Use: Difference between revisions
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All entities have a '''Use''' [[input]], though many do nothing in response to it. There are four ways to trigger it: | All entities have a '''Use''' [[input]], though many do nothing in response to it. There are four ways to trigger it: | ||
# A player looking at the entity and invoking the <code>+use</code> command | # A player looking at the entity and invoking the <code>+use</code> command (typically by pressing their '''e''' key) | ||
# An entity firing it via an [[output]] | # An entity firing it via an [[output]] | ||
# An entity firing an output that does not specify an input on the target entity | # An entity firing an output that does not specify an input on the target entity | ||
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== Programming == | == Programming == | ||
Although there is always a Use input, the actual Use function of an entity starts null. It can be assigned at any time with <code>SetUse( void *SomeFunc([[CBaseEntity]] *pActivator, CBaseEntity *pCaller, USE_TYPE useType, [[float]] value) )</code>. | Although there is always a Use input, the actual Use function of an entity starts null. It can be assigned at any time with <code>SetUse( void *SomeFunc([[CBaseEntity]] *pActivator, CBaseEntity *pCaller, USE_TYPE useType, [[float]] value) )</code>. | ||
Revision as of 17:05, 28 May 2018
All entities have a Use input, though many do nothing in response to it. There are four ways to trigger it:
- A player looking at the entity and invoking the
+usecommand (typically by pressing their e key) - An entity firing it via an output
- An entity firing an output that does not specify an input on the target entity
- An entity directly calling the C++ function
Use typically performs the action players most expect when interacting with the entity (e.g. opening/closing a door, picking up a physics object).
Programming
Although there is always a Use input, the actual Use function of an entity starts null. It can be assigned at any time with SetUse( void *SomeFunc(CBaseEntity *pActivator, CBaseEntity *pCaller, USE_TYPE useType, float value) ).
It doesn't appear possible to specify USE_TYPE or value through the I/O system.