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tdeartwork/kscreensaver/kdesavers/firesaver.cpp

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// This file is part of KFireSaver3D.
// KFireSaver3D 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.
// KFireSaver3D 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 KFireSaver3D; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
// Author: Enrico Ros, based on the great work of David Sansome (kfiresaver)
// Email: asy@libero.it
#include <math.h>
#include <sys/time.h>
#include <stdlib.h>
#include <kconfig.h>
#include <kdebug.h>
#include <kstandarddirs.h>
#include <klocale.h>
#include <kurl.h>
#include <kiconloader.h>
#include <kmessagebox.h>
#include <arts/kmedia2.h>
#include <arts/kplayobject.h>
#include <arts/kplayobjectfactory.h>
#include "firesaversetup.h"
#include "firesaverparticle.h"
#include "firesaverwriter.h"
#include "firesaver.h"
/* Factory code for KScreensaver begins *here* *\
\* */
#include <kscreensaver.h>
#include <kdialogbase.h>
class KFireSaverKSS : public KScreenSaver
{
public:
KFireSaverKSS( WId id )
: KScreenSaver( id )
{
setBackgroundColor( black );
erase();
saver = new KFireSaver;
embed(saver);
saver->show();
}
~KFireSaverKSS()
{
delete saver;
}
private:
KFireSaver* saver;
};
class KFireSaverSetupKDB : public KDialogBase
{
public:
KFireSaverSetupKDB( TQWidget* parent = 0, const char* name = 0 )
: KDialogBase( parent, name, true, i18n("Setup Screen Saver"),
Ok | Cancel | Help, Ok, true )
{
setup = new KFireSaverSetup( this );
setMainWidget( setup );
setButtonText( KDialogBase::Help, i18n( "A&bout" ) );
}
private slots:
void slotHelp()
{
KMessageBox::about(this, i18n("<h3>KFireSaver 3D 1.0</h3>\n<p>TEST Koral - Enrico Ros::2004</p>") );
}
void slotOk()
{
setup->writeConfig();
accept();
}
private:
KFireSaverSetup * setup;
};
extern "C"
{
KDE_EXPORT const char *kss_applicationName = "kfiresaver.kss";
KDE_EXPORT const char *kss_description = I18N_NOOP( "Fireworks 3D (GL)" );
KDE_EXPORT const char *kss_version = "0.7";
KDE_EXPORT KScreenSaver *kss_create( WId id )
{
return new KFireSaverKSS( id );
}
KDE_EXPORT TQDialog *kss_setup()
{
return new KFireSaverSetupKDB;
}
}
/* *\
\* Factory code for KScreensaver ends *here* */
KFireSaver :: KFireSaver( TQWidget *parent, const char *name )
: TQGLWidget( parent, name )
{
// set random seed to initialize drand48() calls
timeval tv;
gettimeofday(&tv,NULL);
srand48( (long)tv.tv_usec );
readConfig();
particleList.setAutoDelete(true);
starList.setAutoDelete(true);
imageList.setAutoDelete(true);
playObjectList.setAutoDelete(true);
//initialize openGL context before managing GL calls
makeCurrent();
loadTexture( locate("data","kfiresaver/kfs_particle.png"), particleTexture );
loadTexture( locate("data","kfiresaver/kfs_particle_flare.png"), flareTexture );
loadTexture( locate("data","kfiresaver/kfs_particle_diastar.png"), diastarTexture );
starTexture = particleTexture;
//generate stars
if (parameters.enableStars) {
int number = parameters.starsNumber + 1;
number *= 10 * number;
for (int i=0 ; i<number ; i++)
{
Particle * star = new Particle( Particle::StarParticle );
star->initializeValues();
star->texture = starTexture;
if (parameters.enableStarGradient)
{
GLfloat red = star->colour[0],
green = star->colour[1],
blue = star->colour[2],
tint = 0.5 + star->ypos / FIELDWIDTH,
merge = 0.3 + DRAND*0.7,
mergen = 1 - merge;
star->colour[0] = red * merge + (1.0-tint) * mergen;
star->colour[1] = green * merge + tint * mergen;
star->colour[2] = blue * merge + tint * mergen;
}
starList.append( star );
}
}
//generate bottom fire
if (parameters.enableBottomFire) {
float cRed = (float)parameters.bottomFireColor.red() / 255.0,
cGreen = (float)parameters.bottomFireColor.green() / 255.0,
cBlue = (float)parameters.bottomFireColor.blue() / 255.0;
for (int i=0 ; i<NUMBER_OF_FIREPARTICLES ; i++)
{
Particle* particle = new Particle( Particle::FireParticle );
particle->initializeValues();
particle->texture = particleTexture;
particle->zspeed *= 4.0;
particle->colour[0] = cRed * (0.6 + 0.4*DRAND);
particle->colour[1] = cGreen * (0.6 + 0.4*DRAND);
particle->colour[2] = cBlue * (0.6 + 0.4*DRAND);
particleList.append(particle);
}
}
//get sound files
if (parameters.enableSound) {
sound_explosion = locate("data","kfiresaver/kfs_explode.ogg");
sound_debris = locate("data","kfiresaver/kfs_debris.ogg");
}
//create the writer class that manages flying writings.
if ( parameters.enableWritings )
writer = new Writer("kfs_letters.desc");
showp.forceBicolour =
showp.forceColour =
showp.forcePower =
showp.forceType = false;
showp.timeStamp = 0.0;
startTimer(MSECPERIOD);
//force initialization of "show" variables for the first time
timerEvent(NULL);
}
KFireSaver :: ~KFireSaver()
{
freeTexture( particleTexture );
freeTexture( starTexture );
particleList.clear();
starList.clear();
imageList.clear();
playObjectList.clear();
if ( parameters.enableWritings )
delete writer;
}
void KFireSaver :: initializeGL()
{
glDisable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA,GL_ONE);
glShadeModel( GL_SMOOTH );
resizeGL( 640, 480 );
}
void KFireSaver :: resizeGL( int width, int height )
{
glViewport( 0, 0, width, height );
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho( -FIELDW_2, FIELDW_2, -FIELDW_2, FIELDW_2, 5.0, 60.0 );
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
float ratio = (float)width / (float)height,
numH = 750 - 90 * parameters.particleSize,
numW = 1000 - 120 * parameters.particleSize;
if ( ratio >= (4.0/3.0) ) {
unitX = FIELDWIDTH / (numH * ratio);
unitY = FIELDWIDTH / numH;
} else {
unitX = FIELDWIDTH / numW;
unitY = FIELDWIDTH / (numW / ratio);
}
timeval tv;
gettimeofday(&tv,NULL);
timeStampFrame = (double)tv.tv_sec + (double)tv.tv_usec/1000000.0;
firstGLFrame = true;
}
void KFireSaver :: paintGL ()
/* Main procedure. It does the following:
- calculate time diff between current and previous frame
- clear the color buffer
- simple render of stars
- advanced render of particles
- render
- update physics based on time difference
- check die/change conditions
- call to explode_firework if a leader dies
- if random -> start a new firework
- if random -> explode a penquin or kde logo
*/
{
/* calculate TIME ELAPSED between current and previous frame */
timeval tv;
gettimeofday(&tv,NULL);
double timeCurrent = (double)tv.tv_sec + (double)tv.tv_usec/1000000.0;
double timeDiff = (MSECPERIOD / 1000.0);
if (parameters.enableRealtime)
{
timeDiff = timeCurrent - timeStampFrame;
timeStampFrame = timeCurrent;
timeDiff = (timeDiff > 0.5) ? 0.5 : (timeDiff < 0.005) ? 0.005 : timeDiff;
}
/* CLEAR SCREEN: to do it there are 2 ways */
glLoadIdentity();
glTranslatef( 0, 0, -50.0 );
glDisable( GL_TEXTURE_2D );
if ( !parameters.enableFade || firstGLFrame )
{ // quick - clear the OpenGL color buffer
glClearColor( 0.0, 0.0, 0.0, 1.0 );
glClear( GL_COLOR_BUFFER_BIT );
firstGLFrame = false;
}
else
{ // good looking
/* superpose a semi-transparent black rectangle so we
can see a sort of 'tail' for each particle drawn. */
const GLfloat conv_tab[10] = {
0.50, 0.33, 0.22, 0.15, 0.10,
0.07, 0.05, 0.03, 0.02, 0.01 };
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glColor4f(0.0,0.0,0.0, conv_tab[parameters.fadeAmount]);
glBegin( GL_TRIANGLE_STRIP );
glVertex2f( FIELDW_2, FIELDW_2 );
glVertex2f( -FIELDW_2, FIELDW_2 );
glVertex2f( FIELDW_2, -FIELDW_2 );
glVertex2f( -FIELDW_2, -FIELDW_2 );
glEnd();
glBlendFunc(GL_SRC_ALPHA,GL_ONE);
}
/* render STARS */
if (parameters.enableStars) {
if ( starTexture ) {
glEnable( GL_TEXTURE_2D );
glBindTexture( GL_TEXTURE_2D, currentTexture = starTexture );
} else
glDisable( GL_TEXTURE_2D );
glBegin( GL_QUADS );
bool flickers = parameters.enableStarFlickering;
float alpha = flickers ? 0.5 : 1.0;
Particle * star = starList.first();
for (; star; star = starList.next())
{
if (flickers && DRAND<0.6)
continue;
GLfloat sizeX = star->pixelSize * unitX,
sizeY = star->pixelSize * unitY,
pLeft = star->xpos - sizeX,
pRight = star->xpos + sizeX,
pTop = star->ypos + sizeY,
pBottom = star->ypos - sizeY;
glColor4f(star->colour[0], star->colour[1], star->colour[2], alpha);
glTexCoord2f( 0, 0 ); // Bottom Left
glVertex2f( pLeft, pBottom );
glTexCoord2f( 0, 1 ); // Top Left
glVertex2f( pLeft, pTop );
glTexCoord2f( 1, 1 ); // Top Right
glVertex2f( pRight, pTop );
glTexCoord2f( 1, 0 ); // Bottom Right
glVertex2f( pRight, pBottom );
}
glEnd();
}
/* render FIREWORKS */
glBegin( GL_QUADS );
bool playedExplodeSound = false;
bool flashedScreen = false;
Particle * particle = particleList.first();
for (; particle; particle = particleList.next())
{
//bind the texture for current particle (if not already bound)
if ( !particle->texture ) {
glEnd();
glDisable( GL_TEXTURE_2D );
glBegin( GL_QUADS );
currentTexture = 0;
} else if ( particle->texture != currentTexture ) {
glEnd();
glEnable( GL_TEXTURE_2D );
glBindTexture( GL_TEXTURE_2D, currentTexture = particle->texture );
glBegin( GL_QUADS );
}
//perspective projection (done by hand to make it funnier than opengl's :-)
float mfactor = PERSP_MAG_FACTOR * particle->ypos;
if ( mfactor < -246.0 ) {
particleList.remove();
particleList.prev();
continue;
}
float sfactor = 256.0 / (256.0 + mfactor),
posx = sfactor * particle->xpos,
posy = sfactor * particle->zpos - 4.0;
//size computation (magnify if enableMegaFlares is set)
if ( parameters.enableMegaFlares ) {
mfactor = parameters.megaFlares*particle->ypos;
if ( mfactor < -255.0 || mfactor > 512.0 ) {
particleList.remove();
particleList.prev();
continue;
}
sfactor = 256.0 / (256.0 + mfactor);
if ( sfactor > 64 )
sfactor = 76.8 - sfactor / 5.0;
}
float size = sfactor * particle->pixelSize,
sizeX = size * unitX,
sizeY = size * unitY;
//determine brightness (alpha component) for the particle
if ( particle->useLife ) {
float life = particle->life,
startLife = particle->startLife;
//bright changes with the following curve: "2*k - k^2" (or "k(2-k)")
if ( life > startLife )
particle->colour[3] = startLife + 1 - life;
else
particle->colour[3] = life / startLife;
//apply flickering if enabled
if (particle->flicker < 0) {
particle->colour[3] = 0.2;
if (++particle->flicker >= 0)
particle->flicker = FLICKER_FRAMES_DELAY;
} else if (particle->flicker > 0) {
if ( life <= startLife )
particle->colour[3] = 1.0;
if (--particle->flicker <= 0)
particle->flicker = -FLICKER_FRAMES_DELAY;
}
glColor4fv( particle->colour );
} else
glColor3fv( particle->colour );
//draw particle
float pLeft = posx - sizeX,
pTop = posy + sizeY,
pRight = posx + sizeX,
pBottom = posy - sizeY;
glTexCoord2f( 0, 0 ); // Bottom Left
glVertex2f( pLeft, pBottom );
glTexCoord2f( 0, 1 ); // Top Left
glVertex2f( pLeft, pTop );
glTexCoord2f( 1, 1 ); // Top Right
glVertex2f( pRight, pTop );
glTexCoord2f( 1, 0 ); // Bottom Right
glVertex2f( pRight, pBottom );
//phisically update parameters of the particle
particle->updateParameters( timeDiff );
//check for particle death / explosion
switch (particle->particleType)
{
//a Fireparticle is restarted when in right conditions
case Particle::FireParticle:
if ( posx < -FIELDW_2 || posx > FIELDW_2 ||
(particle->zpos < -10.0 && posy < -FIELDW_2) )
{
particle->initializeValues();
if ( DRAND > 0.9995 )
particle->zspeed *= 4;
}
break;
//a leader explodes when his z speed drops to zero
//or, if it uses life, at death
case Particle::FireWorkLeaderParticle:
if ((particle->zspeed <= 0.0f && !particle->useLife) ||
(particle->useLife && particle->life <= 0.0) )
{
// play sound if enabled (and once per frame)
if (parameters.enableSound && !playedExplodeSound)
{
playSound(sound_explosion);
playedExplodeSound = true;
}
// flash screen if enabled
if (parameters.enableFlash && !flashedScreen) {
glEnd();
glDisable( GL_TEXTURE_2D );
glColor4f( 1,1,1, parameters.flashOpacity / 10.0 );
glBegin( GL_TRIANGLE_STRIP );
glVertex2f( FIELDW_2, FIELDW_2 );
glVertex2f( -FIELDW_2, FIELDW_2 );
glVertex2f( FIELDW_2, -FIELDW_2 );
glVertex2f( -FIELDW_2, -FIELDW_2 );
glEnd();
if ( particleTexture )
glEnable( GL_TEXTURE_2D );
glBegin( GL_QUADS );
flashedScreen = true;
}
// generating children and removing parent
int elementIndex = particleList.at();
explodeFirework(particle);
particleList.remove(elementIndex);
particleList.prev();
} else if ( parameters.enableTrails && DRAND < 0.4 ) {
// leave trail behind the particle (it'a small and slow red debris)
Particle * p = new Particle( Particle::FireWorkDebrisParticle );
p->initializeValues( 0, particle, 1, 1 );
p->texture = particleTexture;
p->xspeed /= 4;
p->yspeed /= 4;
p->zspeed /= 8;
p->zacc /= 4;
p->pixelSize = 2;
p->colour[0] /= 2;
int elementIndex = particleList.at();
particleList.append( p );
particleList.at( elementIndex );
}
break;
//remove if dead or outside field
default:
if (particle->life <= 0.0 || posx<-FIELDW_2 || posx>FIELDW_2 || posy<-FIELDW_2) {
particleList.remove();
particleList.prev();
}
break;
}
}
glEnd();
/* render WRITINGS */
if ( parameters.enableWritings )
{
int chance = (int) (1000.0 * DRAND);
if ( !chance ) {
static const TQString someStrings[] = {
i18n("www.kde.org"),
i18n("My TDE, please!"),
i18n("KoNqUeR the World"),
i18n("KFIRESAVER 3D"),
i18n("Gimme your eyes..."),
i18n("Thank you for using TDE"),
i18n("Going insane tonight"),
};
int n = (int)(6.0 * DRAND);
writer->spawnWords( someStrings[n], Writer::Fun1 );
}
writer->render( timeDiff );
}
/* generate a new FIREWORK_LEADER */
int random = (int) ((float)parameters.fireworksFrequency * DRAND);
if (showp.ShowType == Show)
{
//double the chances ('frequency') to raise a new leaderParticle
//but envelop it under a sine function
float step = (showp.timeStamp - timeCurrent) / showp.timeGap;
if (DRAND > sin(M_PI*step))
random = -1;
if (showp.type == AngelHairs && DRAND < 0.5)
random = -1;
}
if ( !random )
{
Particle * particle = new Particle( Particle::FireWorkLeaderParticle );
particle->initializeValues();
particle->texture = flareTexture;
particleList.append( particle );
}
/* explode a logo */
int logoImages = imageList.count();
if ( logoImages > 0 ) {
random = (int) (parameters.logoFrequency * logoImages * 200.0 * DRAND);
if ( random < logoImages )
{
if (parameters.enableFlash && !flashedScreen) {
glDisable( GL_TEXTURE_2D );
glColor4f( 1,1,1, parameters.flashOpacity / 10.0 );
glBegin( GL_TRIANGLE_STRIP );
glVertex2f( FIELDW_2, FIELDW_2 );
glVertex2f( -FIELDW_2, FIELDW_2 );
glVertex2f( FIELDW_2, -FIELDW_2 );
glVertex2f( -FIELDW_2, -FIELDW_2 );
glEnd();
}
burnLogo( imageList.at(random) );
}
}
}
int KFireSaver :: pickColour()
{
int color = (int) (DRAND * parameters.colorsCount);
return parameters.colorsT[ color ];
}
KFireSaver :: enumFireworkType KFireSaver :: pickType()
{
int type = (int) (DRAND * parameters.typesCount);
return parameters.typesT[ type ];
}
void KFireSaver :: explodeFirework(Particle* leaderParticle)
{
GLfloat displace[3] = {0.0,0.0,0.0};
float tmp1 = 0.0, tmp2 = 0.0, tmp3 = 0.0, tmp4 = 0.0, tmp5 = 0.0;
// color of exploded particles
bool bicolor = parameters.enableCombos && (showp.forceBicolour || DRAND > 0.95),
flickers = false;
int cscheme = showp.forceColour ? showp.colour : pickColour(),
cscheme2 = showp.forceColour ? showp.colourSec : pickColour();
// randomize type of exploding firework
enumFireworkType fwType =
showp.forceType ? (enumFireworkType) showp.type : pickType();
// other options for generated particles
int number = (int) ((DRAND + DRAND) * 150.0);
float power = showp.forcePower ?
showp.powerEnvelop * (0.8 + 0.3*DRAND) :
DRAND * 11.0 + 2.0,
powermin = DRAND * power;
// now some rules ...
//a splitter can't split up more than 2 times
if (fwType == Splitter && leaderParticle->explosionsDepth > 1) {
if (parameters.typesCount == 1)
return;
if (showp.forceType)
fwType = showp.typeSec;
if (fwType == Splitter)
while ( (fwType = pickType()) == Splitter );
}
// PRE-ADJUST parameters for the firework we're creating
switch ( fwType )
{
//no need to handle this. it's the default configuration.
case Sphere:
break;
//explosion whithout emitting particles, only a flash
case NoFW:
number = 1;
power = powermin = 0;
break;
//splits up into 'number' orange pieces. tmp1 holds base_life
case Splitter:
cscheme = showp.forceColour ? showp.colour : 1;
bicolor = false;
number = 3 + (int) (DRAND * 4);
power /= 2.0;
powermin = power / 2.0;
tmp1 = 0.4 + DRAND * 1.5;
break;
//randomize a couple of angles (phi - theta) for exploding circle
case BiCircle:
number *= 2;
case Circle:
power = DRAND * 5.0 + 4.0;
tmp1 = DRAND * M_PI;
tmp2 = DRAND * M_PI;
tmp4 = cos(tmp2); //c2
tmp3 = sin(tmp2); //s2
tmp2 = cos(tmp1); //c1
tmp1 = sin(tmp1); //s1
break;
//cascade of flickering orange particles
case AngelHairs:
cscheme = showp.forceColour ? showp.colour : 1;
bicolor = false;
flickers = true;
power = 0.8 + DRAND * 1.9;
powermin = DRAND*0.5;
number = 100 + (int)(DRAND * 150);
displace[0] = -leaderParticle->xspeed/2;
displace[1] = -leaderParticle->yspeed/2;
displace[2] = power;
break;
//behave as a standard spherical firework
case Spirals:
break;
//not yet implemented, suppressing particles
case SuperNova:
case NoRender:
number = 0;
break;
}
//limit number of particles as we are getting to the capacity saturation
float currentParticles = (float) particleList.count();
const float particleCapacity = 15000;
const float particleGap = 8000;
if ( number > 10 && currentParticles > (particleCapacity - particleGap) )
{
//NoFW, Splitter and NoRender aren't limited.
number = (int)( (float)number * (particleCapacity - currentParticles) / particleGap );
if ( number < 10 )
number = 0;
}
int newExplosionsDepth = leaderParticle->explosionsDepth + 1;
for (int i=0 ; i<number ; i++)
{
Particle * particle;
if ( fwType == Spirals )
particle = new TurningParticle( Particle::FireWorkDebrisParticle );
else
particle = new Particle( Particle::FireWorkDebrisParticle );
particle->initializeValues (
bicolor && (i>number/2) ? cscheme2 : cscheme,
leaderParticle, powermin, power,
flickers, displace );
particle->texture = particleTexture;
particle->explosionsDepth = newExplosionsDepth;
// POST-ADJUST particle coefficients adapting to current FireworkType
switch ( fwType )
{
//create a big, white particle, simulating explosion
case NoFW:
if (parameters.enableFade)
particle->startLife = particle->life = 0.030;
else
particle->startLife = particle->life = 0.075;
particle->texture = flareTexture;
particle->colour[0]=
particle->colour[1]=
particle->colour[2]=1.0;
particle->pixelSize = 50.0 + 75.0 * DRAND;
particle->zacc = 0;
break;
//default. no need to change parameters, only create the
//'sphere light' as the first big particle if set.
case Sphere:
if (i==0 && parameters.enableSphereLight && number > 40) {
particle->texture = flareTexture;
particle->xspeed = leaderParticle->xspeed;
particle->yspeed = leaderParticle->yspeed;
particle->zspeed = 0.0;
particle->colour[0] /= 2.0;
particle->colour[1] /= 2.0;
particle->colour[2] /= 2.0;
float impression = power * (float)number/5.0;
particle->pixelSize = 25.0 * DRAND + impression;
if (parameters.enableFade) {
particle->startLife = particle->life = 0.040;
} else {
particle->startLife = 1.3;
particle->life = 1.8;
}
}
break;
//
case Splitter:
particle->particleType = Particle::FireWorkLeaderParticle;
particle->pixelSize *= 3.0;
particle->startLife = particle->life = tmp1 * (0.75 + DRAND/3.0);
if (particle->zspeed < 0)
particle->zspeed = -particle->zspeed;
break;
case Circle:
case BiCircle:
tmp5 = 2 * M_PI * DRAND;
//MMX can be useful.. if you know how to use it :-)
if ( fwType == BiCircle && i > number/2 ) {
GLfloat ey = cos(tmp5),
ez = sin(tmp5);
particle->xspeed = power * ( tmp3*ez );
particle->yspeed = power * ( tmp2*ey - tmp1*tmp4*ez );
particle->zspeed = power * ( tmp1*ey + tmp2*tmp4*ez );
} else {
GLfloat ex = sin(tmp5),
ey = cos(tmp5);
particle->xspeed = power * ( tmp4*ex );
particle->yspeed = power * ( tmp1*tmp3*ex + tmp2*ey );
particle->zspeed = power * ( -tmp2*tmp3*ex + tmp1*ey );
}
break;
case AngelHairs:
particle->zacc = -9.807 * (0.05 + DRAND*0.20);
particle->life = 2.0 + DRAND*2.5;
particle->startLife = particle->life - 1;
if (particle->zspeed < 0)
particle->zspeed *= -1;
//particle->pixelSize = 5.0;
break;
case Spirals:
particle->texture = diastarTexture;
break;
//discard cases
case SuperNova:
case NoRender:
break;
}
particleList.append(particle);
}
}
void KFireSaver :: timerEvent(TQTimerEvent*)
{
timeval tv;
gettimeofday(&tv,NULL);
double currentTime = (double)tv.tv_sec + (double)tv.tv_usec/1000000.0;
bool chooseType = false,
chooseColor = false,
chooseOthers = false,
updateTimings = false;
bool firstTime = showp.timeStamp == 0.0;
bool endOfScene = currentTime >= showp.timeStamp;
if (firstTime)
switch (showp.ShowType)
{
case Monotype:
/* first time choose the type, color and attributes will
be choosed randomly for every firework which explodes*/
showp.forceType = true;
chooseType = true;
break;
case Monochrome:
/* first time choose the color, type and attributes will
be choosed randomly for every firework which explodes*/
showp.forceColour = true;
chooseColor =
chooseOthers = true;
break;
default: break;
}
if (endOfScene || firstTime)
switch (showp.ShowType)
{
case Show:
/* if a scene ended, randomize global parameters for the
whole next scene */
showp.forceType = true;
showp.forceColour = true;
showp.forcePower = true;
chooseOthers =
chooseColor =
chooseType = true;
updateTimings = true;
break;
default: break;
}
if ( chooseType )
{
showp.type = pickType();
if (parameters.typesCount < 2)
showp.typeSec = NoRender;
else
while ((showp.typeSec = pickType()) == showp.type);
}
if ( chooseColor ) {
showp.colour = pickColour();
showp.colourSec = pickColour();
}
if ( chooseOthers )
{
showp.powerEnvelop = DRAND * 8.0 + 3.0;
if (DRAND > 0.9)
{
showp.forceBicolour = true;
showp.colourSec = pickColour();
} else
showp.forceBicolour = false;
}
if ( firstTime || updateTimings )
{
if (DRAND < 0.2)
showp.timeGap = 1.0 + DRAND * 2.0;
else
showp.timeGap = 3.0 + DRAND * 10.0;
showp.timeStamp = currentTime + showp.timeGap;
showp.timeGap /= 1.5; //hack to introduce delay in sine func
}
updateGL();
}
void KFireSaver :: burnLogo(TQImage * image)
{
if (!image || image->isNull())
return;
int step = parameters.enableReduceLogo ? 2 : 1,
imageW = image->width(),
imageH = image->height(),
offsetX = imageW / 2,
offsetY = imageH / 2;
float speed = FIELDW_4 / (imageW > imageH ? imageW : imageH),
speedXOffs = 5 * (DRAND - DRAND),
speedYOffs = DRAND + DRAND + 1;
//if image is too big, lower sample points
while ((imageW/step)>96 || (imageH/step)>96)
step *= 2;
for (int y=0 ; y<imageH ; y+=step)
{
for (int x=0 ; x<imageW ; x+=step)
{
TQRgb pixel = image->pixel(x,y);
if ( tqAlpha(pixel) < 250 )
continue;
//if ( DRAND > 0.9 )
// continue;
Particle* particle = new Particle( Particle::LogoParticle );
particle->initializeValues();
particle->texture = particleTexture;
float xI = (x - offsetX) ,
yI = (offsetY - y) ;
particle->xpos = xI * speed * 0.5;
particle->zpos = yI * speed * 0.5 + 5;
particle->xspeed = xI * speed + speedXOffs;
particle->zspeed = yI * speed + speedYOffs;
particle->colour[0] = tqRed(pixel) / 255.0f;
particle->colour[1] = tqGreen(pixel) / 255.0f;
particle->colour[2] = tqBlue(pixel) / 255.0f;
particleList.append(particle);
}
}
if (parameters.enableSound)
playSound(sound_debris);
}
void KFireSaver :: playSound(TQString file)
{
//flush inactive players
KPlayObject * playObject = playObjectList.first();
while ( playObject )
{
if ( playObject->state() != Arts::posPlaying )
{
playObjectList.remove();
playObject = playObjectList.current();
} else
playObject = playObjectList.next();
}
//discart this sound if the player queue is already full (4 channels playing)
if ( playObjectList.count() >= 6 )
return;
// not needed when all of the files are in the distribution
//if (!TQFile::exists(file))
//return;
KPlayObjectFactory factory(artsServer.server());
playObject = factory.createPlayObject(KURL(file), true);
if (playObject && !playObject->isNull())
{
playObject->play();
playObjectList.append(playObject);
}
}
bool KFireSaver :: loadTexture( TQString fileName, unsigned int & textureID )
{
//reset texture ID to the default EMPTY value
textureID = 0;
//load image
TQImage tmp;
if ( !tmp.load( fileName ) )
return false;
//convert it to suitable format (flipped RGBA)
TQImage texture = TQGLWidget::convertToGLFormat( tmp );
if ( texture.isNull() )
return false;
//get texture number and bind loaded image to that texture
glGenTextures( 1, &textureID );
glBindTexture( GL_TEXTURE_2D, textureID );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR );
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR );
glTexImage2D( GL_TEXTURE_2D, 0, 4 /* 3 ??? */, texture.width(), texture.height(),
0, GL_RGBA, GL_UNSIGNED_BYTE, texture.bits() );
return true;
}
void KFireSaver :: freeTexture( unsigned int & textureID )
{
if ( textureID > 0 )
glDeleteTextures( 1, &textureID );
textureID = 0;
}
void KFireSaver :: readConfig ()
{
KConfig config("kfiresaverrc",true,false);
// show
config.setGroup( "Show" );
showp.ShowType = (enum enumShowType)config.readNumEntry( "ShowType", 1 );
parameters.fireworksFrequency = 11 - config.readNumEntry( "FireworksFrequency", 7 );
if ( parameters.fireworksFrequency < 1 )
parameters.fireworksFrequency = 1;
if ( parameters.fireworksFrequency > 11 )
parameters.fireworksFrequency = 11;
parameters.fireworksFrequency *= (parameters.fireworksFrequency + 1); //*karl gauss's sum*
parameters.particleSize = config.readNumEntry( "ParticlesSize", 0 );
if ( parameters.particleSize < -5 )
parameters.particleSize = -5;
if ( parameters.particleSize > 5 )
parameters.particleSize = 5;
if ( parameters.enableBottomFire = config.readBoolEntry( "enable-BottomFire", true ) )
{
TQColor blue = TQt::darkBlue;
parameters.bottomFireColor = config.readColorEntry( "BottomFireColor", &blue );
}
parameters.enableSound = config.readBoolEntry( "enable-Sounds", false );
parameters.enableNoOverhead = config.readBoolEntry( "enable-NoOverhead", true );
parameters.enableRealtime = config.readBoolEntry( "enable-FrameSkip", true );
// fireworks
config.setGroup( "Fireworks" );
parameters.typesCount = 0;
if ( config.readBoolEntry( "use-Classic", true ) )
parameters.typesT[parameters.typesCount++] = Sphere;
if ( config.readBoolEntry( "use-Explosion", false ) )
parameters.typesT[parameters.typesCount++] = NoFW;
if ( config.readBoolEntry( "use-FlameRing", false ) )
parameters.typesT[parameters.typesCount++] = Circle;
if ( config.readBoolEntry( "use-FlameWorld", false ) )
parameters.typesT[parameters.typesCount++] = BiCircle;
if ( config.readBoolEntry( "use-Fall", false ) )
parameters.typesT[parameters.typesCount++] = AngelHairs;
if ( config.readBoolEntry( "use-Splitter", false ) )
parameters.typesT[parameters.typesCount++] = Splitter;
if ( config.readBoolEntry( "use-Spirals", false ) )
parameters.typesT[parameters.typesCount++] = Spirals;
if ( config.readBoolEntry( "use-SuperNova", false ) )
parameters.typesT[parameters.typesCount++] = SuperNova;
if ( !parameters.typesCount ) {
kdWarning() << "KFireSaver3D: Warning, no fireworks enabled in config file" << endl;
kdWarning() << " enabling 'Classic Spherical'" << endl;
parameters.typesCount = 1;
parameters.typesT[0] = Sphere;
}
parameters.typesT[ parameters.typesCount ] =
parameters.typesT[ parameters.typesCount-1 ];
parameters.colorsCount = 0;
if ( config.readBoolEntry( "use-Red", false ) )
parameters.colorsT[parameters.colorsCount++] = 0;
if ( config.readBoolEntry( "use-Orange", true ) )
parameters.colorsT[parameters.colorsCount++] = 1;
if ( config.readBoolEntry( "use-Green", false ) )
parameters.colorsT[parameters.colorsCount++] = 2;
if ( config.readBoolEntry( "use-Blue", false ) )
parameters.colorsT[parameters.colorsCount++] = 3;
if ( config.readBoolEntry( "use-White", true ) )
parameters.colorsT[parameters.colorsCount++] = 4;
if ( config.readBoolEntry( "use-Purple", false ) )
parameters.colorsT[parameters.colorsCount++] = 5;
if ( config.readBoolEntry( "use-DeepGreen", true ) )
parameters.colorsT[parameters.colorsCount++] = 6;
if ( !parameters.colorsCount )
{
kdWarning() << "KFireSaver3D: Warning enable at least one color" << endl;
kdWarning() << " enabling 'Blinding White'" << endl;
parameters.colorsCount = 1;
parameters.colorsT[0] = 4;
}
parameters.colorsT[ parameters.colorsCount ] =
parameters.colorsT[ parameters.colorsCount-1 ];
parameters.enableCombos = config.readBoolEntry( "use-Multicolor", true );
// specials
config.setGroup( "Specials" );
if ( parameters.enableLogos = config.readBoolEntry( "enable-Logos", true ) )
{
TQImage tempImage;
tempImage.setAlphaBuffer( true );
if ( config.readBoolEntry( "LogosTux", true ) )
if ( tempImage.load(locate("data","kfiresaver/kfs_tux.png")) )
imageList.append( new TQImage(tempImage) );
if ( config.readBoolEntry( "LogosKonqui", true ) )
if ( tempImage.load(locate("data","kfiresaver/kfs_kde.png")) )
imageList.append( new TQImage(tempImage) );
if ( config.readBoolEntry( "LogosKDEIcons", true ) ) {
const TQString icons[] = {
"3floppy_unmount", "cdrom_unmount", "hdd_mount", "kmix",
"network", "my-computer", "folder_home", "konqueror",
"kmail", "penguin", "personal" };
for ( int i = 0; i < 11; i++ )
imageList.append( new TQImage(DesktopIcon(icons[i],64).convertToImage()) );
}
parameters.enableReduceLogo = config.readBoolEntry( "LogosReduceDetail", true );
parameters.logoFrequency = 11 - config.readNumEntry( "LogosFrequency", 4 );
if ( parameters.logoFrequency < 1 )
parameters.logoFrequency = 1;
if ( parameters.logoFrequency > 11 )
parameters.logoFrequency = 11;
}
if ( parameters.enableStars = config.readBoolEntry( "enable-Stars", true ) )
{
parameters.enableStarFlickering = config.readBoolEntry( "StarsFlicker", false );
parameters.enableStarGradient = config.readBoolEntry( "StarsGradient", true );
parameters.starsNumber = config.readNumEntry( "StarsNumber", 4 );
if ( parameters.starsNumber < 0 )
parameters.starsNumber = 0;
if ( parameters.starsNumber > 10 )
parameters.starsNumber = 10;
}
parameters.enableWritings = config.readBoolEntry( "enable-Writings", true );
// effects
config.setGroup( "Effects" );
parameters.enableSphereLight = config.readBoolEntry( "enable-SphericalLight", true );
if ( parameters.enableFlash = config.readBoolEntry( "enable-Flash", false ) )
{
parameters.flashOpacity = config.readNumEntry( "FlashOpacity", 5 );
if ( parameters.flashOpacity < 0 )
parameters.flashOpacity = 0;
if ( parameters.flashOpacity > 10 )
parameters.flashOpacity = 10;
}
if ( parameters.enableFade = config.readBoolEntry( "enable-Fade", false ) )
{
parameters.fadeAmount = config.readNumEntry( "FadeIntensity", 3 );
if ( parameters.fadeAmount < 0 )
parameters.fadeAmount = 0;
if ( parameters.fadeAmount > 9 )
parameters.fadeAmount = 9;
}
if ( parameters.enableMegaFlares = config.readBoolEntry( "enable-Flares", true ) )
{
parameters.megaFlares = config.readNumEntry( "FlaresDimension", 5 );
if ( parameters.megaFlares < 0 )
parameters.megaFlares = 0;
if ( parameters.megaFlares > 10 )
parameters.megaFlares = 10;
parameters.megaFlares += 4;
parameters.megaFlares *= 2;
}
parameters.enableTrails = config.readBoolEntry( "enable-Trail", false );
}
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