sourcemod/plugins/include/entity.inc
Scott Ehlert a1009aed38 Updated license headers on virtually all files with extremely minor changes in the name of some sort of strange consistency.
All plugin and include file headers also have been changed to say about GPL3 instead of GPL2.

(This day shall henceforth be known as the Eighty Column Massacre of '07)

--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%401336
2007-08-15 06:19:30 +00:00

739 lines
21 KiB
SourcePawn

/**
* vim: set ts=4 :
* =============================================================================
* SourceMod (C)2004-2007 AlliedModders LLC. All rights reserved.
* =============================================================================
*
* This file is part of the SourceMod/SourcePawn SDK.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License, version 3.0, as published by the
* Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, AlliedModders LLC gives you permission to link the
* code of this program (as well as its derivative works) to "Half-Life 2," the
* "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
* by the Valve Corporation. You must obey the GNU General Public License in
* all respects for all other code used. Additionally, AlliedModders LLC grants
* this exception to all derivative works. AlliedModders LLC defines further
* exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
* or <http://www.sourcemod.net/license.php>.
*
* Version: $Id$
*/
#if defined _entity_included
#endinput
#endif
#define _entity_included
/**
* Property types for entities.
*/
enum PropType
{
Prop_Send = 0, /**< This property is networked. */
Prop_Data = 1, /**< This property is for saved game files. */
};
/**
* @section For more information on these, see the HL2SDK (public/edict.h)
*/
#define FL_EDICT_CHANGED (1<<0) /**< Game DLL sets this when the entity state changes
Mutually exclusive with FL_EDICT_PARTIAL_CHANGE. */
#define FL_EDICT_FREE (1<<1) /**< this edict if free for reuse */
#define FL_EDICT_FULL (1<<2) /**< this is a full server entity */
#define FL_EDICT_FULLCHECK (0<<0) /**< call ShouldTransmit() each time, this is a fake flag */
#define FL_EDICT_ALWAYS (1<<3) /**< always transmit this entity */
#define FL_EDICT_DONTSEND (1<<4) /**< don't transmit this entity */
#define FL_EDICT_PVSCHECK (1<<5) /**< always transmit entity, but cull against PVS */
#define FL_EDICT_PENDING_DORMANT_CHECK (1<<6)
#define FL_EDICT_DIRTY_PVS_INFORMATION (1<<7)
#define FL_FULL_EDICT_CHANGED (1<<8)
/**
* @endsection
*/
/**
* Returns the maximum number of entities.
*
* @return Maximum number of entities.
*/
native GetMaxEntities();
/**
* Returns the number of entities in the server.
*
* @return Number of entities in the server.
*/
native GetEntityCount();
/**
* Returns whether or not an entity is valid. Returns false
* if there is no matching CBaseEntity for this edict index.
*
* @param edict Index of the entity/edict.
* @return True if valid, false otherwise.
*/
native bool:IsValidEntity(edict);
/**
* Returns whether or not an edict index is valid.
*
* @param edict Index of the edict.
* @return True if valid, false otherwise.
*/
native bool:IsValidEdict(edict);
/**
* Returns whether or not an entity is a valid networkable edict.
*
* @param edict Index of the edict.
* @return True if networkable, false if invalid or not networkable.
*/
native bool:IsEntNetworkable(edict);
/**
* Creates a new edict (the basis of a networkable entity)
*
* @return Index of the edict, 0 on failure.
*/
native CreateEdict();
/**
* Removes an edict from the world.
*
* @param edict Index of the edict.
* @noreturn
* @error Invalid edict index.
*/
native RemoveEdict(edict);
/**
* Returns the flags on an edict. These are not the same as entity flags.
*
* @param edict Index of the entity.
* @return Edict flags.
* @error Invalid edict index.
*/
native GetEdictFlags(edict);
/**
* Sets the flags on an edict. These are not the same as entity flags.
*
* @param edict Index of the entity.
* @param flags Flags to set.
* @noreturn
* @error Invalid edict index.
*/
native SetEdictFlags(edict, flags);
/**
* Retrieves an edict classname.
*
* @param edict Index of the entity.
* @param clsname Buffer to store the classname.
* @param maxlength Maximum length of the buffer.
* @return True on success, false if there is no classname set.
*/
native bool:GetEdictClassname(edict, String:clsname[], maxlength);
/**
* Retrieves an entity's networkable serverclass name.
* This is not the same as the classname and is used for networkable state changes.
*
* @param edict Index of the entity.
* @param clsname Buffer to store the serverclass name.
* @param maxlength Maximum lnegth of the buffer.
* @return True on success, false if the edict is not networkable.
* @error Invalid edict index.
*/
native bool:GetEntityNetClass(edict, String:clsname[], maxlength);
/**
* @section Entity offset functions
*
* Offsets should be specified in byte distance from the CBaseEntity
* structure, not short (double byte) or integer (four byte) multiples.
* It is somewhat common practice to use offsets aligned to their final
* type, and thus make sure you are not falling to this error in SourceMod.
* For example, if your "integer-aligned" offset was 119, your byte-aligned
* offset is 119*4, or 476.
* Specifying incorrect offsets or the incorrect data type for an offset
* can have fatal consequences. If you are hardcoding offsets, and the
* layout of CBaseEntity does not match, you can easily crash the server.
*
* The reasonable bounds for offsets is greater than or equal to 0 and
* below 32768. Offsets out of these bounds will throw an error. However,
* this does not represent any real range, it is simply a sanity check for
* illegal values. Any range outside of the CBaseEntity structure's private
* size will cause undefined behaviour or even crash.
*/
/**
* Marks an entity as state changed. This can be useful if you set an offset
* and wish for it to be immediately changed over the network. By default this
* is not done for offset setting functions.
*
* @param edict Index to the edict.
* @param offset Offset to mark as changed. If 0,
* the entire edict is marked as changed.
* @noreturn
* @error Invalid entity or offset out of bounds.
*/
native ChangeEdictState(edict, offset = 0);
/**
* Peeks into an entity's object data and retrieves the integer value at
* the given offset.
*
* @param entity Edict index.
* @param offset Offset to use.
* @param size Number of bytes to read (valid values are 1, 2, or 4).
* @return Value at the given memory location.
* @error Invalid entity or offset out of reasonable bounds.
*/
native GetEntData(entity, offset, size=4);
/**
* Peeks into an entity's object data and sets the integer value at
* the given offset.
*
* @param entity Edict index.
* @param offset Offset to use.
* @param size Number of bytes to write (valid values are 1, 2, or 4).
* @param changeState If true, change will be sent over the network.
* @return Value at the given memory location.
* @error Invalid entity or offset out of reasonable bounds.
* @noreturn
*/
native SetEntData(entity, offset, value, size=4, bool:changeState=false);
/**
* Peeks into an entity's object data and retrieves the float value at
* the given offset.
*
* @param entity Edict index.
* @param offset Offset to use.
* @return Value at the given memory location.
* @error Invalid entity or offset out of reasonable bounds.
*/
native Float:GetEntDataFloat(entity, offset);
/**
* Peeks into an entity's object data and sets the integer value at
* the given offset.
*
* @param entity Edict index.
* @param offset Offset to use.
* @param changeState If true, change will be sent over the network.
* @return Value at the given memory location.
* @error Invalid entity or offset out of reasonable bounds.
* @noreturn
*/
native SetEntDataFloat(entity, offset, Float:value, bool:changeState=false);
/**
* Peeks into an entity's object data and retrieves the entity handle
* info at the given offset.
*
* @param entity Edict index.
* @param offset Offset to use.
* @return Entity index at the given location, or 0 if none.
* @error Invalid entity or offset out of reasonable bounds.
*/
native GetEntDataEnt(entity, offset);
/**
* Peeks into an entity's object data and sets the entity handle info
* at the given offset.
*
* @param entity Edict index.
* @param offset Offset to use.
* @param other Entity index to set, or 0 to clear.
* @param changeState If true, change will be sent over the network.
* @noreturn
* @error Invalid entity or offset out of reasonable bounds.
*/
native SetEntDataEnt(entity, offset, other, bool:changeState=false);
/**
* Peeks into an entity's object data and retrieves the vector at the
* given offset.
* @note Both a Vector and a QAngle are three floats. This is a
* convenience function and will work with both types.
*
* @param entity Edict index.
* @param offset Offset to use.
* @param vec Vector buffer to store data in.
* @noreturn
* @error Invalid entity or offset out of reasonable bounds.
*/
native GetEntDataVector(entity, offset, Float:vec[3]);
/**
* Peeks into an entity's object data and sets the vector at the given
* offset.
* @note Both a Vector and a QAngle are three floats. This is a
* convenience function and will work with both types.
*
* @param entity Edict index.
* @param offset Offset to use.
* @param vec Vector to set.
* @param changeState If true, change will be sent over the network.
* @noreturn
* @error Invalid entity or offset out of reasonable bounds.
*/
native SetEntDataVector(entity, offset, const Float:vec[3], bool:changeState=false);
/**
* Peeks into an entity's object data and retrieves the string at
* the given offset.
*
* @param entity Edict index.
* @param offset Offset to use.
* @param buffer Destination string buffer.
* @param maxlen Maximum length of output string buffer.
* @return Number of non-null bytes written.
* @error Invalid entity or offset out of reasonable bounds.
*/
native GetEntDataString(entity, offset, String:buffer[], maxlen);
/**
* Peeks into an entity's object data and sets the string at
* the given offset.
*
* @param entity Edict index.
* @param offset Offset to use.
* @param buffer String to set.
* @param maxlen Maximum length of bytes to write.
* @param changeState If true, change will be sent over the network.
* @return Number of non-null bytes written.
* @error Invalid entity or offset out of reasonable bounds.
*/
native SetEntDataString(entity, offset, const String:buffer[], maxlen, bool:changeState=false);
/**
* @endsection
*/
/**
* Given a ServerClass name, finds a networkable send property offset.
* This information is cached for future calls.
*
* @param cls Classname.
* @param prop Property name.
* @return An offset, or -1 on failure.
*/
native FindSendPropOffs(const String:cls[], const String:prop[]);
/**
* Given an entity, finds a datamap property offset.
* This information is cached for future calls.
*
* @param entity Entity index.
* @param prop Property name.
* @return An offset, or -1 on failure.
*/
native FindDataMapOffs(entity, const String:prop[]);
/**
* Wrapper function for finding a send property for a particular entity.
*
* @param ent Entity index.
* @param prop Property name.
* @return An offset, or -1 on failure.
*/
stock GetEntSendPropOffs(ent, const String:prop[])
{
decl String:cls[64];
if (!GetEntityNetClass(ent, cls, sizeof(cls)))
{
return -1;
}
return FindSendPropOffs(cls, prop);
}
/**
* Gets a network property as an integer; wrapper around GetEntData().
*
* @param entity Edict index.
* @param type Property type.
* @param prop Property to use.
* @param size Number of bytes to read (valid values are 1, 2, or 4).
* @return Value at the given property offset.
* @error Invalid entity or property not found.
*/
stock GetEntProp(entity, PropType:type, const String:prop[], size=4)
{
new offs;
switch (type)
{
case Prop_Send:
{
offs = GetEntSendPropOffs(entity, prop);
}
case Prop_Data:
{
offs = FindDataMapOffs(entity, prop);
}
default:
{
ThrowError("Invalid Property type %d", type);
}
}
if (offs == -1)
{
ThrowError("Property \"%s\" not found for entity %d", prop, entity);
}
return GetEntData(entity, offs, size);
}
/**
* Sets a network property as an integer; wrapper around GetEntData().
*
* @param entity Edict index.
* @param type Property type.
* @param prop Property to use.
* @param size Number of bytes to write (valid values are 1, 2, or 4).
* @error Invalid entity or offset out of reasonable bounds.
* @noreturn
*/
stock SetEntProp(entity, PropType:type, const String:prop[], value, size=4)
{
new offs;
switch (type)
{
case Prop_Send:
{
offs = GetEntSendPropOffs(entity, prop);
}
case Prop_Data:
{
offs = FindDataMapOffs(entity, prop);
}
default:
{
ThrowError("Invalid Property type %d", type);
}
}
if (offs == -1)
{
ThrowError("Property \"%s\" not found for entity %d", prop, entity);
}
return SetEntData(entity, offs, value, size, true);
}
/**
* Gets a network property as a float; wrapper around GetEntDataFloat().
*
* @param entity Edict index.
* @param type Property type.
* @param prop Property to use.
* @return Value at the given property offset.
* @error Invalid entity or offset out of reasonable bounds.
*/
stock Float:GetEntPropFloat(entity, PropType:type, const String:prop[])
{
new offs;
switch (type)
{
case Prop_Send:
{
offs = GetEntSendPropOffs(entity, prop);
}
case Prop_Data:
{
offs = FindDataMapOffs(entity, prop);
}
default:
{
ThrowError("Invalid Property type %d", type);
}
}
if (offs == -1)
{
ThrowError("Property \"%s\" not found for entity %d", prop, entity);
}
return GetEntDataFloat(entity, offs);
}
/**
* Sets a network property as a float; wrapper around SetEntDataFloat().
*
* @param entity Edict index.
* @param type Property type.
* @param prop Property to use.
* @param value Value to set.
* @noreturn
* @error Invalid entity or offset out of reasonable bounds.
*/
stock SetEntPropFloat(entity, PropType:type, const String:prop[], Float:value)
{
new offs;
switch (type)
{
case Prop_Send:
{
offs = GetEntSendPropOffs(entity, prop);
}
case Prop_Data:
{
offs = FindDataMapOffs(entity, prop);
}
default:
{
ThrowError("Invalid Property type %d", type);
}
}
if (offs == -1)
{
ThrowError("Property \"%s\" not found for entity %d", prop, entity);
}
return SetEntDataFloat(entity, offs, value, true);
}
/**
* Gets a network property as a handle entity; wrapper around GetEntDataEnt().
*
* @param entity Edict index.
* @param type Property type.
* @param prop Property to use.
* @return Entity index at the given property, or 0 if none.
* @error Invalid entity or offset out of reasonable bounds.
*/
stock GetEntPropEnt(entity, PropType:type, const String:prop[])
{
new offs;
switch (type)
{
case Prop_Send:
{
offs = GetEntSendPropOffs(entity, prop);
}
case Prop_Data:
{
offs = FindDataMapOffs(entity, prop);
}
default:
{
ThrowError("Invalid Property type %d", type);
}
}
if (offs == -1)
{
ThrowError("Property \"%s\" not found for entity %d", prop, entity);
}
return GetEntDataEnt(entity, offs);
}
/**
* Sets a network property as a handle entity; wrapper around SetEntDataEnt().
*
* @param entity Edict index.
* @param type Property type.
* @param prop Property to use.
* @param other Entity index to set, or 0 to unset.
* @noreturn
* @error Invalid entity or offset out of reasonable bounds.
*/
stock SetEntPropEnt(entity, PropType:type, const String:prop[], other)
{
new offs;
switch (type)
{
case Prop_Send:
{
offs = GetEntSendPropOffs(entity, prop);
}
case Prop_Data:
{
offs = FindDataMapOffs(entity, prop);
}
default:
{
ThrowError("Invalid Property type %d", type);
}
}
if (offs == -1)
{
ThrowError("Property \"%s\" not found for entity %d", prop, entity);
}
return SetEntDataEnt(entity, offs, other, true);
}
/**
* Gets a network property as a vector; wrapper around GetEntDataVector().
* @note Both a Vector and a QAngle are three floats. This is a
* convenience function and will work with both types.
*
* @param entity Edict index.
* @param type Property type.
* @param prop Property to use.
* @param vec Vector buffer to store data in.
* @noreturn
* @error Invalid entity or offset out of reasonable bounds.
*/
stock GetEntPropVector(entity, PropType:type, const String:prop[], Float:vec[3])
{
new offs;
switch (type)
{
case Prop_Send:
{
offs = GetEntSendPropOffs(entity, prop);
}
case Prop_Data:
{
offs = FindDataMapOffs(entity, prop);
}
default:
{
ThrowError("Invalid Property type %d", type);
}
}
if (offs == -1)
{
ThrowError("Property \"%s\" not found for entity %d", prop, entity);
}
return GetEntDataVector(entity, offs, vec);
}
/**
* Sets a network property as a vector; wrapper around SetEntDataVector().
* @note Both a Vector and a QAngle are three floats. This is a
* convenience function and will work with both types.
*
* @param entity Edict index.
* @param type Property type.
* @param prop Property to use.
* @param vec Vector to set.
* @noreturn
* @error Invalid entity or offset out of reasonable bounds.
*/
stock SetEntPropVector(entity, PropType:type, const String:prop[], const Float:vec[3])
{
new offs;
switch (type)
{
case Prop_Send:
{
offs = GetEntSendPropOffs(entity, prop);
}
case Prop_Data:
{
offs = FindDataMapOffs(entity, prop);
}
default:
{
ThrowError("Invalid Property type %d", type);
}
}
if (offs == -1)
{
ThrowError("Property \"%s\" not found for entity %d", prop, entity);
}
return SetEntDataVector(entity, offs, vec, true);
}
/**
* Gets a network property as a string.
*
* @param entity Edict index.
* @param type Property type.
* @param prop Property to use.
* @param buffer Destination string buffer.
* @param maxlen Maximum length of output string buffer.
* @return Number of non-null bytes written.
* @error Invalid entity, offset out of reasonable bounds, or property is not a valid string.
*/
native GetEntPropString(entity, PropType:type, const String:prop[], String:buffer[], maxlen);
/**
* Sets a network property as a string.
*
* @param entity Edict index.
* @param type Property type.
* @param prop Property to use.
* @param buffer String to set.
* @return Number of non-null bytes written.
* @error Invalid entity, offset out of reasonable bounds, or property is not a valid string.
*/
native SetEntPropString(entity, PropType:type, const String:prop[], const String:buffer[]);
/**
* Copies an array of cells from an entity at a given offset.
*
* @param entity Entity index.
* @param offset Offset to use.
* @param array Array to read into.
* @param arraySize Number of values to read.
* @param dataSize Size of each value in bytes (1, 2, or 4).
* @noreturn
* @error Invalid entity or offset out of reasonable bounds.
*/
stock GetEntDataArray(entity, offset, array[], arraySize, dataSize=4)
{
for (new i=0; i<arraySize; i++)
{
array[i] = GetEntData(entity, offset + i*dataSize, dataSize)
}
}
/**
* Copies an array of cells to an entity at a given offset.
*
* @param entity Entity index.
* @param offset Offset to use.
* @param array Array of values to copy.
* @param arraySize Number of values to copy.
* @param dataSize Size of each value in bytes (1, 2, or 4).
* @param changeState True to set the network state as changed; false otherwise.
* @noreturn
* @error Invalid entity or offset out of reasonable bounds.
*/
stock SetEntDataArray(entity, offset, const array[], arraySize, dataSize=4, bool:changeState=false)
{
for (new i=0; i<arraySize; i++)
{
SetEntData(entity, offset + i*dataSize, array[i], dataSize, changeState);
}
}