
32 - Floating on screen
64 - Limits movement to current room (wallbound)
128 - Movement limited by ground surface (groundbound)
NOTE: 128 and 64 cannot be combined.

The attributes in Creatures 3 are:
1 - Can be picked up by other agents.
2 - Can be picked up by the hand.
4 - Can be activated using the hand.
8 - Vehicle only: Will automatically hold agents dropped into its cabin.
16 - Creatures can't see it. (From the CAOS docs: '...applies to ESEE and STAR on creatures, as well as internal creature code.')
32 - Stays in one position relative to the screen, position is set with FLTO. FREL can be used to make it stay in one position relative to another agent.
64 - Collides with the walls between rooms depending on its PERM.
128 - The agent is affected by gravity, air resistance and friction, these are set by ACCG, AERO and FRIC. Agents without this flag only move when thrown.
256 - The agent, and its contents if it's a vehicle, cannot be seen on cameras or on images created with SNAP.
512 - Vehicle only: Creatures can only see and interact with agents in the cabin if this flag is used.

Function

Syntax: ATTR

Returns the ATTR bitmap of TARG, as detailed above.

Examples

Make HOTS mouse-carryable, and make it suffer collisions and physics:

TARG HOTS
ATTR 194

Send the attribute bitmap of HOTS to the output stream:

TARG HOTS
OUTV ATTR

Prevent any agents from suffering physics:

ENUM 0 0 0
  SETV va00 ATTR
  ANDV va00 128
  DOIF va00 eq 128
    SETV va00 ATTR
    SUBV va00 128
    ATTR va00
  ENDI
NEXT

See also

External links