gun bobbing class

[arnir]

Code: Select all

/*-----------------------------------------------------------------------------*
| weaponMotion.h                                                               |
|                                                                              |
| last edit date: (5.5. 2009)                                                  |
|                                                                              |
| author:  Martin Cmar                                                         |
|                                                                              |
*-----------------------------------------------------------------------------*/

#ifndef WEAPON_MOTION_H
#define WEAPON_MOTION_H


#include <irrlicht.h>

using namespace irr;
using namespace core;
using namespace scene;
using namespace video;



class weaponMotion
{
ICameraSceneNode * camera;
vector3df lastPos;

public:



weaponMotion(ICameraSceneNode * cam)
{
camera = cam;
lastPos = camera->getPosition();
}


void weaponMotion::update(int time,IAnimatedMeshSceneNode * node, vector3df pos)
{

vector3df diff = camera->getPosition() - lastPos;
float scale = sqrt( diff.X * diff.X	+ diff.Z * diff.Z); 

if(scale > 8)
scale = 8;

float fracsin = sin(2 * time * 0.005);
float fracsin2 = sin( time * 0.005);
	
pos.Y += scale * fracsin * 0.1;
pos.X += scale * fracsin2 * 0.1;

node->setPosition(pos);	
lastPos = camera->getPosition();

}

};

#endif

example:

Code: Select all

weaponMotion * m = new weaponMotion(camera);

and in main loop:

Code: Select all

m->update(device->getTimer()->getTime(), mygun, defaultgunpos);

by changing numeral vaulues you edit speed, size and frequency of gun bobbing

[psychophoniac]

maybe writing this as an ISceneNodeAnimator would make sense, then you don't have to update it by hand in your main loop...!

[DarkRage4]

awesome share it works for me