halo_system.cpp File Reference

#include <vector>
#include <string>
#include "vec.h"
#include "matrix.h"
#include "cmd/unit_generic.h"
#include "halo_system.h"
#include "universe.h"
#include <stdlib.h>
#include <stdio.h>
#include "vegastrike.h"
#include "mesh.h"
#include "vs_globals.h"
#include "xml_support.h"
#include "config_xml.h"
#include "gfx/particle.h"
#include "lin_time.h"
#include "animation.h"
#include "car_assist.h"
#include "cmd/collide2/CSopcodecollider.h"
#include "cmd/unit_collide.h"

Go to the source code of this file.

Macros
#define	HALO_SMOOTHING_UP_FACTOR   (0.02)
#define	HALO_SMOOTHING_DOWN_FACTOR   (0.01)
#define	HALO_STEERING_UP_FACTOR   (0.00)
#define	HALO_STEERING_DOWN_FACTOR   (0.01)
#define	HALO_STABILIZATION_RANGE   (0.25)

Functions
static float	ffmax (float a, float b)
void	DoParticles (QVector pos, float percent, const Vector &velocity, float radial_size, float particle_size, int faction)
void	LaunchOneParticle (const Matrix &mat, const Vector &vel, unsigned int seed, Unit *mush, float hull, int faction)
static float	mymin (float a, float b)
static float	mymax (float a, float b)
static float	HaloAccelSmooth (float linaccel, float olinaccel, float maxlinaccel)

Macro Definition Documentation

#define HALO_SMOOTHING_DOWN_FACTOR   (0.01)

Definition at line 24 of file halo_system.cpp.

Referenced by HaloAccelSmooth().

#define HALO_SMOOTHING_UP_FACTOR   (0.02)

Definition at line 23 of file halo_system.cpp.

Referenced by HaloAccelSmooth().

#define HALO_STABILIZATION_RANGE   (0.25)

Definition at line 27 of file halo_system.cpp.

#define HALO_STEERING_DOWN_FACTOR   (0.01)

Definition at line 26 of file halo_system.cpp.

Referenced by HaloAccelSmooth().

#define HALO_STEERING_UP_FACTOR   (0.00)

Definition at line 25 of file halo_system.cpp.

Referenced by HaloAccelSmooth().

Function Documentation

void DoParticles	(	QVector	pos,
		float	percent,
		const Vector &	velocity,
		float	radial_size,
		float	particle_size,
		int	faction
	)

Definition at line 33 of file halo_system.cpp.

References GFXColor::a, ParticleTrail::AddParticle(), GFXColor::b, ParticlePoint::col, ffmax(), float, GFXColor::g, FactionUtil::GetSparkColor(), VegaConfig::getVariable(), i, ParticlePoint::loc, XMLSupport::parse_bool(), XMLSupport::parse_float(), particleTrail, QVector, GFXColor::r, UniverseUtil::sqrt(), and vs_config.

Referenced by HaloSystem::Draw(), and LaunchOneParticle().

{
    percent = 1-percent;
    int i = rand();
    static float scale = XMLSupport::parse_float( vs_config->getVariable( "graphics", "sparklescale", "8" ) );
    static float sspeed     = XMLSupport::parse_float( vs_config->getVariable( "graphics", "sparklespeed", ".5" ) );
    static float flare      = XMLSupport::parse_float( vs_config->getVariable( "graphics", "sparkleflare", ".15" ) );
    static float spread     = XMLSupport::parse_float( vs_config->getVariable( "graphics", "sparklespread", ".04" ) );
    static float absspeed   = XMLSupport::parse_float( vs_config->getVariable( "graphics", "sparkleabsolutespeed", ".02" ) );
    static bool  fixed_size = XMLSupport::parse_bool( vs_config->getVariable( "graphics", "sparklefixedsize", "0" ) );
    if (i < RAND_MAX*percent*scale) {
        ParticlePoint pp;
        float   r1 = rand()/( (float) RAND_MAX*.5 )-1;
        float   r2 = rand()/( (float) RAND_MAX*.5 )-1;
        float   r3 = rand()/( (float) RAND_MAX*.5 )-1;
        QVector rand( r1, r2, r3 );
        pp.loc   = pos+rand*radial_size*flare;
        const float *col = FactionUtil::GetSparkColor( faction );
        pp.col.r = col[0];
        pp.col.g = col[1];
        pp.col.b = col[2];
        pp.col.a = 1.0f;
        static float sciz = XMLSupport::parse_float( vs_config->getVariable( "graphics", "sparklesizeenginerelative", ".125" ) );
        particleTrail.AddParticle( pp, rand*(ffmax(
                                                 velocity.Magnitude(),
                                                 absspeed )*spread+absspeed)+velocity*sspeed,
                                  fixed_size ? sciz : (sqrt( particle_size )*sciz) );
    }
}

static float ffmax ( float  a, float  b  )

static

Definition at line 29 of file halo_system.cpp.

References b.

Referenced by DoParticles().

{
    return a > b ? a : b;
}

static float HaloAccelSmooth ( float  linaccel, float  olinaccel, float  maxlinaccel  )

static

Definition at line 162 of file halo_system.cpp.

References GetElapsedTime(), HALO_SMOOTHING_DOWN_FACTOR, HALO_SMOOTHING_UP_FACTOR, HALO_STEERING_DOWN_FACTOR, HALO_STEERING_UP_FACTOR, mymax(), and mymin.

Referenced by HaloSystem::Draw(), and HaloSystem::ShouldDraw().

{
    linaccel = mymax( 0, mymin( maxlinaccel, linaccel ) );     //Clamp input, somehow, sometimes it's not clamped
    float phase = pow( ( (linaccel > olinaccel) ? HALO_SMOOTHING_UP_FACTOR : HALO_SMOOTHING_DOWN_FACTOR ), GetElapsedTime() );
    float olinaccel2;
    if (linaccel > olinaccel)
        olinaccel2 = mymin( linaccel, olinaccel+maxlinaccel*HALO_STEERING_UP_FACTOR );

    else
        olinaccel2 = mymax( linaccel, olinaccel-maxlinaccel*HALO_STEERING_DOWN_FACTOR );
    linaccel = (1-phase)*linaccel+phase*olinaccel2;
    linaccel = mymax( 0, mymin( maxlinaccel, linaccel ) );
    return linaccel;
}

void LaunchOneParticle	(	const Matrix &	mat,
		const Vector &	vel,
		unsigned int	seed,
		Unit *	mush,
		float	hull,
		int	faction
	)

Definition at line 63 of file halo_system.cpp.

References Unit::colTrees, done, DoParticles(), StarSystemGent::faction, csOPCODECollider::getNumVertex(), VegaConfig::getVariable(), csOPCODECollider::getVertex(), int, XMLSupport::parse_float(), QVector, collideTrees::rapidColliders, Unit::rSize(), Transform(), collideTrees::usingColTree(), v, and vs_config.

Referenced by GameUnit< UnitType >::Draw().

{
    static float sciz =
        XMLSupport::parse_float( vs_config->getVariable( "graphics", "sparkleenginesizerelativetoship", "0.1875" ) );
    if (mush) {
        bool done = false;
        collideTrees *colTrees = mush->colTrees;
        if (colTrees) {
            if ( colTrees->usingColTree() ) {
                csOPCODECollider *colTree = colTrees->rapidColliders[0];
                unsigned int numvert = colTree->getNumVertex();
                if (numvert) {
                    unsigned int whichvert = seed%numvert;
                    QVector v( colTree->getVertex( whichvert ).Cast() );
                    v    = Transform( mat, v );
                    DoParticles( v, hull, vel, 0, mush->rSize()*sciz, faction );
                    done = true;
                }
            }
        }
        if (!done) {
            // maybe ray collision?
        }
        if (!done) {
            unsigned int siz = (unsigned int) ( 2*mush->rSize() );
            if (siz != 0) {
                QVector v( (seed%siz)-siz/2,
                          (seed%siz)-siz/2,
                          (seed%siz)-siz/2 );
                DoParticles( v, hull, vel, 0, mush->rSize()*sciz, faction );
                done = true;
            }
        }
    }
}

static float mymax ( float  a, float  b  )

static

Definition at line 158 of file halo_system.cpp.

References b.

{
    return a > b ? a : b;
}

static float mymin ( float  a, float  b  )

static

Definition at line 154 of file halo_system.cpp.

References a.

{
    return a > b ? b : a;
}