/usr/include/crystalspace-2.0/imesh/emit.h is in libcrystalspace-dev 2.0+dfsg-1build1.
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Copyright (C) 2000 by Jorrit Tyberghein
Copyright (C) 2001 by W.C.A. Wijngaards
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __CS_IMESH_EMIT_H__
#define __CS_IMESH_EMIT_H__
/**\file
* Emitter particle mesh object
*/
#include "csutil/scf_interface.h"
class csColor;
class csVector3;
/**
* This interface is for objects that can generate 3d vectors, which
* are used for emitting.
*
* Main users of this interface:
* - iEmitState
*/
struct iEmitGen3D : public virtual iBase
{
SCF_INTERFACE(iEmitGen3D, 2, 0, 0);
/// get the 3d value, posibly using a given value.
virtual void GetValue(csVector3& value, csVector3 &given) = 0;
};
/**
* Fixed value emitter - returns a particular point value.
*
* Main creators of instances implementing this interface:
* - iEmitFactoryState::CreateFixed()
*
* Main users of this interface:
* - iEmitState
*/
struct iEmitFixed : public iEmitGen3D
{
SCF_INTERFACE(iEmitFixed, 2, 0, 0);
/// set the fixed value
virtual void SetValue(const csVector3& value) = 0;
};
/**
* Sphere value emitter - returns points in a sphere.
*
* Main creators of instances implementing this interface:
* - iEmitFactoryState::CreateSphere()
*
* Main users of this interface:
* - iEmitState
*/
struct iEmitSphere : public iEmitGen3D
{
SCF_INTERFACE(iEmitSphere, 2, 0, 0);
/// set content, center and min, max radius
virtual void SetContent(const csVector3& center, float min, float max) = 0;
/// get content
virtual void GetContent(csVector3& center, float& min, float& max) = 0;
};
/**
* Box value emitter - returns points in an (axis aligned) box.
*
* Main creators of instances implementing this interface:
* - iEmitFactoryState::CreateBox()
*
* Main users of this interface:
* - iEmitState
*/
struct iEmitBox : public iEmitGen3D
{
SCF_INTERFACE(iEmitBox, 2, 0, 0);
/// set content, min and max vector values
virtual void SetContent(const csVector3& min, const csVector3& max) = 0;
/// get content
virtual void GetContent(csVector3& min, csVector3& max) = 0;
};
/**
* Cone value emitter - returns points in a cone.
*
* Main creators of instances implementing this interface:
* - iEmitFactoryState::CreateCone()
*
* Main users of this interface:
* - iEmitState
*/
struct iEmitCone : public iEmitGen3D
{
SCF_INTERFACE(iEmitCone, 2, 0, 0);
/**
* Set content, origin, elevation, azimuth, aperture(opening),
* and distance min, distance max from the origin of the cone.
*/
virtual void SetContent(const csVector3& origin, float elevation,
float azimuth, float aperture, float min, float max) = 0;
/// get content
virtual void GetContent(csVector3& origin, float& elevation,
float& azimuth, float& aperture, float& min, float& max) = 0;
};
/**
* Mix value emitter - returns a weighted random mix of other emitters.
*
* Main creators of instances implementing this interface:
* - iEmitFactoryState::CreateMix()
*
* Main users of this interface:
* - iEmitState
*/
struct iEmitMix : public iEmitGen3D
{
SCF_INTERFACE(iEmitMix, 2, 0, 0);
/// add a weighted emitter to the mix
virtual void AddEmitter(float weight, iEmitGen3D* emit) = 0;
/**
* Removes an emitter from the mix given a zero based emitter number.
* Use GetEmitterCount() and GetContent() to enumerate through the mix
* and find the index of an emitter.
*/
virtual void RemoveEmitter(int num) = 0;
/// get the total weight in this mix
virtual float GetTotalWeight() = 0;
/// get the number of emitters in this mix
virtual int GetEmitterCount() = 0;
/**
* Adjust the weight of an emitter given a zero based emitter number
* Use GetEmitterCount() and GetContent() to enumerate through the mix
* and find the index of an emitter.
*/
virtual void AdjustEmitterWeight(int num,float weight) = 0;
/// get content, returns emitters and their weight by a number (0..number-1)
virtual void GetContent(int num, float& weight, iEmitGen3D*& emit) = 0;
};
/**
* Line value emitter - returns values on the line between start and end.
*
* Main creators of instances implementing this interface:
* - iEmitFactoryState::CreateLine()
*
* Main users of this interface:
* - iEmitState
*/
struct iEmitLine : public iEmitGen3D
{
SCF_INTERFACE(iEmitLine, 2, 0, 0);
/// set content, start and end vector values
virtual void SetContent(const csVector3& start, const csVector3& end) = 0;
/// get content
virtual void GetContent(csVector3& start, csVector3& end) = 0;
};
/**
* Cylinder value emitter - returns values in a cylinder.
*
* Main creators of instances implementing this interface:
* - iEmitFactoryState::CreateCylinder()
*
* Main users of this interface:
* - iEmitState
*/
struct iEmitCylinder : public iEmitGen3D
{
SCF_INTERFACE(iEmitCylinder, 2, 0, 0);
/// set content, start and end position of cylinder, min/max distance
virtual void SetContent(const csVector3& start, const csVector3& end,
float min, float max) = 0;
/// get content
virtual void GetContent(csVector3& start, csVector3& end,
float& min, float& max) = 0;
};
/**
* Sphere tangential value emitter - gives direction tangential to sphere
* Uses the given point, gives a tangential direction for that.
*
* Main creators of instances implementing this interface:
* - iEmitFactoryState::CreateSphereTangent()
*
* Main users of this interface:
* - iEmitState
*/
struct iEmitSphereTangent : public iEmitGen3D
{
SCF_INTERFACE(iEmitSphereTangent, 2, 0, 0);
/// set content, center of sphere, min/max size
virtual void SetContent(const csVector3& center, float min, float max) = 0;
/// get content
virtual void GetContent(csVector3& center, float& min, float& max) = 0;
};
/**
* Cylinder tangential value emitter - gives direction tangential to cylinder
* Uses the given point, gives a tangential direction for that
*
* Main creators of instances implementing this interface:
* - iEmitFactoryState::CreateCylinderTangent()
*
* Main users of this interface:
* - iEmitState
*/
struct iEmitCylinderTangent : public iEmitGen3D
{
SCF_INTERFACE(iEmitCylinderTangent, 2, 0, 0);
/// set content, start,end of cylinder, min/max size
virtual void SetContent(const csVector3& start, const csVector3& end,
float min, float max) = 0;
/// get content
virtual void GetContent(csVector3& start, csVector3& end,
float& min, float& max) = 0;
};
/**
* This interface describes the API for the emitter mesh factory object.
*
* Main creators of instances implementing this interface:
* - Emit mesh object plugin (crystalspace.mesh.object.emit)
* - iMeshObjectType::NewFactory()
*
* Main ways to get pointers to this interface:
* - scfQueryInterface() on iMeshFactoryWrapper::GetMeshObjectFactory()
*
* Main users of this interface:
* - Emit Factory Loader plugin (crystalspace.mesh.loader.factory.emit)
*/
struct iEmitFactoryState : public virtual iBase
{
SCF_INTERFACE(iEmitFactoryState, 2, 0, 0);
/// create an emitter, you have to set the content
virtual csRef<iEmitFixed> CreateFixed() = 0;
/// create an emitter
virtual csRef<iEmitBox> CreateBox() = 0;
/// create an emitter
virtual csRef<iEmitSphere> CreateSphere() = 0;
/// create an emitter
virtual csRef<iEmitCone> CreateCone() = 0;
/// create an emitter
virtual csRef<iEmitMix> CreateMix() = 0;
/// create an emitter
virtual csRef<iEmitLine> CreateLine() = 0;
/// create an emitter
virtual csRef<iEmitCylinder> CreateCylinder() = 0;
/// create an emitter
virtual csRef<iEmitSphereTangent> CreateSphereTangent() = 0;
/// create an emitter
virtual csRef<iEmitCylinderTangent> CreateCylinderTangent() = 0;
};
/**
* This interface describes the API for the emitter mesh object.
*
* Main creators of instances implementing this interface:
* - Emit mesh object plugin (crystalspace.mesh.object.emit)
* - iMeshObjectFactory::NewInstance()
*
* Main ways to get pointers to this interface:
* - scfQueryInterface() on iMeshWrapper::GetMeshObject()
*
* Main users of this interface:
* - Emit Loader plugin (crystalspace.mesh.loader.emit)
*/
struct iEmitState : public virtual iBase
{
SCF_INTERFACE(iEmitState, 2, 0, 0);
/// Set the number of particles to use.
virtual void SetParticleCount (int num) = 0;
/// Get the number of particles used.
virtual size_t GetParticleCount () const = 0;
/// Enable or disable lighting.
virtual void SetLighting (bool l) = 0;
/// See if lighting is enabled.
virtual bool GetLighting () const = 0;
/// Set the time to live for all particles, in msec.
virtual void SetParticleTime(int ttl) = 0;
/// Get the time to live for all particles, in msec.
virtual int GetParticleTime() const = 0;
/// set the particle start position emitter, increfs
virtual void SetStartPosEmit(iEmitGen3D *emit) = 0;
/// get the particle start position emitter
virtual iEmitGen3D* GetStartPosEmit() const = 0;
/// set the particle start speed emitter, increfs. The position is given.
virtual void SetStartSpeedEmit(iEmitGen3D *emit) = 0;
/// get the particle start speed emitter
virtual iEmitGen3D* GetStartSpeedEmit() const = 0;
/// set the particle start acceleration emitter, increfs. Position is given.
virtual void SetStartAccelEmit(iEmitGen3D *emit) = 0;
/// get the particle start acceleration emitter
virtual iEmitGen3D* GetStartAccelEmit() const = 0;
/// set the particle attrator emitter, increfs. Position is given.
virtual void SetAttractorEmit(iEmitGen3D *emit) = 0;
/// get the particle attrator emitter. Null means no attractor.
virtual iEmitGen3D* GetAttractorEmit() const = 0;
/// Set the force of the attractor (negative gives repulsion)
virtual void SetAttractorForce(float f) = 0;
/// Get the force of the attractor
virtual float GetAttractorForce() const = 0;
/// Set the field speed emitter, increfs (given position determines speed)
virtual void SetFieldSpeedEmit(iEmitGen3D *emit) = 0;
/// get field speed emitter, can be 0
virtual iEmitGen3D* GetFieldSpeedEmit() const = 0;
/// Set the field accel emitter, increfs (given position determines accel)
virtual void SetFieldAccelEmit(iEmitGen3D *emit) = 0;
/// get field accel emitter, can be 0
virtual iEmitGen3D* GetFieldAccelEmit() const = 0;
/**
* Add an aging moment, they are interpolated.
* time is the time since creation of the particle in msec.
* color is a gouraud color to set the particle to. (0..1)
* alpha can be used to make the particles transparent.
* the value 0 is a solid particle, the value 1 is an invisible particle
* the swirl value gives a swirlyness of the movement of the particle.
* rotspeed is the rotationspeed of the particle (per second).
* scale is the size of the particle at the time
*/
virtual void AddAge(int time, const csColor& color, float alpha,
float swirl, float rotspeed, float scale) = 0;
/// Get the number of aging moments
virtual int GetAgingCount() const = 0;
/// get the settings of aging moment i (0..number-1)
virtual void GetAgingMoment(int i, int& time, csColor& color, float &alpha,
float& swirl, float& rotspeed, float& scale) = 0;
/// remove an aging moment
virtual void RemoveAge(int time, const csColor& color, float alpha,
float swirl, float rotspeed, float scale) = 0;
/// replace the settings for the age at the timepoint given.
virtual void ReplaceAge(int time, const csColor& color, float alpha,
float swirl, float rotspeed, float scale) = 0;
/// Set the particle system to use rectangular particles, given w, h
virtual void SetRectParticles(float w, float h) = 0;
/// Set the particle system to use regular shaped particles
virtual void SetRegularParticles(int n, float radius) = 0;
/// true if using rect particles. false if using regular particles.
virtual bool UsingRectParticles() const = 0;
/// get the size of rect particles;
virtual void GetRectParticles(float &w, float &h) const = 0;
/// Get the regular shaped particles sides and radius
virtual void GetRegularParticles(int& n, float& radius) const = 0;
/// Set container box, particles are only allowed inside this box.
virtual void SetContainerBox(bool enabled, const csVector3& min,
const csVector3& max) = 0;
/**
* Get container box, particles are only allowed inside this box.
* returns true if the container box is enabled.
* Objects outside this box are not drawn. But they are also
* not restarted, since that would cause many short-aged particles.
*/
virtual bool GetContainerBox(csVector3& min, csVector3& max) const = 0;
};
/** @} */
#endif // __CS_IMESH_EMIT_H__
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