Calling "is_valid" checks whether the goal actually can be fulfilled.
If it can't be, False is returned.
By default all Goals return True unless a "validity" function is supplied
in the constructor.
For now we only use it for checking whether movement goals can be reached.
If the character wants to travel too far, we shouldn't try to map the whole
path straight away. Instead we'll cut down on the lenght, and increase the
acceptable radius.
This works since the AI will issue a new destination on its next Tick.
Authoring clients can send a Think op, wrapping a Get op with a "path"
attribute to get information about the path. The mind code will then
send back a list of points for the path.
This goal will move a character close to something, and then keep the
character within a certain distance of this thing.
This is useful when you want the character to get close to something,
but then search for something else within the vicinity.
This makes the NPC wander aimlessly within a specified series of
location. This is often more suitable than "wander", as that goal will
make the NPC wander over the whole map, which often isn't what you want.
The NPC will now wander randomly. However, this isn't completely
natural. The change in direction is too erratic. And the goal should be
expanded to stay within a certain area.
* rulesets/basic/mind/goals/common/common.py,
rulesets/basic/mind/goals/common/move.py,
rulesets/basic/mind/goals/humanoid/build_home.py,
rulesets/basic/mind/goals/humanoid/fire.py,
rulesets/basic/mind/goals/humanoid/mason.py,
rulesets/basic/mind/goals/humanoid/transaction.py:
Clean up the way goals are imported so it makes more sense,
and doxygen has an easier time with it.
* rulesets/Python_API.cpp: Remove the server_python flag used to
allow scripts to run unmodified on the obsolete python prototype.
* rulesets/basic/mind/NPCMind.py,
rulesets/basic/mind/goals/animal/herd.py,
rulesets/basic/mind/goals/common/common.py,
rulesets/basic/mind/goals/common/move.py,
rulesets/mason/world/objects/buildings/House.py: Remove support
for running these scripts on the obsolete python prototype.
* rulesets/basic/mind/goals/common/misc_goal.py,
rulesets/basic/mind/goals/common/move.py,
rulesets/basic/mind/goals/humanoid/construction.py,
rulesets/mason/define_world.py: Fix most goals so they no longer
require a reference to the owning mind object on initialisation,
meaning they are now more stateless.
* rulesets/basic/mind/goals/common/misc_goal.py,
rulesets/basic/mind/goals/common/move.py,
rulesets/basic/mind/goals/humanoid/construction.py:
Re-write goals relating to gathering things off the ground
to be clearer, more efficient, and to deal with lists of types.
* rulesets/mason/define_world.py: Use warrior test to test gathering
lists of types.
* Makefile.am: Remove GNU echo isms.
* rulesets/basic/mind/goals/common/move.py: Modify the pick_up_focus()
goal so it clears the focus. gather() now gathers things
indefinitely.
* rulesets/mason/define_world.py: Add a test script for warriors to
gather stuff.
* rulesets/Python_API.cpp: Change the entity_new constructor used
by define world scripts so that it takes an optional "pos" argument
rather than the long obsolete "xyz".
* rulesets/mason/define_world.py, rulesets/werewolf/define_world.py:
Modify the most relevant define_world scripts to use the changed API.
* rulesets/basic/mind/goals/common/move.py: Remove a long obsolete
commented out debug line.
* rulesets/BaseMind.cpp, rulesets/MemMap.cpp, rulesets/MemMap.h:
Remove commented out lookId code. Re-write findByLocation to
require a type as well, and use a more efficient search to find
the entities requested.
* rulesets/Py_Map.cpp: Re-write find_by_location wrapper to handle
the extra type argument.
* rulesets/basic/mind/Memory.py: Re-write recall_place so that
type and radius are now required, and make sure all types listed
are checked for.
* rulesets/basic/mind/goals/common/move.py: Check if recall_place
has returned anything at all.
* client/Py_CreatorClient.cpp, rulesets/Py_Map.cpp,
rulesets/Py_Operation.cpp, rulesets/Py_Oplist.cpp,
rulesets/Py_Point3D.cpp, rulesets/Py_Vector3D.cpp,
rulesets/Py_WorldTime.cpp, rulesets/Python_API.cpp:
Convert functions that take a single argument to use METH_O
and avoid calling PyArg_ParseTuple.
* rulesets/Py_Point3D.cpp, rulesets/Py_Vector3D.cpp,
rulesets/basic/mind/goals/common/move.py: Rename
unit_vector_to_another_vector to unit_vector_to.
* common/const.h: Add a second const for the non-squared default
box size for visibility calculations.
* modules/Location.cpp: Initialise cached box size members with
defaults from consts.
* rulesets/basic/mind/goals/common/move.py: Don't remove focus
knowledge about item just because it has been picked up. This
fixes eating acorns.
* rulesets/basic/mind/goals/common/misc_goal.py: Remove focus knowledge
when something is eaten.
* rulesets/Py_BBox.cpp, rulesets/Py_Optime.cpp,
rulesets/Py_Statistics.cpp, rulesets/Py_Thing.cpp: Ensure that
setattr returns an exception if the attribute is not a valid one.
* rulesets/Py_Map.cpp, rulesets/Py_Point3D.cpp,
rulesets/Py_Quaternion.cpp, rulesets/Py_World.cpp,
rulesets/Py_WorldTime.cpp: Remove setattr, as no attributes can
be set on this type.
* rulesets/Py_Mind.cpp, rulesets/Py_Oplist.cpp,
rulesets/Py_Vector3D.cpp: Clean up type structure.
* rulesets/basic/mind/goals/common/move.py: Remove attempt
to set "rotation" attribute on location, as its obsolete
and pointless.
* rulesets/basic/mind/goals/common/common.py,
rulesets/basic/mind/goals/common/misc_goal.py,
rulesets/basic/mind/goals/common/move.py,
rulesets/basic/mind/goals/humanoid/build_home.py,
rulesets/basic/world/probability.py,
rulesets/basic/world/objects/plants/Tree.py,
rulesets/mason/define_world.py, rulesets/mason/mind/SkelMind.py,
rulesets/mason/world/objects/Weather.py,
rulesets/mason/world/objects/animals/Deer.py,
rulesets/mason/world/objects/animals/Pig.py,
rulesets/mason/world/objects/outdoor/Gravestone.py,
rulesets/mason/world/objects/plants/seeds/Seed.py,
rulesets/mason/world/objects/undead/Skeleton.py,
rulesets/werewolf/define_world.py:
Switch to importing random and fall back to deprecated whrandom
on older python versions.
* rulesets/basic/mind/goals/common/misc_goal.py: More changes
to make goals work with new spot_something.
* rulesets/basic/mind/goals/common/move.py: Modify hunt pursuit goal
to fit with spot_something.
