Commit Graph

28 Commits

Author SHA1 Message Date
Campbell Barton
b8a71efeba style cleanup: follow style guide for/with/if spacing 2012-03-24 07:52:14 +00:00
Campbell Barton
ea13ec1699 Spelling Cleanup 2012-03-01 12:20:18 +00:00
Campbell Barton
4a04f72069 remove $Id: tags after discussion on the mailign list: http://markmail.org/message/fp7ozcywxum3ar7n 2011-10-23 17:52:20 +00:00
Nathan Letwory
344caea0b3 doxygen: gameengine/GameLogic tagged. 2011-02-25 13:32:11 +00:00
Nathan Letwory
5b607701a7 doxygen: prevent GPL license block from being parsed as doxygen comment. 2011-02-23 10:52:22 +00:00
Campbell Barton
0876fce009 rename and negate DISABLE_PYTHON --> WITH_PYTHON 2010-10-31 04:11:39 +00:00
Campbell Barton
8f1500da00 remove config.h references, was added for automake build system rev around 124-126 but isnt used by any build systems now. 2010-04-18 10:28:37 +00:00
Campbell Barton
081c1205a3 correct fsf address 2010-02-12 13:34:04 +00:00
Dalai Felinto
573be3e687 BGE: Removing OB prefix from object names - This will break scripts !!!! (also removing AC and ME :: internal changes only)
How it works now:
whenever you have to read/write object names you can do it without the prefix "OB". (it's not hard at all to fix scripts)

How it was before:
It was a mess :)
We had an inconsistent API where sometimes you had to input "OBname" and other "name" directly to assign object as data (usually in actuators).

Justification for the change:
Talking with Campbell we had since a while ago this feeling that this should be changed any time we were going to deprecate the API. So in order to deliver Blender 2.5beta0 with a more close-to-the-final API we decided that today was a good day to implement that.

Remaining issues:
1) VideoTexture uses IM or MA to identify the output material/texture. I haven't touched that, but it does look a bit off. (i.e. I didn't changed any MA, IM naming)
2) I didn't see the code of dynamic mesh. It may need to be edited as well.
2009-11-22 00:01:52 +00:00
Benoit Bolsee
b45ab480e0 BGE: dynamic loading patch commited. API and demo files available here: https://projects.blender.org/tracker/?func=detail&aid=19492&group_id=9&atid=127 2009-11-15 23:58:56 +00:00
Campbell Barton
98ee2a781d option to build the BGE without python, uses existing python check (cmake and scons)
when python is disabled videotextures are not built.
2009-09-29 21:42:40 +00:00
Campbell Barton
9a7ea9664e BGE PyAPI support for subclassing any BGE game type from python, scripters define extra functions on gameObjects.
Adding a UI to set the type on startup can be added easily.

# ----
class myPlayer(GameTypes.KX_GameObject):
  def die(self):
    # ... do stuff ...
    self.endObject()

# make an instance
player = myPlayer(gameOb) # gameOb is made invalid now.
player.die()

# ----

One limitation (which could also be an advantage), is making the subclass instance will return that subclass everywhere, you cant have 2 different subclasses of the same BGE data at once.
2009-06-29 12:06:46 +00:00
Brecht Van Lommel
c8b4cf9206 2.50:
svn merge https://svn.blender.org/svnroot/bf-blender/trunk/blender -r19820:HEAD

Notes:
* Game and sequencer RNA, and sequencer header are now out of date
  a bit after changes in trunk.
* I didn't know how to port these bugfixes, most likely they are
  not needed anymore.
  * Fix "duplicate strip" always increase the user count for ipo.
  * IPO pinning on sequencer strips was lost during Undo.
2009-06-08 20:08:19 +00:00
Benoit Bolsee
bc8f002a4c BGE state system improvement: the sensor with Level option enabled will trigger the controller of a newly activated state, even if the sensor is already connected to an active state; new isTriggered() python function to determine which sensor triggered the current controller.
Previously, this behaviour was available only for sensors
that were not connected to any active state, which was
forcing the game designer to duplicate sensors in some 
cases.
For example the Always sensors used to initialize the 
states needed to be duplicated for each state. With this
patch, a single Always sensor with Level option enabled
will suffice to initialize all the states. 
A Python controller can determine which sensor did trigger
with the new SCA_ISensor::isTriggered() function.

Notes:
- When a sensor with level option enabled is connected
  to multiple controllers, only those of newly activated
  states will be triggered. The controllers of already
  activated states will receive no trigger, unless the 
  sensor internal state toggled, in which case all the
  controllers are triggered as always.
- The old isPositive() function returns the internal
  state of the sensor, positive or negative; the new 
  isTriggered() function returns 1 only for sensors
  that generated an event in the current frame.
2008-08-23 11:54:27 +00:00
Benoit Bolsee
8a8a12ed84 BGE patch: logic optimization part 2: remove inactive sensors from logic manager.
With this patch, only sensors that are connected to 
active states are actually registered in the logic
manager. Inactive sensors won't take any CPU,
especially the Radar and Near sensors that use a
physical object for the detection: these objects
are removed from the physics engine.

To take advantage of this optimization patch, you
need to define very light idle state when the 
objects are inactive: make them transparent, suspend
the physics, keep few sensors active (e,g a message
sensor to wake up), etc.
2008-07-30 17:41:47 +00:00
Benoit Bolsee
c4116a7f8d BGE patch: support runtime duplication of groups. Adding an object with Dupligroup option set will cause the group to be instantiated. No special actuator is needed for this feature, just put dupligroup objects in inactive layers and add them dynamically 2008-07-26 11:00:21 +00:00
Benoit Bolsee
70d239ef7d BGE logic update: new servo control motion actuator, new distance constraint actuator, new orientation constraint actuator, new actuator sensor.
General
=======
- Removal of Damp option in motion actuator (replaced by
  Servo control motion).
- No PyDoc at present, will be added soon.

Generalization of the Lvl option
================================
A sensor with the Lvl option selected will always produce an 
event at the start of the game or when entering a state or at 
object creation. The event will be positive or negative 
depending of the sensor condition. A negative pulse makes
sense when used with a NAND controller: it will be converted
into an actuator activation.

Servo control motion
====================
A new variant of the motion actuator allows to control speed 
with force. The control if of type "PID" (Propotional, Integral, 
Derivate): the force is automatically adapted to achieve the 
target speed. All the parameters of the servo controller are
configurable. The result is a great variety of motion style: 
anysotropic friction, flying, sliding, pseudo Dloc...
This actuator should be used in preference to Dloc and LinV
as it produces more fluid movements and avoids the collision 
problem with Dloc.
LinV : target speed as (X,Y,Z) vector in local or world 
       coordinates (mostly useful in local coordinates).
Limit: the force can be limited along each axis (in the same
       coordinates of LinV). No limitation means that the force
       will grow as large as necessary to achieve the target 
       speed along that axis. Set a max value to limit the 
       accelaration along an axis (slow start) and set a min
       value (negative) to limit the brake force.
P:     Proportional coefficient of servo controller, don't set
       directly unless you know what you're doing.
I:     Integral coefficient of servo controller. Use low value
       (<0.1) for slow reaction (sliding), high values (>0.5)
       for hard control. The P coefficient will be automatically
       set to 60 times the I coefficient (a reasonable value).
D:     Derivate coefficient. Leave to 0 unless you know what
       you're doing. High values create instability. 

Notes: - This actuator works perfectly in zero friction 
         environment: the PID controller will simulate friction
         by applying force as needed.
       - This actuator is compatible with simple Drot motion
         actuator but not with LinV and Dloc motion.
       - (0,0,0) is a valid target speed.
       - All parameters are accessible through Python.

Distance constraint actuator
============================
A new variant of the constraint actuator allows to set the
distance and orientation relative to a surface. The controller
uses a ray to detect the surface (or any object) and adapt the
distance and orientation parallel to the surface.
Damp:  Time constant (in nb of frames) of distance and 
       orientation control.
Dist:  Select to enable distance control and set target 
       distance. The object will be position at the given
       distance of surface along the ray direction.
Direction: chose a local axis as the ray direction.
Range: length of ray. Objecgt within this distance will be 
       detected.
N    : Select to enable orientation control. The actuator will
       change the orientation and the location of the object 
       so that it is parallel to the surface at the vertical
       of the point of contact of the ray.  
M/P  : Select to enable material detection. Default is property
       detection.
Property/Material: name of property/material that the target of
       ray must have to be detected. If not set, property/
       material filter is disabled and any collisioning object
       within range will be detected.
PER  : Select to enable persistent operation. Normally the 
       actuator disables itself automatically if the ray does
       not reach a valid target. 
time : Maximum activation time of actuator. 
       0 : unlimited.
       >0: number of frames before automatic deactivation.  
rotDamp: Time constant (in nb of frame) of orientation control.
       0 : use Damp parameter.
       >0: use a different time constant for orientation.

Notes: - If neither N nor Dist options are set, the actuator
         does not change the position and orientation of the
         object; it works as a ray sensor.
       - The ray has no "X-ray" capability: if the first object
         hit does not have the required property/material, it
         returns no hit and the actuator disables itself unless
         PER option is enabled.
       - This actuator changes the position and orientation but
         not the speed of the object. This has an important 
         implication in a gravity environment: the gravity will
         cause the speed to increase although the object seems
         to stay still (it is repositioned at each frame).
         The gravity must be compensated in one way or another.
         the new servo control motion actuator is the simplest 
         way: set the target speed along the ray axis to 0
         and the servo control will automatically compensate 
         the gravity.
       - This actuator changes the orientation of the object 
         and will conflict with Drot motion unless it is 
         placed BEFORE the Drot motion actuator (the order of 
         actuator is important)
       - All parameters are accessible through Python.

Orientation constraint 
======================
A new variant of the constraint actuator allows to align an
object axis along a global direction.
Damp : Time constant (in nb of frames) of orientation control.
X,Y,Z: Global coordinates of reference direction. 
time : Maximum activation time of actuator. 
       0 : unlimited.
       >0: number of frames before automatic deactivation.  

Notes: - (X,Y,Z) = (0,0,0) is not a valid direction
       - This actuator changes the orientation of the object
         and will conflict with Drot motion unless it is placed
         BEFORE the Drot motion actuator (the order of 
         actuator is important).
       - This actuator doesn't change the location and speed. 
         It is compatible with gravity.
       - All parameters are accessible through Python.

Actuator sensor 
===============
This sensor detects the activation and deactivation of actuators 
of the same object. The sensor generates a positive pulse when 
the corresponding sensor is activated and a negative pulse when 
it is deactivated (the contrary if the Inv option is selected). 
This is mostly useful to chain actions and to detect the loss of 
contact of the distance motion actuator.

Notes: - Actuators are disabled at the start of the game; if you
         want to detect the On-Off transition of an actuator 
         after it has been activated at least once, unselect the
         Lvl and Inv options and use a NAND controller.
       - Some actuators deactivates themselves immediately after 
         being activated. The sensor detects this situation as 
         an On-Off transition.
       - The actuator name can be set through Python.
2008-07-04 08:14:50 +00:00
Benoit Bolsee
5372def2b0 BGE patch: add state engine support in the logic bricks.
This patch introduces a simple state engine system with the logic bricks. This system features full
backward compatibility, multiple active states, multiple state transitions, automatic disabling of 
sensor and actuators, full GUI support and selective display of sensors and actuators. 
Note: Python API is available but not documented yet. It will be added asap.

State internals
===============
The state system is object based. The current state mask is stored in the object as a 32 bit value; 
each bit set in the mask is an active state. The controllers have a state mask too but only one bit
can be set: a controller belongs to a single state. The game engine will only execute controllers 
that belong to active states. Sensors and actuators don't have a state mask but are effectively 
attached to states via their links to the controllers. Sensors and actuators can be connected to more
than one state. When a controller becomes inactive because of a state change, its links to sensors 
and actuators are temporarily broken (until the state becomes active again). If an actuator gets isolated, 
i.e all the links to controllers are broken, it is automatically disabled. If a sensor gets isolated, 
the game engine will stop calling it to save CPU. It will also reset the sensor internal state so that
it can react as if the game just started when it gets reconnected to an active controller. For example,
an Always sensor in no pulse mode that is connected to a single state (i.e connected to one or more 
controllers of a single state) will generate a pulse each time the state becomes active. This feature is 
not available on all sensors, see the notes below.

GUI
===
This system system is fully configurable through the GUI: the object state mask is visible under the
object bar in the controller's colum as an array of buttons just like the 3D view layer mask.
Click on a state bit to only display the controllers of that state. You can select more than one state
with SHIFT-click. The All button sets all the bits so that you can see all the controllers of the object. 
The Ini button sets the state mask back to the object default state. You can change the default state 
of object by first selecting the desired state mask and storing using the menu under the State button. 
If you define a default state mask, it will be loaded into the object state make when you load the blend
file or when you run the game under the blenderplayer. However, when you run the game under Blender, 
the current selected state mask will be used as the startup state for the object. This allows you to test
specific state during the game design.

The controller display the state they belong to with a new button in the controller header. When you add
a new controller, it is added by default in the lowest enabled state. You can change the controller state 
by clicking on the button and selecting another state. If more than one state is enabled in the object
state mask, controllers are grouped by state for more readibility. 

The new Sta button in the sensor and actuator column header allows you to display only the sensors and 
actuators that are linked to visible controllers.

A new state actuator is available to modify the state during the game. It defines a bit mask and 
the operation to apply on the current object state mask:

Cpy: the bit mask is copied to the object state mask.
Add: the bits that set in the bit mask will be turned on in the object state mask.
Sub: the bits that set in the bit mask will be turned off in the object state mask.
Inv: the bits that set in the bit mask will be inverted in the objecyy state mask.

Notes
=====
- Although states have no name, a simply convention consists in using the name of the first controller 
  of the state as the state name. The GUI will support that convention by displaying as a hint the name
  of the first controller of the state when you move the mouse over a state bit of the object state mask
  or of the state actuator bit mask.
- Each object has a state mask and each object can have a state engine but if several objects are 
  part of a logical group, it is recommended to put the state engine only in the main object and to
  link the controllers of that object to the sensors and actuators of the different objects.
- When loading an old blend file, the state mask of all objects and controllers are initialized to 1 
  so that all the controllers belong to this single state. This ensures backward compatibility with 
  existing game.
- When the state actuator is activated at the same time as other actuators, these actuators are 
  guaranteed to execute before being eventually disabled due to the state change. This is useful for
  example to send a message or update a property at the time of changing the state.
- Sensors that depend on underlying resource won't reset fully when they are isolated. By the time they
  are acticated again, they will behave as follow:
  * keyboard sensor: keys already pressed won't be detected. The keyboard sensor is only sensitive 
    to new key press.
  * collision sensor: objects already colliding won't be detected. Only new collisions are 
    detected.
  * near and radar sensor: same as collision sensor.
2008-06-22 14:23:57 +00:00
Benoit Bolsee
9b9359120f BGE bug: fix a crash at game exit caused by inconsistent controller map after object deletion. The bug became apparent since the memory leaks have been fixed. 2008-04-24 21:26:39 +00:00
Chris Want
5d0a207ecb Patch from GSR that a) fixes a whole bunch of GPL/BL license
blocks that were previously missed; and b) greatly increase my
ohloh stats!
2008-04-16 22:40:48 +00:00
Benoit Bolsee
0db0f5734d Various mem leaks related to CValue reference count fixed 2008-03-01 19:46:50 +00:00
Erwin Coumans
2e6d576182 Sorry to break the cvs-closed status, so if you really need to make a new 2.40 build, just disable the game engine if it doesn't compile for a platform. Again, sorry if this breaks non-windows platforms, but I hope people help to get this amazing fix working for all platforms. Armature-fixing contribution from Snailrose. Also lots of cool things from Snailrose and Lagan.
Armatures are back
Split screen
Double sided lightning
Ambient lighting
Alpha test
Material IPO support (one per object atm)
Blender materials
GLSL shaders - Python access
Up to three texture samplers from the material panel ( 2D & Cube map )
Python access to a second set of uv coordinates

See http://www.elysiun.com/forum/viewtopic.php?t=58057
2006-01-06 03:46:54 +00:00
Kester Maddock
6c4ae1eb54 Patch: [ #2439 ] Makes objects react properly to deformations after a mesh replacement call.
from brian hayward (bthayward)

Detailed description:
 Currently, when an armature deformed object's mesh is replaced by the ReplaceMesh actuator, the new mesh fails to deform to the armature's movement.

 My patch fixes this by properly replacing the deform controller along with the mesh (when appropriete).

 For instance, if one had an animated character using any of the standard deformation techniques (armature, ipo, RVK, or AVK), that character's mesh would currently be prevented from changing mid-game. It could be replaced, but the new mesh would lack the controller which tells it how to deform. If one wanted to dynamiclly add a hat on top of the character's head, it would require storing a secondary prebuilt character (mesh, armature, logic, ect...) on another layer FOR EACH HAT the character could possibly wear, then swapping out the whole character when the hat change was desired. So if you had 4 possible hat/character combos, you would have 4 character meshes, 4 armatures, 4 sets of logic, and so on. I find this lack of flexibility to be unresonable.

 With my patch, one could accomplish the same thing mearly by making one version of the character in the main layer, and adding an invisible object atop the character's head (which is parented to the head bone). Then whenever it becomes desirable, one can replace the invisible object's mesh with the desirable hat's mesh, then make it visible. With my patch, the hat object would then continue to deform to the character's head regardless of which hat was currently being worn.

 *note 1*
 for armature/mesh deformations, the new mesh must have properly assigned vertex groups which match one or more of the bones of the target armature before the replaceMesh call is made. Otherwise the vertices won't react to the armature because they won't know how. (not sure if vertices can be scripted to change groups after the game has started)

 *note 2*
 The added processing time involved with replacing the object's deform controller is negligible.
2005-04-18 11:44:21 +00:00
Jean-Luc Peurière
c78e44cdc5 big warning hunt commit
lot of casts, added prototypes, missing includes and some true errors
2005-03-09 19:45:59 +00:00
Kester Maddock
7b2567924b Switch fixed time system. Logic updates should now happen at 30Hz, physics at 60Hz. (By default, use Python to set.) Some actuators still run at framerate (IPO, Action) for nice smooth animation, and an excuse to buy high end hardware.
Keyboard sensors can now hook escape key.  Ctrl-Break can be used from within blender if you've forgotten an end game actuator.

Fixed a stupid bug preventing some actuators working (like TrackTo).
2004-10-16 11:41:50 +00:00
Nathan Letwory
00291b5cf4 [GameEngine] Commit all Kester's changes made to the gameengine to restore 2.25 like physics.
[SCons] Build with Solid as default when enabling the gameengine in the build process
[SCons] Build solid and qhull from the extern directory and link statically against them

That was about it.

There are a few things that needs double checking:

* Makefiles
* Projectfiles
* All the other systems than Linux and Windows on which the build (with scons) has been successfully tested.
2004-03-22 22:02:18 +00:00
Kent Mein
209a2ede2c Last of the config.h mods...
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

added to these files.

Kent
--
mein@cs.umn.edu
2002-11-25 15:29:57 +00:00
Hans Lambermont
12315f4d0e Initial revision 2002-10-12 11:37:38 +00:00