Remove demos that have moved to git+ssh://git.freedesktop.org/git/mesa/demos.

[mesa.git] / progs / demos / particles.cxx

diff --git a/progs/demos/particles.cxx b/progs/demos/particles.cxx
deleted file mode 100644 (file)
index b88c318..0000000
--- a/progs/demos/particles.cxx
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- * This program is under the GNU GPL.
- * Use at your own risk.
- *
- * written by David Bucciarelli (humanware@plus.it)
- *            Humanware s.r.l.
- */
-
-#include <stdlib.h>
-
-#include "particles.h"
-
-#define vinit(a,i,j,k) {\
-  (a)[0]=i;\
-  (a)[1]=j;\
-  (a)[2]=k;\
-}
-
-#define vadds(a,dt,b) {\
-  (a)[0]+=(dt)*(b)[0];\
-  (a)[1]+=(dt)*(b)[1];\
-  (a)[2]+=(dt)*(b)[2];\
-}
-
-#define vequ(a,b) {\
-  (a)[0]=(b)[0];\
-  (a)[1]=(b)[1];\
-  (a)[2]=(b)[2];\
-}
-
-#define vinter(a,dt,b,c) {\
-  (a)[0]=(dt)*(b)[0]+(1.0-dt)*(c)[0];\
-  (a)[1]=(dt)*(b)[1]+(1.0-dt)*(c)[1];\
-  (a)[2]=(dt)*(b)[2]+(1.0-dt)*(c)[2];\
-}
-
-#define clamp(a)        ((a) < 0.0 ? 0.0 : ((a) < 1.0 ? (a) : 1.0))
-
-#define vclamp(v) {\
-  (v)[0]=clamp((v)[0]);\
-  (v)[1]=clamp((v)[1]);\
-  (v)[2]=clamp((v)[2]);\
-}
-
-
-float rainParticle::min[3];
-float rainParticle::max[3];
-float rainParticle::partLength=0.2f;
-
-
-static float vrnd(void)
-{
-  return(((float)rand())/RAND_MAX);
-}
-
-
-particle::particle()
-{
-  age=0.0f;
-
-  vinit(acc,0.0f,0.0f,0.0f);
-  vinit(vel,0.0f,0.0f,0.0f);
-  vinit(pos,0.0f,0.0f,0.0f);
-}
-
-void particle::elapsedTime(float dt)
-{
-  age+=dt;
-
-  vadds(vel,dt,acc);
-
-  vadds(pos,dt,vel);
-}
-
-/////////////////////////////////////////
-// Particle System
-/////////////////////////////////////////
-
-particleSystem::particleSystem()
-{
-  t=0.0f;
-
-  part=NULL;
-
-  particleNum=0;
-}
-
-particleSystem::~particleSystem()
-{
-  if(part)
-    free(part);
-}
-
-void particleSystem::addParticle(particle *p)
-{
-  if(!part) {
-    part=(particle **)calloc(1,sizeof(particle *));
-    part[0]=p;
-    particleNum=1;
-  } else {
-    particleNum++;
-    part=(particle **)realloc(part,sizeof(particle *)*particleNum);
-    part[particleNum-1]=p;
-  }
-}
-
-void particleSystem::reset(void)
-{
-  if(part)
-    free(part);
-
-  t=0.0f;
-
-  part=NULL;
-
-  particleNum=0;
-}
-
-void particleSystem::draw(void)
-{
-  if(!part)
-    return;
-
-  part[0]->beginDraw();
-  for(unsigned int i=0;i<particleNum;i++)
-    part[i]->draw();
-  part[0]->endDraw();
-}
-
-void particleSystem::addTime(float dt)
-{
-  if(!part)
-    return;
-
-  for(unsigned int i=0;i<particleNum;i++) {
-    part[i]->elapsedTime(dt);
-    part[i]->checkAge();
-  }
-}
-
-/////////////////////////////////////////
-// Rain
-/////////////////////////////////////////
-
-void rainParticle::init(void)
-{
-  age=0.0f;
-
-  acc[0]=0.0f;
-  acc[1]=-0.98f;
-  acc[2]=0.0f;
-
-  vel[0]=0.0f;
-  vel[1]=0.0f;
-  vel[2]=0.0f;
-
-  oldpos[0]=pos[0]=min[0]+(max[0]-min[0])*vrnd();
-  oldpos[1]=pos[1]=max[1]+0.2f*max[1]*vrnd();
-  oldpos[2]=pos[2]=min[2]+(max[2]-min[2])*vrnd();
-
-  vadds(oldpos,-partLength,vel);
-}
-
-rainParticle::rainParticle()
-{ 
-  init();
-}
-
-void rainParticle::setRainingArea(float minx, float miny, float minz,
-                                 float maxx, float maxy, float maxz)
-{
-  vinit(min,minx,miny,minz);
-  vinit(max,maxx,maxy,maxz);
-}
-
-void rainParticle::setLength(float l)
-{
-  partLength=l;
-}
-
-void rainParticle::draw(void)
-{
-  glColor4f(0.7f,0.95f,1.0f,0.0f);
-  glVertex3fv(oldpos);
-
-  glColor4f(0.3f,0.7f,1.0f,1.0f);
-  glVertex3fv(pos);
-}
-
-void rainParticle::checkAge(void)
-{
-  if(pos[1]<min[1])
-    init();
-}
-
-void rainParticle::elapsedTime(float dt)
-{
-  particle::elapsedTime(dt);
-
-  if(pos[0]<min[0])
-    pos[0]=max[0]-(min[0]-pos[0]);
-  if(pos[2]<min[2])
-    pos[2]=max[2]-(min[2]-pos[2]);
-
-  if(pos[0]>max[0])
-    pos[0]=min[0]+(pos[0]-max[0]);
-  if(pos[2]>max[2])
-    pos[2]=min[2]+(pos[2]-max[2]);
-
-  vequ(oldpos,pos);
-  vadds(oldpos,-partLength,vel);
-}
-
-void rainParticle::randomHeight(void)
-{
-  pos[1]=(max[1]-min[1])*vrnd()+min[1];
-
-  oldpos[1]=pos[1]-partLength*vel[1];
-}