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window.cpp
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363 lines (334 loc) · 13.3 KB
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#include <stdio.h>
#include <unistd.h>
#include <iostream>
#include "Cluster.hpp"
#include "Particle.hpp"
#include <GL/gl.h>
#include <GL/glu.h>
#include <cmath>
#include <GL/glut.h>
#include <cmath>
#include <muParser.h>
#include <muParserBase.h>
#include <string>
#include <sys/time.h>
#include <vector>
#include <thread>
#include "window.hpp"
#include "globals.h"
#define ESCAPE 27
#define KEY_W 119
#define KEY_A 97
#define KEY_S 115
#define KEY_D 100
using namespace std;
using namespace mu;
int window;
float offx=1.5f;
float offy=0.0f;
float offz=-6.0f;
bool keys[256];
float phi=0;
float thet=0;
string gravityx,gravityy,gravityz;
//vector<Particle> display;
Cluster *clusters;
Window::Window(Cluster *clu,string gravx, string gravy, string gravz){
clusters=clu;
gravityx=gravx;
gravityy=gravy;
gravityz=gravz;
cout<<xsize;
}
void Window::init(int width, int height){
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glClearDepth(1.0);
glDepthFunc(GL_LESS);
glEnable(GL_DEPTH_TEST);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0f, (GLfloat)width/(GLfloat)height,0.1f,100.0f);
glMatrixMode(GL_MODELVIEW);
}
void phys(string gravityx, string gravityy,string gravityz, int quad, Cluster *c){
Cluster *clusters = c;
//determines which quadrant to do math on
int xbound=0,ybound=0,zbound=0;
switch(quad) {
case 0:
xbound=0; ybound=0; zbound=0;
break;
case 1:
xbound=clustervalx/2; ybound=0; zbound=0;
break;
case 2:
xbound=0; ybound=clustervaly/2; zbound=0;
break;
case 3:
xbound=0; ybound=0; zbound=clustervalz/2;
break;
case 4:
xbound=clustervalx/2; ybound=clustervaly/2; zbound=0;
break;
case 5:
xbound=clustervalx/2; ybound=0; zbound=clustervalz/2;
break;
case 6:
xbound=0; ybound=clustervaly/2; zbound=clustervalz/2;
break;
case 7:
xbound=clustervalx/2; ybound=clustervaly/2; zbound=clustervalz/2;
break;
}
//creates 3 equation parsers for the vectorfield an defines references to x,y,z
Parser parsex;
Parser parsey;
Parser parsez;
parsex.SetExpr(gravityx);
parsey.SetExpr(gravityy);
parsez.SetExpr(gravityz);
double x=0,y=0,z=0;
parsex.ParserBase::DefineVar("x",&x);
parsex.ParserBase::DefineVar("y",&y);
parsex.ParserBase::DefineVar("z",&z);
parsey.ParserBase::DefineVar("x",&x);
parsey.ParserBase::DefineVar("y",&y);
parsey.ParserBase::DefineVar("z",&z);
parsez.ParserBase::DefineVar("x",&x);
parsez.ParserBase::DefineVar("y",&y);
parsez.ParserBase::DefineVar("z",&z);
//these values offset the rounding error from divide by two of clusterval
int roundoffx=clustervalx%2,roundoffy=clustervaly%2,roundoffz=clustervalz%2;
if(xbound==0) roundoffx=0;
if(ybound==0) roundoffy=0;
if(zbound==0) roundoffz=0;
for(int a = xbound; a<clustervalx/2+xbound+roundoffx; a++) {
for(int b = ybound; b<clustervaly/2+ybound+roundoffy; b++) {
for(int c = zbound; c<clustervalz/2+zbound+roundoffz; c++) {
for(unsigned long d = 0; d<clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.size(); d++) {
//sets x,y,z for use in vector field. offset because 0,0,0 should be in middle
x=clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).x-xsize/2;
y=clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).y-ysize/2;
z=clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).z-zsize/2;
double forcex=0,forcey=0,forcez=0;
for(int i=a-1; i<=a+1; i++)
for(int j=b-1; j<=b+1; j++)
for(int k=c-1; k<=c+1; k++)
if(i>=0 && j>=0 && k>=0 && i<clustervalx && j<clustervaly && k<clustervalz)
for(unsigned long l=0; l<clusters[i*clustervaly*clustervalz+j*clustervalz+k].particles.size(); l++) {
double disx=clusters[i*clustervaly*clustervalz+j*clustervalz+k].particles.at(l).x
-clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).x;
double disy=clusters[i*clustervaly*clustervalz+j*clustervalz+k].particles.at(l).
y-clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).y;
double disz=clusters[i*clustervaly*clustervalz+j*clustervalz+k].particles.at(l).z
-clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).z;
if(!(disx==0 && disy==0 && disz==0)) {
double dist = sqrt(disx*disx+disy*disy+disz*disz)/3;
double realdist = sqrt(disx*disx+disy*disy+disz*disz);
if(dist!=0) {
forcex+=(2/(dist*dist+.02)-1/((dist-2)*(dist-2)+1.5))* -1*disx/realdist;
forcey+=(2/(dist*dist+.02)-1/((dist-2)*(dist-2)+1.5))* -1*disy/realdist;
forcez+=(2/(dist*dist+.02)-1/((dist-2)*(dist-2)+1.5))* -1*disz/realdist;
}
}
}
//cout<<forcex;
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vx+=forcex;
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vy+=forcey;
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vz+=forcez;
//edge checking if wrapxyz=true, particles loop from one side to another
//if wrapxyz=false particles bounce off the boundaries
if(!wrapx) {
if(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).x<0)
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vx=
abs(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vx);
if(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).x>=xsize)
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vx=
-1*abs(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vx);
}else{
if(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).x<0)
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).x=xsize;
if(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).x>xsize)
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).x=0;
}
if(!wrapy) {
if(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).y<0)
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vy=
abs(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vy);
if(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).y>=ysize)
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vy=
-1*abs(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vy);
}else{
if(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).y<0)
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).y=ysize;
if(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).y>ysize)
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).y=0;
}
if(!wrapz) {
if(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).z<0)
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vz=
abs(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vz);
if(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).z>=zsize)
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vz=
-1*abs(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vz);
}else{
if(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).z<0)
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).z=zsize;
if(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).z>zsize)
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).z=0;
}
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vx+=parsex.Eval()/100;
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vy+=parsey.Eval()/100;
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vz+=parsez.Eval()/100;
}
}
}
}
for(int a = xbound; a<clustervalx/2+xbound+roundoffx; a++) {
for(int b = ybound; b<clustervaly/2+ybound+roundoffy; b++) {
for(int c = zbound; c<clustervalz/2+zbound+roundoffz; c++) {
for(unsigned long d = 0; d<clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.size(); d++) {
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).updatelocation();
}
}
}
}
}
void physics(){
for(int a = 0; a<clustervalx; a++)
for(int b = 0; b<clustervaly; b++)
for(int c =0; c<clustervalz; c++)
for(unsigned long d = 0; d<clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.size(); d++) {
int clusterx = clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).x/xsize*clustervalx;
int clustery = clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).y/ysize*clustervaly;
int clusterz = clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).z/zsize*clustervalz;
// cout<<clusterz<<"\n";
if(clusterx<clustervalx && clustery<clustervaly && clusterz<clustervalz && clusterx>=0 && clustery>=0 && clusterz>=0)
if(clusterx!=a ||clustery!=b || clusterz!=c) {
/*double x = clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).x;
double y = clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).y;
double z = clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).z;
double vx = clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vx;
double vy = clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vy;
double vz = clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).vz;*/
clusters[clusterx*clustervaly*clustervalz+clustery*clustervalz+clusterz].particles.push_back(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles[d]);
Particle tmp = clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles[d];
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles[d]=clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles[clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.size()-1];
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles[clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.size()-1]=tmp;
clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.pop_back();
d--;
}
}
thread threads[8];
for(int a = 0; a<8; a++) {
threads[a]=thread (phys,gravityx,gravityy,gravityz,a,clusters);
}
for(int a = 0; a<8; a++) {
threads[a].join();
}
}
void moveandrotate(){
if(keys[32]) {
offy-=.05+keys[(int)'m'];
}
if(keys[(int)'c'])
offy+=.05+keys[(int)'m'];
if(keys[(int)'w']) {
offz+=.05+keys[(int)'m'];
//keys[(int)'w']=false;
}
if(keys[(int)'s']) {
offz-=.05+keys[(int)'m'];
//keys[(int)'s']=false;
}
if(keys[(int)'d']) {
offx-=.05+keys[(int)'m'];
//keys[(int)'d']=false;
}
if(keys[(int)'a']) {
offx+=.05+keys[(int)'m'];
//keys[(int)'a']=false;
}
if(keys[(int)'j'])
thet+=1;
if(keys[(int)'l'])
thet+=-1;
if(keys[(int)'i'])
phi+=1;
if(keys[(int)'k'])
phi-=1;
}
void draw(){
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
moveandrotate();
struct timeval begin,end;
gettimeofday(&begin, NULL);
physics();
gettimeofday(&end,NULL);
// cout<<end.tv_usec-begin.tv_usec<<"\n";
glTranslatef(offx,offy,offz);
glScalef(.01/(pow(xsize*ysize*zsize,1/3)+1),.01/(pow(xsize*ysize*zsize,1/3)+1),.01/(pow(xsize*ysize*zsize,1/3)+1));
glRotatef(thet,0,1,0);
// glRotatef(thet,cos(thet)*sin(phi),sin(thet)*sin(phi),cos(phi));
struct timeval stop, start;
gettimeofday(&start, NULL);
gettimeofday(&stop,NULL);
// cout<<stop.tv_usec-start.tv_usec<<"\n";
for(int a = 0; a<clustervalx; a++)
for(int b = 0; b<clustervaly; b++)
for(int c =0; c<clustervalz; c++)
for(unsigned long d = 0; d<clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.size(); d++) {
glColor3f(0,255,0);
glBegin(GL_POINTS);
glVertex3f(((float)(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).x-xsize/2)),
((float)(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).y-ysize/2)),
((float)(clusters[a*clustervaly*clustervalz+b*clustervalz+c].particles.at(d).z-zsize/2)));
glEnd();
}
gettimeofday(&stop,NULL);
//cout<<stop.tv_usec-start.tv_usec<<"end \n";
/*glBegin(GL_QUADS);
glVertex3f(-1,1,0);
glVertex3f(-1,-1,0);
glVertex3f(1,-1,0);
glVertex3f(1,1,0);
glEnd();*/
glutSwapBuffers();
}
void resize(int width,int height){
if(height==0)
height=1;
glViewport(0,0,width,height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45.0f, (GLfloat)width/(GLfloat)height,0.1f,100.0f);
glMatrixMode(GL_MODELVIEW);
}
void keyPressed(unsigned char key, int x, int y){
keys[key]=true;
usleep(100);
if(key == ESCAPE) {
glutDestroyWindow(window);
exit(0);
}
}
void keyUp(unsigned char key, int x, int y){
keys[key]=false;
}
void Window::start(int argc, char **argv){
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_ALPHA | GLUT_DEPTH);
glutInitWindowSize(640,480);
window = glutCreateWindow("Particle Simulator");
glutDisplayFunc(&draw);
glutIdleFunc(&draw);
glutFullScreen();
glutReshapeFunc(&resize);
glutKeyboardFunc(&keyPressed);
glutKeyboardUpFunc(&keyUp);
init(640,480);
glutMainLoop();
}
void Window::update(vector<Particle> &p){
}