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blender-archive/source/blender/blenkernel/BKE_boids.h
Janne Karhu b4353a8443 Initial code for boids v2
Too many new features to list! But here are the biggies:
- Boids can move on air and/or land, or climb a goal object.
- Proper interaction with collision objects.
	* Closest collision object in negative z direction is considered as ground.
	* Other collision objects are obstacles and boids collide with them.
- Boid behavior rules are now added to a dynamic list.
	* Many new rules and many still not implemented.
	* Different rule evaluation modes (fuzzy, random, average).
- Only particle systems defined by per system "boid relations" are considered for simulation of that system.
	* This is in addition to the boids own system of course.
	* Relations define other systems as "neutral", "friend" or "enemy".
- All effectors now effect boid physics, not boid brains.
	* This allows forcing boids somewhere.
	* Exception to this is new "boid" effector, which defines boid predators (positive strength) and goals (negative strength).
	
Known issue:
- Boid health isn't yet stored in pointcache so simulations with "fight" rule are not be read from cache properly.
- Object/Group visualization object's animation is not played in "particle time". This is definately the wanted behavior, but isn't possible with the current state of dupliobject code.

Other new features:
- Particle systems can now be named separately from particle settings.
	* Default name for particle settings is now "ParticleSettings" instead of "PSys"
- Per particle system list of particle effector weights.
	* Enables different effection strengths for particles from different particle systems with without messing around with effector group setting.

Other code changes:
- KDTree now supports range search as it's needed for new boids.
- "Keyed particle targets" renamed as general "particle targets", as they're needed for boids too. (this might break some files saved with new keyed particles)

Bug fixes:
- Object & group visualizations didn't work.
- Interpolating pointcache didn't do rotation.
2009-07-20 23:52:53 +00:00

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/* BKE_particle.h
*
*
* $Id$
*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* 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, write to the Free Software Foundation,
* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The Original Code is Copyright (C) 2009 by Janne Karhu.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL LICENSE BLOCK *****
*/
#ifndef BKE_BOIDS_H
#define BKE_BOIDS_H
#include "DNA_boid_types.h"
typedef struct BoidBrainData {
Scene *scene;
struct Object *ob;
struct ParticleSystem *psys;
struct ParticleSettings *part;
float timestep, cfra, dfra;
float wanted_co[3], wanted_speed;
/* Goal stuff */
struct Object *goal_ob;
float goal_co[3];
float goal_nor[3];
float goal_priority;
} BoidBrainData;
void boids_precalc_rules(struct ParticleSettings *part, float cfra);
void boid_brain(BoidBrainData *bbd, int p, struct ParticleData *pa);
void boid_body(BoidBrainData *bbd, struct ParticleData *pa);
void boid_default_settings(BoidSettings *boids);
BoidRule *boid_new_rule(int type);
BoidState *boid_new_state(BoidSettings *boids);
BoidState *boid_duplicate_state(BoidSettings *boids, BoidState *state);
void boid_free_settings(BoidSettings *boids);
BoidSettings *boid_copy_settings(BoidSettings *boids);
BoidState *boid_get_current_state(BoidSettings *boids);
#endif