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authorEric Anholt <eric@anholt.net>2010-05-21 09:32:38 -0700
committerEric Anholt <eric@anholt.net>2010-05-21 12:20:39 -0700
commit68fc4b415e322f6744299e39864fbc377c6eff74 (patch)
tree4bafffd8b0105174f3c5c0ae327a005be9145990 /progs/demos/particles.cxx
parente4f4489e3fc0b36d72821b55794fb843b2b7fa5f (diff)
Remove demos that have moved to git+ssh://git.freedesktop.org/git/mesa/demos.
The remaining programs are ones I've had difficulty finding a build environment for to make the build system or are unit tests that should probably live next to their code instead. Hopefully people can bring over the build for remaining pieces they care about.
Diffstat (limited to 'progs/demos/particles.cxx')
-rw-r--r--progs/demos/particles.cxx219
1 files changed, 0 insertions, 219 deletions
diff --git a/progs/demos/particles.cxx b/progs/demos/particles.cxx
deleted file mode 100644
index b88c318e0b..0000000000
--- 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];
-}